GE+SR745-W2-P5-G5-HI

Features:

Overcurrent protection: Detects and disconnects the feeder circuit breaker when the current overcurrent exceeds a set threshold and persists for a certain period of time. This prevents the cable from overheating and potential damage.
Ground fault protection: Identify and isolate ground faults (leakage of current to ground) that may cause equipment damage or electrical shocks.
Short circuit protection: A quick reaction to a short circuit, a sudden increase in current due to a direct connection between live wires. By tripping the circuit breaker, equipment damage and potential fire risk can be minimized.
Undervoltage and overvoltage protection: When the voltage on the feeder is below or above the safe operating limit, the trip can be configured to protect the connected device.
Phase sequence detection: Verify the correct sequence of phases (the order in which AC voltage peaks occur) to prevent failure or damage to three-phase motors or other sensitive equipment.

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Description


Product Name:

GE SR745-W2-P5-G5-HI feeder protection relay

Product Description:

The GE+SR745-W2-P5-G5-HI module appears to be a feeder protection relay used in power distribution systems. Its main function is to protect the feeder (cable or line) from various faults and anomalies that can damage equipment or interrupt power supply.

Key features (based on available information):

Microprocessor-based design: The “HI” in the code may indicate a microprocessor-based design that supports faster response times, more complex protection algorithms, and potentially user-configurable Settings.
Communication capability: The module may have a communication port connected to a supervisory control and Data acquisition (SCADA) system. This allows for remote monitoring, data logging, and potential configuration changes.

Parameters and specifications:

Rated voltage: The maximum voltage that the relay can withstand (e.g. 600V, 13.8kV).
Rated current: The maximum current that the relay can measure (such as 100A, 4000A).
Overcurrent and ground fault collection setting: The adjustable current threshold triggers the protection action.
Delay setting: Programmable delay in coordination with other relays in the system.
Communication protocols: Protocols that support data exchange with SCADA systems (e.g. Modbus, DNP3).

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