Low Voltage Automatic Power Factor Controller

Low Voltage Automatic Power Factor Controller

Automatic Power Factor Controller

Automatic Power Factor Controller

Technical Specification:

  • 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.
  • Relay Output N.O. contact rating: Max: 250Vac, 0.5Amp, resistive / inductive load, continuous.
  • Operating Temperature Range: 0 to +55° C.
  • Storage Temperature Range: 0 to +65° C.
  • Relative Humidity Range: 10% to 95% (Non-condensing)
  • Un-packed Net Weight of the Unit: 650 grams.
  • Power Factor Controller for universal application, requires no settings and is self- configuring in basic mode of functioning.
  • Advanced Microcontroller based logic for measurements, monitoring, analysis and control. It is suitable for balanced 3-Phase Compensation by capacitor switching.
  • 16 Character, 2 Lines, alpha-numeric, dot matrix LCD display with LED back-light.
  • 7 keys, tactile keypad for user interaction.
  • Front panel flashing LED indication for PF Controller healthy (running) status.
  • Phase-to-Phase input voltage measurement with over-voltage transients protection.
  • Single-Phase load current CT secondary input, field selectable for 1Amp or 5Amp range.
    8. 4 Models, as per Order Code, suitable for 4, 8, 12 or 16 Capacitor Banks control.
  • Independent, fast-blow fuse protection for control outputs relay commands, for banks 1 to 8 and 9 to 16.
  • Potential free, “normally-open” relay contact outputs for external contactor switching control.
  • 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.