735-5-5-HI-485 GE Feeder Protection Relay

GE 735-5-5-HI-485 SR-735-5-5-HI-485 735 Series Feeder Protection Relays

GE 735-5-5-HI-485 SR-735-5-5-HI-485 735 Series Feeder Protection Relays

Availability: 10 left in stock

GE 735-5-5-HI-485 Multilin Feeder Protection Relay The GE 735-5-5-HI-485, also cataloged as the SR-735-5-5-HI-485 Feeder Protection Relay, operates as a...

SKU: 735-5-5-HI-485

Manufacturer: GE Fanuc
Product No.: 735-5-5-HI-485
Product Type: Feeder Protection Relays
Product Origin: USA
Payment:T/T, Western Union
Weight: 5350g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

GE 735-5-5-HI-485 Multilin Feeder Protection Relay

The GE 735-5-5-HI-485, also cataloged as the SR-735-5-5-HI-485 Feeder Protection Relay, operates as a dedicated hardware component for phase and ground overcurrent fault detection within substation switchgear platforms. The relay processes 5 A nominal Phase and Ground CT secondary inputs to execute high-speed trip outputs (50/50G instant and 51/51G time-overcurrent). Integrated RS485 serial communication transmits real-time metering and event records over Modbus RTU protocols to central control networks.

Hardware Specifications

Parameter	Specification
Model	735-5-5-HI-485
Brand	GE Multilin (General Electric)
Origin	USA
Weight	5.35 kg
Dimensions	Standard 735 Series panel-mount footprint
Operating Temp	-40 to +70 deg C
Power Consumption	HI Range: 90-300 VDC or 70-265 VAC (48-62 Hz)
Phase CT Input	5 A nominal secondary
Ground CT Input	5 A nominal secondary
Protection Functions	Phase Overcurrent (50/51), Ground Overcurrent (50G/51G)
Output Contact Rating	Form-C contacts rated 10 A at 250 VAC / 30 VDC (Resistive)
Serial Interface	RS485 2-wire serial port
Protocol Support	Modbus RTU, GE Proprietary (up to 19.2 kbps baud rate)
Metering / Logging	Phase Current, Ground Current, Peak Demand, Sequence of Events

Ethernet/IP Deterministic Networks & Firmware Flash Compatibility

The GE 735-5-5-HI-485 communicates across industrial control architectures using its dedicated 2-wire RS485 port linked to upstream network bridges and sub-station controllers. Maintained firmware flash compatibility enables deterministic processing of event sequences, trip triggers, and continuous metering data feeds. Internal microcontroller registers isolate protective algorithm execution from communication polling overhead, ensuring fast response times during fault conditions while maintaining steady transmission of telemetry parameters over Modbus RTU networks.

Frequently Asked Questions

Q: What power supply range is required for the "HI" option on this relay?

A: The "HI" suffix indicates an auxiliary power supply designed to accept 90 to 300 VDC or 70 to 265 VAC (48-62 Hz), allowing operation from standard station battery banks or station auxiliary AC buses.

Q: How are the output contacts wired for trip execution?

A: The relay provides programmable Form-C output contacts containing both normally open (NO) and normally closed (NC) terminals rated for 10 A at 250 VAC or 30 VDC. Trip output circuits must connect through the NO contacts configured via internal firmware mapping.

Field Installation Guidelines

Mount the chassis into a cutout panel within a switchgear cabinet using the panel-mount hardware. Ensure the installation location maintains an ambient operating temperature strictly between -40 deg C and +70 deg C, with adequate ventilation around the outer housing.

Connect the 5 A Phase and Ground current transformer secondary leads to the terminal block using ring lugs. Tighten all CT connection screws to prevent open-circuit conditions. Route the 2-wire RS485 communication line using shielded twisted-pair cabling. Ground the cable shield at a single cabinet earth point to block high-frequency noise. Connect the main grounding lug on the relay chassis directly to the substation earth bar using a heavy-gauge copper wire before applying auxiliary power to the HI power terminals.

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