A

UTOMATICPOWERFACTORCONTROLLERS

17

P

AGE

17-2

D

ESCRIPTION

DCRKDCRJDCRJ12F

DCRK SERIES Front plate

•Digital programming•5 or 7 step configuration in 96x96mm housing •8 or 12 step configuration in 144x144mmhousing•Capacitor overload protection •Internal panel temperature sensor •TTL/RS232 programming interface •Automatic set-up function •Configurable alarms.

3-digit display â—â—â—

Microprocessor supervision and controlAccurate current evaluation with RMS readingsAutomatic rational adjustment Versionswith 5, 7, 8 or 12 steps;one with static outputsUse in co-generation systems Communication serial interfaces ASCII and Modbus

4-digit display supplement â—â— 4 operation keys â—â—â— 1 function key â—â—
OGIC 7 LED indicators for main functions and measures â— 14 LED indicators for main functions and measures â—â—
-L Control - Functions Automatic recognition of current flow â—â—â— 4-quadrant operation â—â—â— Independent voltage input â—â— Three-phase voltage control â—â— Medium-voltage usage â—â—
LANET ® Phase-Neutral connection in 3-phase systems â—â—

-RTUcommunication protocols.

P Programmable input as functional â—â— or remote temperature sensor Keypad lock â—â—â— TTL/RS232 communication interface â—

Automatic power factor controllers

S

.P

AGE RS232 communication interface â—â—

DCRK series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-2

Isolated RS485 communication interface â—â—

DCRJ series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-3

P

AGE

17-3

Automatic set-up function (adjustable) â—â— Easy current transformer setting function â—â—â— DCRJ SERIES

•Digital programming •8 or 12 step configurationin 144x144mmhousing•Dual displays •Independent voltage measure input •Capacitor overload protection •Internal-external panel temperature sensor •RS232 programming and supervision interface •RS485 supervision interface •Voltage and current harmonics measures •Event log •Automatic set-up function (adjustable) •Configurable alarms •Suitable for medium voltage systems.

Set-up and automatic panel test software â—â— Remote supervision software â—â— Real time clock with back-up battery â—â— Current and voltage waveform captures, â—â— related to harmonic events Events logging such as: alarms, power ON, â—â— power OFF, set-up changes, etc. Measures Instantaneous displacement power factor (cos Ï• ) â—â—â— Instantaneous and average weekly power factor â—â—â— Voltage and current â—â—â— Reactive power to reach set-point value â—â—â— Total reactive power â—â—â— Capacitor overload â—â—â— Electric panel temperature â—â—â— Maximum voltage and current value â—â—â— Maximum capacitor overload value â—â—â— Maximum panel temperature value â—â—â— Maximum capacitor temperature value â—â— Active and apparent power â—â— Current and voltage harmonic analysis â—â— Current and voltage harmonic waveform â—â— logged at overload eventsStep “var” value â—â— Number of switching measures per step â—â—

P

AGE

17-3

Protection functions Voltage too high and too low â—â—â— DCRJF TYPE (STATIC OUTPUTS) Current too high and too low â—â—â—

•Digital programming •11 step + 1 alarm configuration in 144x144mmhousing•Dual displays •Independent voltage measure input •Capacitor overload protection •Internal-external panel temperature sensor •RS232 programming and supervision interface •Voltage and current harmonics measures •Event log •Configurable alarms.

Over compensation (capacitors manufacturer disconnected â—â—â— and cos Ï• higher than set-point)Under compensation (capacitors connected â—â—â— and cos Ï• lower than set-point)Capacitor overload â—â—â— Capacitor overload on all 3 phases â—â— Over temperature â—â—â— No-voltage release protection â—â—â— Capacitor bank failure â—â— Over maximum harmonic distortion level limit â—â— Programmable alarm properties â—â—â— (enable, trip delay, relay energising, etc.)