Automatic Power Factor Controller
for L.T. Applications
APFC-06/xx
xx =04/06/08/12 Relay Output Channels
User Manual
First Release Date: 16
th
April 2018.
Updated on: 17
February. 2022.
Page 1: ...Automatic Power Factor Controller for L T Applications APFC 06 xx xx 04 06 08 12 Relay Output Channels User Manual First Release Date 16th April 2018 Updated on 17th February 2022...
Page 2: ...of the User Manual is likely to get updated Therefore please always refer to the User Manual supplied to the customer along with the Product at the time of product dispatch the Product at the time of...
Page 3: ...rameters 14 Sub menu for display of parameters 15 Power Factor Controller APFC 06 1 Sub menu for display of parameters 15 Method of Keyboard display usage 16 to 18 Keyboard display operations 19 20 Ed...
Page 4: ...easurement Various modes for switching viz Un equal user defined Power Factor Controller APFC 06 Un equal user defined C Series preset series E Series user defined Output Capacitor Banks control 4 or...
Page 5: ...e Range User Selectable 1 Second to 600 Seconds in step of 1 Second Capacitor Bank Discharge Time Range Power Factor Controller APFC 06 Capacitor Bank Discharge Time Range User Selectable 1 Second to...
Page 6: ...er Factor Controller APFC 06 4 Recommended size for cutout on panel door 138 mm x 138 mm Maximum weight with mounting clamps 0 8 kg approx Note Low Depth behind the APFC Panel Door being a slim model...
Page 7: ...Front fascia Keyboard LCD Display LCD Display with LED Back Light having Auto On Off Power Factor Controller APFC 06 PF 1 00 IND A OK PF 1 00 IND A OK 5 7 Keys Key pad...
Page 8: ...PFC 06 6 Voltage Rated Nom 380 485 Vac 50 60 Hz Output terminals Output commands to capacitor contactors COM common C1 C12 C4 or C6 or C8 potential free N O contact 5 A Resistive Load 250 Vac Auxiliar...
Page 9: ...h set as inductive smallest Capacitor bank kVAr x 1 5 width Power Factor Controller APFC 06 7 kVAr Ind kVAr Cap PFLOWER PFUPPER kW PFLOWER PFUPPER smallest Capacitor bank kVAr x 1 5 width Case 2 PFUPP...
Page 10: ...kVAr x 1 5 ensures no hunting during the low kW loading APFC 06 is normally set for PF settings as per first two diagrams shown where PF LOWER is inductive This philosophy helps to optimize the system...
Page 11: ...APFC 06 9 As per this scheme the Supply Load Current sensing CT is put between the source and the PF correction capacitor banks This is as per diagram shown above The voltage feedback is taken from th...
Page 12: ...e above specified schemes Scheme 1 or Scheme 2 can be selected by the user based on the system requirement APFC 06 C1 C2 C3 C4 C12 SUPPLY 2A R C Snubber across contactor coil It is recommended to inst...
Page 13: ...tus is OK OK Over Internal Temp As Sensed Over Load Current As Sensed OT UV OL Under Voltage As Sensed Power Factor Controller APFC 06 Over Voltage As Sensed OV UL Under Load kW As Calculated Over Fre...
Page 14: ...s Manual mode Total number of banks that are operational are eight Bank no 1 is declared as fixed and is in ON condition Bank nos 2 and 3 are in ON condition Bank no 4 is declared as faulty Front fasc...
Page 15: ...ers Also use to change status of bank key Used to shift the cursor to right also used to increase the contrast of LCD in default display screen mode Power Factor Controller APFC 06 13 default display...
Page 16: ...ghter view Darker view Multiple strokes of Left or Right key on default screen can adjust the display contrast For retaining the contrast after adjustment press the Save key Displays values of kW kVAr...
Page 17: ...onics O7th O1 2 V Harmonics O9th OO 3 V Harmonics 11th OO 5 V Harmonics 13th OO 3 V Harmonics 15th OO 2 Overall Values Mains Voltage 00415 6V L L Mains Current 00002 5 A PF 1 000 IND Frequency 50 Hz P...
Page 18: ...g into different modes PRESS Enable If Password Option is Enable Disable Disable PRESS Enter Password Default Display mode Power Factor Controller APFC 06 Enter the 4 digit Password by using keys IF P...
Page 19: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Select 1 Edit Parameter Select 2 Auto Operation Default Display mode Power Factor Controller APFC 06 17 Continued on next page Select 3 Manual Operation...
Page 20: ...PF 0 98 IND M OK Edit Parameters Power Factor Controller APFC 06 18 Edit Parameters General and IO Edit Parameters System Edit Parameters Fault Edit Parameters Step Edit Parameters Utilization Cntr Ge...
Page 21: ...used to perform the operations like Resetting of faulty banks to healthy status Checking the Capacitor banks by turning them ON OFF Declaring specific bank s faulty Masking of the banks so that once a...
Page 22: ...ngs Step Capacitor bank step settings Utilization counter Bank operations utilization counters Power Factor Controller APFC 06 20 Utilization counter Bank operations utilization counters After selecti...
Page 23: ...on levels the difference between the two calculation methods is negligible For instance a signal with THDF of 10 has a very similar THDR of 9 95 However at higher distortion levels the discrepancy bec...
Page 24: ...esume 110 Under voltage flt Off Step 2 Under voltage Limit 074 Under voltage Resume 078 Power Factor Controller APFC 06 Over Voltage As name suggests its for Over Voltage conditions Under Voltage For...
Page 25: ...r tan cos 1 PFUPPER tan cos 1 PFLOWER For PFUPPER Capacitive and PFLOWER Inductive For PFUPPER Inductive and PFLOWER Inductive Under Load kW value setting 1 5 x Smallest Capacitor Bank kVAr tan cos 1...
Page 26: ...limit is the allowed variation in Load kW to detect the Int Temperature Flt Disable 0 Temperature Resume 55 Deg C Temperature Limit 65 Deg C Step Health Chk Disable 0 Bank KVAR Fault Tolerance 25 Bank...
Page 27: ...Ar of any step should be measured when the step turns on Interleaving Delay Interleaving delay is settable Fix Bank Setting Defines the banks that are to be declared as fixed These banks even in spite...
Page 28: ...2 2 2 2 2 2 08 1 1 1 1 1 6 6 6 6 6 6 6 6 6 6 6 09 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 E Series As explained earlier this series is the user defined series Digits can be adjusted from 1 to F i e 1 to 15 U...
Page 29: ...are Yes and No Declaring specific bank no with Yes and pressing save command will reset the specific bank utilization counter to zero This is normally done in case the specific bank is replaced with...
Page 30: ...bing it with Commissioning Instructions Power Factor Controller APFC 06 28 If required Clean the Bus Bars and or Lugs by rubbing it with Polish Paper to remove the oxidation layer Provide contact past...
Page 31: ...uses Turn on the panel 5 Put APFC 06 back in Manual mode and turn ON OFF the individual steps Use Tong tester ac current measurement to check that current in all three phase of the corresponding bank...
Page 32: ...Set the tolerance limits for individual steps monitoring appropriately With continuously fluctuating Load kW THD can cause some Troubleshooting procedure Power Factor Controller APFC 06 30 factor is...
Page 33: ...Bank flt None 7 Aux O P FUNCTION None 0 Trip Flt 1 Sys Flt 2 Out Of Bank 3 None Out of Banks None SYSTEM 1 Meas Voltage 31 1 Meas Voltage 110 480 1 415 2 EXT PT ratio 0000 1 5999 0 1 0001 0 1 3 Curren...
Page 34: ...Voltage Fault Disable 0 Indicate 1 Off Step 2 Off Fixed 3 Fast Off 4 0 4 1 0 32 Fast Off 4 5 Under Voltage Limit 0 Set Resume Limit 1 074 6 Under Voltage Resume Set Limit 99 1 078 7 Over Load Fault Am...
Page 35: ...eg C 0 Set Upper Limit 1 55 15 Temperature Limit Trip Deg C Set Lower Limit 99 1 65 16 Step Health Check Enable 1 Disable 0 0 1 1 0 17 Bank kVAr Fault Tolerance 0 60 1 10 18 Bank kW Fault Tolerance 0...
Page 36: ...e Seconds 1 600 1 60 7 Step Response Cycles 45 45 8 Interleaving Delay Seconds 1 9 1 1 9 Fix bank Setting 10 Bin C E Series Bank kVAr 1 250 1 020 11 Ext Fix Bank kVAr 000 999 1 000 34 11 Ext Fix Bank...
Page 37: ...counter Bank 3 not editable 000000 999999 1 4 Utilization counter Bank 4 not editable 000000 999999 1 5 Utilization counter Bank 5 not editable 000000 999999 1 _______ _______ 35 12 Utilization count...
Page 38: ...Di 1 Reset Bank Flt 2 7 Aux O P FUNCTION None 0 Trip Flt 1 Sys Flt 2 Out Of Bank 3 SYSTEM Blank Forms for Field User Entries FORM I 36 SYSTEM 1 Meas Voltage 2 EXT PT ratio Cancelled in this version 3...
Page 39: ...er Voltage Fault Disable 0 Indicate 1 Off Step 2 Off Fixed 3 Fast Off 4 5 Under Voltage Limit Blank Forms for Field User Entries FORM I 37 5 Under Voltage Limit 6 Under Voltage Resume 7 Over Load Faul...
Page 40: ...3 Fast Off 4 14 Temperature Resume 15 Temperature Limit 16 Step Health Check Enable 1 Disable 0 17 Bank kVAr Fault Tolerance Blank Forms for Field User Entries FORM I 38 18 Bank kW Fault Tolerance 19...
Page 41: ...k Setting 10 Bin C E Series Bank kVAr 11 Ext Fix Bank kVAr Blank Forms for Field User Entries FORM I 39 11 Ext Fix Bank kVAr 12 Correction Type Binary 0 Un Equal 1 C series 2 E Series 3 13 C Series Se...
Page 42: ...tilization counter Bank 9 not editable 10 Utilization counter Bank 8 not editable 11 Utilization counter Bank 8 not editable 12 Utilization counter Bank 8 not editable 13 Clear Bank 1 Counter Yes 1 No...
Page 43: ...i Maharashtra State India Land Line Phones 0091 253 6694 953 Sales Marketing 0091 253 6694 955 Customer Support Service 0091 253 2954 353 Corporate Secretary Working Hours 9 00 AM to 6 00 PM Weekly Of...
