Single function protection for applications including overcurrent, voltage and frequency, differential, directional, timing and distance.

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Single Function
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Manufacturing for IBC relays have been discontinued. As an alternative, please refer to P14D.

IBC/IBCG Directional Overcurrent Relay - Legacy

Manufacturing for IBC relays have been discontinued. As an alternative, please refer to P14D.

Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.

HFC Instantaneous Overcurrent Relay - Legacy

Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.

Manufacturing for GXS has been discontinued.  As an alternative, please refer to 850 or P94V.

GXS Automatic Synchronizing Relay - Legacy

Manufacturing for GXS has been discontinued.  As an alternative, please refer to 850 or P94V.

Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.

GSY Mho Distance Relay - Legacy

Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.

The GDC is a current detecting relay with detection being made by means of voltage applied to a high impedance unit. These relays are provided with measuring elements and are used mainly for the detection of restricted ground faults in transformers and rotating synchronous and asynchronous machines.

Applications

  • Transformer circulating current protection circuits

GDC Current Detecting Relay (Discontinued)

The GDC is a current detecting relay with detection being made by means of voltage applied to a high impedance unit. These relays are provided with measuring elements and are used mainly for the detection of restricted ground faults in transformers and rotating synchronous and asynchronous machines.

Applications

  • Transformer circulating current protection circuits

GCX51 is the type designation for a family of single phase, three-zone phase packaged relays. The first - and second-zone distance measurements are made by a unit having a reactance of ohm type characteristic and the third zone has a directional mho characteristic. 

GCY51 is the type designation for a family of single phase two-zone and three-zone mho phase distance relays for transmission line protection.

GCY Phase Packaged Directional-distance relay

GCX51 is the type designation for a family of single phase, three-zone phase packaged relays. The first - and second-zone distance measurements are made by a unit having a reactance of ohm type characteristic and the third zone has a directional mho characteristic. 

GCY51 is the type designation for a family of single phase two-zone and three-zone mho phase distance relays for transmission line protection.

Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.

GCX Phase Packaged Directional-distance Relay - Legacy

Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.

Single Phase Digital Overcurrent Protection 

DIAC/DIFC/DSFC - Legacy

Single Phase Digital Overcurrent Protection 

The relays type DAR 2000 are multiple reclose electronic relays, manufactured in modular version, designed to perform automatically the three-phase reclose of a power breaker, tripped by the action of a protection relay.

DAR Modular Reclosing Relays (Discontinued)

The relays type DAR 2000 are multiple reclose electronic relays, manufactured in modular version, designed to perform automatically the three-phase reclose of a power breaker, tripped by the action of a protection relay.

Manufacturing for CHC has been discontinued.  As an alternative, please refer to P153, P14N or

CHC Instantaneous Overcurrent - Legacy

Manufacturing for CHC has been discontinued.  As an alternative, please refer to P153, P14N or