Intelligent Power Factor Correction Controller

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Products Code : iPFC

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Description

Features:

  • Three phase sensing.
  • Intelligent power factor controlling on the capacitor bank switching history (no. of operation, ON time), improves capacitor lifespan.
  • 6 or 8 or 12 switching relay O/Ps.
  • Automatic or manual control (manual control with power backup option).

User programmable:

  • STAR/DELTA
  • Lead & Lag times
  • PT & CT ratios
  • CT secondary
  • Minimum switch ON time (4-999 sec.)
  • Minimum discharge time (4-999 sec.)
  • Minimum capacitor ON time (4-999 sec.)
  • Minimum sensing current for controlling operation 100 to 500mA
  • User programmable capacitor value
  • Fault detection (over/under compensation, over/under voltage & current, over harmonics for voltage & current.
  • Displays VLL, VLN, A(avg & phase wise), Hz, W, VA, PF and PF(avg), VAR(total & phase wise), Wh.
  • 4 quadrant operations.
  • RS485 communication interface (optional).                                                                                                                        

Technical Specifications:

Accuracy

Class 1.0 (default), Class 0.5 (optional on request)

Sensing/measurement

True RMS, 1 sec. update time, 4 quadrant power & energy

Input Voltage

4 voltage I/Ps (VR, VY, VB, VN) programmable 110 or 415VLL Nominal (range 80-500VLL) primary programmable up to 999kV. Burden: 0.2VA max. per phase

Input Frequency

45-65Hz

Input Current

3 I/P currents (AR, AY, AB) 50mA-6A (field configurable 1A or 5A), primary programmable up to 99kA. Overload: 10A max. continuous, 50A max. for 3 sec. burden: 0.2VA max. per phase

Aux. Supply

Control power: 180-300V AC/DC 40-70Hz

Burden: 10VA max.

Display Resolution

1 row, 6 digits, 10mm

CT/PR ratio max.

2000MVA programmable

Communication

Master to PC

RS485 serial channel connection, industry standard MODBUS RTU protocol (RS232 optional)

Baud rate: 4800 to 19200bps (preferred 9600bps)

Isolation: 2000V AC isolation for 1 minute between communication and other circuits

Contact Rating

SPST, 2A @ 240V

Applications:

  • In all Incomers.
  • Fixed power factor corrections individual (eg. motors, transformers, lighting)
  • Group fixed power factor correction (several equipmentsconnected in a group).
  • Harmonics trap applications (eg. UPS, VFDs, converters, etc.).

Advantages:

  • Three phase sensing gives accurate measurement of PF.
  • Fault detection (over/under compensation, over/under voltage & current, over harmonics for voltage & current.
  • Automatic or manual control (manual control with power backup option).
  • Increase capacitor’s life – capacitor switching based on history – ON time/no. of switching.

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