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Numerical Protection Relay

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Siemens 7sr110 Over Current And Feeder Protection Numerical Relay

Siemens 7sr110 Over Current And Feeder Protection Numerical Relay
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Product Details:
Current Rating5A
Model Name/NumberSiemens Reyrolle 7SR110 Overcurrent and feeder protection numerical relay
Usage/ApplicationOvercurrent and Feeder protection numerical relay
MountingWall Mounting,Panel mounting
Country of OriginMade in India

Protection functions

  • Undercurrent (37)
  • Broken conductor (46BC)
  • Negative phase sequence overcurrent (46NPS)
  • Thermal overload (49)
  • Overcurrent (50, 51)
  • Earth fault (50G, 50N, 50SEF, 51G, 51N, 51SEF)
  • High impedance REF (64H)

Supervision functions

  • CT supervision (60CTS)
  • Trip & close circuit supervision (74T/CCS)
  • Inrush detector (81HBL2)
  • Circuit breaker Fail (50BF)

Control functions

  • Auto reclose (79)

Monitoring functions

  • Primary/secondary current phases and earth 
  • Historical demand record
  • Positive phase sequence (PPS)  current
  • Negative phase sequence (NPS)  current
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