GE MVAX31S1DE0754A

Product Introduction

The MVAX31S1DE0754A is a dedicated trip circuit supervision relay from GE Grid Solutions (formerly AREVA) designed to continuously monitor the integrity of medium-voltage circuit breaker trip circuits in power systems. It verifies the functionality of trip coils, wiring, and auxiliary contacts under both open and closed breaker states, detecting faults such as open circuits, short circuits, and ground faults in real time. The relay generates alarm and trip block signals upon fault detection to prevent failed breaker operations and enhance system reliability. It integrates with substation automation systems via standard communication protocols, supports seamless integration with existing protection schemes, and operates in harsh industrial environments with robust design and global certifications.

Category:
Description

Technical Specifications

  • Manufacturer: GE Grid Solutions (Formerly AREVA)
  • Product Series: MVAX Series Trip Circuit Supervision Relays
  • Part Number: MVAX31S1DE0754A
  • Relay Type: Digital Trip Circuit Supervision Relay
  • Rated Voltage: 110–250 V DC / 110–230 V AC, 50/60 Hz
  • Trip Circuit Voltage: 220 V DC (standard), 110 V DC (optional)
  • Monitoring Inputs: 2 trip circuit monitoring channels (for main and auxiliary trip coils)
  • Digital Outputs: 2 Form C relay outputs (5 A, 250 V AC) for alarm and trip block signals
  • Communication Protocols: Modbus RTU, IEC 60870-5-103
  • Operating Temperature: -25°C to +70°C (-13°F to +158°F)
  • Storage Temperature: -40°C to +85°C (-40°F to +185°F)
  • Humidity Range: 5%–95% non-condensing
  • Enclosure Rating: IP30 (panel-mounted)
  • Dimensions: 82 mm × 122 mm × 60 mm (3.2 in × 4.8 in × 2.4 in)
  • Weight: 0.5 kg (1.1 lb)
  • Display: LED status indicators (Power, Trip Circuit OK, Alarm, Trip Block)
  • Certifications: IEC 60255, IEEE C37.20.7, ANSI/IEEE C37.90.1
  • Response Time: < 100 ms for fault detection and alarm generation
  • Power Consumption: < 10 VA (AC), < 8 W (DC)

Functional Features

  • Continuous Trip Circuit Monitoring: Checks trip coil integrity, wiring continuity, and auxiliary contact operation in both open and closed breaker positions.
  • Dual Channel Monitoring: Supports two independent trip circuit channels for main and auxiliary trip coils, ensuring full redundancy.
  • Real-Time Fault Detection: Identifies open circuits, short circuits, ground faults, and coil burnout with < 100 ms response time.
  • Alarm and Trip Block Signals: Two Form C relay outputs trigger visual/audible alarms and block breaker tripping to prevent failed operations.
  • Communication Integration: Modbus RTU and IEC 60870-5-103 protocols enable remote monitoring, data logging, and integration with SCADA systems.
  • LED Status Indicators: Power, Trip Circuit OK, Alarm, and Trip Block LEDs provide instant visual status without additional tools.
  • Adjustable Alarm Thresholds: Configurable voltage drop and resistance thresholds to match specific trip circuit designs.
  • Self-Diagnostic Functions: Monitors internal circuits, power supply, and outputs to detect hardware faults and trigger alarms.
  • Breaker State Compatibility: Operates with both air-insulated and gas-insulated medium-voltage circuit breakers.
  • Global Compliance: Certified to IEC and IEEE standards for reliable performance in power generation, transmission, and distribution applications.

Application Scenarios

  • Medium-Voltage Substations: Monitoring trip circuits of 11 kV–35 kV circuit breakers in utility and industrial substations.
  • Power Generation Plants: Ensuring reliable tripping of generator circuit breakers during fault conditions.
  • Industrial Power Distribution: Protecting critical loads in manufacturing plants, data centers, and refineries.
  • Transmission Networks: Monitoring tie-line circuit breakers to maintain grid stability during system disturbances.
  • Renewable Energy Facilities: Supervision of circuit breakers in solar and wind farms for safe grid interconnection.
  • Critical Infrastructure: Hospitals, airports, and military bases where reliable breaker operation is mission-critical.
  • Retrofit Projects: Upgrading legacy trip circuit supervision systems to digital relays without extensive wiring changes.

Compatibility

  • Circuit Breakers: Medium-voltage air-insulated (AIS) and gas-insulated (GIS) breakers with 110–250 V DC trip coils.
  • Protection Relays: Works with GE Multilin, AREVA, and third-party protection relays for coordinated trip circuit monitoring.
  • Communication Systems: Modbus RTU and IEC 60870-5-103 for integration with SCADA and substation automation systems.
  • Power Supplies: 110–250 V DC / 110–230 V AC industrial power systems.
  • Mounting: Panel mounting with standard 82 mm × 122 mm cutout.

Installation Notes

  1. Mounting: Install in a panel with 82 mm × 122 mm cutout; ensure 50 mm clearance for airflow and wiring.
  2. Power Connection: Connect 110–250 V DC or 110–230 V AC power supply; verify voltage compatibility before energization.
  3. Trip Circuit Wiring: Connect monitoring channels to main and auxiliary trip coils using shielded cables to minimize noise interference.
  4. Communication Setup: Configure Modbus RTU or IEC 60870-5-103 parameters via front-panel DIP switches or software.
  5. Output Configuration: Assign relay outputs for alarm and trip block functions based on system requirements.
  6. Threshold Setting: Adjust voltage drop and resistance thresholds to match trip coil specifications and circuit resistance.
  7. Self-Test Activation: Perform a manual self-test after installation to verify monitoring and alarm functions.
  8. Post-Installation Testing: Validate trip circuit monitoring, fault detection, and communication links before system commissioning.

Key Advantages

  • Continuous Monitoring: Ensures trip circuit integrity to prevent failed breaker operations and improve system reliability.
  • Dual Channel Redundancy: Supports two independent trip circuit channels for enhanced safety.
  • Fast Fault Detection: < 100 ms response time minimizes fault propagation and outage duration.
  • Seamless Communication: Modbus RTU and IEC 60870-5-103 integration for remote monitoring and control.
  • LED Status Indicators: Instant visual status reduces troubleshooting time.
  • Adjustable Thresholds: Configurable settings match diverse trip circuit designs.
  • Self-Diagnostic Functions: Detects internal faults to ensure relay reliability.
  • Global Certifications: IEC and IEEE compliance enables worldwide installation in power systems.
  • Compact Design: 82 mm × 122 mm panel footprint saves space in control cabinets.
  • Easy Integration: Works with existing protection schemes and circuit breakers for cost-effective upgrades.
Reviews (0)

Reviews

There are no reviews yet.

Be the first to review “GE MVAX31S1DE0754A”

Your email address will not be published. Required fields are marked *

Shipping and Delivery

MAECENAS IACULIS

Vestibulum curae torquent diam diam commodo parturient penatibus nunc dui adipiscing convallis bulum parturient suspendisse parturient a.Parturient in parturient scelerisque nibh lectus quam a natoque adipiscing a vestibulum hendrerit et pharetra fames nunc natoque dui.

ADIPISCING CONVALLIS BULUM

  • Vestibulum penatibus nunc dui adipiscing convallis bulum parturient suspendisse.
  • Abitur parturient praesent lectus quam a natoque adipiscing a vestibulum hendre.
  • Diam parturient dictumst parturient scelerisque nibh lectus.

Scelerisque adipiscing bibendum sem vestibulum et in a a a purus lectus faucibus lobortis tincidunt purus lectus nisl class eros.Condimentum a et ullamcorper dictumst mus et tristique elementum nam inceptos hac parturient scelerisque vestibulum amet elit ut volutpat.