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GE 750-P5-G5-S5-HI-A20-R-E Management Relay
GE 750-P5-G5-S5-HI-A20-R-E
The GE 750-P5-G5-S5-HI-A20-R-E is a high-performance feeder management relay built on the GE Multilin P5 platform. It integrates comprehensive protection, control, monitoring and metering functionalities, and is specially designed for medium and large-scale distribution networks. This relay is widely deployed in high-voltage power grid scenarios across industries such as electric power, petrochemical, metallurgy and more.
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Core Parameters
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Parameter Category
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Specific Specifications
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Notes
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Hardware Configuration
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Relay Model
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750-P5-G5-S5-HI-A20-R-E
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Analog Inputs
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20 channels (A20)
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Digital Inputs/Outputs
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5 input channels (G5), 5 output channels (S5)
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Dimensions
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Approx. 7 inches (L) × 6.5 inches (W) × 8.5 inches (H); compatible with standard 19-inch rack mounting
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Chassis Structure
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SR 750 series chassis with dust-proof door and drawer-type design; Enclosure (E) protects mechanical drawer components, excluding electronic components
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Communication Interfaces
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Supports multiple communication protocols including DNP3, Modbus, IEC61850, etc., enabling seamless integration with SCADA systems
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Product Features
- All-In-One Multifunctionality: This relay integrates fault detection, circuit breaker control, auto-reclose and event recording functions, eliminating the need for additional monitoring equipment and simplifying power distribution system configuration.
- Advanced Metering Capabilities: Equipped with built-in measurement functions for voltage, current, power, power factor, frequency and other key parameters, providing accurate real-time operating data for distribution networks to support refined operation and management.
- High Reliability & Safety: The chassis is designed with an automatic CT short-circuit mechanism, ensuring operator safety during equipment maintenance and overhaul. The rugged enclosure construction delivers exceptional durability, adapting to harsh industrial operating environments.
- Easy Maintenance: Adopts a user-friendly drawer-type structural design, allowing for quick module replacement and maintenance, minimizing equipment downtime and reducing on-site maintenance workload.
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Typical Application Areas
- Distribution System Protection: Applied to medium and large-scale distribution feeder protection in power plants and substations, effectively preventing faults such as overcurrent and ground faults to ensure stable power distribution.
- Industrial Power Systems: Deployed in high-load industrial scenarios like petrochemical and metallurgical industries, safeguarding power supply security for critical production equipment and avoiding unplanned production interruptions.
- Power Grid Automation: Cooperates with power grid automation systems to realize rapid fault isolation and power restoration, significantly improving overall power supply reliability and operational efficiency of the power grid.
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Installation & Maintenance Recommendations
Installation Method
This device is tailor-made for standard 19-inch racks, supporting standalone or side-by-side rack mounting. Sufficient clearance must be reserved for door opening during installation to ensure unobstructed operation of the chassis door.
Precautions
If the relay cannot be properly installed into the enclosure, it is generally caused by incompatible configuration codes.Do not force the installation, as this may cause damage to the internal structural components of the equipment.
Maintenance & Upkeep
Leveraging the drawer-type structural design, regularly inspect the connection status of internal electronic modules and the CT short-circuit device. Routine maintenance ensures the accuracy of metering data and the normal operation of protection functions, prolonging the service life of the relay.
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