product Details
The 750-P5-G5-S5-HI-A20-R-E-H is one of several digital relays from General Electric's 750/760 Feeder Protection System line available here at AX Control. These units are designed to make electrical connections to external equipment while providing protection and control of distribution feeders. Units like this one are designed for mounting as a solitary unit or they can be mounted in conjunction with other SR series relay units using a standard 19-inch panel rack.
The 750-P5-G5-S5-HI-A20-R-E-H has 5 amp phase current inputs. It is designed with 5 amp zero-sequence current inputs and 5 amp sensitive ground current inputs. There are eight 4-20 mA analog outputs located on the unit. The 750-P5-G5-S5-HI-A20-R-E-H uses an 88-300 VDC 70-265 VAC @48-62 Hz power supply. It is rated for use within harsh chemical environments.
750-P5-G5-S5-HI-A20-R-E-H Technical Specifications
| # of Setpoint Groups | 4 |
| Ambient Storage Temperature Range | -40°F to +176°F |
| Communications | RS232, RS422, RS485 ports |
| Operating Temperature Range | -40°F to +140°F |
| Pollution Degree | II |
Functional Characteristics
Overcurrent Protection: This feature detects abnormal current flows and instantly disconnects the power, preventing damage to the feeder and downstream equipment.- Ground Fault Protection: The relay identifies faults due to unintended paths to the ground, which can cause significant damage to both feeder circuits and connected devices.
- Phase Imbalance Detection: The relay ensures that feeder circuits are balanced, detecting phase imbalances that could lead to inefficient power delivery or damage to equipment.
- Load Shedding: In cases of system overload, the relay can trigger load shedding mechanisms to reduce strain on the feeder system and ensure critical loads are prioritized.
- Real-Time Diagnostics: Through remote monitoring, operators receive immediate feedback on feeder health and can adjust settings or take corrective actions before issues escalate.
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