Features:
- Uses 5 A phase and zero-sequence ground-current inputs
- Accepts 88–300 VDC or 70–265 VAC control power
- Pairs an enhanced display with a red breaker-closed LED
The P5 and G5 ordering positions identify 5 A secondary inputs for both phase and ground-current measurement.
The HI power-supply option accommodates the documented high-range DC or AC control sources used in protection panels.
The E display option provides a larger LCD and improved keypad, while the R code assigns red indication to the breaker-closed state.
The General Electric 750-P5-G5-HI-A1-R-E Feeder Protection Relay may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
General Electric 750-P5-G5-HI-A1-R-E Feeder Protection Relay Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Fault Detection and Protection
- Phase faults: Time and instantaneous overcurrent elements supervise the feeder phase currents.
- Ground faults: Dedicated zero-sequence input functions support sensitive ground-current protection.
- Breaker failure: Breaker-failure logic can issue backup action when current persists after a trip command.
- Thermal supervision: Thermal overload protection tracks feeder heating conditions.
Serial and Network Integration
- Front access: The front RS232 port supports local connection for setup and service work.
- Rear channels: Two rear serial ports use RS485 or RS422 electrical interfaces.
- Protocols: Modbus RTU and DNP 3.0 support communication with compatible supervisory equipment.
- Serial rate: Configurable serial operation covers 300 to 19,200 baud.
Operational Evidence
- Event reports: Stored event information helps reconstruct relay and breaker activity.
- Waveform capture: Oscillography records electrical behavior surrounding selected triggers.
- Data logger: Logged quantities support trend review over a configured interval.
- Demand values: Metering functions track feeder loading for operational assessment.
Feeder Protection Uses
- Primary feeders: Applies protection and monitoring to industrial or utility feeder circuits.
- Breaker control: Coordinates trip, close and status functions around the controlled feeder breaker.
- Legacy indication: Eight 0–1 mA outputs can feed compatible meters or recorders.
- Supervisory links: Serial protocols connect relay information to compatible automation systems.