Balanced 3-Phase Reactive Power Compensation because of 3-Phase Balanced Connected Power Capacitor Bank Steps.
Operating Auxiliary and Measurement voltage: 100V to 500V AC Line-to-Line value, and Supply frequency Nominal as 50 (+/-3) Hz or 60 (+/-3) Hz.
Active Power Measurements with 1.0 Class accuracy, Reactive Power Measurement with 2.0 Class accuracy for the recommended Measurement Voltage & Load Current phase inputs, as per the line diagram at the rear side of APFC controller.
Single-CT Load Current Input (from CT secondary): 1A or 5A, selectable at the rear terminal block.
Output Stages: Standard Models with 4, 8, 12 or 16 Outputs, as per Order Code.
Two auxiliary outputs, “normally-open” relay contacts for external interlocking.
THD% measurements of supply voltage and current. Odd harmonics up to 15th.
In “Expert” Mode facility of Un-equal bank size selection. Including user defined bank values in kVAr.
Capacitor Bank Step Protection features like
Over / Under Voltage at measurement input.
Harmonic overload, both for voltage and current
Over-Temperature inside the APFC-03 Controller Unit. o Over / Under AC Mains Line Frequency.
DIN Standard 144 x 144 mm Plastic Cabinet for Panel-door flush-mounting. Rear side dimensions as 137 x 137 mm
with recommended Panel door cut-out as
138 x 138 mm. Max. Depth of 76 mm on rear side of panel mounting door.
Three-Sides Closed Screw Terminals on the rear side suitable for fork type lugs providing easy field wiring connections.
Optional “Expert Configuration” allows Line-to-Neutral as voltage sensing input.
Use of SMPS which facilitates wide range Auxiliary Supply voltage, with externally accessible input auxiliary supply slow-blow fuse protection.
Most important and advanced feature is the “BASIC Configuration”.
Controller in Basic Configuration has the following features:
Automatic detection and usage of the optimum capacitor banks. Fully automatic capacitor bank step value setting and self-adapting.
System parameters (voltage, current, active power, reactive power, apparent power, Maximum values of these parameters, kVAr value of every bank that are connected) are displayed in terms of percentage of it’s rated 100% values.
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