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GE SR750-P1-G1-D1-HI-A20-R Multilin Feeder Management Relay

Name: GE SR750-P1-G1-D1-HI-A20-R Multilin Feeder Management Relay | Advanced Protection
Brand: GE
SKU: SR750-P1-G1-D1-HI-A20-R
Price: 100.00 CNY
Availability: InStock

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SKU: SR750-P1-G1-D1-HI-A20-R PLC & Industrial Automation Modules GE

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SKUSR750-P1-G1-D1-HI-A20-R
CategoryPLC & Industrial Automation Modules
BrandGE
SupportAvailability, lead time, condition, and shipping coordination

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GE SR750-P1-G1-D1-HI-A20-R Multilin Feeder Management Relay

The GE SR750 Multilin Feeder Management Relay represents the pinnacle of distribution feeder protection technology, delivering comprehensive monitoring, control, and protection capabilities for medium-voltage electrical distribution systems. Engineered for utilities, industrial facilities, and commercial power distribution networks, this advanced relay combines robust overcurrent protection with sophisticated metering and communication features.

Technical Specifications

Parameter	Specification
Model Number	SR750-P1-G1-D1-HI-A20-R
Voltage Rating	100-240V AC/DC
Current Inputs	1A or 5A nominal
Frequency	50/60 Hz
Digital Inputs	8 configurable
Output Relays	20 Form-A contacts
Communication Ports	RS485, Ethernet, DNP3.0
Display	40-character LCD with backlight
Operating Temperature	-40 °C to +70 °C
Compliance	IEC 61850, IEEE C37.90, ANSI

Key Protection Functions

The GE SR750 Multilin relay provides multi-layered protection including phase and ground overcurrent (50/51, 50N/51N), directional overcurrent (67/67N), voltage protection (27/59), frequency protection (81O/U), breaker failure protection (50BF), and thermal overload protection (49). This comprehensive suite ensures maximum system reliability and equipment longevity.

Application Scenarios

Utility Distribution Networks: The SR750 excels in protecting distribution feeders, reclosers, and sectionalizers in utility substations. Its advanced metering capabilities integrate seamlessly with SCADA systems, similar to the GE F650 Digital Feeder Protection Relay for comprehensive bay control.

Industrial Power Distribution: Manufacturing facilities benefit from the relay’s precise load monitoring and fault detection. When paired with GE SR469 Motor Protection Relay for motor circuits and GE T60 Transformer Protection Relay for transformer protection, it creates a complete protection ecosystem.

Renewable Energy Integration: Solar farms and wind installations utilize the SR750 for feeder protection and grid synchronization. The relay’s directional elements work in conjunction with GE MIV II Voltage/Frequency Relay to ensure stable renewable energy integration.

Advanced Solutions

SCADA Integration: Built-in DNP3.0, Modbus, and IEC 61850 protocols enable seamless integration with supervisory control systems. The Ethernet port supports remote monitoring and configuration, reducing site visits and operational costs.

Event Analysis: High-resolution oscillography captures up to 64 analog and digital channels at 128 samples per cycle, providing detailed fault analysis. This data integrates with GE PQMII Power Quality Meter for comprehensive power system diagnostics.

Modular Expansion: The Universal Relay platform allows expansion with additional I/O modules. Compatible modules include GE UR6NH Digital I/O Module, GE UR8AH CT/VT Module, and GE UR1HH Power Supply Module for enhanced functionality.

Frequently Asked Questions

Q: Is the SR750 compatible with existing GE Multilin systems?
A: Yes, the SR750 integrates seamlessly with other GE Multilin devices including GE UR9AH CPU modules and GE C30 Controller System for complete substation automation.

Q: What communication protocols are supported?
A: The relay supports DNP3.0, Modbus RTU/TCP, IEC 61850, and proprietary GE protocols for maximum flexibility in system integration.

Q: Can the SR750 perform directional protection?
A: Absolutely. The relay includes sophisticated directional overcurrent elements (67/67N) for applications requiring power flow discrimination, similar to capabilities found in the GE MIF II Digital Feeder Relay.

Q: What is the typical installation time?
A: With pre-configured settings and comprehensive documentation, typical installation and commissioning takes 4-6 hours for experienced technicians.

Q: Does it support arc flash detection?
A: While not a primary arc flash relay, the SR750’s high-speed overcurrent elements provide rapid fault clearing. For dedicated arc flash protection, consider the GE ABU10A Auxiliary Relay Unit as a complementary solution.

Warranty & Support

Every GE SR750 Multilin Feeder Management Relay includes a comprehensive 12-month warranty covering manufacturing defects and component failures. Our technical support team provides configuration assistance, troubleshooting guidance, and firmware updates throughout the product lifecycle.

Why Choose NINERMAS?

We specialize in premium industrial automation components with genuine GE Multilin products, competitive pricing, and expert technical support. Our inventory includes the complete GE Multilin portfolio from basic protection relays to advanced substation automation systems.