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Application
The relay type NM10 can be used for protection of medium size
motors in MV and LV systems powered through lines of:
- any length in solidly or low resistance grounded systems,
- small length in ungrounded or Petersen coil and/or high
resistance grounded systems.
Protective
functions
37 - Undercurrent
46 - Negative-sequence overcurrent
49 - Thermal image
50 - Phase overcurrent
51LR - Locked rotor
50N/51N - Residual overcurrent
66 - Restart inhibit
BF - Circuit breaker failure
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