POWER FACTOR REGULATOR Instruction Manual
Contents
1. _ Measurement Verification gt Screens O m O Type C1 Long Press P amp P RUN Long Press Type C5 Long Press P amp P k xecution P amp P Ending v y Next Screen Md A gt Screens A Type C4 Long Press Autotest SETUP Autotest Execution a 9 AUTOTEST Ending Change of capacitor to Measurement Verification 4 gt visualize C Screens O O Screen RUN Long Press Type C5 Long Press 99 M98235701 03 12A Computer Smart 6 Computer Smart 12 5 5 ERROR Messages errors and alarms In the Normal mode the screen will show a code with the type of error or alarm detected when the unit detects an error or alarm The errors and alarms that can be detected and the messages displayed on the screen are summarised in the following table Table 5 5 Errors and messages displayed on the screen ERROR message Description No current Due to a load current that is lower than the minimum or because the current transformer CT is not connected Appears when the current on the transformer s secondary is lower than 50 mA The unit disconnects the capacitors automatically Over compensation The unit measures capacitive power but all stages are disconnected This can be due to the incorrect adjustment of the C K parameter Under compensation The unit measures induc2. Fig 1 1 Rear label of the unit 1 2 Definitions The following definitions might be useful to understand some of the sections in this manual 1 2 1 4 Quadrant Regulator The regulator is capable of performing the measurement and regulation functions when the active power is transferred from the grid to the loads common case in a consumer installation or when the load is transferred to the grid this is the case of installations with generators that not only allow the consumption of energy but can also export and sell energy 1 2 2 FCP System FAST Computerized Program This system controls the connection sequence of the different stages tending to minimise the number of operations and matching the usage times of the different stages to achieve the determined final power demand The operations are carried out in such a way that in the case of stages with an identical power the stage that has been disconnected the longest is connected when there is demand and the stage that has been connected the longest is disconnected in the case of a surplus ay ge M98235701 03 12A Computer Smart 6 Computer Smart 12 1 23 Stages and Steps We must explain the difference between stages and steps In this manual a STAGE is described as the Capacitor banks in which the power factor compensation unit is divided which may have different power ratings usually in 1 1 1 2 1 2 4 etc ratios A step is each one of the total
3. o No K o wo O o P fore o on o o M NO o oo M Sojojojo o ol Nioo AININ o Oo Olo NO gt 00 PRO o Olo RO RO oo co Se eje NO GO Go lojo Oo Olo DO K NI Oo On Oo Olo CO KX G Co K gt N dl RO Oo OOo Oo NO NO PAININ O oll eel ejejel NDO CO RO N oO Oo OOo MDD O CO G O CO o ala MN ol O dl O O M O O D O CO O N NS s NS CO O oo O O iN oo O dl KR O dl M ojojo o ali N RO amp Oo O a laos 0 0O o o o o O1 N SI Oo O al NIO o o O N RO Oo Ol o o a ODB oOo ofejejal NO RO amp Co amp 99 M98235701 03 12A Computer Smart 6 Computer Smart 12 When the 440 V capacitor power reference is used for a 400 V grid voltage the following table is used ae Power in kvar of the smallest stage in kvar at 440 V plis 1505 2005 25015 3005 405 500 5 6005 8005 1000 5 1500 5 2000 5 2500 5 3000 5 _ 4000 5 N ul ok E oo a NE O Bs o E o E o JE nu ES oK o JE jk RES of y o gt NE DO O1 So A o O SOS s A NIN alol N N o O SOS SOS Dubno B UO VIE o O SOS SOS sa Ro Ro Go RB DBlolo Ne o O SOS DND Oo Bol
4. POWER FACTOR REGULATOR Computer Smart 6 Computer Smart 12 mi CIRCUTOR computer AMANE Instruction Manual M98235701 03 12A CE M98235701 03 12A Computer Smart 6 Computer Smart 12 M98235701 03 12A Computer Smart 6 Computer Smart 12 Table of Contents 1 INTRODUCTION AND SAFETY TTRS ou a 3 1 1 CHECKS TO BE CARRIED OUT WHEN THE REGULATOR IS RECEIVED cccccccnncoononcnnnnnnnnnnnannnnnnnnnnnnnnnncnnnnnnnnnnanncnnnos 3 12 DEFINITION A A a 4 BZ A Oudaan EUO aE A a oa 4 122 lt P CP System VAST COMPUTO A ad 4 E AOS A ios 5 V O EMO ATA S Eee Ne O S eR eee ne E Tree 5 V BR A A io 5 12 0 CONNECTION ANA Reconnection TN id 6 V 02 ANO os 6 2 INSTALLATION AND STAR IUP sociccsheaseccesccacasssaasctesaceasaccasaterscesascencsacsunsesetacontavstant ses ob da ob V ao auta nadn 7 2 1 TECHNICAL FEATURES ooo a ed obor 7 22 EQUIPMENT INSTALLATION s da kita arash en E io 8 22 gt Mechameal Installa ON aeren anen editada 8 Dili COO ONS arearen A E dd 223 Gablesechons and protection elemens morir reana A l DBV db BK oo o eee a o on 9 224 Connection diasrams Computer Ml 9 3 GENERAT PEA TURES sia E EEE E N EEEE ES 11 4 FRONT PANEL SCREEN AND KEYBOARD 12 4 1 BCD SCREEN dia callos 13 4 2 NAVIGATION IE YS cta oia 13 5 REGULATOR SOPERATION icpin a a a cestacses zdola duc aE noho zas aiai 14 5 1 ST AR PS RI IN O OO E a nS ooo ea nee 14 92 DEVICE STATE S weet ale Acetic ou ooo bo ooo Z Lobo tia 14 5 3 MEASUREMENT OCR
5. Currents and Temperatures Screen PM5 TypeM1 C1 C2 lina LI LAS S 3 OO p The following data is displayed gt Current in A gt Leakage current in mA gt Temperature in C Comments about temperature measurements the unit uses an internal sensor to display the approximate external temperature of the equipment internal cabinet temperature which will be reached when the current conditions remain stable number of stages connected ventilation forced or not external cabinet temperature load consumption etc If these parameters are not stable the error in the temperature reading can increase significantly Cos Ill and PF Screen PM6 TypeM1 The following data is displayed gt Three phase cosine and its type inductive or TFcapacitive gt Power factor PF THDs Screen PM7 TypeM2 C1 C2 gt THD Voltage Harmonics Screens PM8 and PM9 TypeM2 There are two screens The first screen shows harmonics 3 5 and 7 C7 C8 C9 and the second screen shows harmonics 9 11 and 13 The following i data is displayed m gt 3rd or 9th voltage harmonic in Z y gt 5th or 11th voltage harmonic in V m S HARM gt 7th or 13th voltage harmonic in i g O N I a o 7 CI X L Ma zal y gt The following data is displayed gt THD harmonic distortion of the voltage in gt THD
6. Protection degree Admissible Temperature 20 60 C Relative humidity max 95 without condensation environmental conditions Max altitude 2000 m Control system FCP a program that minimises the number of operations Communications Interface RS485 Protocol MODBUS Speed 9600 19200 38400 The Smart computer Lagging Inductive 90 Lagging Inductive regulator measures and iaa operates in 4 quadrants Cosp according to the attached si diagram KW kVAr Cosp Leading Capacitive 90 Leading Capacitive Exported Power Imported Power M98235701 03 12A Computer Smart 6 Computer Smart 12 2 2 Equipment Installation 2 2 1 Mechanical Installation In mechanical terms the equipment is installed in a cabinet s front panel or in a panel The panel fixing drill must be drilled in compliance with DIN 43 700 dimensions 138 1x138 1 mm 2 2 2 Connections The following points must be checked before the unit is powered The installation and maintenance of the equipment must be performed by qualified and authorised staff in accordance with the national and international Standards All connections must remain inside the electrical panel Take into account that when the device is connected the terminals may be hazardous to the touch and opening the covers or removing elements may expose these parts Do not use the device until it is fully installed This regulator has a ser
7. od ol lt 1 UL m E The following data is displayed gt Three phase cosine and its type inductive or dr Capacitive gt Three phase phase phase voltage gt Current The EXPORT word under the icon that shows the type of cosine indicates that the power measured is exported When the installation is consuming importing power the PHASE parameter must be reconfigured in the setup menu Three Phase Power Screen PM2 TypeM1 The following data is displayed gt Three phase active power in kW gt Three phase reactive power and its type inductive or IF Capacitive in kvar gt Apparent power in kVA Phase neutral voltage screen PM3 TypeM1 O h O N LA lt M E L N C1 C2 C3 C4 ikw mn Ll a d L KVAT JZ The following data is displayed gt L1 Phase neutral voltage with respect to the neutral in V gt L2 Phase neutral voltage with respect to the neutral in V gt L3 Phase neutral voltage with respect to the neutral in V gt Frequency in Hz Phase Phase Voltage Screen PM4 TypeM1 The following data is displayed VV VV Frequency in Hz Phase phase voltage of L1 L2 in V Phase phase voltage of L2 L3 in V i Phase phase voltage of L3 L1 in V C1 C2 C3 C4 C5 C6 C7 C8 PA lt LM L N 15 M98235701 03 12A Computer Smart 6 Computer Smart 12
8. 62 and 0 99 inductive m i Unstable measurement Changes in load during the process m E Error in the measurement of the largest capacitor m i No capacitors found POS L Incorrect measurement of the number of capacitors on E L Incorrect measurement of the ratio of the first capacitor m u l Lit Possible error in the program calculated mo POB C K out of range Example of a Plug amp Play error screen mcos JE In this case the Plug amp Play function will calculate the Phase not displayed on the Wo l l ENS x screen and 5 stages or steps the PO6 error will occur when calculating the Program onc so that it will be displayed in its place since the C K parameter can not be calculated s displaying the following The first line will always show the current cosine to check the need to change to a different screen when the parameters that have been calculated are correct In the case of the POO error i e when capacitors have been deactivated by a leakage current alarm or forced in the On Off Auto Configuration the P amp P function will not be started until the problem is resolved The Plug amp Play function will assist during the installation of the power factor compensation system or when there are changes in the system new regulator new cabling new stage etc To do so the potential problems in faulty capacitors must be resolved before the P amp P function is activated by means of carr
9. C8 C9 C10 C11 C12 AI Cos it fi Ikw om 98 Ju IPF EXPORT C K n Connec PROG IVA stEes iZi mA HARM COMM VILIKVAr COS Pu Hz N EMD Fig 4 3 Keyboard m C on off Auto DISPLAY 0 A iit VO ZZ ILL pu Ju U i i j i AUTO 1 TEST 1 Fig 4 2 LCD screen for the device M98235701 03 12A Computer Smart 6 Computer Smart 12 4 1 LCD Screen The regulator s screen is of the LCD type and is composed of the following Fig 4 4 15 digits with 7 segments arranged on 4 lines with which the equipment provides information about the variables measured or the configuration variables in alohanumerical form lcons associated to the capacitors of the capacitor bank with which the equipment shows its connection or disconnection state Icons for units or general information displayed on the screen Icons for the setup screens which open this screen C1 C2 C3 C4 C5 C6 Capacitor icons C7 C8 C9 C10 C11 C12 L M b Unit icons Setup screen icons Digits Fig 4 4 Information displayed on the LCD screen 4 2 Navigation keys The navigation keys have different functions depending on the regulator s status and the screens displayed The said functions are described later on with the description of the type of screen Section 5 13 M98235701 03 12A Computer Smart 6 Computer Smart 12 5 REGULATOR S OPERATION 5 1 Start up Screen A start up screen will be displayed when th
10. Factor In the case of values that have not been included in the table the C K factor can be calculated as follows The reactive power of the smallest capacitor Q and the grid voltage U must be known The current of this I E capacitor will be then calculated as ABY The transformation ratio of the current transformer must also be known This is the K factor A lees where orim is the nominal current of the transformer s primary for example it would be 250A in a 250 5 Isec is the transformer s secondary current Usually 5 A C K lt _2 _ Therefore the C K factor will be K BKV For example In a 400V unit the smallest capacitor is 60 kVAr with a current transformer with a 500 5 ratio The calculation is as follows K factor K 500 5 100 Current of the smallest capacitor 60 1000 _ 86 64 V3 400 C K value a O 2 866 K 100 When the 60kvar power is referenced to 440 V it must be multiplied by Ugrid 2 440 2 so that the previous example would be 60 10007400 _ 7 64 C K 0 72 344012 5085 M98235701 03 12A Computer Smart 6 Computer Smart 12 Program Setup Screen PC6 TypeC2 The capacitor banks are composed of stages with different power ratings The base power value 1 will be that of the stage with the lowest power The powers of all other stages will depend on the power of the first stage Therefore the following programs would be available PROG Program 1 1 1 All stages have t
11. measurement of many different system parameters Measurement of the leakage current with an associated alarm disconnection of capacitors and search and deactivation of the faulty capacitor Simple configuration with only 5 keys with a Plug amp Play function and no need to disconnect the power supply Many different programs from 1 1 1 1 to 1 9 9 9 This can divide the total power in up to 46 steps in Smart 6 and up to 100 steps in Smart 12 FCP system that minimises the number of capacitor connections and disconnections RS 485 Communications Modbus protocol to supervise and display the different regulator parameters The SCADA Power Studio software can be used to display and configure the said parameters 4 Quadrant measurement and compensation Lagging Inductive 90 Lagging Inductive KW KW kVAr kVAr 180 0 KW KW KVAr kVAr Cos Cos Leading Capacitive 90 Leading Capacitive Exported Power Imported Power Fig 3 1 Signs in 4 quadrant measurements a a ee M98235701 03 12A Computer Smart 6 Computer Smart 12 4 FRONT PANEL SCREEN AND KEYBOARD The regulator s front panel shows the following signs computer AMAL Fig 4 1 Front panel of the device NOTE The setup process different parameters and regulation modes are described in detail in the Regulator Operation section Section 5 LCD Screen Navigation keys Ci C2 C3 C4 C5 C6 C7
12. oo M3 VO OR o SS S SS OD oo B UO c ol K O1 Alo S O SOS Slo DO oo XN on Oo c U OZ R03 Sojojojojo oo elal Wi Oo c O amp c B pol ojo N gt oo a oo o ojojo S oo gt NN gt o O SOS o o 3 h oo o DB o o olololo olol Oo SKS z S o o RO ou Ro Seal DK U o o Ro amp CO olo _ IODO o o ali AJN olojojo ul PIAI tn 66 Oo O O dl O O M O O CO O O O D O M N O O NS M O O Rh O SN O on O G1 KR ClO OIO OT CO O re OIO _ 1O SOS D3 AIN OIO N OO MN S SS olz N ole olg XK ojo o lol o o o Clo Oo MN O1 o o M o S Sol aj o e O Ojojoo olo lo OO Ojojoo o o olo lo ONO a dl E O X ojoj OIO AIO k bd OO OT MN O O X O O dl O O M O O CO O O D O O O BRO O O RO NS IMPORTANT When the C K adjustment is configured under the real values there will be a series of continuous connections and disconnections with minor load variations The system performs more operations than those actually needed When the C K adjustment is configured as high 10 the regulator will need a higher reactive power demand to perform the switching operations and therefore perform fewer operations Calculation of the C K
13. the capacitors configured as OFF forced disconnection will be turned on for 1 second every 4 seconds gt The icons of the capacitors that have been cancelled by the leakage current alarm will flash every second gt Inthe case of the disconnection after changing to the setup screen or due to a leakage alarm only the steps connected will start flashing every second 347 2 M98235701 03 12A Computer Smart 6 Computer Smart 12 5 3 1 Functions of the Keys on the Measurement Screens The measurement screens will always be displayed when the unit is in the Normal state RUN Use the keyboard to browse these screens The functions of each key displayed on the measurement screens are described next Browses the screens and returns to the previous screen This can only be done from the instantaneous measurement screens not from the maximum or minimum measurement screens Browses the screens and opens the next screen This can only be done from the instantaneous measurement screens not from the maximum or minimum measurement screens Opens the maximum measurement screen if available 4 Opens the minimum measurement screen if available Returns to the instantaneous measurement screen from the maximum or minimum measurement screen lt also returns to this screen automatically after 5 seconds of inactivity when no key has been pressed Connecting capacitors manually Hold down the key for more than 3 seconds and the r
14. the manual to prevent damage to the unit and or adjacent equipment v Always use original spare parts or components when adjusting or replacing components and follow the corresponding procedures described in the instruction manual 1 1 Checks to be carried out when the regulator is received On receiving the regulator check that The unit has not been damaged during transport The type supplied is the same as that requested See label on the rear Fig 1 1 Check the features shown on the unit s label to make sure that they are valid for the type of grid where the unit will be connected Voltage and power supply frequency measurement range etc Follow the instructions described in section 2 in relation to the rest of the installation and setup Please contact the technical commercial service of CIRCUTOR SA if you detect any anomalies M98235701 03 12A Computer Smart 6 Computer Smart 12 vis Viz Vis Vin L A COM 1 2 3 4 5 6 LARM Vi Vio Via Viw COM 12 3 4 5 6 E A RELAY Ct C6 Pma erica E y i FECHADOR s1 s2 y E Ye e E DS DS2B2S 2 C I j Made in EL R I COM 7 B 9 101112 Model Computer AMuant 12 Steps Power Supply VL1 WL2 400 V ac 50 60 Hz 11 VA Measure Vpn ph 400 V ac I In 5SA ac Ixmax 2 mA ac Relay Out 250 V ac 4 A ac COMM I la RS 485 k P Si s2 com 7 8 9 10 1 12 51 52 S B A
15. time between the disconnection of a stage and its reconnection Tr Tr is always 5 times the Tc This device can adjust the Tc in a range of 4 seconds to 1000 seconds and the capacitor reconnection time Tr between 20 and 5000 s The Tc parameter is configured to 10 seconds by default and the Tr parameter is configured to 50 seconds by default 24 M98235701 03 12A Computer Smart 6 Computer Smart 12 Communications Setup Screen PC9 TypeC2 COMM This screen is used to configure various communications related parameters RS 485 for the unit The baud rate 9600 19200 or 38400 The parity nonE None EvEn Even odd Odd The number of stop bits 1 or 2 The peripheral number assigned 1 255 VVVV Alarm Enable Screen PA1 TypeC3 ALARM This screen will be used to configure each type of error or alarm from E01 to E14 see Table 5 5 Enable or disable and associate the said error or alarm to the activation of the alarm relay The following can be configured for each error or alarm gt On Off Enable or disable the error or alarm gt Yes No Associate to the alarm relay or not gt Alarm Displayed Cosine Alarm Setup Screeng PA2 TypeC2 These parameters establish the action limits of the alarm After the alarm is enabled from PA1 the system will display an error code see Table 5 5 when the cosine value gis lower than the value configured and the current is h
16. 05865 aj RS 485 RS 232 301 293 h a ecae e i 36066 i yam m A B S Fig 2 5 Example of an RS 485 network using Computer Smart 6 12 10 M98235701 03 12A Computer Smart 6 Computer Smart 12 3 GENERAL FEATURES crcuror The Computer Smart 6 Smart 12 power factor regulators measure the grid cos and regulate the connection and 9 disconnection of capacitors to correct it The Computer Smart 6 and Smart 12 models can control a different number of relay outputs each r Maximum no outputs Computer Smart 6 6 relay outputs plus an alarm relay A Computer Smart 12 12 relay outputs plus an alarm relay computer AMaAM D SS Here are some of the most important features of this series of regulators Power and voltage measurement circuits in the same inputs Different models for different voltages 110 230 400 and 480 Vac Indiscriminate use of the 50 or 60 Hz frequency Easy to install with no need to use tools Dimensions in compliance with DIN 43 700 144 x 144 mm front panel 4 quadrant control see Fig 3 1 with indication about the stages connected indication of the cos q type of reactive power inductive or capacitive AF and display of energy import or export EXPORT icon LCD screen with 15 digits and seven segments on 4 lines plus 55 icons to display the different operating conditions Grid analyzer function with the
17. ED O OLED O OLE DE O LEE O LEE O LED O OLED O OLE O LE O OLE LO LEDE O LE DO LED DO LEE O LEDA O DELE O LEDA O L LE O LOL LO LE E O LOL O DELE O LOL DO LOD O L LED OLE O LED DO L LED LOLA OLO DD EE EEE KEE E RE E E LEDEN ELE DO LED O LELE DO TOLEDO O LED OL LEO O LED OL LE LOL L OLO ED O OLED L LED O LED OL LED O OLED O OLED O OLED OL LE O O LED O L L O OLED O OLED O OLED O LED L OLED O LED A O EL O kot hb ktkk Browsing the measurement screens with no minimum measurements Long Press SA mmmuuuuiununae Previous Screen Previous Screen Type M2 i gt Type M2 Maximum Type M3 Screen Max Long Press deletion Ena H Next Next Screen Screen a NN 19 Long Press Computer Smart 6 Computer Smart 12 Maximum deletion Browsing the connections Num gt Connections deletion M98235701 03 12A Computer Smart 6 Computer Smart 12 5 4 Setup Screens A series of parameters must be programmed to adjust the regulator to the type of installation where the cos will be regulated The programmable parameters are found on the different setup screens shown next in order Each screen indicates its functionality aided by the icons shown on the right of the display The setup screens state whether the parameter edition mode is active or not The parameters that can be edited start flashing when the mode is active If the parameter is n
18. EENS win renino E a E o o 15 5 3 1 Functions of the Keys on the Measurement Screens ooooooocccccncnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnss 18 VAZ BrOWSING TIE Measurement SCHCCIIS ies Do e sd baby ono lee 19 5 4 SEUA NS do 20 HA PURENOANS O the Keysin the CIID COCOS A REN 28 IA BO WS ES MES AUS AE dt ds cas 29 5 5 ERROR MESSAGES ERRORS AND ALARMS Sisa 30 5 6 ALARM BEAR Vda st 30 6 INTEGRATION OF COMPUTER SMART IN SCADA POWER STUDIO o occcccccccconocccocccocccccccccccccccocccoonnss 31 7 MATES TENANCE 3 a a 31 8 TECHNICAL SERVICE iia ia 32 M98235701 03 12A Computer Smart 6 Computer Smart 12 1 INTRODUCTION AND SAFETY TIPS CIRCUTOR S A thanks you for choosing one of the regulators from the Computer Smart series These units have been built with state of the art technologies including a powerful processor that can calculate the optimum algorithms and achieve the best correction of the cos q The units comply with the EN 61010 Electrical Safety Standard in accordance with the Low Voltage Directive requirements LVD 73 23 EC as well as the EMC Directive 2004 108 EC and are therefore certified for use with the CE mark The purpose of this user manual is to describe the operating principles for the regulators from the Computer Smart series and to define the installation start up and operation procedures SAFETY The installation and maintenance of the equipment must be performed by qualified and author
19. connections and disconnections Therefore the configuration of this parameter has a direct impact on the compensation speed in other words on the monitoring capacity after changes in load Establish a shorter connection time to improve the power factor correction when the load can change quickly However a shorter Tc will lead to a higher number of connections per time unit shortening the useful life of the associated components contacts capacitors To assess the number of connections Computer Smart uses individual meters for each capacitor The reconnection time is the minimum time between the disconnection of a stage and Its reconnection This time is required to discharge the capacitor enough to prevent an over current in the system after it is reconnected 1 2 7 Harmonics and THD Non linear loads such as those in rectifiers inverters speed drives kilns etc absorb non sinusoidal periodic currents from the grid These currents are composed of a fundamental frequency component rated at 50 or 60 Hz plus a series of overlapping currents with frequencies that are multiples of the fundamental frequency they are defined as harmonics The result is a deformation of the current and as a consequence of the voltage which leads to a series of associated secondary effects overloads in conductors machines and automatic switches phase offsets interferences in electronic equipment RCCB trips etc The level of harmonics is usually mea
20. d out by the regulator The following setup options are available for each capacitor gt On Capacitor forced to On always connected gt Off Capacitor forced to Off always disconnected gt Auto the state of the capacitor depends on the operation performed by the regulator The screen will display C1 C2 etc to show which of the 12 capacitors is being configured Use the and keys to run through the different capacitors Capacitors are configured in the Auto mode by default On the measurement screens the icons of the capacitors configured as ON forced connection will be turned off for 1 second every 4 seconds Similarly the icons of the capacitors configured as OFF forced disconnection will be turned on for 1 second every 4 seconds lam on off Auto Display State Setup Screen PC11 TypeC2 This parameter establishes the display s lighting state The setup options are as follows gt On always lit gt Off always turned off except when there is an alarm or interaction with the user gt Auto turns on when a key is pressed and turns off when no key has been pressed during a period of 5 minutes The brilliance can also be configured from 0 to 100 when the display is on The unit s default settings are Auto and 60 brilliance DISPLAY Autotest Screen PC12 TypeC4 These screens are opened and closed with a special process hold down the A keys on any setup screen not in
21. d they are also described in the quick guide attached They are summarised in the following table Main power supply and 480 400 230 or 110 Vac 15 10 50 60 Hz see label Power supply U1 voltage measurement U2 Measurement U UL Uz and Un Power supply cables Section 1 5 mm2 gl 0 5 to 2 A protection fuse Current measurement Current transformer CT In 5 A AC preferably on phase L1 Min cable section circuit 2 5 mm2 Leakage current Nominal current of transformer secondary Asec 2 mA AC Transformer with measurement circuit ratio of 500 JA 1 A AC 20 Current measurement Current 0 05 5 A AC maximum overload 20 margin Leakage current A 0 01 1 A AC maximum overload 20 Measurement accuracy Voltage and current 1 cos q 2 1 digit Temperature A l o 4 30 measurement External temperature approximation Range 0 80 C Accuracy 3 C Consumption 8 2 VA empty 9 3 VA 6 relays 11 VA 12 relays Output Relays Contacts for Umax 250 Vac 4 A AC AC1 Cabling and output relay Cable section 1 5 mm2 protection with circuit breaker C curve of 6 A or gl 6 A protection fuse Alarm relay Switched relay for use exclusively for the alarms IEC 62053 23 2003 01 Ed 1 0 IEC 61326 1 EN61010 1 UL 508 Safety Insulation Category Ill Class Il according to EN 61010 1 IP40 equipment mounted cabinet front panel IP30 equipment not mounted according to EN 60529 Standards
22. does not detect the a I connection of the leakage current transformer When an alarm or error is detected the equipment will display it when said alarm has been enabled see the Setup section 5 6 The backlight display light will flash when the alarm has been triggered and an error code will be displayed on the measurement screens in addition to the alarm icon The unit is configured by default with the 6 first alarms enabled E01 to E06 5 6 Alarm Relay The unit has a switched relay that is exclusively used as the alarm output The possible errors or alarms can be separately associated to the activation of the alarm relay on the Alarm Enable screen PA1 To see the connections check Section 2 2 30 M98235701 03 12A Computer Smart 6 Computer Smart 12 6 INTEGRATION OF COMPUTER SMART IN SCADA POWER STUDIO Computer Smart systems have an RS 485 communications channel so that they can be integrated as an additional peripheral in CIRCUTOR s SCADA Power Studio software They can be connected either directly through an RS 485 bus or integrated into an Ethernet network with an RS 485 to Ethernet Modbus converter CIRCUTOR TCP2RS TCP or similar The communication features are defined on the Communications setup screen section 5 5 The peripheral number unit identification number in the Power Studio Scada network transmission speed and features of the communications frame sent parity stop bits etc are defined on this scr
23. e Computer Smart is powered showing ul the unit s version voltage model and number of relays available This information YA must be included when reporting any fault or defect Pa After a few seconds the unit will display the first measurement screen i e the default screen 5 2 Device States Long press Long press Long press or time or time m RUN A serup E VERIFICATION Power Device oe a cc Long press 4 The Computer Smart regulators can have two states Normal State RUN This is the normal operating state of the regulator where it measures the installation s cos among many other parameters and automatically regulates the connection and disconnection of capacitors to correct this value The regulation method depends on different parameters configured in the setup state SETUP The variable measurement screens will always be displayed when the unit is in the Normal state The unit will automatically open this default screen after 10 minutes of inactivity and no key is pressed see Section 5 3 The Manual Connection Disconnection of Capacitors can only be carried out in this state by holding keys or key W Hold down key to change the state from normal to setup The regulator will sequentially disconnect all capacitors that are connected before opening the setup state Setup State SETUP The different work parameters of the regulator can be configured in this state Likewise the equip
24. e next option when in the edition mode Displays the previous screen in special groups when not in the edition mode such as Alarm Enable PA1 On Off Auto PC10 and Autotest PC12 Returns to the Setup screens when in the Verification screen Decreases the value of the configurable parameter or displays the next option when in the edition mode The process is started from the Plug amp Play screen long The process is started or stopped from the Autotest screen M v Opens and closes the Autotest screen long 28 M98235701 03 12A Computer Smart 6 Computer Smart 12 5 4 2 Browses the setup screens Browses and edits the setup screens AO 97 Screen M y Change of parameter to Measurement O Verification O O gt gt beedited Screens Screen 4 Tipo C2 Type C2 Long Press Long Press iti 4 RUN Type C5 O Edition gt Edition of the i gt configurable parameter Previous Screen A Change of parameter to 4 gt edad M v Change of parameter to gt be edited T pe C3 Tipo C3 Measurement O Verification O Edition 4 e l Screens lt Screen lt gt O gt Edition of the RUN Long Press Type C5 Long Press d configurable parameter v y Next Screen Previous Screen M
25. e regulation process is carried out in stages so that this will not affect any switching operations until the non compensated demand is at least 70 of the power of the smallest stage or the excess compensation is 70 of the power of the smallest stage Any value ranging from 0 7 Inductive Y to 0 7 Capacitive IF can be configured 91 M98235701 03 12A Computer Smart 6 Computer Smart 12 Setup Screen of the Voltage and Current Phase PC4 TypeC2 This parameter can be used to adapt the regulator to the different connection options of the power supply and measurement cables and those of the current transformer to the phases of the three phase system The default setup is shown in Fig 2 2 i e the current transformer on phase L1 and the voltage is measured in the L1 L2 and L3 phases It is often hard to check whether the unit has been cabled like this or not so that one of the Ph 1 to Ph 6 options shown in Table 5 2 must be chosen to cater for this situation Each option should be selected during the installation adjustment when inductive reactive power is being consumed with a cose of 0 6 to 1 inductive The options can be viewed until the screen shows a coso of 0 6 to 1 the cosine displayed on this screen is for information purposes only and can not be edited Table 5 2 Computer Smart Phase Selection Options V Measurement phases CT Connection Phase Screen L1 L2 L3 L1 L2 L3 L1 Invert
26. ed Transformer L2 Inverted Transformer L3 Inverted Transformer C K Factor Setup Screen PC5 TypeC2 CIK This parameter is adjusted with the reactive current supplied by the smallest capacitor step measured on the current transformer s CT secondary Its adjustment value will depend on the power of the smallest capacitor step the CT ratio and the grid voltage The value can be adjusted between 0 02 and 1 00 Table 5 3 shows the values that must be used to adjust the C K for a grid with 400 Vac between phases the different transformer ratios and the powers of the smallest stage In the case of other voltages or conditions that have not been included in the table the C K value can be obtained with a simple calculation as shown next Table 5 3 C K Factor in accordance with the smallest stage power and current transformer CT ratio CT Ratio llls 150 5 0 12 200 5 250 5 300 5 400 5 0 05 2 o M Power in kvar of the smallest stage in kvar at 400 V 5 O1 o as dl oS oS NO dl O1 NO oS oS NO O1 ololo Ro RO oo N ololo ND Ao Ko O ololo oo Go e o o 0 SO SO w DO k lwe ololo DOT MU o ON M NO olo 00 DIN o Ro K O O O P CO O M NS A gt o1 c o M al o o o Oo O N oN ojal lo NIS S M k NS o ah D o oo o No
27. een For more details about the SCADA software check the Power Studio software manual 7 MAINTENANCE The Computer Smart 6 or Computer Smart 12 regulator does not require a special type of maintenance Try to avoid any form of adjustment maintenance or repairs while the unit is open If this cannot be avoided only qualified and trained staff must carry out these operations Disconnect the unit from all power supplies before performing any connection modifications relocation maintenance or repair operations If you suspect any operational faults in the unit or in its protection system remove the device from service and make sure that it cannot be accidentally reconnected The design of the device makes it easy to replace in the event of a fault aye hee M98235701 03 12A Computer Smart 6 Computer Smart 12 Mas de 3000 productos 5 divisiones de productos que aportan soluciones a cualquier proceso de generacion transporte y consumo de la energia el ctrica Productos orientados a la supervisi n de las instalaciones el ctricas instrumentaci n anal gica instrumentaci n digital contadores de energ a de uso interno analizadores de redes el ctricas transformadores de corriente analizadores port tiles y software de supervisi n y control Protecci n diferencial industrial la protecci n con posibilidad de reconexi n autom tica adem s de una amplia gama de rel s de protecci n para aplicaciones mu
28. egulator will connect the steps sequentially at different time intervals in long accordance with the connection time setting see Section 5 5 Disconnecting capacitors manually Hold down the key for more than 3 seconds and the regulator will disconnect the steps sequentially at different time intervals in long accordance with the connection time setting see Section 5 5 Deletes the maximum measurements from the screen only on the maximum measurements screen long Deletes the number of connections only on the connection number screen Deletes the minimum measurements from the screen only on the minimum measurements screen long After opening the Setup state SETUP any steps connected will be automatically disconnected with the corresponding disconnection time ong M Deletes the minimum and maximum measurements from the screen only on the LW minimum and maximum measurements screen long 18 M98235701 03 12A 5 3 2 Browsing the Measurement Screens Forcing stages and changing to the Setup mode gt Manual Switch Connection Long Press Manual switch Disconnection Long Press gt Setup Screens Long Press Previous screen A M Minimum P 4 Type M1 l Type M1 deletion Long Press Min lt 4 Screen O gt gt A po gt Type M1 e Max gt 4 v v Next screen ELEDLEL
29. harmonic distortion of the current in C1 C2 C3 C4 C5 C6 gt Current Harmonics Screens PM10 and PM11 TypeM2 C7 C8 C9 m C1 C2 C3 C4 C5 C6 HARM gt There are two screens The first screen shows harmonics 3 5 and 7 and the second screen shows harmonics 9 11 and 13 The following data is displayed gt 3rdor 9th current harmonic in gt 5th or 11th current harmonic in gt 7th or 13th current harmonic in 46 4 M98235701 03 12A Computer Smart 6 Computer Smart 12 Screens with the Number of Capacitor Connections PM12 PM13 PM14 and PM15 TypeM3 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 n Connec The number of screens will depend on the number of capacitors configured We will have a maximum of 4 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 MA 9 n Connec a m o R m screens since the information of 3 capacitors will be shown on a single screen The screens are alternated automatically to show the number of connections for each capacitor C1 C2 up to C12 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 n Connec C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 rie L ou l l l n Connec LL a DS Flashing capacitor icons on the measurement screens gt The icons of the capacitors configured as ON forced connection will be turned off for 1 second every 4 seconds gt The icons of
30. he same power as the first stage Program 1 2 2 After the second stage all capacitors have a power that is twice as much as that of the first stage Program 1 2 4 The second stage has a power that is twice as much as that of the first stage and all subsequent stages have a power that is four times as much as that of the first stage The unit can easily configure one of the 10 standard programs which are as follows 1 1 1 1 1 2 2 2 1 2 4 4 1 2 4 8 1 1 2 2 1 1 2 4 1 2 2 4 1 2 3 3 1 2 3 4 1 2 3 6 An open program can also be configured between 1 1 1 1 and 1 9 9 9 in special cases To do so select the OPEn option a second line that can be edited will appear in this case PROG The unit is configured with the 1 1 1 1 program by default Table 5 4 Programs available in the Computer Smart system Screen Display C Stage Power Ratio 1111 1 1 1 1 1 1 1 1 1 1 up to 1 9 9 9 9 Setup Screen of the Number of Stages PC7 TypeC2 STEPS This screen can be used to configure the number of relay outputs for the regulator Up to 6 or 12 outputs can be configured depending on the model Computer Smart 6 or Smart 12 Setup Screen of the Connection Tc and Reconnection Tr Delay Time PC8 TypeC2 DELAY This parameter establishes the unit s action time in seconds The adjustment time Tc establishes the delay to connect or disconnect subsequent stages It also regulates the
31. ies of associated capacitor units that remain charged up to 5 minutes after the unit has been disconnected from the grid Make sure that all capacitors have been discharged before handling the unit The installation of an external current transformer CT is necessary to measure the current Usually the transformation ratio of this CT is In 5 A where In must be a minimum of 1 5 times over the total maximum current of the load The current transformer CT must be installed on the connection point where all of the loads current circulates and where the current of the capacitors will be compensated see Fig 2 1 The current transformer CT should preferably be connected to phase L1 while the voltage connections should be connected to phases L1 L2 and L3 see diagram in Fig 2 2 Connections P1 P2 S1 and S2 shown on the said diagrams should be respected In case the connection layout mentioned above is not respected the phase must be adjusted following the procedure described in section 5 5 CORRECT INCORRECT mme LOAD CAPACITORS CAPACITORS CAPACITORS The current transformer CT When the CT is connected in this must measure the joint current position NO CAPACITORS WILL When the CT is connected in this of the capacitors and the loads BE CONNECTED even when Position ALL CAPACITORS WILL If this does not work make inductive loads are present The BE CONNECTED However they sure that the CT is not short unit will not perf
32. igher than the value configured The cosine value configured can range from 0 to 0 99 in inductive and Capacitive AP The current value configured is rated in A and it can range from O to 9999 A This alarm is activated with a 15 second delay THD Alarm Setup Screen PA3 TypeC2 HA CI aL ALARM THD These parameters establish the action limits of the alarm After the alarm is enabled from PA1 the system will display the corresponding error code see Table 5 5 when the THD Voltage or THD Current value is higher than the value configured The values configured are expressed in and can range from 0 to 99 This alarm is activated with a 15 second delay Setup Screen of the Leakage Current PA4 TypeC2 There are various alarms related to leakage currents E09 E12 E13 and E14 see Section 5 7 The second parameter is used to establish the action limits of alarm E09 When the alarm is enabled from PA1 the system will display the corresponding error code E09 see Table 5 5 when the leakage current measurement is higher than the value configured The value is configured in mA and it can range from 10 to 1000 mA The alarm delay cannot be configured and it is lower than 2 seconds depending on the leakage current measurement when compared to the limit established Ins Lo 10 0 Pu m 3 gt LC ALARM ILEAK The first configurable parameter On Off is used t
33. ised staff in accordance with the national and international Standards Any manipulation or use of the equipment different from that specified by the manufacturer may compromise user safety The main switch must be disconnected before any maintenance to be performed on the cos regulation equipment After the main switch has been disconnected wait at least 5 minutes to make sure that all capacitors have been discharged The following safety precautions must be taken into account during installation maintenance or start up operations on equipment regulated with a Computer Smart unit v Make sure that the units have the corresponding earthing connections before they are connected A faulty earthing connection could lead to a faulty operation and represent the risk of electrical discharge to the user or person handling the equipment v The necessary precautions will be taken during maintenance operations to prevent the risk of electrocution and electric shock Make sure that the unit has been disconnected and wait until the capacitors have been fully discharged before handling or operating the unit We recommend the use of safety goggles and gloves v Resonance can be produced when the power factor compensation units are connected with no loads In this case the voltage harmonics can be amplified causing damage to the compensation equipment and other equipment connected to the network v Follow the start up and stop procedures described in
34. l state capacitor bank The steps configured to ON forced connection are taken into account during the simulation and their icons will be turned off for 4 seconds to set them apart from the stages connected automatically M98235701 03 12A Computer Smart 6 Computer Smart 12 5 4 1 Functions of the Keys in the Setup Screens The setup screens will be displayed when the unit is in the Setup state The setup screens state whether the parameter edition mode is active or not This is easy to see since the parameters that can be edited start flashing when the mode is active If the parameter is not flashing the edition mode is not active and it can not be edited Use the keyboard to browse these screens The functions of each key displayed on the setup screens are described next K Opens and closes the parameter edition screen Opens the Verification screen O Closes the Setup state from the Verification screen and opens the Measurement screens long RUN Browses the screens and returns to the previous screen when not in the edition mode Returns to the previous setup parameter when in the edition mode Browses the screens and opens the next screen when not in the edition mode Opens the next setup parameter when in the edition mode Displays the next screen in special groups when not in the edition mode such as Alarm Enable PA1 On Off Auto PC10 and Autotest PC12 Increases the value of the configurable parameter or displays th
35. ment will not perform the regulation functions while active in this state i e it will not connect or disconnect capacitors to regulate cosine The setup screens will always be displayed when the unit is in the Setup state The unit will automatically open the verification screen after there are 10 minutes of inactivity and no key is pressed see Section 5 5 Likewise if there are another 10 minutes of inactivity and no key is pressed the unit will automatically return to the Normal state RUN on the default screen see Section 5 3 Hold down key Gto change from the setup state to the Normal state A verification screen will be displayed first Confirm the change to the Normal state by holding down Or press to continue in the setup state 14 M98235701 03 12A 5 3 Measurement Screens In the normal state the regulator measures different parameters which can be displayed on different screens The device also acquires the maximum and minimum values of the said parameters and displays them after the last reset even after the unit is turned off and restarted All measurement screens show the capacitors that are connected at that moment the flashing backlight and Computer Smart 6 Computer Smart 12 the alarm icon Most screens also display the alarm code The unit s measurement screens are as follows in order Default screen Cos III phase phase voltage lll and current PM1 TypeM1 C1 C2 C3 C4 ZJ 0 o W
36. nput S2 Leakage current input Only for Smart Computer 12 Leakage current input RAZA RAS I COM 7 8 9 10 1112 RS 485 Input A RS 485 Input B RS 485 S Input NC or NO Relay output COMM Nominal voltage depending I I RS 485 on the type See label on the M98235701 03 12A Computer Smart 6 Computer Smart 12 Leakage current connection A The leakage current transformer must be connected in such a way that it measures the current of the capacitor bank This will detect any leakage in the capacitors of the capacitor bank The transformer must have a ratio with 500 spirals and the current measured must not exceed 1 A AC LOAD Capacitor Bank Fig 2 4 Connecting the leakage current transformer A Connecting RS 485 Communications elements The Smart computer regulators can be connected to a computer or another unit by means of the RS 485 bus series included With this system the data can be centralised in a single SCADA registry point Power Studio System In a network of equipment the Smart computer communicates by question answer slave The Smart computer communicates with the MODBUS RTUO protocol which enables it to access the electrical parameter and the main variables and configurations Contact the manufacturer to obtain the table of addresses See section 4 4 to change the communications configuration RS 485 USB PC y i _ Other devices fe 6955055
37. o connect and disconnect all capacitors after the E09 alarm has been tripped in order to search for the capacitor s responsible for the leakage Once the capacitor has been detected it is disconnected so that it can not be connected again In this case the unit will display the corresponding error code see Table 5 5 with the capacitors that have been disconnected These capacitors will flash every second on any of the measurement screens 95 M98235701 03 12A Computer Smart 6 Computer Smart 12 In case there are capacitors that have been disconnected a third editable parameter No Yes will be displayed on the setup screen which can be used to activate the capacitors that have been deactivated by this alarm To configure the first parameter as ON the E09 must be enabled from PA1 Once it is On E12 and E13 will be automatically enabled see Table 5 5 Temperature Alarm Setup Screen PA5 TypeC2 This parameter establishes the action limits of the alarm After the alarm is enabled from PA1 the system will show the corresponding error code see Table 5 5 when the temperature exceeds the value configured aam The value is configured in C and it can vary from 0 to 80 C Dic This alarm is activated with a 20 second delay Forced Step Setup Screen On Off Auto PC10 TypeC3 This parameter is repeated for each one of the 6 or 12 capacitors and it can force their state regardless of the operations carrie
38. orm the Will not be disconnected when the circuited compensation functions load decreases Risk of over compensation in the grid with no load Fig 2 1 Location of the current transformer M98235701 03 12A Computer Smart 6 Computer Smart 12 2 2 3 Cable sections and protection elements The power circuit must be protected with gl IEC 269 or M type fuses IEC 127 with a rating of 0 5 to2 A A circuit breaker or equivalent device must be used to connect and disconnect all of the unit s control circuits Computer Smart power supply relay circuits and contact coils from the power supply grid The circuit breaker must be installed on the equipment and be easy to access The power circuit and relay contact circuits must be connected with cables with a minimum section of 1 5 mm The cables of the current transformer s CT secondary must have a minimum section of 2 5 mm In the case of distances between the CT and the regulator over 25 m this section must be increased by 1 mm for every 10 m 2 2 4 Connection diagrams Computer Smart 6 12 E erminals Vis V2 vsvn do comi 2 3 4 5 6 ALARM Voltage input L3 COM por MEA E Via Vie VYLaVim NA O o 1 T ME Z O es Pe n A TE PRO AH AA 9 Relayoutputo E H Relay output 7 EEN Relay output10 k aaa y oo ab eo Gy amp alk A 8 Relay output 8 pi Relay output 11 l RELAY CT C12 Relay output 12 S1 Current input S1 Current i
39. ot flashing the edition mode is not active and it can not be edited The following parameters can be configured Plug amp Play Screen PC1 TypeC1 The Plug amp Play screen is the first screen displayed in the Setup state The Plug amp Play pe function assists the user during the configuration of the unit since it automatically configures the basic parameters that are required for the equipment to perform the regulation functions correctly Hold down to activate the Plug amp Play function The unit will then start a capacitor connection and disconnection process performing a series of measurements and calculations to obtain the following capacitor bank parameters Phase C K factor program and number of stages these parameters can be configured manually on their respective screens When the unit s Plug amp Play function is active the two screens will be displayed in alternating mode In addition the backlight will flash and this will appear until the process is complete it can take a few minutes The capacitors will be connected and disconnected during the process and they will be displayed on the screen mew ar a U m _ J r am a h 2 a LI v IT gt o m x cas U U O STEPS Once the unit s Plug amp Play function is complete if no errors are detected during the process the results will be displayed on the screen as follows Cos 4 Line 1 Current
40. power fractions power of the first step that can be regulated with the use of stages with a different weight 1 2 4 Regulation Program The power ratings of the different groups or stages usually follow certain patterns called programs The program indicates the power ratios between different stages The most frequent programs are Program 1 1 1 1 All stages have the same power For example a 100 kvar unit with 5 steps would be composed of 5 identical 20 kvar stages and it would be described as a 5 x 20 kvar unit Program 1 2 2 2 All stages after the second stage have twice as much power as the first stage For example a 180 kvar unit with 5 stages would be composed of a first 20 kvar stage and 4 identical 40 kvar stages It could be described as a 20 4 x 40 kvar unit Program 1 2 4 4 The power of the second stage is twice as much as the first stage and all other stages after the third stage would have four times as much power as the first stage For example a 300 kvar unit with 5 stages would be composed of a first 20 kvar stage a second 40 kvar stage and 3 identical 80 kvar stages It could be described as a 20 40 3 x 80 kvar unit Other Programs Other programs can be used such as 1 2 2 4 1 2 4 8 or 1 1 2 2 etc The meaning of the numbers as assumed in previous cases shows the proportion of the powers between the first stage which receives a value of 1 and the next stages 2 means twice as much power 4 means four
41. sured with the total harmonic distortion rate THD which is the ratio usually as a of the RMS value of the harmonic content and the value of the fundamental component M98235701 03 12A Computer Smart 6 Computer Smart 12 2 INSTALLATION AND START UP This section contains information and warnings that the user must respect at all times to guarantee his own safety and the safe operation of the device WARNING The Computer Smart regulators are connected to units with capacitors that remain charged even after the voltage has been disconnected Wait at least 5 minutes after the equipment is disconnected before the internal components of the equipment are handled in order to avoid the risk of electric shock Any manipulation or use of the equipment different from that specified by the manufacturer may compromise user safety The power supply must be disconnected from the unit when it shows signs of deterioration or a faulty operation In this case contact a qualified service representative The persons responsible for the installation or operation of the Computer Smart 6 or Computer Smart 12 regulator must follow the common safety measures for LV or MV installations to guarantee a safe operation depending on the installation location In addition they must take into account all safety warnings stated in this instruction manual 2 1 Technical features The main features of the unit are marked on the label on the rear see Fig 1 1 an
42. the edition mode Hold down to manually start and SU end the Autotest process Sena The Autotest screens one per capacitor show the power measured and the leakage aera current of each capacitor press ort to run through the capacitors To do so start TESTIL 1 the Autotest process so the equipment will connect and disconnect the capacitors in the bank one by one to obtain said measurements The values displayed are those obtained during the last Autotest process carried out The Autotest process only connects the number of steps configured and does not connect the steps disconnected by the leakage current alarm or the steps set to OFF in the On Off Auto screen 96 M98235701 03 12A Verification Screen PC13 TypeC5 The Verification screen shows information that cannot be edited and it is opened before activating the Setup state e this screen will be opened when changing from the Computer Smart 6 Computer Smart 12 Normal RUN state to the Setup state The Verification screen shows certain information that can be used to either open the Normal state by holding or returning to the Setup screens by holding The information displayed is as follows gt gt gt gt Cosine measurement o Three phase reactive power The word Stop reminds the user that the Normal state has not been activated 97 Simulation of the steps connected when activating the Norma
43. three phase cosine Line 2 C K parameter calculated Line 3 Program Line 4 Number of stages Steps detected In addition to these parameters the Pluga Play function will also calculate the Phase although it will not be displayed on the screen ca A E IA gt A L 330 m5 ao S The Plug amp Play function will find a program from the 10 standard programs offered 1111 1222 1244 1248 1122 1124 1224 1233 1234 1236 When the capacitor bank program is not a standard program the Plug amp Play function can be started by holding down The program that is closest to that installed between 1111 and 1999 will be found In this case a greater load stability is required for the Pluga Play function to find the correct program The process will be aborted and this will be displayed on the screen when there is an error during the execution of the Plug amp Play function When a parameter has been calculated correctly before the error is detected it will be displayed on the line assigned previously The Plug amp Play function can display the following errors 20 M98235701 03 12A Computer Smart 6 Computer Smart 12 Table 5 1 Plug amp Play Errors and messages displayed on the screen ERROR Description Some stages can be cancelled by the leakage current alarm or forced in the On Off Auto Setup The Plug amp Play function cannot be executed in these cases m i l Phase not found Cosine out of range between 0
44. times as much power etc The unit can easily configure one of the 10 standard programs which are as follows 1 1 1 1 1 2 2 2 1 2 4 4 1 2 4 8 1 1 2 2 1 1 2 4 1 2 2 4 1 2 3 3 1 2 3 4 1 2 3 6 An open program can also be configured between 1 1 1 1 and 1 9 9 9 in special cases 1 25 Plug and Play A series of parameters must be configured when a power factor regulator is installed to make sure that it operates correctly Some of these parameters might be hard to know such as for example the voltage phases or the voltage corresponding to the current measured as well as the current transformer ratio Computer Smart has been designed with a smart automatic process that detects the necessary parameters such as gt C K calculates the ratio of the current transformer and the power of the smallest step gt Phase Identifies the voltage sequence and correspondence with current In other words it identifies the U U2 Us when the current measured is 114 he h3 and whether it is connected in the opposite way or not gt Number of stages installed and Program the system connects all stages in a sequence finds out how many stages are installed and then calculates the program i e the power ratio of the capacitors see Section 1 2 4 M98235701 03 12A Computer Smart 6 Computer Smart 12 1 2 6 Connection and Reconnection Time Connection time Tc defines the minimum time between changes in the status of stages i e between
45. tive power but all stages are disconnected This can be due to the incorrect adjustment of the C K parameter Over current The current measured exceeds the nominal current by 20 The nominal current is considered to be that of the TC primary LN A A Dl AAA enes A A A A Overvoltage The voltage measured exceeds the nominal voltage by 15 Low voltage The voltage on some of the phases is 10 less than the nominal voltage THD U alarm The THDU levels are higher than those configured in the THDU Alarm PA3 THD alarm The THD levels are higher than those configured in the THD Alarm PA3 Leakage Alarm The leakage current is higher than that configured in the Leakage Current Alarm PA4 N Cosine Alarm The cosine is out of the range configured in the Cosine Alarm PA2 Temperature Alarm The temperature measured is higher than that configured in the Temperature Alarm PAD Repeated Leakage Alarm Repeated leakages have been detected by the system although these have not been caused by a capacitor Leakage Alarm in Capacitors Leakage has been detected that is caused by one of the capacitors and this capacitor is disabled The capacitors that have been gt be cic A disabled will start to flash on the screen In addition message E13 will be displayed To enable them again see the Leakage Alarm configuration PA4 m 0s AN The Leakage Alarm has been configured but the eguipment
46. y diversas Productos de verificaci n y registro de la calidad de suministro el ctrico Serie QNA y los contadores electr nicos multifunci n monof sicos y trif sicos serie CIRWATT Reguladores condensadores y bater as para la compensaci n de energ a reactiva tanto para baja como media tensi n Para instalaciones con problemas de distorsi n arm nica dispone de filtros de rechazo absorci n y filtros activos Productos para la recarga de veh culos el ctricos con funciones espec ficas para obtener la m xima eficiencia de las redes existentes o futuras redes inteligentes Estaciones de recarga exterior postes para parkings interior y exterior sistemas multipunto sistemas de recarga r pida tarjetas y accesorios de prepago S y JU Lideres en Eficiencia Energ tica El ctrica http eficienciaenergetica circutor es 8 TECHNICAL SERVICE Total or partial reproduction of this publication without previous written consent from CIRCUTOR S A is prohibited For any questions regarding equipment operation or failure call the Technical Assistance Service S A T for CIRCUTOR CIRCUTOR SA Vial Sant Jordi s n 08232 Viladecavalls Barcelona SPAIN 902 449 459 Tel 34 93 745 29 00 Fax 34 93 745 29 14 INTERNATIONAL 34 93 745 29 00 Web www circutor com email central circutor es email sat circutor es 530
47. ying out the corresponding maintenance activities or replacing them while configuring all stages in the default Auto mode IMPORTANT Conditions for the correct operation of the Plug amp Play option The system must be maintained with a cosine of 0 62 to 0 99 inductive during the process The system s power must be stable Any important changes in load gt 10 in less than 20 seconds would lead to the incorrect calculation of the capacitor power ratings There must be enough current in the system at the regulator s input i e gt 100 mA AC When there is a load offset the correct operation of the Plug amp Play function will depend on the phase where the current transformer was connected to IMPORTANT After the P amp P process is complete the CT primary must be configured IP screen before the unit can measure the power and current correctly Setup Screen of the Current Transformer s Primary Ip PC2 TypeC2 e The current of the Current Transformers CT primary is configured with this parameter depending on the type of CT installed to measure the installation s current The adjustment range is 5 to 9999 The CT s secondary is configured to 5 A AC by default q Objective Cosine Setup Screen PC3 TypeC2 This parameter is used to fix the desired power factor for the installation The regulator will add the number of capacitors needed to adjust the value as close as possible to the ficos dF cs objective value Th
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