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Help CenterGE 760-P5-G5-S5-HI-A20-R-E 750/760 Feeder Management Relay
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Ⅰ. Overview
GE 760-P5-G5-S5-HI-A20-R-E is a high-performance microprocessor-based feeder management relay belonging to the Multilin 750/760 series. It is engineered for protection, control, operation and maintenance management of power distribution systems, and meets feeder protection requirements in substations, industrial plants, commercial buildings and other power distribution scenarios. As a core component, it ensures the safe and stable operation of distribution systems.
Integrated with comprehensive feeder protection, high-precision parameter monitoring, flexible control and intelligent diagnosis functions based on advanced microprocessor technology, it provides multiple protection features including overcurrent, ground fault, phase sequence reversal, directional protection, undercurrent, overvoltage and undervoltage to effectively prevent various feeder faults. It adopts 5A phase current input, 5A residual current input and 5A sensitive ground current input, and is equipped with 8-channel 4-20mA analog outputs. Supporting data recording, waveform capture, actual value metering and other monitoring functions, it is compatible with multiple industrial communication protocols for seamless connection with upper-level control systems, facilitating remote monitoring and maintenance.
Featuring a rugged industrial structure, an enhanced red LED display and operation keys, the relay delivers easy installation, commissioning and flexible configuration. It is widely used for feeder protection, transformer backup protection and transmission line backup protection in various distribution systems. It provides reliable full-lifecycle support for distribution equipment and ensures continuous and stable power distribution.
Ⅱ. Product Parameters
| Parameter Name | Specifications |
|---|---|
| Model | 760-P5-G5-S5-HI-A20-R-E |
| Manufacturer | General Electric |
| Product Series | GE Multilin 750/760 Series Feeder Management Relay |
| Product Type | Microprocessor-based industrial feeder management relay, applied for protection, control and maintenance of power distribution systems; available as backup protection for transformers and transmission lines |
| Compatible Devices | Adaptable to various power distribution systems and substation equipment; compatible with SCADA, DCS and other industrial control systems; connectable to circuit breakers, contactors and other field devices; supports connection with GE Multilin EnerVista 760 software |
| Power Supply | 88–300 VDC, 70–265 VAC @ 48–62 Hz; wide voltage adaptation for stable operation in complex grid environments |
| Communication | Multiple industrial communication options; partial models with 10Base-T Ethernet; parameter configuration, data viewing and trend analysis via GE EnerVista 760 software; remote interactive access supported |
| Current Input | 5A phase current, 5A residual current, 5A sensitive ground current; diversified current monitoring and protection options for diverse distribution demands |
| Analog Output | 8-channel 4-20mA analog output for convenient integration with monitoring and control systems, realizing accurate parameter transmission and feedback |
| Protection Functions | Full-range feeder protection: overcurrent, ground fault, phase sequence reversal, directional, undercurrent, overvoltage and undervoltage protection against distribution system faults |
| Control Functions | Auto-reclosing, load shedding, circuit breaker control, alarm and indication; enables flexible feeder control and emergency fault handling |
| Monitoring & Diagnosis | Data recording, oscilloscope waveform capture and actual power metering; fault data storage with local panel and software query to support rapid troubleshooting |
| Physical Characteristics | Equipped with enhanced red LED display, operation keys and programming ports; modular cabinet-mounted design for convenient wiring, commissioning and flexible installation |
| Protection & Anti-Interference | Industrial-grade enclosure design with excellent EMC immunity, vibration resistance and shock resistance; stable operation against complex on-site electromagnetic interference and load fluctuations |
| Environmental Ratings | Operating Temperature: -20℃ ~ 60℃; Storage Temperature: -40℃ ~ 85℃; Humidity: 0%–95% non-condensing; dustproof and moistureproof for harsh industrial distribution environments |
| Core Functions | Full feeder protection, current & voltage monitoring, analog output, fault recording & diagnosis, auto-reclosing & load shedding control, multi-mode communication, remote maintenance, transformer and transmission line backup protection |
Ⅲ. Technical Features
Flexible and Accurate Current Monitoring: Adopts 5A phase current, residual current and sensitive ground current inputs to fully cover feeder monitoring requirements. It supplies accurate data for precise protection tripping, supports flexible configuration for different distribution scenarios, and guarantees comprehensive and high-precision current measurement.
Full-Coverage Feeder Protection: Integrates core protection logic for overcurrent, ground fault, phase sequence reversal and directional overload. It responds rapidly to system faults to limit fault expansion and secure distribution equipment. It can also serve as backup protection for transformers and overhead lines to enhance overall power system safety.
Powerful Analog Integration Capability: Built-in 8 isolated 4-20mA analog output channels for seamless docking with third-party monitoring and control devices. It realizes real-time transmission of key electrical parameters without additional signal converters, simplifying system construction and improving intelligent monitoring efficiency.
Advanced Monitoring and Fault Diagnosis: Supports real-time operating data collection, transient waveform capture and energy metering. Historical fault records and trend data can be checked and exported via the local display or EnerVista 760 software, providing solid data support for fault analysis and predictive maintenance.
User-Friendly Operation & Maintenance: The high-definition red LED display and physical keys enable intuitive on-site viewing of operating status, alarm information and electrical parameters. Remote parameter setting and data access are available through dedicated software. The modular structure simplifies installation, replacement and daily maintenance.
High Reliability & Environmental Adaptability: Rugged industrial design delivers strong anti-electromagnetic interference, anti-vibration and anti-shock performance. With wide-range AC/DC universal power supply, it operates steadily under wide temperature, high humidity and dusty on-site conditions, adapting to long-term continuous operation in harsh industrial distribution occasions.
Ⅳ. Application Scenarios
(1) Substation Industry
Commonly deployed for feeder protection and management in various substations. It monitors feeder current and voltage, and eliminates risks such as overcurrent, ground fault and phase unbalance. With auto-reclosing and breaker control functions, it achieves fast fault isolation and power restoration. As reliable backup protection for transformers and transmission lines, it greatly improves substation power supply reliability.
(2) Industrial Plants
Suitable for power distribution systems in metallurgy, chemical, manufacturing and other industrial facilities. It protects workshop feeders and production power loops, and triggers timely overvoltage, undervoltage and overcurrent trip actions to prevent equipment damage caused by grid abnormalities. Analog output interfaces connect with plant DCS for centralized power monitoring, realizing intelligent power management and ensuring continuous production.
(3) Commercial Buildings
Applied in power distribution systems of office buildings, shopping malls and hotels. It undertakes feeder protection for lighting, air conditioning, elevators and other electrical loads. Flexible load shedding and auto-reclosing functions optimize power consumption and emergency power supply arrangement. Real-time electrical monitoring ensures power safety and improves power supply stability and energy-saving performance.
(4) General Power Distribution
Widely applicable to water treatment, mining, building materials and other industries. It provides comprehensive protection, parameter measurement and flexible control for general distribution feeders. Featuring high environmental adaptability and stable performance under harsh working conditions, it supports centralized remote monitoring, reduces manual maintenance costs, and delivers full-lifecycle reliable protection for various industrial and civil distribution systems.
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