GE Multilin 750-P5-G5-D5-HI-A20-R Feeder Management Relay

Product Description

The GE Multilin 750-P5-G5-D5-HI-A20-R, also cataloged as the 750 Feeder Management Relay, operates as a dedicated hardware component for feeder protection, current measurement, control logic execution, and electrical monitoring within GE Multilin 750 series protection systems.

Hardware Specifications

GE Multilin Industrial Control Integration

The GE Multilin 750-P5-G5-D5-HI-A20-R integrates feeder protection functions through microprocessor-based signal processing and programmable control logic. The relay receives phase, ground, and sensitive ground current signals from CT circuits, then executes protection algorithms for feeder status evaluation and trip control.

The unit supports configurable digital inputs, relay outputs, and analog measurement channels. Additionally, its RS232 and RS485 communication interfaces provide connection capability with supervisory systems using Modbus RTU and DNP 3.0 protocols.

The GE Multilin 750 platform supports industrial control requirements through deterministic processing of protection signals, programmable logic execution, and firmware-managed configuration storage. Furthermore, the relay supports I/O density scaling through configurable input and output assignments for different feeder applications.

Firmware and Backplane Communication Compatibility

The 750-P5-G5-D5-HI-A20-R uses embedded firmware management for protection logic execution, measurement processing, and communication handling. The microprocessor architecture maintains synchronized acquisition of current and voltage signals while executing feeder protection functions.

Moreover, the relay architecture supports firmware flash compatibility within the Multilin 750 product family, allowing controlled updates of protection algorithms, communication functions, and configuration parameters. The internal processing system coordinates measurement channels, relay outputs, and communication tasks without external processing hardware.

Frequently Asked Questions

Q: What CT input ratings are supported by the GE Multilin 750-P5-G5-D5-HI-A20-R?
A: The relay supports 5 A secondary inputs for phase current, ground current, and sensitive ground current measurement circuits.

Q: Does the relay provide isolated analog output channels?
A: Yes. The A20 option provides eight isolated 4-20 mA analog outputs for configurable measurement and monitoring signals.

Q: Which communication protocols can be used with this feeder relay?
A: The relay supports Modbus RTU and DNP 3.0 communication through RS232 and RS485 interfaces.

Field Installation Guidelines

• Install the relay inside a suitable protection cabinet with controlled environmental conditions.
• Verify CT secondary wiring polarity before connecting phase, ground, and sensitive ground inputs.
• Use shielded signal cables for low-level measurement circuits and terminate cable shields according to site grounding practices.
• Separate communication wiring from high-voltage power cables to reduce electromagnetic interference.
• Confirm auxiliary control power voltage matches the HI supply range before energizing the relay.
• Configure relay settings through the front panel interface or communication network before placing the feeder protection circuit into service.
• Verify trip outputs, alarm contacts, and digital input states during commissioning tests.

Other Attributes

• Series: GE Multilin 350 Feeder
• Country of Origin: USA
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of The GE General Electric Mark VI 

Our Competitive Brands

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