NR Electric earth-leakage protection relays

1 company | 17 products
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over-frequency protection relay
over-frequency protection relay
PCS-902

... Pilot directional earth-fault protection (85)

  • Phase, neutral and negative-sequence overcurrent stages (50/51P, 50/51G, 50/51Q)
  • Breaker failure protection for one or two
  • ...

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    NR Electric
    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
  • ...

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    NR Electric
    thermal protection relay
    thermal protection relay
    PCS-931

    ... comprehensive protection for diverse transmission-line configurations.

    Protection and Control

    • Phase-segregated DPFC differential protection (87L) and phase/neutral current differential
    • Multi-zone
    ...

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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
    over-frequency protection relay
    over-frequency protection relay
    PCS-915SC

    ... busbar relay integrates busbar differential protection, bus coupler/section protection (overcurrent protection, switch-onto-fault protection, dead zone 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
  • ...

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    NR Electric
    earth-leakage protection relay
    earth-leakage protection relay
    PCS-9671

    ... detection

  • Phase overcurrent protection (50/51P)
  • Zero-sequence overcurrent protection (50/51G)
  • Negative-sequence overcurrent protection
  • ...

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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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    under-voltage protection relay
    under-voltage protection relay
    PCS-985B/AW

    ... voltage stator ground fault protection (64S1)

  • Generator 3rd harmonic stator ground fault protection (64S2)
  • Generator stator ground fault protection
  • ...

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    NR Electric
    earth-leakage protection relay
    earth-leakage protection relay
    PCS-985GE

    ... forward power protection (32F)

  • Overexcitation protection (24)
  • Loss of excitation protection (40G)
  • Generator phase overcurrent protection (50/51P)
  • Phase
  • ...

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    NR Electric
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