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VEGA 76 - HellermannTyton

1. This instrument complies with the prescriptions of the European directive on low voltage 2006 95 CEE LVD and EMC directive 2004 108 EEC 13 3 ACCESSORIES 13 3 1 Standard accessories Description Code Carrying case BORSA2051 External power supply 12VDC A0050 Flexible clamp meter 3000A 3pcs HTFLEX33 Set of 4 cables and 4 alligator clips KITENERGY2 Windows software RS 232 serial cable TOPVIEW User manual Certificate of calibration ISO9000 13 3 2 Optional accessories Description Code Clamp meter 200A and 2000A HP30C2 Clamp meter 3000A HP30C3 Kit for CT 1A and 5A 1V connection HT903 Belt kit CN0050 EN 47 VEGA 76 14 APPENDIX 1 MESSAGES DISPLAYED EN 48 Advices Message Description AUTONOM Available memory autonomy for the recording which is being effected CLEAR ALL Enter The operator is trying to cancel all the recordings effected Press ESC in order not to cancel the whole memory press ENTER to confirm CLEAR LAST Enter The operator is trying to cancel the last recording effected Press ESC in order not to cancel the last recording press ENTER to confirm Data saved The data have been saved DATA SIZE Dimensions of the stored data HOLD By pressing the proper key the HOLD function has been Press HOLD again to disable this function activated Password A recording has been started and at
2. ENTER HOLD to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement e MENU to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement 4 START STOP to record selected parameters according to the instrument s settings see chapter 7 EN 23 VEGA 76 6 1 3 HARM mode Selecting the HARM mode one of the below screens will be displayed according to the settings made as per paragraph 5 22 The screens show the harmonics see paragraph 16 2 of the phase or phase to phase voltage 27 09 00 35 E 27 09 00 T735 312 27 09 00 L35812 Example of screen in single Example of screen in 3 wires Example of screen in 4 wires phase system three phase system three phase system The symbols used are described in Tab 1 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED The displayed histograms represent the harmonic content of the voltage under test The value of the first harmonic h01 fundamental at 50Hz is not represented in scale along with the other harmonics in order to maximiz
3. Vref LIM LIM P P 06 10 ESEE Example of 2 page in single phase mode with ANOM flag enabled Cete era a aa Example of 2 page in 4 wires three phase mode with ANOM flag enabled Example of 2 page in 3 wires three phase mode with ANOM flag enabled If you want to change Voltage Harm Selection place the cursor on the corresponding Pg symbol then Press F3 Use the keys F1 F2 to position the cursor on the desired voltage harmonic and use the keys F3 F4 to select deselect its selected if highlighted in black Press ENTER to confirm Press ESC to leave the Menu RECORDER CONFIG VOLTAGE HARMONICS ENTER L without modifying the existing Settings The instrument will record the values of the selected harmonics corresponding to the voltages selected in one of the two pages of the Menu previously illustrated ETETEA ERN Example of sub page VOLTAGE HARMONICS EN 13 VEGA 76 RECORDER CONFIG CURRENT REC HARM REC Pg ON KE Example of 3 page in single phase mode From 2 page of RECORDER CONFIG MENU ENTER E Use the keys F1 F2 to position the cursor on the desired word and use the keys F3 F4 to modify the value or select deselect the desired parameter it s selected if marked in black Press ENTER to confirm Press ESC to leave the Menu without modifying the existing settings Es RECORDER CONFIG CURRE
4. 15 00 99 99A 1 27mV 8 499mV 0 850uV 1 0 rdg 8 5uV 100 0 270 0A 8 5mV 22 75mV SEI 1 0 rdg 42 5uV 270 0 999 9A 22 75mV 84 99mV H Au 1 0 rdg 85uV 1 00 3 00kA 85mV 255mV 850uV 0 5 rdg 8 5mV Minimal Current measurable is equal to 0 5 of Clamp Full Scale Input impedance 9 7KQ EN 45 VEGA 76 Power measurement cosg 0 5c 0 5i Value Ranges Accuracy Resolution 100 999 9W 0 1W Active power 1KW 999 9KW 0 1KW IMW 999 9MW 0 1MW 100 999 9VAR 0 1VAR Reactive power 1KVAR 999 9KVAR 0 1KVAR IMVAR 999 9MVAR 0 1MVAR 100 999 9VA SE 0 1VA Apparent power IKVA 999 9KVA 1 0 2digit 0 1KVA IMVA 999 9MVA 0 1MVA 100 999 9Wh 0 1Wh Active energy 1KWh 999 9KWh 0 1KWh 1MWh 999 9MWh 0 1MWh 100 999 9VARh 0 1VARh Reactive energy 1KVARh 999 9KVARh 0 1KVARh IMVARh 999 9MVARh 0 1MVARh Coso measurement Coso Resolution Accuracy expressed in degrees 0 20 0 6 0 50 0 01 0 7 0 80 1 Measurement of Voltage Current harmonics Range Accuracy Resolution DC 25h 5 0 2digit 26h 33h 10 0 2digit 0 1V 0 1A 34h 49h 15 0 2digit Harmonic values are considered zero by meter under the herewith thresholds DC if lt 1V or if lt 2 of 1th order 1th harmonic if lt 2V 2nd 49th if lt 1V or if lt 2 of 1th order Frequency Measurement Ins
5. CAUTION Should you fail to keep to the prescribed instructions you could damage the instrument and or its components or endanger your safety e When the instrument is connected to the circuit under test do not touch any unused terminal e When measuring current other currents located near the leads may affect the measuring accuracy e When measuring current always position the wire in the very middle of the jaws in order to obtain the highest accuracy e A measured value remains constant if the HOLD function is active Should you notice that the measured value remains unchanged disable the HOLD function 1 4 AFTER USE e After use turn off the instrument by pressing ON OFF for a few seconds e f you expect not to use the instrument for a long time please keep to the storage instructions described at paragraph 3 4 EN 4 Hor VEGA 76 2 GENERAL DESCRIPTION 2 1 INTRODUCTION The VEGA76 represent a new approach to the world of electrical measures Computer assisted instruments such as this one permit an easy and fast analysis of a huge quantity of data 2 2 FEATURES These instrument are able to v display in real time the electrical parameters of a single phase and three phase systems with and without neutral wire and the harmonic analysis of voltages and currents v conduct a direct Energy measurement without memorizing v memorize pressing SAVE key the sampled values of the Parameters pr
6. STOP MAN The recording of all the selected parameters will be interrupted manually by pressing START STOP see chapter 9 START AUTO STOP AUTO The recording of all the selected values will be started interrupted at the set dates and times In order to start the recording the user will have to press START STOP to set the instrument in Stand by mode until the start date and time previously set see chapter 7 INT PERIOD The value of this parameter determines every how many seconds the values of all the selected parameters will be memorized see chapter 16 4 1 Available choices 5sec 10sec 30sec 1min 2min 5min 10min 5min 30min 60min 15min HARM REC ON the instrument will record the values of the selected voltage and current harmonics corresponding to the voltages and currents selected in the corresponding pages Voltage and Current Example If the following Parameters are selected a Phase Voltage 1 and 2 THd Harmonics 1 3 5 b Phase Current 2 and 3 THd Harmonics 3 5 7 The instrument will record a The Phase Voltage 1 and 2 THD and Harmonics 1 3 5 of the Phase Voltage 1 and 2 while it will not record anything about Phase Voltage 3 b The Phase Current 2 and 3 THD and Harmonics 3 5 7 of the Phase Current 2 and 3 while it will not record nothing about Phase Current 1 OFF the instrument will not record any voltage or current harmonic selected ANOM REC ON the In
7. 1 GENARAL The VEGA76 is a precision instrument For its use and storage follow the recommendations and instructions contained in this manual in order to avoid possible damages or dangers Never use the instrument in environments with a high humidity or temperature Do not expose the instrument to direct sunlight Always turn off the instrument after use 12 2 BATTERY REPLACEMENT When the battery indicator on the display appears almost empty IF the batteries must be replaced CAUTION ZN Only qualified technicians should operate the instrument Before replacing the batteries disconnect the test leads from circuit under voltage in order to avoid electrical shocks Disconnect cables and clamps from the circuit under test Turn the instrument off by pressing ON OFF Remove the cables from the input terminals Unscrew the screw of the battery cover and remove the cover Replace the batteries with 6 new 1 5 V AA Reposition the cover and fasten it with the proper screw STA eg 12 3 CLEANING Use a soft dry cloth to clean the instrument Do not use wet clothes solvents water and so on 12 4 END OF LIFE Ki CAUTION this symbol indicates that equipment and its accessories shall be subject to a separate collection and correct disposal Es EN 44 VEGA 76 13 TECHNICAL SPECIFICATIONS 13 1 TECHNICAL CHARACTERISTICS The accuracy is stated as of the reading number of digits It refers to the follo
8. 2 27 09 00 1723532 27 09 00 17339712 27 09 00 1735412 ENERGY ENERGY ENERGY SINGLE PHASE THREE PHASE THREE PHASE Eal 0 000 kWh Eat 0 000 kWh Eat 0 000 kWh Ercl 0 000 KVARh Erct 0 000 KkVARh Erct 0 000 kKVARh Eril 0 000 kKVARh Erit 0 000 kKkVARh Erit 0 000 KVARh Esl 0 000 kVAh Est 0 000 KVAh Est 0 000 KkVAh P1 36 38 kW Pt 36 38 KW Pt 167 7 kW Ql 6 375 KVAR Qt 6 375 KVAR Qt 30 47 KVAR sl 36 94 KVA St 36 94 KVA St 170 4 KVA Meas Time 00 00 00 Meas Time 00 00 00 Meas Time 00 00 00 Meas Meas ChgP Meas Example of screen in single Example of screen in 3 wires Example of screen in 4 wires phase mode three phase mode three phase mode The symbols used are described in Tab 4 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are enabled E 4 F2 F1 to start stop immediately a direct energy measurement The energy counters will start increasing proportionally to the active power absorbed by the load The results obtained cannot be memorized If the active power is negative the counters will not increase only for 4 wires measurement to display the following screen On the basis of the settings made as per paragraph 5 2 following screens are displayed cyclically Overall three phase values values of phase 1 phase 2 and phase 3 SAVE ENTER HOLD MENU START STOP
9. 230V Upper Limit for Sag and Surge detection 6 Lower Limit for Sag and Surge detection 10 Selected voltages V1 V2 V3 Selected voltage harmonics THD 01 03 05 07 Selected currents 11 12 13 IN Selected current harmonics THD 01 03 05 07 CO GENERATION OFF Powers Pf and cos selected Pt P1 P2 P3 Ati Q1i Q2i Q3i Qtc Qic Q2c Q3c St S1 S2 S3 Pft Pf1 Pf2 Pf3 dot dpf1 dpf2 dpf3 Energies Eat Ea1 Ea2 Ea3 Erit Erit Eri2 Eri3 Erct Erc1 Erc2 Erc3 Est Es1 Es2 Es3 The RESET command will not erase the instrument s memory EN 20 Hor VEGA 76 6 SWITCH FUNCTIONS For a simple usage the main functions of the instrument can be selected by rotating the switch amp Position VOLTAGE to be used to display voltage and corresponding harmonics see paragraph 6 1 amp Position CURRENT to be used to display current and corresponding harmonics see paragraph 6 2 amp Position POWER it permits to display all the parameters measurable by the instrument voltage current active reactive and apparent power power factor cos and energy see paragraph 6 3 Position ENERGY to be used to display active reactive and apparent power power factor cosq and energy see paragraph 6 4 More practically we may schematize the right procedure of use as follows Check and eventually modify the basic settings of the instrument By rotating the switch select the type of Measurement to
10. be taken Connect the instrument to the electrical system to be tested Evaluate the values of the parameters under test If you want to record a Decide what to record b Press MENU and check if the existing parameters meet your requirements Connect the External Power Supply Start the recording by pressing START STOP ae 2 NO EN 21 Dor VEGA 76 6 1 VOLTAGE POSITION This function permits you to display in real time the RMS value of AC DC voltage the peak and Thd value of the 3 phase voltages see paragraph 16 2 the waveform and the harmonic spectrum of the 3 phase voltages 6 1 1 Symbols The VOLTAGE position has three working modes v METER v WAVE v HARM These modes will be described in detail in the next paragraphs The used symbols are described below Symbol Description V1 V2 V3 RMS value of the voltage of phase 1 phase 2 phase 3 respectively V12 V23 or V32 V31 RMS Value of the phase to phase voltages Vpk1 Vpk2 Vpk3 Peak value of the voltage of phase 1 phase 2 phase 3 and of the phase to phase Vpk12 Vpk32 voltage 12 and 32 respectively h01 h49 Harmonic 01 Harmonic 49 ThdV Factor of total harmonic distortion of the voltage see paragraph 16 2 freq Network frequency Phase sequence indicator 123 correct 132 inverted 023 null voltage on the black wire Phseq 1083 null voltage on the red wire 4120 null voltage on the blue wire 100 null vol
11. huge memory capacity Therefore we ve tried to find out a storage method which permits to compress the information to be memorized though providing significant data The chosen method is the integration one after a certain period called integration period which can be set from 5 seconds to 60 minutes 3600sec the instrument extracts from the sampled values the following values e Minimum value of the parameter during the integration period harmonics excluded e Medium value of the parameter intended as arithmetic average of all the values registered during the integration period e Maximum value of the parameter during the integration period harmonics excluded Only this information repeated for each parameter to be memorized are saved in the memory along with starting time and date of the integration period Once these data are memorized the instrument restarts to take measurements for a new period 16 4 2 Power factor calculations According to the standards in force the medium power factor can t be calculated as average of the instantaneous power factors It must be obtained from the medium values of active and reactive power Each single medium power factor of phase or total is therefore calculated at the end of each integration period on the medium value of the corresponding powers independently on the fact that they must be registered or not Besides for a better analysis of the type of load present on the lin
12. is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement e MENU to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement 4 START STOP to record selected parameters according to the instrument s settings see chapter 7 EN 27 VEGA 76 6 2 3 HARM mode Selecting the HARM mode one of the screens below will be displayed according to the settings made as per paragraph 5 2 The screens show the harmonics see paragraph 16 2 of the phase currents 27 09 00 1735412 27 09 00 17 35 12 1 Example of screen in single Example of screen in 3 wires phase mode or 4 wires three phase mode The symbols used are described in Tab 2 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED The displayed histograms represent the harmonic content of the current under test The value of the first harmonic h01 primary at 50Hz is not represented in scale along with the other harmonics in order to maximize the display of the latter In case both voltage and current are connected to the instrument inputs eventual negative values therefore represented under the horizontal axis indicate that such current harmonics are generated by the load Following key
13. least 5 minutes have Insertthe password passed from the last activity of the instrument see F1 F4 F3 F2 paragraph 7 Invalid date The inserted date is not correct Check the inserted date Energy Measuring The instruments taking an energy measurement Press F1 to stop it Memory Full The memory of the instrument is full Cancel some recordings after transferring them to a PC No ext supply A recording has been started without connecting the Verify it you really wantto start the recording extemal power supply without the external power supply In that case press START again No parameter sel A recording has been started without selecting any value to Press START STOP and select at least a be recorded value entering the MENU No Phase selected Voltage and or current harmonics have been selected and Select at least one phase voltage and or the corresponding flag has been enabled HARMONICS current ON but no phase voltage or current has been selected PASSWORD ERROR The inserted password is wrong see paragraph 7 Check the password PASSWORD OK The inserted password is correct Please wait The instrument is waiting for the recording to be started see paragraph 6 Recording The instrumentis recording see paragraph 6 Too many param More than 63 parameters have been selected harmonics Deselectsome values included or More than 38 parameters with CO GENERATION Flag enabled Too many record The quantity of recorded data Smp exceeds the Cance
14. of the equipment decide what to record and set the instrument accordingly In order to facilitate this task we have decided to supply the instrument pre set with a general configuration which should fit most cases EN 36 Hor VEGA 76 The chosen configuration is the following v ANALYZER CONFIG Frequency 50Hz Full scale of the clamps 1000A Transforming ratio of voltmetric transformers 1 Clamp Type Flex33d Type of electrical equipment 4 wires Password enabled v RECORDER CONFIG Start Manual the recording is started 1 minute after pressing the START STOP key Stop Manual Integration period 15min Recording of harmonics ON Recording of Voltage anomalies voltage Sag and Surge ON Voltage Reference for Sag and Surge detection 230V Upper Limit for Sag and Surge detection 6 Lower Limit for Sag and Surge detection 10 Selected voltages V1 V2 V3 Selected voltage harmonics THD 01 03 05 07 Selected currents 11 12 13 IN Selected current harmonics THD 01 03 05 07 CO GENERATION OFF Powers Pf and cosg selected Pt P1 P2 P3 Ati Q1i Q2i Q3i Qtc Qic Q2c Q3c St S1 S2 S3 Pft Pf1 Pf2 Pf3 dpft dpf1 dpf2 dpf3 Energies Eat Ea1 Ea2 Ea3 Erit Erit Eri2 Eri3 Erct Erc1 Erc2 Erc3 Est Es1 Es2 Es3 If the user changed the instrument s settings can quickly resume the above configuration using the RESET option see paragraph 5 5 By pressing START STOP the recording of
15. phase conductor respecting the specifications shown on the clamp and the connections shown in the picture In case of doubts set temporarily the 3PH4W mode then select the POWER position connect the blue wire of the instrument to earth and connecting one clamp at a time check if a The phase sequence is correct See paragraph 6 1 2 b The active power P of each phase is positive If negative turn the clamp of the phase in question c The value of the Pf of each phase is not excessively low typically it s not lower than 0 4 In case the Pf is lower than 0 4 check if the phase voltage is associated to the right clamp meter for example the voltage of phase 1 must be associated to the clamp meter no 1 Apply voltage to the electrical equipment under test if previously shut off for the instrument connection The values of the available electrical parameters will be displayed of the instrument For further details see the paragraph relevant to the position of the switch You can press HOLD to interrupt the updating in real time of the displayed values If you want to record a Check and eventually modify the values of the basic parameters see paragraphs 5 2 and 5 3 b Check and eventually modify the recording parameters by pressing MENU see the paragraph corresponding to the position of the rotary switch selected c To start the recording press START see chapter 6 EN 43 Hor VEGA 76 12 MAINTENANCE 12
16. powers for the recording the corresponding active energies will be automatically selected Selecting the reactive powers for the recording the corresponding reactive energies will be selected EN 15 VEGA 76 From 3 page of RECORDER CONFIG MENU ENTER L RECORDER CONFIG CO GENERATION ON POWER Pg ENERGY Pg Example of 4 page In order to select the ENERGIES to be recorded use the multifunction keys F1 F2 to position the cursor on the corresponding Pg Symbol and then press F3 ENTER L RECORDER CONFIG RECORDER CONFIG RECORDER CONFIG SE EN GER Erit Eril eEri2 Erct Ercl Erc2 Est Esl Es2 SA BEL ee ee E eee ee EE E Example of ENERGY sub page Example of ENERGY sub page Example of ENERGY sub page in single phase mode in 3 wires three phase mode in 4 wires three phase mode CAUTION Selecting deselecting the active energies for the recording the corresponding active powers will be automatically selected deselected Selecting deselecting the reactive energies for the recording the corresponding reactive powers will be selected deselected Selecting deselecting the reactive energies for the recording the corresponding reactive powers will be selected deselected EN 16 VEGA 76 Symbols Description Advised settings START MAN The recording of all the selected parameters will start at 00 seconds after pressing START STOP see chapter 7
17. the fundamental frequency Harmonic currents affect considerably the neutral wire of electric installations In most countries the mains power is three phase 50 60Hz with a delta primary and star secondary transformers The secondary generally provides 230V AC from phase to neutral and 400V AC from phase to phase Balancing the loads on each phase has always represented an headache for electric systems designers Until some ten years ago in a well balanced system the vectorial sum of the currents in the neutral was zero or quite low given the difficulty of obtaining a perfect balance The devices were incandescent lights small motors and other devices that presented linear loads The result was an essentially sinusoidal current in each phase and a low current on the neutral at a frequency of 50 60Hz Modern devices such as TV sets fluorescent lights video machines and microwave ovens normally draw current for only a fraction of each cycle thus causing non linear loads and subsequent non linear currents All this generates odd harmonics of the 50 60Hz line frequency For this reason the current in the transformers of the distribution boxes contains only a 50Hz or 60Hz component but also a 150Hz or 180Hz component a 50Hz or 300Hz component and other significant components of harmonic up to 750Hz or 900Hz and higher The vectorial sum of the currents in a well balanced system that feeds non linear loads may still be quite low Howe
18. the selected parameters is started according to the settings made in the MENU see paragraphs 5 2 and 5 3 The rotary switch position doesn t affect the recording setting As the default value of the integration periods is set at 15 minutes the instrument will store data in the temporary memory for 15 minutes Afterwards the instrument will elaborate the results saved in the temporary memory and will save the first series of values in the definitive memory Therefore if an integration period of 15 minutes has been set the recording will continue for about 15 minutes before producing a series of recorded values If the recording is interrupted before the selected integration period has completely elapsed the data stored in the temporary memory will not be elaborated and the corresponding series of values won t be transferred to the definitive memory EN 37 Hor VEGA 76 8 DURING A RECORDING If during a recording the external power supply is de energized the instrument will continue the recording using the internal battery power until the batteries are exhausted the data stored up to the point the instrument shuts down won t get lost For this we recommend you ALWAYS insert a new set of batteries before a long recording The instrument uses sophisticated algorithms to prolong the battery life Particularly if the instrument is recording or is measuring energy and the external power supply is not connected after about 5 minutes fro
19. to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 7 EN 35 Ala VEGA 76 7 START A RECORDING As you can read in the paragraph 5 3 a recording can be started manually or automatically Therefore after setting all the parameters and leaving the Menu the instrument will start to record v MANUALLY the recording will start when Instrument time reach the 00 seconds value after pressing START STOP v AUTOMATICALLY If the operator has pressed START STOP the instrument will remain in stand by until the date and time previously set then the recording will start While if the operator doesn t press START STOP the recording will never start CA
20. wire and reconnect it so the transducer label faces the opposite direction 5 Apply voltage to the electrical equipment under test if previously shut off for the instrument connection 6 The values of the available electrical parameters will be displayed on the display of the instrument For further details see the paragraph relevant to the position of the switch 7 You can press HOLD to interrupt the updating in real time of the displayed values 8 If you want to record a Check and if needed modify the values of the basic parameters see paragraphs 5 2 and 5 3 b Check and if needed modify the recording parameters by pressing MENU see the paragraph corresponding to the position of the rotary switch selected c To start the recording press START see chapter 6 EN 41 Hor VEGA 76 11 2 USING THE INSTRUMENT IN A THREE PHASE 4 WIRE SYSTEM CAUTION AN The maximum voltage between B1 B2 B3 B4 inputs is 600 V CATII 350V phase earth or 600V CATIII 300 V phase to earth Do not measure voltages exceeding the limits prescribed by this manual i RED SO L1 GREEN J i e a BLACK N z pi BLUE Instrument connection in a three phase 4 wire system CAUTION If possible before connecting the instrument to the electrical equipment to be tested take the power supply off the electrical equipment 1 Check and if needed modify the basic settings of the instrument see paragraphs
21. 020 null voltages on the black and blue wires 003 null voltages on the black and red wires 11 12 13 RMS value of the current of phase 1 phase 2 phase 3 respectively IN RMS value of the current of the neutral Pt P1 P2 P3 Values of the active power total of phase 1 phase 2 phase 3 respectively P12 P32 only for 3 wires measurement Value of the power measured by the Wattmeter 1 2 and 3 2 respectively see paragraph 16 3 2 Qt Q1 Q2 Q3 Values of the reactive power total of phase 1 phase 2 phase 3 respectively Q12 Q32 only for 3 wires measurement Value of the power measured by the VAR meter Va1 2 and 3 2 respectively see paragraph 16 3 2 St 1 S2 S3 Values of the apparent power total of phase 1 phase 2 phase 3 respectively 12 S32 only for 3 wires measurement Value of the power measured by the VA meter Va1 2 and 3 2 respectively see paragraph 16 3 2 Pft pf1 pf2 pf3 Values of the power factors total of phase 1 phase 2 phase 3 respectively dPft dpf1 dpf2 dpf3 Value of the cosg total of phase 1 phase 2 phase 3 respectively Ead Pd Values of the Total Active Energy and Active Power On demand respectively Esd Sd Values of the Total Apparent Energy and Apparent Power On demand respectively Tab 3 Symbols used in the position POWER The symbols i and c stand for reactive powers Q power factors Pf and cos dpf respectively inductive and capacitive EN 30 Hor VEGA 76 6 3
22. 2 METER mode Upon rotating the switch to this position the instrument selects automatically the METER mode corresponding to one of the below screens according to the settings made as per paragraph 5 2 27 09 00 L723 512 27 09 00 Tf 3 53x12 27 09 00 1735412 SINGLE PHASE POWER POWER POWER THREE WIRE THREE PHASE VI 230 0 V Pt 64 19 kw Pt 135 8 kW Il 145 3 A Qt 10 99 KVAR Qt 24 59 KVAR P1 32 91 kw St 65 12 KVA St 138 0 kVA Q1 5 767 KVAR pft 0 99 i pft 0 98 i sl 33 41 kVA dpft 1 00 i dpft 1 00 i pfl 0 99 i Phseg 123 dp f1 0 99 i WAVE ChgP WAVE ChgP WAVE Example of screen in single Example of screen in 3 wires Example of screen in 4 wires phase mode three phase mode three phase mode The symbols used are described in Tab 3 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are enabled e F2 to pass to WAVE mode see paragraph 6 3 3 e F1 only for three phase measurement to display the previous or the following screen On the basis of the settings made as per paragraph 5 2 following screens are displayed cyclically v Three phase 3 wires total three phase values Wattmeter phases 1 2 and 2 3 values Peak Demand v Three phase 4 wires total three phase values phasel phase2 and phase3 values Peak Demand amp SAVE to save in the instrument memory a record of Smp type see para
23. 5 2 and 5 3 Particularly the 3PH4W mode must be set 2 Rotate the switch to the position corresponding to the type of analysis desired In case of doubts select the position POWER see paragraph 6 3 3 Connect the phase and neutral voltage wires respecting the connections shown in the picture 4 If you want to measure current and power connect the clamp meter to the phase conductor respecting the specifications shown on the clamp and the connections shown in the picture In case of doubts select the position POWER and connecting one clamp at a time check if a the phase sequence is correct see paragraph 6 1 2 b the active power P of each phase is positive If it s negative remove current transducer from the wire and reconnect it so the transducer label faces the opposite direction c the value of the Pf of each phase is not excessively low typically it s not lower than 0 4 In case the Pf is lower than 0 4 check if the phase voltage is associated to the right clamp meter for example the voltage of phase 1 must be associated to the clamp meter no 1 5 Apply voltage to the electrical equipment under test if previously shut off for the instrument connection 6 The values of the available electrical parameters will be displayed For further details see the paragraph relevant to the position of the switch 7 You can eventually press HOLD to interrupt the updating in real time of the displayed values 8 If you want to r
24. CE EM User manual Copyright HT ITALIA 2009 Release EN 1 06 16 02 2009 Hor VEGA 76 Contents 1 PRECAUTIONS AND SAFETY MEAGUREMENTSG use 3 iene 3 1 2 Preliminary instructions saepe 3 UE RTE lun 4 14 PY WSC Ss niro 4 2 GENERAL DESCRIPTION deed deeg 5 E E ug ee Mee no ilaele li lille 5 2a 5 IMI elle ta 5 3 PREPARING THE INSTRUMENT 6 dpi 6 3 2 Instrument EIER eege deiere 6 CEE 010 PARO RIA 6 Ee iaia 6 4 HOW TO OPERATE Lucci 7 4 1 Instrument desceriplion uil iena 7 4 2 Keyboard E E le EE 7 4 3 Display E 9 12 EE 8 4 4 e e le 8 5 MENUGENERAL ee 9 5 1 Initial Settings PR E IE 9 5 1 1 How to adjust the EE 9 5 1 2 How to set date Alden 9 5 1 3 How to set the language E 9 5 2 Basic Setting ANALYZER CONFIG vicsscacsscssccssviacsscideesaesdiscesacadccaina iii 10 5 2 1 How to set the type of electrical system under test 10 5 2 2 How to set the fundamental freQUency kkKNRRERNEEEEEEEREEREEEEEEEEEEEEREEEn 10 5 2 3 How to set the current range E 10 524 HowiosettheCliampTypt ca 11 5 2 5 How to set the value of the transformer voltage ratio TV RATIO 11 5 2 6 How to enable disable the password ceceeseecene cree ee eeeeeeeeeeeeeeeeesnenseenenseeeeetenes 11 5 3 Basic Setting RECORDER CONFIG lola 12 54 ANALYZER MEMORY elia 19 5 5 PEED ssaa ia 20 bi SWITCH KE Te te LE 21 GC e ele BEE 22 dd SS 22 6 1 2 ME
25. ER to leave this page confirming the modifications made Press ESC to leave the Menu without modifying the existing parameters The various pages of the RECORDER CONFIG can be schematics as follows EN 12 VEGA 76 To Select MANUAL or AUTOMATIC start stop mode place the cursor on MANU or AUTO using the key F1 or 1F2 and select the desired mode using F3 or F4 A RECORDER CONFIG START STOP Use the keys F1 F2 to position the MANU cursor on the desired word and use the keys F3 F4 to select deselect the desired parameter it s selected if marked in black Use the keys F1 F2 to position the cursor on the desired word and use the keys F3 F4 to modify the value INT PERIOD 15min HARM REC ON ANOM REC ON Press ENTER to confirm and leave the Menu keeping the settings made Press ENTER to confirm and proceed inside the Menu the Menu keeping the settings made Press ESC to leave the Menu Press ESC to leave the Menu without modifying the existing parameters without modifying the existing 1 Page of the RECORDER parameters CONFIG MENU ENTER L RECORDER CONFIG RECORDER CONFIG RECORDER CONFIG VOLTAGE VOLTAGE REC VOLTAGE REC i dA Viz V32 V31 HARM REC Pg ON HARM REC Pg ON HARM REC Pg ON Vref LIM LIM P N 06 10 230V 243 8V 207 0V P N 06 10 230V 243 8V 207 0V 400V 424 0V 360 0V Vref LIM LIM
26. IN tral tivel Single phase D neutral respectively 3 wires 1 12 13 4 wires I1 12 13 IN THD DC 01 49 Current Total Harmonic Distortion DC Component 01 49 Harmonics respectively THD 01 03 05 07 EN 17 VEGA 76 CO GENERATION ON the instrument is able to face situations of CO GENERATION of electrical equipment that is the equipment under test is able to generate energy besides absorbing it Accordingly the instrument will record the powers and energies both absorbed and generated see paragraph 16 3 1 If this flag is enabled the maximum number of parameters which can be selected decrease to 38 OFF the instrument will record ONLY the powers and energies absorbed Pt P1 P2 P3 P12 P32 Values of the active power total of phase 1 phase 2 and phase 3 only for 3 wires measurement value of the power measured by the Wattmeter 1 2 and 3 2 respectively Single phase P1 3 wires Pt 4 wires Pt P1 P2 P3 Qti Qi Q2i Q3i Q12i Q32i Values of the inductive reactive power total of phase 1 phase 2 phase 3 only for 3 wires measurement value of the reactive inductive power measured by the VAR meters 1 2 and 3 2 respectively Single phase OU Q1c Qtc Qic Q2c Q3c Q12c Q32c Values of the capacitive reactive power total of phase 1 phase 2 phase 3 only for 3 wires measurement value of the reactive capacitive power measured by th
27. NT REC HARM REC Pg ON Example of 3 page in 3 wires three phase mode If you want to change Current Harm Selection place Cursor on the corresponding Pg symbol then Press F3 RECORDER CONFIG CURRENT HARMONICS e Bo BE eae Example of sub page CURRENT HARMONICS EN 14 RECORDER CONFIG CURRENT REC HARM REC Pg ON ae Gg REG EEN Example of 3 page in 4 wires three phase mode Use the keys F1 F2 to position the cursor on the desired current harmonic and use the keys F3 F4 to select deselect it s selected if marked in black Press ENTER to confirm Press ESC to leave the Menu without modifying the existing settings The instrument will record the values of the selected harmonics corresponding to the currents selected in one of the two pages of the Menu previously illustrated VEGA 76 From 3 page of RECORDER CONFIG MENU ENTER L RECORDER CONFIG CO GENERATION ON POWER Pg ENERGY Pg Example of 4 page In order to select the POWER to be recorded use the keys F1 F2 to position the cursor on the corresponding Po Symbol and then press F3 ENTER L RECORDER CONFIG RECORDER CONFIG RECORDER CONFIG wo do Oo SES WG RG EG EH PY tt fT E Example of POWER sub page in Example of POWER sub page Example of POWER sub page in single phase mode in 3 wires three phase mode 4 wires three phase mode CAUTION Selecting the active
28. S The active power positive or negative or the reactive power inductive or capacitive positive or negative is NOT defined in the panel and therefore acquires a null value 1 1 The power factor inductive or capacitive positive or negative is NOT defined in the panel 16 3 2 3 Phase 3 Wire System In the electrical systems distributed without neutral the phase voltages and the power factors and phase cosg lose importance Only the phase to phase voltages the phase currents and the total powers remain defined Phase 1 wie sn Three phase MASSE equipment Phase 3 gt Ge In this case the potential of one of the three phases for example phase 2 is taken on as reference potential The total values of the active reactive and apparent power are expressed as sum of the indications of the couples of Wattmeters VARmeters and VAmeters Pror Wi 2 W3 2 Stor d D W3_5 Ip VAR VAR3_5 y EN 55 Hor VEGA 76 16 4 MEASURING METHOD OUTLINES The instrument is able to measure voltages currents active powers inductive and capacitive reactive powers apparent powers inductive and capacitive power factors analogic or impulse parameters All these parameters are analyzed in a digital way for each phase voltage and current 6 x 128 samples are acquired on a module of 16 x 20ms repeated for the three phases 16 4 1 Integration periods The storage of all the data would require a
29. Symbols used in the position CURRENT EN 26 Hor VEGA 76 6 2 2 METER mode On rotating the switch to this position the instrument selects automatically the METER mode corresponding to one of the screens below according to the settings made as per paragraph 5 2 27 09 00 L723 512 27 09 0 0 ay GR 12 27 09 00 17 354 12 SINGLE PHASE CURRENT CURRENT CURRENT Il 30 21 A Il 30 21 A Il 30 21 A I2 23 53 A I2 23 53 A Ipkl 49 53 A 13 23 06 A 13 23 06 A ThdI 23 06 freq 50 0 Hz IN 8 4 A freq 50 0 Hz freq 50 0 Hz HARM WAVE HARM WAVE HARM WAVE Example of screen in single Example of screen in 3 wires Example of screen in 4 wires phase mode three phase mode three phase mode The symbols used are described in Tab 2 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are enabled e F1 to pass to HARMONIC mode see paragraph 6 2 3 e F2 to pass to WAVE mode see paragraph 6 2 4 amp SAVE to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word
30. TER EE 23 Ga ee Ee 24 614 WAVE Mi elica a 25 6 2 CURRENT OSM sees cet pl libidine lai iran 26 621 an E 26 622 MER dela ag 27 623 HARM MOIE arestante r a E e E a 28 624 WAVE Nic 29 6 3 POWER PO SUMO saetar ilaele loin 30 6 3 1 Melle 30 63 2 METER ilaria 31 6 3 2 1 PEAK ENERGY DEMAND lla 32 ddl WAVE lle 33 6 4 ENERGY positio eee ee eee ere a a aE r eoar ee ee 34 E Dale 34 042 METER rel 35 Dor VEGA 76 Tx START A RECORDING 36 KR DURING EEGEN enee 38 9 STOP A RECORDING OR AN ENERGY MEASUREMENT eeeeeeeees 39 10 CONNECT THE INSTRUMENT TO A PC 40 11 MEASURING EFSER 41 11 1 Using the Instrument in a Single Phase System 41 11 2 Using the Instrument in a Three Phase 4 Wire System 42 11 3 Using the Instrument in a Three Phase 3 Wire System 43 12 MAINTENANCE sisi 44 12 1 EN ili 44 12 2 Dette Ee 44 12 3 CERRO AR ITA 44 12 4 End Ea ase aa sk lla aa 44 13 TECHNICAL SPEGIFICGATIONS ii IRR 45 13 1 Rule RE EE 45 134 1 erun EE 46 E D fg null 46 IC EE 47 CERN 47 13 2 BTW PONG EE 47 13 2 1 Operating conditions slo eran 47 13 3 ee 47 13 3 1 Standard ACC OSI ella 47 13 3 2 OPlonal AGCSSON eegene 47 14 APPENDIX 1 MESSAGES DISPLAYED use 48 15 APPENDIX 2 RECORDABLE PARAMETERS SYMBOLS 49 16 APPENDIX 3 THEORETICAL OUTLINES 0 0 0c cccccccsisssicisccteset
31. U to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement START STOP to record selected parameters according to the instrument s settings see chapter 7 4 d EN 32 Hor VEGA 76 6 3 3 WAVE mode Selecting the WAVE mode one of the below screens will be displayed according to the settings made as per paragraph 5 2 The screens show the waveform of the phase currents and the phase or phase to phase voltage 27 09 00 L73512 27 09 00 I7 35 12 27 09 00 17435412 Example of screen in single Example of screen in 3 wires Example of screen in 4 wires phase mode three phase mode three phase mode The symbols used are described in Tab 3 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are enabled e F1 only for three phase mode to display the values relevant to the following phase On the basis of the settings made as per paragraph 5 2 following screens are displayed cyclically v 3 wires three phase values of the Wattmeter 1 2 values of the wattmeter 2 3 v 4 wires three phase values of phase 1 phase 2 and phase 3 7 ESC to return back to METER mode see paragraph 6 3 2 SAVE to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the i
32. UTION A For recordings ALWAYS use the external power supply even the instrument allows the operator to perform a recording using internal batteries If you press Start a recording without the external power supply the instrument will display a warning message No ext supply Press START key again to run the recording or press ESC to quit If during a recording the external power supply is de energized the instrument will continue the recording using the internal battery power until the batteries are exhausted the data stored until the definitive turning off won t get lost For this we recommend you ALWAYS insert a new set of batteries before a long recording The instrument uses sophisticated algorithms to prolong the battery life Particularly v The instrument switches OFF the backlight Automatically after 5 seconds v If the instrument is just displaying in real time and the external power supply is not connected after about 5 minutes from the last key pressure or switch rotation the instrument turns off automatically AUTOPOWER OFF function v If the instrument is recording or is measuring energy and the external power supply is not connected after about 5 minutes from the last key pressure or switch rotation the instrument starts a special procedure to save the batteries ECONOMY MODE the instrument keeps recording but the display is turned off Before starting a recording the operator should first evaluate the state
33. X 3 THEORETICAL OUTLINES 16 1 VOLTAGE ANOMALIES VOLTAGE SAG AND SURGE The VEGA 76 is able to record as voltage anomalies all those rms values calculated every 10ms beyond the percent thresholds of Voltage Reference Vref set during the programming from 1 to 30 with step of 1 The Reference must be set to Nominal Voltage Phase to Neutral for Single Phase and 4 wires three phase system Nominal Voltage Phase to Phase for 3 wires three phase system Example1 Three Phase System 3 wires Example2 Three Phase System 4 wires Vref 400V LIM 6 LIM 10 gt Vref 230V LIM 6 LIM 10 gt High Lim 400 x 1 6 100 424 0V High Lim 230 x 1 6 100 243 08V Low Lim 400 x 1 10 100 360 Low Lim 230 x 1 10 100 207 0V The Instrument will detect Voltage Anomalies if the RMS Voltage Values calculated every 10ms beyond the above calculated thresholds These limits remain unchanged throughout the recording period When a Voltage anomalie occurs the instrument records e The number corresponding to the phase where the anomaly occurred e The direction of the anomaly UP and DN identify respectively voltage drops sag and peaks Surge e The date and time of the beginning of the event in the form day month year hour minutes seconds hundredths of second e The duration of the event in seconds with a resolution of 10ms e The minimum or maximum value of voltage during the even
34. but the display is turned off 3 3 CALIBRATION The instrument complies with the standards mentioned in this manual Its performance is guaranteed for one year from the purchase date 3 4 STORAGE To guarantee accurate measurements after a long storage period in severe environmental conditions wait until the instrument resumes its normal conditions see environmental conditions listed at paragraph 13 2 VEGA 76 4 HOW TO OPERATE 4 1 INSTRUMENT DESCRIPTION LEGEND Inputs for voltage and currents RS232 serial output Plug for external power supply Display Rotary switch Keyboard D OEO N 4 2 KEYBOARD DESCRIPTION The following keys are available ON OFF F4 F2 F3 F4 MENU e ESC amp ENTER HOLD amp SAVE amp START STOP turning on turning off Backlight ON automatic Off after 5 sec multifunction keys The various functions are deducible from the symbols shown on the bottom of the display by pressing MENU it s possible to check and modify the recording parameters to leave a menu or a sub menu double function key v ENTER to confirm the settings made v HOLD to block the value updating in real time in all the screens This function is disabled when recording or measuring energy When this function is enabled it s not possible to record or take an energy measurement to save in the instrument memo
35. c number the smaller its energy is and therefore the impact it will have on the devices except for transformers EN 52 Hor VEGA 76 16 3 POWER AND POWER FACTOR DEFINITIONS In a standard electric installation powered by three sine voltages the following is defined Phase Active Power P V xn I cos n 1 2 3 Phase Apparent Power S Vig L n 1 2 3 Phase Reactive Power 2_ p2 EE BE n S Phase Power Factor n 1 2 3 P Total Active Power Prop P P P Total Reactive Power Qror Q Q 0 Total Apparent Power Total Power Factor Prror Van RMS value of voltage between phase n and Neutral TE RMS value of n phase current n Phase displacement angle between voltage and current of n phase where In presence of distorted voltages and currents the previous relations vary as follows Phase Active Power n 1 2 3 Phase Apparent Power n 1 2 3 Phase Reactive Power n 1 2 3 Phase Power Factor n 1 2 3 Distorted Power Factor APFn C0S n phase displacement between the n 1 2 3 fundamentals of voltage and current of n phase Total Active Power Prop P P P Total Reactive Power Qor Q Q O Total Apparent Power 2 PP Stor Di Qor Total Power Factor where Vkn RMS value of kth voltage harmonic between n phase and Neutral lkn RMS value of kth current harmonic of n phase 2xn Phase displacement angle between kth voltage harmonic and kth curren
36. e VA meters 1 2 and 3 2 respectively 3 wires Qti Qtc 4 wires Qti OU Q2i Q3i Qtc Q1c Q2c Q3c St 1 S2 S3 12 32 Values of the apparent power total of phase 1 phase 2 phase 3 only for 3 wires measurement value of the power measured by the VA meters 1 2 and 3 2 respectively Single phase 1 3 wires St 4 wires St 1 2 3 Pft Pf1 Pf2 Pf3 dpft dpf1 dpf2 dpfa Eat Ea1 Ea2 Ea3 Erit Erit Eri2 Eri3 Values of the power factors total of phase 1 phase 2 and phase 3 respectively Values of the cosg total of phase 1 phase 2 and phase 3 respectively Values of the active energy total of phase 1 phase 2 phase 3 Values of the inductive reactive energy total of phase 1 phase 2 and phase 3 Single phase PL dPf1 3 wires Pft dPft 4 wires Pft Pfl Pf2 Pf3 dPft dPfl dPf2 dPf3 Single phase Eal 3 wires Eat 4 wires EatEal Ea2 Ea3 Erct Erc1 Erc2 Erc3 Values of the capacitive reactive energy total of phase 1 phase 2 phase 3 Single phase Eril Erc1 3 wires Erit Erct 4 wires Erit Eu Eri2 Eri3 ErctErcl Erc2 Erc3 Est Es1 Es2 Es3 Values of the Apparent Energy total of phase 1 phase 2 phase 3 Single phase Es1 3 wires Est 4 wires EstEs1 Es2 Es3 The value of the network frequency is automatically selected if at least one phase voltage for the single phase mode or the 4 wires three phase mode or at
37. e and in order to have terms of comparison when studying the invoicing of the low cosg the values of inductive and capacitive cos are treated as independent parameters EN 56 Hor VEGA 76 17 AFTER SALE SERVICE 17 1 WARRANTY This instrument is guaranteed against any defects in material and manufacturing in compliance with the general sale terms and conditions During the warranty period all defective parts may be replaced but the manufacturer reserves the right to repair or replace the product If the instrument is to be returned to the after sale service or to a dealer its transport expenses must be borne by the customer Shipment shall be however agreed upon A report must always accompany the returned product stating the reasons of its return For shipping the instrument exclusively use the original packaging material any damage that may be due to non original packing shall be charged to the customer The manufacturer disclaims any responsibility for damages caused to people and or objects Guarantee is not applied in the following cases e Any repair and or replacement of accessories and the battery not covered by the guarantee e Any repair that might be necessary as a consequence of a misuse of the instrument or of its use with non compatible devices e Anyrepair that might be necessary as a consequence of improper packaging e Any repair that might be necessary as a consequence of service interventions carried
38. e the display of the latter In case both voltage and current are connected to the instrument inputs eventual negative values of the harmonics therefore represented under the horizontal axis indicate that such voltage harmonics are generated by the load Following keys are enabled F3 F4 e ESC amp SAVE amp ENTER HOLD e MENU amp START STOP to move the cursor of the selected harmonic leftwards and rightwards respectively At the same time the values relevant to the order no of the selected harmonic and to the corresponding absolute and relative values calculated on the basis of the fundamental are updated only for three phase mode to display the values of the harmonics of the other voltages available The voltage displayed is indicated above the F3 key to display the page of the harmonics h01 h24 symbol h24 or that of the harmonics h25 h49 symbol h49 to return back to METER mode see paragraph 6 1 2 to save in the instrument memory a record of Smp type see paragraph 5 4 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement Th
39. ecord a Check and if needed modify the values of the basic parameters see paragraphs 5 2 and 5 3 b Check and if needed modify the recording parameters by pressing MENU see the paragraph corresponding to the position of the rotary switch selected c To start the recording press START see chapter 6 EN 42 Hor VEGA 76 11 3 USING THE INSTRUMENT IN A THREE PHASE 3 WIRE SYSTEM 1 A The maximum voltage between B1 and B4 inputs is 600 V CATII 350V P e Please note that in this case the blue cable is connected with the green CAUTION phase earth or 600V CATIII 300 V phase to earth Do not measure voltages exceeding the limits prescribed by this manual e GREEN 2 2 2 VD L2 A BLACK L3 DW WW T_ s BLUE Instrument connection in a 3 wires three phase system CAUTION cable on phase 2 e f possible before connecting the instrument to the electrical equipment to be tested take the power supply off the electrical equipment Check and if needed modify the basic settings of the instrument see paragraphs 5 2 and 5 3 Particularly the 3 wires mode must be set Rotate the switch to the position corresponding to the type of analysis desired In case of doubts select the position POWER see paragraph 6 3 Connect the phase and neutral voltage wires respecting the connections shown in the picture If you want to measure current and power connect the clamp meter to the
40. ems to be malfunctioning i e if you notice deformations breaks leakage of substances absence of messages on the display and so on e Use only cables and accessories approved by HT Italia The following symbols are used on meter and in this manual Caution keep to what prescribed by the manual An incorrect use could damage the instrument or its components A High voltage risk of electric shock O Instrument with double insulation ZA AC voltage and current 1 2 PRELIMINARY INSTRUCTIONS e This instrument has been designed for use in places with pollution class 2 e It can be used for voltage and current measurements on installations of excess voltage category Ill 600 VAC phase to phase 300 VAC phase to earth or CATII 350 V phase to earth up to and no more than 2000 meters altitude e Pleasekeepto the usual safety standards aimed at Protecting against dangerous currents Protecting the instrument against incorrect operations e Only the accessories supplied with the instrument guarantee compliance with the safety standards Accordingly they must be in good conditions and if necessary they must be replaced with identical models e Do not take measurements on circuits exceeding the specified current and voltage limits e Before connecting cables crocodiles and clamps to the circuit under test make sure that the right function has been selected EN 3 Dor VEGA 76 1 3 DURING USE Please read carefully
41. er mode and the instrument will continue recording If you insert a wrong password the message Password error will be displayed under PASSWORD After a few seconds the display will return to meter mode and the instrument will continue recording In order to enable disable this option the correct password will have to be entered The display will return to meter mode and START STOP will have to be pressed again to stop the recording You will then need to re enter the ANALYZER CONFIG menu and scroll up or down to the item PASSWORD ON using the keys F1 and F2 Then turn the password off by pressing the keys F3 and F4 EN 11 VEGA 76 5 3 BASIC SETTING RECORDER CONFIG This option allows you to check and eventually modify the recording parameters and the selected parameters up to a maximum of 64 The calculation of the selected values is not affected by the rotary switch position If the number of selected values exceeds 64 the message sine sii will be displayed The MENU mode is divided into 4 separate sub pages v 1 page v 2 page v 3 page v 4 page This page allows you to set the START STOP mode AUTO or MANUAL the START and STOP time if AUTO mode is selected the Integration Period value the Enabling Disabling of Voltage Anomalies detection the Enabling Disabling of Harmonics detection Press ENTER to confirm the settings and pass to the following page Press ESC to leave the Menu wit
42. ergy and the corresponding Peak Date and Time 27 09 00 1 35 Ee 27 09 00 L735 302 PEAK DEMAND PEAK DEMAND THREE PHASE THREE PHASE Ead 98 36 kWh Esd 120 84 kVAh Pd 24 59 KW Sd 30 21 kVA Peak Date Peak Date 25 09 00 17 00 25 09 00 18 15 Int Period 15min Int Period 15min Rec n 06 Rec n 06 ChgP Wh VAh ChgP Wh VAh Example of PEAK ENERGY DEMAND screen e F1 to display the previous or the following screen On the basis of the settings made as per paragraph 5 2 following screens are displayed cyclically v Three phase 3 wires total three phase values Wattmeter phases 1 2 and 2 3 values Peak Demand v Three phase 4 wires total three phase values phasel phase2 and phase3 values Peak Demand e F3 to show Active Power and Active Energy values e F4 to show Apparent Power and Apparent Energy values amp SAVE to save in the instrument memory a record of Smp type see paragraph 5 4 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement e MEN
43. esent at instrument input generating a Smp record inside instrument memory It will be possible to analyze the memorized data ONLY by transferring it to a PC v record simultaneously pressing the START key after a proper setting RMS values of voltages currents corresponding harmonics active reactive and apparent powers power factors and cosg active reactive and apparent energies voltage anomalies voltage sag and surge with 10ms resolution It will be possible to analyze the recorded data ONLY by transferring them to a PC CAUTION A Please note the difference between memorize and record These terms will be used repeatedly in this manual Please focus on their definitions and distinctions 2 3 INITIAL SCREEN When turning on the instrument by pressing ON OFF this screen will appear for a few seconds Vega 76 HT ITALIA SN 00000000 VER X XX CALIBRATION DATE 00 00 00 BAUD RATE 57600 Here you can see serial number of the instrument SN firmware software release VER calibration date CALIBRATION transmission speed through serial I O Baud Rate EN 5 Hor VEGA 76 3 PREPARING THE INSTRUMENT 3 1 INITIAL CHECK This instrument has been checked before shipment from an electrical and mechanical point of view All possible precautions have been taken in order to deliver it in perfect condition Notwithstanding on receipt of the instrument we suggest that you check it summarily
44. ge Anomalies Sag and Surge detection only for Skylab v Smp values of the samples of voltage and current stored by pressing SAVE v DATA SIZE dimensions of the data saved in the instrument memory v REC TIME amount of memory available calculated on the basis of the parameters selected for recording therefore the most complete one expressed in the format days hours to make recordings The maximum quantity of Rec R amp a Smp which can be contained by the instrument is 35 Following keys are enabled e F1 F2 only if the quantity of Rec R amp a Smp is higher than 7 to run over all the recordings stored in the instrument memory ze F3 to cancel the last recording effected e F4 to cancel all the recordings effected EN 19 Hor VEGA 76 5 5 RESET This option re establishes the default settings of the instrument The default settings of the instrument consist of The not modified items are not interested by RESET command v ANALYZER CONFIG Frequency 50Hz Full scale of the clamps 1000A Transforming ratio of voltmetric transformers 1 Clamp Type Flex33d Type of electrical equipment 4 wires Password enabled v RECORDER CONFIG Start Manual the recording is started at 00 sec mark on clock after pressing the START STOP key Stop Manual Integration period 15min Recording of harmonics ON Recording of Voltage anomalies Sag and Surge ON Voltage Reference for Sag and Surge detection
45. graph 5 4 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement e MENU to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement ze START STOP to record selected parameters according to the instrument s settings see chapter 7 EN 31 Hor VEGA 76 6 3 2 1 PEAK ENERGY DEMAND In three phase system selecting the POWER Position and pressing F1 key 3 times you can reach the Peak Demand mode This mode shows the values corresponding to the running recording or to last performed recording if any recording is running The Peak Demand screen shows the Max Average value of Active Power and the corresponding Energy or Max Average value of Apparent Power and the corresponding Energy measured during the last or running recording The Average value is evaluated in the Integration Period set for the recording This screen also shows the corresponding Active En
46. hdl Factor of total harmonic distortion of the current see paragraph 16 2 Pt P1 P2 P3 Values of the total active power of phase 1 phase 2 phase 3 respectively P12 P32 only for 3 wires measurement Value of the power measured by the Wattmeter 1 2 and 3 2 respectively see paragraph 16 3 2 Qt Q1 Q2 Q3 Values of the total reactive power of phase 1 phase 2 phase 3 respectively Q12 Q32 only for 3 wires measurement Value of the power measured by the VARmeter 1 2 and 3 2 respectively see paragraph 16 3 2 St 1 S2 S3 Values of the total apparent power of phase 1 phase 2 phase 3 respectively 12 32 only for 3 wires measurement Value of the power measured by the VAmeter 1 2 and 3 2 respectively see paragraph 16 3 2 Pft pf1 pf2 pf3 Value of the total power factors power factors of phase 1 phase 2 phase 3 respectively dP t dpf1 dpf2 dpf3 Values of the total cosg of phase 1 phase 2 phase 3 respectively Eat Ea1 Ea2 Ea3 Values of the total active energy of phase 1 phase 2 phase 3 respectively Erit E Eri2 Er Values of the total inductive reactive Energy of phase 1 phase 2 phase 3 respectively Erct Erc1 Erc2 Erc3 Values of the total capacitive reactive Energy of phase 1 phase 2 phase 3 respectively Est Es1 Es2 Es3 Values of the total Apparent Energy of phase 1 phase 2 phase 3 respectively EN 49 Hor VEGA 76 16 APPENDI
47. hout modifying the existing parameters This page is devoted to the settings relevant to the VOLTAGE recording Press ENTER to confirm the settings and pass to the following page Press ESC to leave this page without modifying the existing parameters From this page you can enter the sub page Harmonics which permits to select the voltage harmonics to be recorded Press ENTER to confirm the settings and leave the Menu Harmonics Press ESC to leave the Menu Harmonics without modifying the existing parameters This page is devoted to the settings relevant to the CURRENT recording Press ENTER to confirm the settings and pass to the following page Press ESC to leave this page without modifying the existing parameters From this page you can enter the sub page Harmonics which permits to select the current harmonics to be recorded Press ENTER to confirm the settings and leave the Menu Harmonics Press ESC to leave the Menu Harmonics without modifying the existing parameters Menu composed of two sub pages devoted to the selection of the POWERS and ENERGIES to be recorded From this page you can enter the sub page POWER and ENERGY which permits to select the parameters to be recorded Selecting the active powers for the recording the corresponding active energies will be automatically selected Selecting the reactive powers for the recording the corresponding reactive energies will be selected Press ENT
48. ion of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement 4 e MENU to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement 4 START STOP to record selected parameters according to the instruments settings see chapter 7 EN 25 6 2 CURRENT POSITION This function permits to display in real time the RMS value of AC DC currents the peak and Thdl value see paragraph 16 2 of the 3 phase currents the waveform and the harmonic spectrum of the 3 phase currents VEGA 76 6 2 1 Symbols The CURRENT position has three working modes v METER v WAVE v HARM These modes will be described in detail in the next paragraphs The symbols used are described below Symbol Description 11 12 13 RMS value of the current of phase 1 phase 2 phase 3 respectively IN RMS value of the current on the neutral Ipk1 IpK2 Ipk3 Peak value of the current of phase 1 phase 2 phase 3 respectively h01 h49 Harmonic 01 harmonic 49 Thdl Total harmonic distortion factor of the current see paragraph 16 2 freq Network frequency Tab 2
49. ion the Battery life will be compromised EN 8 Hor VEGA 76 5 MENU GENERAL By pressing the MENU key the following screen will be displayed MENU GENERAL ANALYZER MEMORY RESET ANALYZER CONFIG RECORDER CONFIG CONTRAST DATE amp TIME LANGUAGE RI E I It s not possible to enter the MENU during a recording or a Real Time Energy measurement 5 1 INITIAL SETTINGS 5 1 1 Howto adjust the contrast By pressing the keys F1 and F2 position the cursor on the CONTRAST item and confirm it by pressing the ENTER key By pressing the keys F3 and F4 adjust the contrast higher values correspond to a higher contrast while lower values correspond to a lower contrast and press the ENTER key to SAVE the change or press ESC to quit the modification This setting will remain unchanged after turning off the instrument 5 1 2 Howto set date and time By pressing the keys F1 and F2 position the cursor on the DATE amp TIME item and confirm it by pressing the ENTER key By pressing the keys F1 and F2 position the cursor on the Date format FORMAT and pressing the F3 or F4 keys select one of the following Date format DD MM YY 2 digit for day 2 digit for Month 2 digit for Year or MM DD YY 2 digit for Month 2 digit for Day 2 digit for Year Then using F1 and F2 keys position the cursor on the value to be modified and change the value using F3 and F4 keys The time is expressed as hh mm 2 digit for hours 2 digi
50. is function is disabled during a recording or an energy measurement to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement to record selected parameters according to the instrument s settings see chapter 7 EN 24 Hor VEGA 76 6 1 4 WAVE mode Selecting the WAVE mode one of the below screens will be displayed according to the settings made as per paragraph 5 2 The screens show the waveform of the phase or phase to phase voltage 27 09 00 I7 3 5 12 27 09 00 7 235412 27 09 00 17435412 V12 400 2 V Vpk12 565 5 V freq 50 0 Hz eee e dC Example of screen in single Example of screen in 3 wires Example of screen in 4 wires phase system three phase system three phase system The symbols used are described in Tab 1 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are enabled eo FI only for three phase mode to display the values corresponding to the following phase amp ESC to return back to METER mode see paragraph 6 1 2 amp SAVE to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interrupt
51. l some recordings after transferring maximum allowed 35 them to a PC ERR SEQ The Phase Sequence isn t correct Check the Phase Sequence connection ERR P The active powers shown on the right side of the message If there isnt a situation of co generation are negative check if the clamps are properly connected ERR SEQ amp P The active powers shown on the right side of the message If there isn t a situation of co generation are negative and the Phase Sequence isn t correct check if the clamps are properly connected check the Phase Sequence connection ERR CONNECTION The instrument has detected a wrong connection to Check the Voltage connections Voltage inputs Error Vref The user set a Voltage reference not compatible with Check Voltage Reference set in CONFIG voltage at instrument s input RECORDER Error1 Error 5 The instrument memory is damaged Contact HT Italia assistance VEGA 76 15 APPENDIX 2 RECORDABLE PARAMETERS SYMBOLS Symbol Description V1 V2 V3 RMS value of the voltage of phase 1 phase 2 phase 3 respectively V12 V23 V31 Value of phase to phase voltages 11 12 13 RMS value of the current of phase 1 phase 2 phase 3 respectively IN RMS value of the current of the neutral DC Continuous component of voltage or current h01 h49 Harmonic 01 Harmonic 49 of voltage or current ThdV Factor of total harmonic distortion of the voltage see paragraph 16 2 T
52. least one phase to phase voltage for the 3 wires three phase mode is selected The symbols i and c stand for reactive powers Q power factors Pf and cos dpf inductive and capacitive respectively Selecting a power factor Pf or a cose dPf for the recording automatically their inductive value and their capacitive value will be recorded separately For eventual messages displayed see appendix 1 MESSAGES DISPLAYED EN 18 Hor VEGA 76 5 4 ANALYZER MEMORY This option permits you to display v The present content of the instrument memory v The size of the memorized data v The residual space available for future recordings expressed in days and hours AII the stored data can be displayed only if downloaded to a PC with the operating software After selecting ANALYZER MEMORY from the Main Menu the screen below will be displayed ANALYZER MEMORY 01 Smp 02 01 01 23 02 Rec 02 01 02 01 03 R amp a 02 01 02 01 04 Rec 02 01 02 01 05 R amp a 02 01 02 01 06 Rec 04 01 05 01 DATA SIZE 0 11Mb REC TIME 0d 06h T Nj LAST ALL Example of ANALYZER MEMORY screen v Rec recordings effected with respective Start and Stop dates expressed in the format day month start day month stop without Voltage Sag and Surge detection v R amp a recordings effected with respective Start and Stop dates expressed in the format day month start day month stop with Volta
53. m the last key pressure or switch rotation the instrument starts a special procedure to save the batteries ECONOMY MODE the instrument keeps recording but the display is turned off During a recording the following are disabled AUTOPOWER OFF function ON OFF key HOLD key SAVE key KSSS Press the MENU key and the following screen will appear INFO REC n XX START 09 18 01 11 35 INT PERIOD 15min REC PERIODS 00004 REC TIME 139d 02h HARM REC ON ANOM REC ON N ANOMALIES 00000 esse This page includes START Date and Time Integration Period Actual Number of Elapsed Integration Periods Actual Recording Time Status of Harmonic Flag Status of Voltage Anomalies Flag Number of Voltage anomalies occurred during the recording AS O EN 38 Hor VEGA 76 9 STOP A RECORDING OR AN ENERGY MEASUREMENT The instrument uses a protective routine to avoid the risk of being disturbed or interrupted during a recording or an energy measurement Once a recording or a direct energy measurement see paragraph 6 4 2 has been started with the option PASSWORD enabled after about 3 minutes from the last key pressure or switch rotation it won t be sufficient to press START STOP if a recording is running or F2 if an energy measuring is running to stop the recording it will be necessary to insert the password In order to insert the password which is not changeable press the multifunction keys in the following
54. nstrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement 4 d e MENU to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement 4 START STOP to record selected parameters according to the instrument s settings see chapter 7 EN 33 VEGA 76 6 4 ENERGY POSITION This function permits to display the values of the phase and total active powers the value of the phase and total capacitive and inductive reactive powers the values of the power factors and phase and total cose Furthermore the instrument is able to measure directly see 6 4 2 the values of the phase and total active energies and the values of the phase and total capacitive and inductive reactive energies 6 4 1 Symbols The position ENERGY has only one working mode v METER This mode will be described in detail in the next paragraphs The symbols used are described below Symbol Description Pt P1 P2 P3 Values of the total active
55. onic voltages which can be introduced into the network by the power supplier In normal conditions during whatever period of a week 95 if the RMS value of each harmonic voltage mediated on 10 minutes will have to be inferior than or equal to the values stated in the following table The total harmonic distortion THD of the supply voltage including all the harmonics up to 40 order must be inferior than or equal to 8 Odd harmonics Even harmonics Not multiple of 3 Multiple of 3 Order h Relative voltage Max Order h Relative voltage Max Order h Relative voltage Max 5 6 3 5 2 2 H 5 9 15 4 1 11 3 5 15 0 5 6 24 0 5 13 3 21 0 5 17 2 19 1 5 23 1 5 25 1 5 These limits theoretically applicable only for the supplier of electric energy provide however a series of reference values within which the harmonics introduced into the network by the users must be contained EN 51 Hor VEGA 76 16 2 3 Presence of harmonics causes Any apparatus that alters the sine wave or uses only a part of such a wave causes distortions to the sine wave and therefore harmonics All current signals result in some way virtually distorted The most common situation is the harmonic distortion caused by non linear loads such as electric household appliances personal computers or speed control units for motors Harmonic distortion causes significant currents at frequencies that are odd multiples of
56. out by unauthorised personnel e Any change to the instrument carried out without the express authorisation of the manufacturer e Use not provided for among the instrument specifications or in the instruction manual The content of this manual cannot be reproduced in any form whatsoever without express authorisation of the manufacturer All our products are patented and their trade marks registered The manufacturer reserves the right to modify the product specifications and price if this is aimed ata technological improvement 17 2 SERVICE If the instrument does not operate properly before contacting the after sale service check the cables and the test leads and replace them if necessary Should the instrument still operate improperly check that the operation procedure is correct and corresponds to the instructions given in this manual If the instrument is to be returned to the after sale service or to a dealer its transportation is on the customer s behalf Shipment shall be however agreed upon A report must always accompany the returned product stating the reasons of its return For shipping the instrument exclusively use the original packaging material any damage that may be due to non original packing shall be charged to the customer EN 57 Via della Boaria 40 48018 Faenza RA Italy Tel 39 0546 621002 4 linee r a Fax 39 0546 621144 Email ht htitalia it http Awww htitalia com
57. picture Set the desired value by pressing the keys F3 and F4 CAUTION J If FlexINT or Flex33d is selected the current range could be set only to 1000A or 3000A 5 2 5 How to set the value of the transformer voltage ratio TV RATIO The instrument can also be interfaced with step down transformers in the equipment under test it can display the value of he voltages present on the primary winding of these transformers To do this it will be necessary to set the value of the transformers windings ratio from 2 1 to 3000 1 The default is set at 1 1 for measurements of none transformer systems Select TV RATIO in the ANALYZER CONFIG menu Set the desired value by pressing the keys F3 and F4 5 2 6 How to enable disable the password The instrument is provided with a protective routine to avoid the risk of being disturbed or interrupted during a recording or an energy measurement Once a recording or a direct energy measurement has been started with the option PASSWORD enabled after about 3 minutes from the last key pressure or switch rotation it won t be possible to press START STOP to stop the recording PASSWORD will be displayed and it will be necessary to insert the password In order to insert the password which is not changeable press the multifunction keys in the following sequence within 10 seconds F1 F4 F3 F2 If you wait more than about 10 seconds the display will return to the met
58. power of phase 1 phase 2 phase 3 respectively P12 P32 only for 3 wires measurement Value of the power measured by the Wattmeter 1 2 and 3 2 respectively see paragraph 16 3 2 Qt Q1 Q2 Q3 Values of the total reactive power of phase 1 phase 2 phase 3 respectively Q12 Q32 only for 3 wires measurement Value of the power measured by the VARmeter 1 2 and 3 2 respectively see paragraph 16 3 2 St 1 52 53 Values of the total apparent power of phase 1 phase 2 phase 3 respectively 12 S32 only for 3 wires measurement Value of the power measured by the VAmeter 1 2 and 3 2 respectively see paragraph 16 3 2 Eat Ea1 Ea2 Ea3 Values of the total active energy of phase 1 phase 2 phase 3 respectively Erit E Eri2 Er Erct Erc1 Erc2 Erc3 Est Es1 Es2 Es3 Values of the total inductive reactive Energy of phase 1 phase 2 phase 3 respectivel Values of the total capacitive reactive Energy of phase 1 phase 2 phase 3 respectively Values of the total Apparent Energy of phase 1 phase 2 phase 3 respectively Tab 4 Symbols used in the position ENERGY The symbols i and c stand for reactive powers Q and energies Er inductive and capacitive respectively EN 34 VEGA 76 6 4 2 METER mode On rotating the switch to this position the instrument selects automatically the METER mode corresponding to one of the below screens according to the settings made as per paragraph 5
59. rument to the serial output of the PC through the serial cable Run the Topview software Select the PC instrument connection command Refer to software help on line for further instructions Ei a EN 40 Dor VEGA 76 11 MEASURING PROCEDURES 11 1 USING THE INSTRUMENT IN A SINGLE PHASE SYSTEM CAUTION A The maximum voltage between B1 and B4 inputs is 600 V CATII 350V phase earth or 600V CATIII 300 V phase to earth Do not measure voltages exceeding the limits prescribed by this manual Instrument connection in a single phase system CAUTION If possible before connecting the instrument to the electrical equipment to be tested take the power supply off the electrical equipment 1 Check and if needed modify the basic settings of the instrument see paragraphs 5 2 and 5 3 Particularly the single phase mode must be set 2 Rotate the switch to the position corresponding to the type of analysis desired In case of doubts select the position POWER see paragraph 6 3 3 Connect the phase and neutral voltage wires respecting the connections shown in the picture 4 If you want to measure current and power connect the clamp meter to the phase conductor respecting the specifications shown on the clamp and the connections shown in the picture In case of doubts select the position POWER and check if the active power P is positive If it s negative remove current transducer from the
60. ry a Record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to start stop manually a recording see chapters 7 and 9 EN 7 Dor VEGA 76 4 3 DISPLAY DESCRIPTION The display is a graphic module with a resolution of128 x 128 pixels 16384 pixels overall Each pixel has a dimension of 0 5mm x 0 5mm the visible area is a square of 73mm x 73mm The first line of the display shows date and time If not correct you can set the exact ones according to the procedure described at paragraph 5 1 2 On the top right corner of the display you can always see the battery indicator and if the external power supply is connected the corresponding symbol VOLTAGE VOLTAGE VI 230 2 V v1 230 2 V v2 230 5 V v2 230 5 V V3 230 6 V V3 230 6 V v12 384 2 V V12 384 2 V V23 385 4 V V23 385 4 V v31 383 7 V v31 383 7 V freq 50 0 Hz freq 50 0 Hz Phseq 123 Phseqg 123 HARM WAVE HARM WAVE These symbols will be omitted in the following illustrations 4 4 BACKLIGHT FEATURE When instrument is turned on pressing briefly the ON button the backlight will be enabled The light will be automatically turned off after 5 seconds If the batteries are too low the instrument will disable automatically the backlight function Using repeatedly the backlight funct
61. s are enabled amp F3 F4 amp ESC e SAVE ENTER HOLD amp MENU amp START STOP to move the cursor of the selected harmonic leftwards and rightwards respectively At the same time the values relevant to the order no of the selected harmonic and to the corresponding absolute and relative values calculated on the basis of the fundamental are updated only for three phase mode to display the values of the harmonics of the other voltages available The voltage displayed is indicated above the F3 key to display the page of the harmonics h01 h24 h24 symbol or that of the harmonics h25 h49 h49 symbol to return back to METER mode see paragraph 6 2 2 to store in the instrument memory a record of Smp type see paragraph 5 4 and the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement to enter in tte MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible to enter the configuration MENU during a recording or an energy measurement to record selec
62. sccessecscssecsecsees 50 16 1 Voltage Anomalies Voltage Sag and Gurgel 50 16 2 Voltage and current HarMonies recisi 50 162 1 oo 50 16 2 2 Limit values for NANMonies eegene ege 51 16 2 3 Presence of harmonics causes cata eel tei ess 52 16 2 4 Presence of harmonics CONSEQUENCES ccccceeeeeceeeeeeeeeeeeeeeeeeeneeeeeeseeeneeneeeeneeees 52 16 3 Power and power factor definitions ceceno 53 16 3 1 Conventions on powers and power Toactors nnet 54 16 3 2 3 PHASE 3 Wire SY StS is inscasncsesedenentenreetuca neni ea 55 16 4 Measuring Kante Katie 56 164 1 Integration e 1a Rae 56 16 4 2 Powerfaciorealculalions clean 56 17 DETRESSE 57 17 1 Waray eiir ae aee A 57 17 2 RR lel tae nea EEA 57 EN 2 Hor VEGA 76 1 PRECAUTIONS AND SAFETY MEASUREMENTS 1 1 GENERAL This instrument has been designed in compliance with IEC EN61010 1 directive For your own safety and to avoid damaging the instrument we suggest you follow the procedures hereby prescribed and to read carefully all the notes preceded by the symbol A Before and during measurements please be very diligent in following instructions below e Do not measure voltage or current in wet or dusty places Do not measure in presence of gas explosive materials or combustibles Do not touch the circuit under test if no measurement is being taken Do not touch exposed metal parts unused terminals circuits and so on Do not use the instrument if it se
63. selected Position the cursor on the corresponding word by pressing the keys F1 and F2 and set the desired value by pressing the keys F3 and F4 5 2 2 How to set the fundamental frequency Position the cursor on the corresponding word by pressing the keys F1 and F2 and select the network frequency between the possible values 50Hz and 60Hz by pressing the keys F3 and F4 This parameter is important ONLY if the input voltage is not sufficient to recognize the value of the frequency for example only the clamps for the current measurement are connected In this case the instrument generates an internal synchronism equal to the value of the set frequency 5 2 3 How to set the current range The value of this parameter must be always equal to the full scale of the current clamps used to take the measurement In case multi scale clamps are used the value of this parameter must be equal to the scale selected on the clamps Set the desired value by pressing the keys F3 and FA EN 10 Hor VEGA 76 5 2 4 How to set the Clamp Type The value of this parameter must be always equal to the clamp type you are using Two types of clamps are available v STD for Standard clamps or Current Transformer v FlexINT for Flexible clamps without any electronic control box v FlexEXT for Flexible clamps with their own electronic control box v Flex33d for Flexible clamps without any electronic control box marked with HTFLEX33d code see herewith
64. sequence within 10 seconds F1 F4 F3 F2 In order to enable disable this option see paragraph 5 2 If a wrong password is inserted the instrument will display an error message and will repeat the request If no key is pressed after about 10 seconds the instrument returns back to the original screen EN 39 Dor VEGA 76 10 CONNECT THE INSTRUMENT TO A PC In order to connect the instrument to a PC you must connect the serial cable shipped with the instrument to the serial output The original serial cable has the following inner connections Male connector 9 pins on the instrument side Female connector 9 pins on the PC side ow Ph OD od P The available transmission speeds are the following 9600 19200 57600 default value The value of the transmission speed Baud Rate is displayed on the initial screen immediately after turning on the instrument See paragraph 2 3 The value of this parameter can be modified only with the management software For download instructions please refer to Topview software help on line AN The selected COM port should not be interested by other devices or process eg mouse modem etc In order to transfer the memorized data from the instrument to the PC the following procedure after Software Installation must be followed 1 Switch ON the instrument and wait that Initial screen disappears 2 Connect the serial output of the inst
65. strument will record Voltage Anomalies voltage Sag and Surge see paragraph 16 1 OFF the instrument will not record any voltage Sag and Surge V1 V2 V3 V12 V23 or V32 V31 RMS value of the voltage of phase 1 phase 2 phase 3 respectively values of the phase to phase voltages 1 2 2 3 or 3 2 and 3 1 Single phase V1 3 wires Vi2 V32 V31 4 wires V4 Vo V3 THD DC 01 49 Voltage Total Harmonic Distortion Harmonics respectively DC Component 01 49 THD 01 03 05 07 Vref only if ANOM REC flag has been set ON RMS reference value for Voltage used in Voltage Anomalies detection Voltage Sag and Surge The Reference is a Voltage Phase to Neutral for Single Phase and 4 wires three phase system b Voltage Phase to Phase for 3 wires three phase system Single phase 230V 3 wires 400V 4 wires 230V LIM LIM only if ANOM REC flag has been set ON High and Low Voltage Percent threshold used in Voltage Anomalies detection Voltage Sag and Surge Example Three Phase System 4 wires Vref 120 LIM 6 LIM 10 gt High Lim 127 2V Low Lim 108 0V The Instrument will detect a voltage Anomalies if the RMS Voltage Values calculated every 10ms beyond the above calculated thresholds see paragraph 16 1 Single phase 120V 3 wires 480V 4 wires 277V RMS value of the current of phase 1 phase 2 phase 3 and of the 11 12 13
66. t 16 2 VOLTAGE AND CURRENT HARMONICS 16 2 1 Theory Any periodical non sine wave can be represented as a sum of sinusoidal waves having each a frequency that corresponds to an entire multiple of the fundamental according to the relation v t V V sin t p 1 k l where Vo Average value of v t V Amplitude of the fundamental of v t Vk Amplitude of the KI harmonic of v t In the mains voltage the fundamental has a frequency of 50 Hz the second harmonic has a frequency of 100 Hz the third harmonic has a frequency of 150 Hz and so on Harmonic distortion is a constant problem and should not be confused with short events such as sags surges or fluctuations EN 50 Hor VEGA 76 LEGENDA 1 Fundamental 2 Third Harmonic 3 Distorted Waveform Effect of the sum of 2 multiple frequencies It can be noted that in 1 the index of the sigma is from 1 to the infinite What happens in reality is that a signal does not have an unlimited number of harmonics a number always exists after which the harmonics value is negligible The EN 50160 standard recommends to stop the index in the expression 1 in correspondence of the 40 harmonic A fundamental element to detect the presence of harmonics is THD defined as This index takes all the harmonics into account The higher it is the more distorted the waveform gets 16 2 2 Limit values for harmonics EN 50160 fixes the limits for the harm
67. t for minutes military time Press the ENTER key to SAVE the change or press ESC to quit the modification This setting will remain unchanged also after turning off the instrument 5 1 3 Howto set the language By pressing the multifunction keys F1 and F2 position the cursor on the LANGUAGE EN or LINGUA IT item and confirm it by pressing the ENTER key By pressing the multifunction keys F1 and F2 position the cursor on the desired language and press the ENTER key to SAVE the change or press ESC to quit the modification This setting will remain unchanged after turning off the instrument EN 9 Dor VEGA 76 5 2 BASIC SETTING ANALYZER CONFIG Selecting the ANALYZER CONFIG item and pressing the ENTER Key the following page will be displayed ANALYZER CONFIG SYSTEM B3PH4W FREQUENCY 50HZ CURRENT RANGE 1000A CLAMP TYPE STD TV RATIO 0001 PASSWORD ON 4 T This page of setting can be confirmed by pressing the ENTER key or cancelled by pressing the ESC key 5 2 1 How to set the type of electrical system under test This parameter permits you to select the type of electrical system under test among the following configurations v SINGLE single phase system v 3PH3W 3 wires system three phase system without neutral see paragraph 16 3 2 v 3PH4W 4 wires system three phase system with neutral The connections to the instrument inputs will have to be in keeping with the type of system
68. t harmonic of n phase EN 53 Hor VEGA 76 Note It is to be noted that the expression of the phase Reactive Power with non sine waveforms would be wrong To understand this it may be useful to consider that both the presence of harmonics and the presence of reactive power produce among other effects an increase of line power losses due to the increased current RMS value With the above given relation the increasing of power losses due to harmonics is added to that introduced by the presence of reactive power In effect even if the two phenomena contribute together to the increase of power losses in line it is not true in general that these causes of the power losses are in phase between each other and therefore that can be added one to the other mathematically The above given relation is justified by the relative simplicity of calculation of the same and by the relative discrepancy between the value obtained using this relation and the true value It is to be noted moreover how in case of an electric installation with harmonics another parameter called depurated Power Factor dPF is defined In practice this parameter represents the theoretical limit value that can be reached for Power Factor if all the harmonics could be eliminated from the electric installation 16 3 1 Conventions on powers and power factors As for the recognition of the type of reactive power of the type of power factor and of the direction of the ac
69. tages on the red and blue wires 020 null voltages on the black and blue wires 003 null voltages on the black and red wires Tab 1 Symbols used in the position VOLTAGE EN 22 Hor VEGA 76 6 1 2 METER mode On rotating the switch to this position the instrument selects automatically the METER mode corresponding to one of the below screens according to the settings made as per paragraph 5 2 27 09 00 L723 512 27 09 00 17 39 12 27 09 00 1735412 SINGLE PHASE VOLTAGE VOLTAGE VOLTAGE V12 384 2 V VI 230 2 V v1 230 2 V V32 385 4 V v2 230 5 V Vpkl 325 5 V v31 383 7 V v3 230 6 V Thdv 0 0 freq 50 0 Hz v12 384 2 V freq 50 0 Hz V23 385 4 V v31 383 7 V freq 50 0 Hz Phseq 123 HARM WAVE HARM WAVE HARM WAVE Example of screen in single Example of screen in 3 wires Example of screen in 4 wires phase mode three phase mode three phase mode The symbols used are described in Tab 1 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are enabled e F1 to pass to HARMONIC mode see paragraph 6 1 3 e F2 to pass to WAVE mode see paragraph 6 1 4 amp SAVE to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording
70. ted parameters according to the instrument s settings see chapter 7 EN 28 Hor VEGA 76 6 2 4 WAVE mode Selecting the WAVE mode one of the below screens will be displayed according to the settings made as per paragraph 5 2 The screens show the waveform of the phase currents 27 09 00 1735512 27 09 00 1735412 Example of screen in single Example of screen in 3 wires phase mode or 4 wires three phase mode The symbols used are described in Tab 2 For eventual messages displayed see appendix 1 MESSAGES DISPLAYED Following keys are enabled e F1 only for three phase mode to display the values relevant to the following phase 7 ESC to return back to METER mode see paragraph 6 2 2 amp SAVE to save in the instrument memory a record of Smp type see paragraph 5 4 containing the instantaneous values of voltage and current present on the instrument inputs This function is disabled during a recording ENTER HOLD to enable disable the HOLD function updating interruption of the displayed data All the previous functions remain however available When the HOLD function is enabled the word is displayed When this function is enabled it s not possible to record or take an energy measurement This function is disabled during a recording or an energy measurement 4 e MENU to enter in the MENU mode and change the instrument settings see paragraph 5 2 and 5 3 It s not possible
71. tive power the below conventions must be applied The stated angles are those of phase displacement of the current compared to the voltage for example in the first panel the current is in advance from 0 to 90 compared to the voltage Equipment under test Inductive Generator lt gt Equipment under test Capacitive Load 90 P 0 P P P P P 0 Pfc 1 Pfc 1 Pfc Pf Pfc 1 Pfi 1 Pfi Pf Pfit 1 Pfi 1 Qc 0 Qc 0 Qc Q Qc 0 Qi 0 Qi Q Q 0 Qi 0 180 0 P 0 P P P P P 0 Pfc 1 Pfc Pf Pfc 1 Pfc 1 Pfi 1 Pfi 1 Pfit Pf Pfi 1 Qc 0 Qc Q Qc Qc 0 Qi 0 Qi 0 Q Q Qi 0 270 Equipment under test Capacitive Generator gt Equipment under test Inductive Load EN 54 Dor VEGA 76 where Symbol Significance Remarks Positive parameter usan P Value of the active power Negative parameter generator Qi Valueoftheinductive reactive power The active power positive or negative is defined in the panel and therefore acquires the value of the active power in that moment e The reactive power inductive or capacitive positive or negative is defined in the panel and therefore acquires the value of the reactive power in that moment The power factor inductive or capacitive positive or negative is defined in the panel and therefore acquires the value of the power factor in that moment E
72. to enter the configuration MENU during a recording or an energy measurement START STOP to record selected parameters according to the instrument s settings see chapter 7 EN 29 VEGA 76 6 3 POWER POSITION This function permits you to display in real time the RMS value of AC DC voltage the peak and ThdV value of the 3 phase voltages the waveform of the 3 phase voltages the RMS value of AC DC currents the peak and Thdl of the 3 phase currents the waveform of the 3 phase currents Furthermore the instrument calculates and displays the value of the phase and total active powers the value of the phase and total reactive and capacitive powers the value of the phase and total power factors and coso 6 3 1 Symbols The position POWER has two working modes v METER v WAVE For voltage and current harmonics see paragraphs 6 1 3 and 6 2 3 respectively These modes will be described in detail in the next paragraphs The symbols used are described below Symbol Description V1 V2 V3 RMS value of the voltage of phase 1 phase 2 phase 3 respectively V12 V23 V32 V31 RMS Value of the phase to phase voltages freq Network frequency Phseq Phase sequence indicator 123 correct 132 inverted 023 null voltage on the black wire 103 null voltage on the red wire 120 null voltage on the blue wire 100 null voltages on the red and blue wires
73. to make sure that no damage has occurred in transit Should you find irregularities please contact the carrier immediately Furthermore please make sure that the parcel contains all the accessories and parts listed at paragraph 13 3 In case of discrepancies please contact your dealer Should it be necessary to return the instrument to the supplier please keep to the instructions given at paragraph 17 3 2 INSTRUMENT POWER SUPPLY The instrument can be powered by v 6 batteries 1 5V AA LR6 series located in the compartment on the back of the instrument v an external power supply coded A0050 supplied with the instrument CAUTION AN For recordings use ALWAYS the external power supply even the instrument allows the operator to perform a recording using internal batteries The instrument uses sophisticated algorithms to prolong the battery life Particularly v The instrument switches OFF the backlight Automatically after 5 seconds v If the instrument is displaying in real time and the external power supply is not connected after about 5 minutes from the last key pressure or switch rotation the instrument turns off automatically AUTOPOWER OFF procedure v Ifthe instrument is recording or is measuring energy and the external power supply is not connected after about 5 minutes from the last key pressure or switch rotation the instrument starts a special procedure to save the batteries ECONOMY MODE the instrument keeps recording
74. trument set to 50Hz Range Resolution Accuracy 47 53 0 1Hz 0 2 1 digit Instrument set to 60Hz Range Resolution Accuracy 57 63 6 0 1Hz 0 2 1 digit 13 1 1 Compliance VEGA 76 complies with the standards prescribed for e class 2 EN61036 static counters of active energy e class 3 IEC1268 static counters of reactive energy 13 1 2 Temperature drift Temperature drift 0 1 x accuracy K EN 46 VEGA 76 13 1 3 Safety The instrument complies to the standards Insulation Pollution Overvoltage category 13 1 4 General Characteristics Mechanical features Dimensions Weight Internal power supply Battery Life External power supply Display resolution dot size visible area Sampling speed No of samples per period Opening clamp Maximum diameter of the cable 13 2 ENVIRONMENT 13 2 1 Operating conditions Reference temperature Operating temperature Relative humidity Storage temperature Storage humidity IEC EN61010 1 A2 1996 Class 2 2 CAT III 300V CAT Il 350V Phase Earth CAT III 600V Phase Phase 225 L x 165 La x 105 H 1 5kg 6 batteries 1 5V series AA LR6 50hours Use only HT Italia power supplier code A0050 dot matrix with backlight 128 x 128 dots 16384 dots 0 5mm x 0 5mm 73mm x 73mm 156 25usec a 50Hz 128 53 mm 50 mm 73 F 2 23 C 1 C 32 F to 122 F 0 C to 50 C lt 70 14 F to 140 F 10 C to 60 C lt 80
75. ver the sum does not eliminate all current harmonics The odd multiples of the third harmonic called TRIPLENS are added together in the neutral and can cause overheating even with balanced loads 16 2 4 Presence of harmonics consequences In general even harmonics i e the 2 4 etc do not cause problems Triple harmonics odd multiples of three are added on the neutral instead of cancelling each other thus creating a condition of overheating of the wire which is extremely dangerous Designers should take into consideration the three issues given below when designing a power distribution system that will contain harmonic current e The neutral wire must be of sufficient gauge e The distribution transformer must have an additional cooling system to continue operating at its rated capacity when not suited to the harmonics This is necessary because the harmonic current in the neutral wire of the secondary circuit circulates in the delta connected primary circuit This circulating harmonic current heats up the transformer e Phase harmonic currents are reflected on the primary circuit and continue back to the power source This can cause distortion of the voltage wave so that any power factor correction capacitors on the line can be easily overloaded The 5 and the 11 harmonic contrast the current flow through the motors making its operation harder and shortening their average life In general the higher the ordinal harmoni
76. wing atmospheric conditions temperature 73 F 2 F 23 C 1 C with relative humidity lt 75 Voltage measurement Autoranging Range Accuracy Resolution Input impedance 15 310V NE 0 2V 300kQ phase neutral 310 600V 2052048 0 4V 600k phase phase Voltage Anomalies Detection Manual Selection of Range Voltage Range Accuracy Resolution Input impedance 15 310V Jada 0 2V 300kQ phase neutral 30 600V arora 0 4V 600kQ phase phase Time Accuracy ref to 50Hz Resolution 10ms period of fundamental 10ms period of fundamental Current measurement Using external transducer STD and FlexEXT i Protection against Range Accuracy Resolution Input impedance avaroadi 0 005 0 26V 0 0001V 0 5 2digit 100kQ 5V 0 26 1V 0 0004V Minimal Current measurable is equal to 0 5 of Clamp Full Scale Current measurement Using transducer FlexINT or Flex33d Range 1000A Range Input voltage Resolution Accuracy 5 00 20 00A 425uV 1 7mV 0 850uV 4 0 rdg 8 5uV 20 00 99 99A 1 7mV 8 499mV 0 850uV 1 0 rdg 8 5uV 100 0 999 9A 8 5mV 84 99mV H hu 1 0 rdg 85uV Minimal Current measurable is equal to 0 5 of Clamp Full Scale Input impedance 9 166kQ Current measurement Using transducer FlexINT or Flex33d Range 3000A Range Input voltage Resolution Accuracy

VEGA 76 - HellermannTyton

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