9848 AC Voltage & Current Power Calibrator User`s Manual
Contents
1. l U3 current from range 0 0 90 0 hase angle between output current and oltage from range 0 0 90 0 is or with values setting 0 0 10 0 in a relation to phase angle Fig 7 2 Three phase vector of 9848 calibrators Connection of three phase power meter to calibrator 9848 is shown in Fig 7 3 Low potential voltage LO of all three calibrators are connected by wire This re quirement refers to all of checking systems system three and four wire or Arona s system Page 12 Meter Under Test TT ce Calibrator 9848 phase L3 Calibrator 9848 phase L2 Calibrator 9848 phase L1 output curren Fig 7 3 Connection of three phase power meter to 9846 calibrator 7 Equipment A complete 9848 calibrator set consists of Calibrator is basic configuration with power cable ceceeeeeeee eee 1 piece Calibrator in configuration Phase L2 with power cable 1 piece Calibrator in configuration Phase L3 with power cable 1 piece BUS WING ss EA RS DNA OA algae namudl ys ath ete 1 piece POSE We BAI ZS AEE EPE E EEE ET E A 3 pieces Users Manual anseia O SC AA 1 piece Page 13 8 Guarantee amp Service Facilities The unit is guaranteed for a period of one year from its delivery to the pur chaser We maintain a comprehensive after sales service and the instr2. 9848 AC Voltage amp Current Power Calibrator User s Manual p Aee a m g mm go a 2 meme i 205 Westwood Ave Long Branch NJ 07740 1 877 742 TEST 8378 Fax 732 222 7088 salesteam Tequipment NET Contents Checking Results Field of application Technical data Precautions Start up of the Calibrator Three phase calibrator set Equipment Guarantee amp Service Page 2 10 12 13 Page 3 1 Checking Results results of the calibrator Limits of intrinsic error Measurement results Intrinsic error in phase Table 1 1 The checking U I f Function A Hz I 2 L3 0 004 0 014 0 012 0 003 0 016 sur 0 028 Voltage 0 05 0 00 0 06 t030v 002 001 005 0 15 0 10 0 00006 0 00010 0 00010 0 0009 0 0007 0 0018 0 0000 0 0012 0 0030 0 018 0 004 0 014 Ns Current F room o Frequency Toonz oo Toonz oa ooon aea 5 ss 01 op a som oo 057 or or 00 sam ro sos o 400 00 _ 0 07 oo sos 01 or o anne 24040 23 C Portable Calibration Meter Calport 400 Serial No 67635 Ambient temperature C Reference Standard Page 4 2 Field of Application The 9848 is a three phase symmetrical and asymmetrical source of alternating current and voltage Enables generating alt
3. 80 non condensing Power supply voltage 230V 10 Power supply frequency 45 65Hz Power supply waveform Sine distortion factor B lt 0 05 Page 6 Table 3 3 General Requirements Safety Class according to EN61010 Electric insulating strength 50Hz power supply pins case voltage and current output terminals case voltage output terminals current output terminals 2kV control D sub connection case 500V IP20 according to IEC529 Group I according to IEC359 1 5kV 2kV 4 Precautions The 9848 should be used in an environment providing using conditions according to Table 3 2 which are normally found in laboratories and factories and where appara tus will be handled carefully The calibrator should not be used near salt water and aggressive gases or near strong magnetic and electric fields Neglected operating mechanical factors during operation are allowable according to IEC359 for instru ments group and optional operation position The Calibrator can be used in tem peratures 5 to 40 C stored and transported at temperatures 25 to 70 C The 9848 is Class 1 protection instrument according to EN61010 The metal case is connected to zero lead of power cable The Calibrator may be used in safe and dan gerous localisation i e in places whose operator can touch details conducting electri cal current connected to ground potential Calibrato
4. 8 can work in three phase set See Fig 7 1 It consists of one calibrator basic configuration Phase L1 and two calibrators in special configuration Phase L2 and Phase L3 Calibrator Phase L1 controls Phase L2 and Phase L3 by means of analogue and digital signal via connection at rear panel of calibrators Fig 7 1 View of Three Phase Calibrator 9848 front panels Page 11 The three phase calibrator set is able to generate a symmetrical and asymmetrical three phase vector represented on Fig 7 2 programmed from control calibrator Phase L1 and from calibrators Phase L2 and Phase L3 Shift angle between voltage signals L2 and L1 is programmed from range 110 130 and is indicated on dis play calibrator Phase L2 Shift angle between voltage signals L3 and L1 is pro grammed from range 230 250 and is indicated on display calibrator Phase L3 ee GE Ui Uva Urs SEE phase output voltages from range 0 5 420V o o ho ls phase output current from range 0 01 100 00A f a phase angle between output voltages is 120 or from range E 110 0 130 0 He E q phase angle between output voltages is 240 or from range l 230 0 250 0 phase angle between output voltage and
5. d off the lamps determines state of setting by the knob In both state the value of frequency is shown on display TIME ELECTRONICS POWER CALIBRATOR oul synch output voltage D MI E fine TA SA ZA 100A on E0 O range thd output current phase current distortion Fig 5 1 View of calibrator phase L1 front panel Page 8 Phase angle between current and voltage signals is set up by the round knob Pressing the pushbutton below the display causes change the range of phase When the lamp L light it determines the range from 0 to 90 and when the lamp C light it determines the range from 0 to 90 In both case the value and sign of phase are shown on display voltage Value of voltage signal is set up by two the round knob rough and fine Pressing the pushbutton below the display causes change the range of voltage The light lamp point at selected range 57V 110V 220V or 380V Setting value of voltage is shown on display current Value of current signals is set up by two the round knob rough and fine Pressing the pushbutton below the display causes change the range of current The light lamp point at selected range 1A 5A 20A or 100A Setting value of current is shown on display switching on off the 100A current range cause acoustic noise of 100A re lay distortion Distortion of current and voltage signa
6. ee standard 19 rack mount size aluminium case It consists of one calibrator basic configuration Phase L1 and two calibrators in special configuration Phase L2 and Phase L3 Calibrator Phase L1 controls Phase L2 and L3 by means of analogue and digital signals All connections are on the rear panels Calibrator Phase L1 is able to generate a single phase vector Page 5 3 Technical Data Table 3 1 Metrological parameters 0 50 60 00V 0 01V 250mA 60V T 110V 1 00 130 00V 0 01V 140mA 130V oltage 220V 2 0 250 0V 70mA 250V 380V 3 0 500 0V 40mA 420V IA 0 0100 1 3000A 0 0001A 12V I1 3A ES cr ESA 0 05 of set value 0 050 6 000A 0 001A nae 3V 6A 5 digits 0 05 of set value 3 digits Total Harmonic Distortion THD adjustable 1 15 0 5 of set value Current I 0 200 19 999A 0 001A 2V 20A 0 100A 1 00 100 00A oora ofsetvalue o7v soa 3 digits 0 3V 100A q Ra 0 0 10 0 in Beene Bo relation to phase Shift angle between mo Shift angle between 250 0 0 50 Frequency f a 45 00 70 00Hz 0 01Hz 0 02Hz a hie an le a for settings greater than 10 on voltage and current range Table 3 2 Reference conditions and rated operating conditions Parameter Rated operating conditions Ambient temperature 18 423 28 C 5 40 C Atmospheric pressure 70 106kPa Relative humidity 20
7. ernating voltages U up to 500V in four subranges 57 110 220 500V alternating currents I up to 100 00A in four subranges 1 5 20 100A frequency f in range 45 70Hz and phase angle j in range 90 0 90 The 9848 calibrator is used for adjusting checking and verification of measuring instruments used in power engineering These include active and reactive power meters phase meters frequency meters ammeters voltmeters transducers monitoring systems and frequency voltage and current relays in single and three phase symmetrical and asymmetrical configurations for symmetrical and asym metrical loads Voltage and current output signals are set by multi turn potentiometers and are si multaneously indicated on 4 5 digit LED displays Frequency and phase angles are also set by multi turn potentiometers and are displayed on 4 digit LED displays The shift angle between voltage signals are also set by multi turn potentiometers and are shown on the 4 digit LED displays too Instruments to be calibrated can safely be connected to the outputs without chang ing the set values since the calibrator can be switched to standby mode to isolate the output terminals Sinusoidal signals are generated on both voltage and current outputs If required between 1 and 15 harmonic distortion can be added to the signals Distortion spectrum complains rectangular wave with triple frequency added to main signal The 9848 is constructed in thr
8. ls are set up by mean of screw driver There are the pushbutton and the signal lamp of thd Pressing the pushbutton causes change of lamp state State switched on light lamps determines thd state in which output voltage and current signal is deform from 1 to 15 total harmonic distortion Distortion spectrum corresponds rectangular wave by triple frequency State switched off the lamps determines pure sinewave output signals On the rear plate are power supply socket 230V 10 50Hz 5 60Hz 5 power supply fuse T 1 6A 250V seal of calibrator socket DB25 used to three phase set Power supply voltage and frequency must be consistent with the details specified within the technical data Chapter 3 The calibrator has to be connected to the power supply voltage To avoid shock hazard or instrument damage connect the calibrator line power ground to the earth ground The connection need be made by factory supplied three conductor line power cord After that it has to be switched on press power switch Fig 5 1 After switching power the output current and voltage terminal are in standby state The set value of current voltage frequency and phase are shown the display Warming up of the power up calibrator should remain longer than 30 minutes After this time calibrator is ready and all parameters according to Table 3 1 are guaran teed Page 9 During exploitation calibrator will not demand regulation and calibratio
9. n Admissi ble values of setting signal described are in Table 3 1 and are definite for 12 months from last calibration In case using the calibrator after longer time than 12 months from last calibration one should take into account typical twice increase of errors in the next third years of exploitation and quadruple increase of errors in the next ninth years of exploitation Ways of load connection for example checked meter to the calibrator are presented in Fig 5 2 Calibrator Fig 5 2 Connection of wattmeter to calibrator terminals single phase connection with calibrator Phase L1 During applying load one should comply guidelines taken down in p 4 Overload current or voltage output is signalled with flashing lamps ovl after what follows automatic passage calibrator in to state standby State standby is signalled by flashing lamps std Overload voltage output can be caused with connecting loads with too small resistance Overload current output can be caused with con necting loads with too large resistance Overload both output can be also caused with connecting non linear loads The average rectified value of alternating signals is stabilized on the calibrator output but it is calibrated for sinusoidal signals RMS Accuracy of voltage current and phase angle are described in Table 3 1 They are true when the distortions are low and lamps thd is switched off Page 10 6 Three Phase Calibrator Set The 984
10. put termi nals of the calibrator State switched off the lamps determines state operate in which setting values of voltage signal appearing on output terminals of calibrator The lamp ovl signals overrange values of distortion coefficient or amplitude error of output volt age implicated by overload of calibrator output output Output current terminal high potential HI and low potential LO The output current E is electrically separated from other circuits of calibrator There are the push but current ton and the signal lamp of standby operate function next to the terminal Pressing the pushbutton causes change of lamp state State switched on flashing lamps deter mines standing state in which output current is disconnected from output terminals of calibrator State switched off the lamps determines state operate in which setting values of current signal appearing on output terminals of calibrator The lamp ovl signals overrange values of distortion coefficient or amplitude error of output current implicated by overload of calibrator output frequency The frequency of current and voltage signals is set up by the round knob There are the pushbutton and the signal lamp of synch function below the display Pressing the pushbutton causes change of lamp state State switched on light lamps determines synch state in which output voltage and current frequency is synchronized with fre quency of power supply State switche
11. r generate on the voltage terminals high and danger voltages Connection and disconnection of the load should be made when standby function has been set std lamp is on After switching of the load the Calibrator can be start up by repeat pressing of the key std in operate status std lamp is switched off Switching of the load without using of standby status is dangerous for high voltage ranges electric shock danger for current ranges disadvantageous for transient Do not open the case and adjust or exchange details during exploitation When the Calibrator is damaged it should be disconnected from power supply and measure ment circuit Manufacturer provides warranty service and after warranty service When the fuse beside of power supply socket is overheated then it should be ex changed on the fuse type T 1 6A Attention If the casing has been tampered with then the warranty will be null and void Page 7 5 Start Up of the Calibrator Front plate view of calibrator Phase L1 is shown on Fig 5 1 where are marked supply switch 230V nominal voltage 45 65Hz output Output voltage terminal high potential HI and low potential LO There are the push button and the signal lamp of standby operate function next to the terminal Pressing voltage the push button causes change of lamp state State switched on flashing lamps de termines standing state in which output voltage is disconnected from out
12. ument can if necessary be returned to us or our authorised dealer for servicing The type and serial number of the instrument should always be quoted in all corre spondence together with the details of any fault found and the service re quired Equipment returned to us for servicing must be adequately packed preferably in the box supplied and shipped with transportation charges prepaid WE CAN NOT ACCEPT RESPONSIBILITY FOR ANY INSTRUMENT ARRIV ING DAMAGED Should the cause of failure during the guarantee period be due to misuse or abuse of the instrument or if the guarantee period has expired the repair will be put in hand without delay and charged unless other instructions are re ceived 205 Westwood Ave Long Branch NJ 07740 1 877 742 TEST 8378 nent Fax 732 222 7088 salesteam Tequipment NET Time Electronics Limited Botany Industrial Estate Tonbridge Kent TN9 1RH
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