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DKG-108 User Manual                                                                                 V-1.0

(10.08.2011) 

 

-1- 

 

 

DKG-108 POWER 
FACTOR CONTROLLER 

8 BANKS, HARMONIC 
DISTORTION DISPLAY

 

 

 

 

Small size 
Cost effective and high performance 
True RMS AC measurements,high accuracy 
4096 samples/sec measurement rate 
Easy commissioningthrough automatic setup 
Automatic CT reverse polarity correction 
Automatic detection of faulty banks 
Electronic/mechanical power counter selection 
Per-phase regulation capability 
Supports both single-phase and triphasebanks 
Connection/disconnection of all banks at once 
Adjustable delay timers 
Dynamic update of capacitor ratings 
Equal aging of contactors 
Per phase and total V-A-kW-kVAr-cosdisplay 
THD display of all V-I parameters (31 harmonic) 
Generator phase input 
VT ratio for MV applications 
kW and kVAr tick output possibility 
Front panel programmable 
Low panel depth, easy installation 
Wide temperature range 
Sealed front panel (IP54) 
Plug-in connection system for easy replacement

 

 

 

DFC-0108 is a high technology controller 
allowing the power factor of the installation to 
be stabilized to the requested value by 
switching capacitor banks through 
contactors. The unit allows also the 
visualization of various AC parameters like a 
network analyzer. 

The unit makes harmonic analysis up to the 
31th component. The THD values of all 
voltages and currents are available. 

Stepping algorithms are selectable between 
various types. Thanks to the automatic setup 
function, the commissioning and 
programming are made easy. 

The unit fits into a standard 96x96mm panel 
opening. 

 

 

 

 

 
 

DESCRIPTION

 

FEATURES

 

Summary of Contents for DKG-108

Page 1: ...V I parameters 31 harmonic Generator phase input VT ratio for MV applications kW and kVAr tick output possibility Front panel programmable Low panel depth easy installation Wide temperature range Seal...

Page 2: ...he phase voltage inputs in close proximity of the unit Fuses must be of fast type FF with a maximum rating of 6A Disconnect all power before working on equipment When the unit is connected to the netw...

Page 3: ...SPLAYS 4 1 DISPLAYS IN AUTO AND MANUAL MODES 4 2 TEST MODE MANUAL STEP CONTROL 5 STEPPING PROGRAMS 5 1 COMPARAISON OF LEGACY AND OPTIMAL PROGRAMS 6 ALARMS 7 PROGRAMMING 7 1 ENTERING EXITING PROGRAMMIN...

Page 4: ...ed If necessary use extra contactors Below conditions may damage the device Incorrect connections Incorrect power supply voltage Voltage at measuring terminals beyond specified range Current at measur...

Page 5: ...DKG 108 User Manual V 1 0 10 08 2011 5 Panel Cutout Required Panel Depth 1 2 MECHANICAL INSTALLATION 1 1 FRONT REAR PANELS...

Page 6: ...section at least 0 75mm2 AWG18 For current transformer inputs use at least 1 5mm2 section AWG15 cable The current transformer cable length should not exceed 1 5 meters If longer cable is used increas...

Page 7: ...DKG 108 User Manual V 1 0 10 08 2011 7 1 4 CONNECTION DIAGRAM...

Page 8: ...t bank capacitor ratings In such cases auto setup should be repeated and capacitor ratings should be checked corrected through PROGRAMMING menu For a successful auto setup current transformers must be...

Page 9: ...splay will show MtErand the unit will ask the power meter type Press again the MENU button The display will show the power meter type Adjust required power meter type with arrow buttons 0 analog power...

Page 10: ...arameter or increase related value programming mode Switch to lower display or next parameter or decrease related value programming mode HELD PRESSED DURING 5 SEC Switches between AUTO and MANUAL mode...

Page 11: ...active or inactive the led flashes differently C led shows insufficient regulation C led shown excessive regulation OK led indicates a balanced system Current display If the current transformer CT ra...

Page 12: ...ng the MENUpushbutton will select the next step and the related step led will flash Using pushbuttons the step may be activated or deactivated Using the MENUpushbutton all steps may be scrolled manual...

Page 13: ...od 5 1 1 2 4 4 4 4 4 standard configuration legacy program a single step is activated or deactivated at each period 6 1 2 2 4 4 4 4 4 standard configuration legacy program a single step is activated o...

Page 14: ...ng this time the cos had been different from the target and the reactive power counter has recorded reactive power The unit has made 10 contactoroperations The unit has reached the target cos with 6 b...

Page 15: ...U period AL 07 LOW FREQUENCY Occurs if the frequency is belowF Lo limit during F dU period AL 08 EXCESS kW Occurs if the total active power is above A Hi limit during A dU period AL 09 LOW kW Occurs i...

Page 16: ...In order to enter PROGRAM mode please hold pressed arrow buttons for 5 seconds The display will showUser When USEr appears please press MENU pushbutton The password entry display will come Use the arr...

Page 17: ...order to fast increase decrease please hold arrow pushbuttons pressed Press MENU pushbutton The parameter value will be recorded and the parameter name will be displayed again 7 3 MODIFYING PROGRAM PA...

Page 18: ...lues are reset 0 0 1 RESETTING STEP COUNTERS When this parameter is set to 1 step activation and operation counters are reset 0 0 1 RETURN TO FACTORY SETTINGS When this parameter is set to 1 all progr...

Page 19: ...directed to step outputs 1 sec 20 sec 2000 sec STEP TURN OFF DELAY When a new capacitor combination is set to step outputs stepping is disabled during this period 1 sec 30 sec 2000 sec DISCHARGE TIMER...

Page 20: ...adjusted between 0 1 and 200 0 in 0 1 steps 0 1 1 0 200 0 SELECTION OF POWER METER TYPE For the correct operation of the controller this parameter must be set properly 0 analog power meter the sum of...

Page 21: ...TEPS This number of steps starting from the step 1 will be always active 0 0 4 TURN_ON ALERT TIMER After a new step combination has been determined the leds of steps to be modified start to flash and...

Page 22: ...e bank will be used in regulation A bank value below 20 of its nominal value is considered as defective A bank value above 80 of its nominal value is considered as operational In order to determine th...

Page 23: ...he limit must be overridden during this period 0 sec 30 sec 200 sec VOLTAGE ALARM FUNCTION 0 In the occurrence of alarm stepping continues When the alarm source is removed the alarm will disappear aft...

Page 24: ...alarm the limit must be overridden during this period 0 sec 30 sec 200 sec FREQUENCY ALARM FUNCTION 0 In the occurrence of alarm stepping continues When the alarm source is removed the alarm will dis...

Page 25: ...he limit must be overridden during this period 0 sec 30 sec 200 sec ACTIVE POWER ALARM FUNCTION 0 In the occurrence of alarm stepping continues When the alarm source is removed the alarm will disappea...

Page 26: ...VAR REACTIVE POWER ALARM DELAY For any kVAr alarm the limit must be overridden during this period 0 sec 30 sec 200 sec REACTIVE POWER ALARM FUNCTION 0 In the occurrence of alarm stepping continues Whe...

Page 27: ...WER FACTOR ALARM DELAY For any low power factor alarm the limit must be overridden during this period 0 sec 30 sec 200 sec LOW POWER FACTOR ALARM FUNCTION 0 In the occurrence of alarm stepping continu...

Page 28: ...UNCTION 0 In the occurrence of alarm stepping continues When the alarm source is removed the alarm will disappear after the delay defined by the parameter MutE 1 In the occurrence of alarm stepping st...

Page 29: ...n the occurrence of alarm stepping continues When the alarm source is removed the alarm will disappear after the delay defined by the parameter MutE 1 In the occurrence of alarm stepping stops When th...

Page 30: ...n the occurrence of alarm stepping continues When the alarm source is removed the alarm will disappear after the delay defined by the parameter MutE 1 In the occurrence of alarm stepping stops When th...

Page 31: ...mit must be overridden during this period 0 sec 30 sec 200 sec CAPACITOR VALUE LOSS ALARM FUNCTION 0 In the occurrence of alarm stepping continues When the alarm source is removed the alarm will disap...

Page 32: ...age alarm 7 High frequency alarm 8 Low frequency alarm 9 Excess kW alarm 10 Low kW alarm 11 kVAr overregulation capacitive load 12 kVArunder regulation inductive load 13 cos overregulation capacitive...

Page 33: ...se 0 Pulse is always given 1 Pulse is given when the generator is off 2 Pulse is given when the generator is on 0 0 2 ALARM RESET DELAY When the alarm source is removed any non latching alarm will dis...

Page 34: ...A per phase Current burden 1VA per phase Relay Outputs 5A 250VAC Operating Temperature 20 C to 70 C 4 to 158 F Maximum humidity 95 non condensing Degree of Protection IP 54 Front Panel IP 30 Back pane...

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