Type 150 DC

Full DataSheet and Specs:

The Type 150 DC Rate of Rise Relay is an isolated current monitor and overcurrent relay that may be used for either the positive or negative conductors in DC power distribution networks. The device is designed as a stand-alone relay or may be used in conjunction with a Type 82 automatic recloser relay. In combination with a recloser relay, it will automatically interrupt a fault and then reclose to continue service. SMC’s unique rate of rise channel detects arcing faults on systems too far removed to be detected by the instantaneous overcurent relay. The Type 150 DC Rate of Rise Relay front panel controls are calibrated in millivolts so that the relay is compatiable with any type of shunt. The built-in calibration components allow accurate fi eld calibration of feeder current settings.

FEATURES

  • Uni-Bi directional: mode indicating, field switchable
  • Draw out construction
  • Detector channel: rate of rise only
  • Calibration controls: allows preset slope, Delta I and time delay
  • Internal Power Supply operates on and autocompensates for a range of DC imputs
  • Use with any shunt
  • For use with positive & negative conduc- tors in DC Networks
  • Field Calibration

DESCRIPTION

The Type 150 DC Rate of Rise Relay is an isolated current monitor and overcurrent relay that may be used for either the positive or negative conductors in DC power distribution networks. The device is designed as a stand-alone relay or may be used in conjunction with a Type 82 automatic recloser relay. In combination with a recloser relay, it will automatically interrupt a fault and then reclose to continue service. SMC’s unique rate of rise channel detects arcing faults on systems too far removed to be detected by the instantaneous overcurrent relay. The Type 150 DC Rate of Rise Relay front panel controls are calibrated in millivolts so that the relay is compatible  with any type of shunt. The built-in calibration components allow accurate fi eld calibration of feeder current settings.