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RNPP-302

RNPP-302
2-3 days

Three-phase voltage and phase monitoring relay designed to protect of three-phase loads against major type of mains faults, as:

  • RMS voltage reaching beyond admissible thresolds
  • phase sequence order violation and phase coincidence
  • violation of the mains voltage phase completeness and symmetry

The device performs monitoring the main circuit  parameters and de-energizes load when the parameters fall beyond specified boundaries. The three-digit, seven segment display on the relay fron panel allows to:

  • continously indicate the actual circuit voltage
  • indicate type of occuring fault
  • view (visualize) settings of modes and parameters

The menu allows the user to make the following settings:

  • mode of voltage indication for each phase
  • mode of the relay reacio to the digital symbol for remote de-energizing
  • type of relay
  • method for setting the voltage deviation
  • turn on/off the phase imbalance monitoring
  • turn on /off the phase sequence monitoring
  • type of measured voltage
  • the maximum allowable voltage tripping thresold
  • the minimum allowable voltage tripping thresold
  • allowable phase imbalance thresold
  • automatic re-closure delay time
  • min voltage de-energize tripping delay time
  • max voltage de-energize tripping delay time
  • phase imbalance tripping delay time
  • phase loss tripping delay time
  • delay time for tripping upon digital input fault alarm signal

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Tags: rnpp-302 , monitoring , relays novatek-electro

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