NM10

Motor protection

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

FUNCTIONS


STANDARD PROTECTIVE & CONTROL ELEMENTS

  • Under Current - 37
  • Negative sequence overcurrent - 46
  • Thermal Image Motor/Generator - 49MG
  • Phase overcurrent side H and side L - 50/51
  • Maximum Residual Overcurrent - 50N/51N
  • Locked Rotor - PMSS - F51Rn
  • Maximum number of startings (Restart inhibition) - 66
  • Breaker Failure - BF
  • CT Supervision - 74CT
  • Trip Circuit Supervision - 74TCS

SW PACK OPTIONAL CONFIGURATION

  • Thermal with Pt100 Probes - 26
HW PACK OPTIONAL CONFIGURATION

DOWNLOADS

NM10 Manual