Reactive Control Relay (Monitors power factor and controls capacitor steps)

 

The reactive control relay is mounted on the front door of the cubicle and monitors the incoming voltage and current from the main switchboard. Based on target power factor and actual switchboard power factor, it switches capacitor steps in or out of circuit ensuring that connection and reconnection times are met.

Reactive Controller Features:

  • Microprocessor Based
  • Digital Display of Power Factor, step Number operating and all setup information.
  • Circular switching i.e. all capacitor steps are equal duty shared.
  • Zero Voltage Tripping i.e. On mains failure, all steps are switched out and , upon mains restoration capacitors are switched in again only after the correct blocking delay
  • High resistance to faults due to mains harmonics i.e. input circuits have a band pass filter fitted
  • Alarm output and indication of
    1. Failure to achieve target power factor.
    2. Mains failure
    3. Temperature
    4. Harmonic levels (voltage and Current)
    5. Voltage and Current levels
    6. Display of Volts, Amps, Kw, KVA, KVAr, Harmonics, temperature, contactor switchings and duration of contactor operation
    7. All maximums data logged for future reference
  • Options – serial output RS485, RS232 (profiBus and ModBus )
  • Front Panel protection – IP 54