NR Electric synchronization protection relays

1 company | 8 products
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voltage protection relay
voltage protection relay
PCS-902S

... phase-to-ground distance protection (21L)

  • Pilot distance and pilot directional earth-fault protection (85)
  • Power swing blocking/releasing logic (PSBR)
  • Multi-stage phase and earth-fault overcurrent
  • ...

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    NR Electric
    earth-leakage protection relay
    earth-leakage protection relay
    PCS-931S

    ... phase-to-ground distance protection (21L)

  • DPFC and steady-state current differential protection (87L)
  • Neutral current differential protection (87L)
  • Pilot distance and pilot directional
  • ...

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    NR Electric
    synchronization protection relay
    synchronization protection relay
    PCS-915IC

    ... section protection

  • Breaker failure protection (50BF)
  • Dead zone protection (50DZ)
  • Pole disagreement protection (62PD)
  • Switch-onto-fault protection
  • ...

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    NR Electric
    over-excitation protection relay
    over-excitation protection relay
    PCS-978S

    ... phase-to-ground distance protection (21T)

  • Overexcitation protection (24)
  • Phase overcurrent protection (67P, 50/51P)
  • Earth-fault protection (67G,
  • ...

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    NR Electric
    earth-leakage protection relay
    earth-leakage protection relay
    PCS-921

    ... PCS-921 numerical relay provides comprehensive protection and control for circuit breakers, including breaker-failure protection, pole-discrepancy and dead-zone protection, phase/negative-sequence ...

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    over-voltage protection relay
    over-voltage protection relay
    PCS-985TI

    ... Phase overcurrent protection (50/51P)

  • Phase overcurrent alarm elements (51PAlm)
  • Ground overcurrent protection (50/51G)
  • Phase overvoltage protection
  • ...

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    NR Electric
    current protection relay
    current protection relay
    PCS-9613

    ... zero-sequence overcurrent protection (50G/51G/67G)

  • Negative-sequence overcurrent protection (46)
  • Broken-conductor detection using I2/I1 ratio (46BC)
  • Breaker-failure
  • ...

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    NR Electric
    distance protection relay
    distance protection relay
    PCS-9691

    ... 61850-8-1 MMS.

    Protection functions

    • Six-stage phase overcurrent protection (50/51P)
    • Four-stage directional phase overcurrent protection
    ...

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    NR Electric
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