GE SR750-P1-G1-S1-HI-A20-R-E
GE SR750-P1-G1-S1-HI-A20-R-E - Image 2

GE SR750-P1-G1-S1-HI-A20-R-E

Product Overview: The GE SR750-P1-G1-S1-HI-A20-R-E is a core feeder management relay in the GE Multilin 750 series. It simplifies the complex task of distribution feeder management by integrating protection, control, metering, and data logging into a single, highly reliable device. It is designed to extend system life and reduce troubleshooting time through advanced diagnostic capabilities.

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Category: SKU: GE SR750-P1-G1-S1-HI-A20-R-E

Description

GE SR750-P1-G1-S1-HI-A20-R-E Technical Specifications:

  • Series: GE Multilin 750/760 Feeder Management Relay.
  • Current Rating: 1 A Phase Current Input.
  • Ground Fault: 1 A Zero-sequence and sensitive ground inputs.
  • Control Power: 88-300 VDC or 70-265 VAC.
  • Interface: 40-character LCD, keypad, LEDs, and RS232 port.

Functional Features:

  • Integrated Metering: Measures all fundamental electrical parameters including voltage, current, power, and energy.
  • Predictive Maintenance: Uses metering functions to monitor breaker wear and trigger maintenance alerts before failure occurs.
  • Self-Assessment: Continuously performs internal self-diagnostics to ensure relay integrity.
  • Flexible Configuration: Setpoints can be adjusted locally via the keypad or remotely via the EnerVista 750 PC software.

Application Scenarios:

  • Primary feeder protection in commercial and industrial power distribution networks.
  • Motor and generator protection applications.
  • Integration into substation automation systems via serial communication.

Performance Parameters:

  • Reliability: Solid-state design with no moving parts ensures long-term operational stability.
  • Response Time: Ultra-fast fault clearing times to minimize equipment damage.
  • Data Capacity: Ample memory for storing historical events and fault waveforms.

Material Composition & Structural Characteristics:

  • Chassis: Ruggedized industrial metal and composite housing.
  • Front Panel: User-friendly interface with backlit LCD and tactile membrane keypad.
  • Backplane: High-density connector interface for seamless integration with the SR 750 base chassis.

Working Principle: Operating on the same fundamental principle as the 750 series, this relay processes real-time electrical data to protect the feeder. It utilizes programmable logic and protection elements to define custom tripping schemes, monitor breaker status, and execute automated control sequences based on system conditions.

Installation Requirements:

  • Clearance: Maintain adequate clearance around the front panel for airflow and maintenance access.
  • Grounding: Ensure the relay chassis and CT/VT secondaries are properly grounded to prevent electrical noise and safety hazards.
  • Software Setup: Utilize the EnerVista 750 software for initial configuration and periodic maintenance.

Usage Precautions:

  • Live Circuits: Never disconnect or short-circuit current transformer (CT) secondary leads while the primary circuit is energized.
  • Password Protection: Always utilize the password protection feature to prevent accidental or malicious modification of protection settings.
  • Environmental Limits: Operate within the specified temperature and humidity ranges to prevent condensation and component degradation.

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