Numeric Motor Protection Relay for LV Motors : mPRO-90

The mPRO-90 protective relay is an advanced current-based numeric relay that provides multi-protection and monitoring.
The relay offers reliable protection for LV and MV motors which are either operated via power contractors or power circuit breakers.

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Feature of mPRO-90

  • Small & compact
  • User selectable external CTs(04 types)
  • 7 Segment Display (4 x 1 row)
  • 2 Trip Relay (Fail Safe operation)
PROTECTION
  • Over-Load
  • Short Circuit
  • Under current
  • Unbalance
  • Phase Reversal
  • Locked Rotor
  • Earth Fault (Residual / ZCT)
  • Stall
  • Phase Loss
METERING & MONITORING
  • 3 Phase RMS Current
  • Earth Current Residual (ZCT)
  • Thermal content (%)
  • Unbalance (%)
RECORD
  • Fault Record
  • Accumulated Motor Run Time

APPLICATION:

Every motor failure causes a production stop and costs for service. A cable cut, phase failure, short circuit, or overload can destroy the motor or pose danger to the whole production line and to the people who work there.
This is the reason why reliable motor protection is very important and thus mPRO works as a safeguard. It can be used in the following areas :

  • Motor Control Center (MCC) application.
  • Integrated Process & Electrical Control with Protection.
  • Can be used in inverter control circuits (20-200 Hz).

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