GE SR750-P5-G1-S1-HI-A20 Feedline management relay

GE SR750-P5-G1-S1-HI-A20 Feedline management relay

Specific Parameters

Brand GE (General Electric, American Original Factory), Product Series GE Multilin SR750 Series

Product Type Industrial-Grade High-Performance Feeder Management Relay, Power Distribution System Protection Relay, Medium and Low Voltage Feeder Protection and Control Component, Original Authentic Spare Part

Model GE SR750-P5-G1-S1-HI-A20 (Core Model SR750, Suffix P5=5A Rated Current Input, G1=Standard Control Power Supply, S1=Directional Protection Function, HI=High Voltage Control Power Supply Specification, A20=Voltage Measurement and Advanced Reporting Function)

Country of Origin United States (Produced by GE Original Factory)

Compatible Devices Medium and Low Voltage Distribution Feeders, Current Transformers (CT, 5A Secondary Side), Voltage Transformers (PT), Industrial Automation Systems, SCADA Systems, DCS Systems, Circuit Breakers, Contactors, EnerVista 750 Configuration Software

Core Functions Comprehensive Feeder Protection, Directional Overcurrent Protection, Voltage Measurement, Energy Metering (Voltage, Frequency, Watt-Hour Cost, Load-to-Trip Percentage, etc.), Fault Recording, Sequence of Events Recording, Remote Control, On-Site Programming, Simulation Test, Fault Self-Diagnosis, Advanced Report Generation

Product Structure Compact Industrial Enclosure, Modular Design, Rugged and Durable, Adaptable to Switchgear Installation, Facilitating Integration and Maintenance

Processor High-Performance Microprocessor, Realizing High-Precision Measurement, Metering and High-Speed Fault Response, Fast Processing Speed, Capable of Processing Large Amounts of Data

Current Input 3-Phase CT Input, 5A Rated Value (P5), Can Be Directly Matched with On-Site Universal Current Transformers, Supporting 3-Phase Current + Ground Current Input, High Sampling Accuracy

Voltage Input Supporting 3-Phase Voltage Measurement (A20), External PT Required, Can Monitor Voltage Level, Frequency and Voltage Unbalance, Providing Comprehensive Power Grid Status Perception

Control Power Supply (HI/G1) 88-300VDC or 70-265VAC, 50-60Hz, Wide Range High Voltage Input, Nominal Power 25VA, Maximum 35VA

Protection Functions Directional Overcurrent Protection (S1), Definite Time/Inverse Time Overcurrent Protection, Ground Fault Protection, Undervoltage Protection, Overvoltage Protection, Over/Under Frequency Protection, Negative Sequence Voltage Protection, Zero Sequence Voltage Protection

Metering Function Real-Time Measurement of Voltage, Frequency, Watt-Hour Cost, Load-to-Trip Percentage, Operation and Maximum Demand Equivalents, Can Trigger Breaker Maintenance Threshold Alarm

Analog Output 8 4-20mA Analog Output Channels, Used for Circuit Breaker Control and Alarm Signals, Accuracy ±1% Full Scale

Digital I/O Multiple Groups of Programmable Digital Inputs and Outputs, Supporting Switch Signal Acquisition and Control, Adapting to Various Industrial Control Scenarios

Communication Protocols Supporting Modbus RTU Serial Communication, Optional IEC 61850 Protocol, Reserved Integration Expansion Capability, Enabling Efficient Data Interaction with Upper Systems

Communication Interfaces Standard RS232, RS485 Interfaces, Supporting Direct Connection with Computers Running EnerVista 750 Software, Facilitating Configuration and Monitoring

Response Time ≤1ms, Can Quickly Detect and Trigger Fault Protection Actions, Accurately Judge Fault Direction, Avoiding Protection Maloperation or Refusal to Operate

Fault Recording Can Record Current and Voltage Waveforms Before and After Tripping, Supporting Waveform Export and Analysis, Providing Strong Data Support for Fault Diagnosis

Event Recording Can Store a Large Number of Time-Stamped Operation and Alarm Records, Supporting Data Export and Tracing, Facilitating Fault Root Cause Location

Insulation Voltage 300V, Overvoltage Category II, With Reliable Insulation Protection Performance

Operating Temperature Range -40℃ to +80℃

Storage Temperature Range -40℃ to +80℃

Relative Humidity 5% to 95%, Non-Condensing

Protection Class IP20 (Overall, Must Be Installed in Control Cabinet), Front Panel Has Excellent Protection Performance, Adaptable to Industrial On-Site Dust Environment

Vibration Complying with Strict Industrial Vibration Standards, Adaptable to Complex Vibration Environments in Industrial Sites, Equipped with Vibration-Resistant Structural Design

Shock Complying with Industrial Shock Standards, Having Good Shock Resistance, Ensuring Stable Operation of Equipment in Harsh Environments

Physical Dimensions Approximately 20cm×25cm×30cm, Compact Design, Adaptable to Narrow Installation Space of Switchgear

Physical Weight Approximately 2.5kg

Mounting Method Panel Mounting, Terminals Arranged Reasonably, Facilitating Wiring and Maintenance, Supporting Quick Installation and Disassembly

Operation Interface Equipped with 40-Character Alphanumeric Backlit LCD Display, Navigation Keyboard and LED Indicators, Can Intuitively Display System Values and Fault Information, Supporting Local Parameter Configuration, Status Viewing and Fault Query

Diagnostic Function Built-in Complete Fault Self-Diagnosis Module, Enabling Fault Recording, Sequence of Events Recording, Advanced Report Generation, Supporting Fault Data Tracing and Analysis, Quickly Locating Fault Causes

Product Material Industrial-Grade High-Strength Reinforced Enclosure, Conformal Coated PCB, High-Temperature Resistant Insulation Material, Built-in Anti-Electromagnetic Interference, Anti-Corrosion and Anti-Dust Protection Components, Excellent Insulation Performance

Special Functions Supporting Simulation Test Mode, Can Test Relay Function Before Connecting to the System; Equipped with Password Protection Function to Prevent Unauthorized Adjustment of Set Values; Can Calculate Power Direction to Ensure Action Only When Fault Occurs Within the Protection Zone; Configuration, Monitoring and Data Recording Can Be Completed Through EnerVista 750 Software, Simplifying Full-Life Cycle Management

Product Performance

GE SR750-P5-G1-S1-HI-A20 is an original GE device with extremely strong adaptability, which can be perfectly adapted to medium and low voltage distribution feeders and various power distribution systems, seamlessly integrated into industrial automation systems, SCADA systems and DCS systems, no additional adaptation components required, greatly reducing system integration complexity and commissioning costs. It can be used as the primary protection device for feeders, and can also provide backup protection functions for busbars, transformers and transmission lines, reducing product life cycle costs. The product has excellent protection, monitoring and metering performance, adopts high-precision measurement technology, with response time ≤1ms, which can quickly capture various feeder faults and trigger protection actions in a timely manner. The directional protection function can accurately judge fault direction, avoid large-scale power outages, and the voltage measurement and energy metering functions can provide comprehensive power grid status perception and accurate energy consumption data, fully covering various risks during feeder operation, ensuring the safe and stable operation of the power distribution system. The product has outstanding reliability, adopts industrial-grade high-quality components and conformal coated PCB design, has excellent anti-electromagnetic interference and anti-vibration impact capabilities, can adapt to harsh industrial scenarios such as dust, temperature-humidity fluctuations and complex electromagnetic environments, and the wide operating temperature range of -40℃ to +80℃ can ensure continuous and stable operation in various harsh industrial environments with a long mean time between failures. The product is convenient for operation and maintenance, the panel LCD display can intuitively view operation parameters, metering data and fault information, supports on-site programming and simulation test, remote configuration, monitoring and fault diagnosis can be realized through EnerVista 750 software, and the fault recording, event recording and advanced report functions facilitate maintenance personnel to trace fault causes and handle them efficiently, providing stable and reliable feeder management support for the safe and efficient operation of medium and low voltage distribution systems in various industries.