Model GFCT | Ground Fault Detectors

Models: GFCT with Relay Output Contacts | 4NO4 Outdoor | 5NO5 Outdoor

Description
Three models are designed to detect ground fault current on ground leads. Model GFCT has a normal output voltage representing the fault plus relay contact use for remote indications. Two other Models 4NO4 and 5NO5, provide outputs in volts and 5A current. | The Model GFCT Ground Fault Indicator & Relay unit is a split core transformer system illustrated in the drawing tab. The device combines a current transformer, fault level circuitry, dual relays and a reset feature. The unit is totally water proof according to IP-68 including the external control cable. The relays will close for any fault current impulse starting at a threshold of about 100A and will also close for any current as high as 7500A ( tested for 3 cycles). Two relay Form C 2A rated contacts are provide for external control of indicators such as LEDs or horns. The GFIR is designed to be mounted outdoors inside switch yards or other distribution centers. External reset control wire are provided to reset the relays. | Model 4NO4 is a split outdoor CT for designed to be mounted on power polls. It can be provided with any millivolt output up to 1000mV. | Model 5NO5 is a custom made outdoor CT with 1A ot 5A output at full scale input current.

Specifications
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