GE MMLG01R1AB0001E Test Terminal Module

Product Description

MMLG01R1AB0001E is a vertical standard test block of GE/Alstom Midos series, a secondary circuit test terminal module for power protection system. It works with MMLB01 multi-fingered test plug. When inserting the test plug, the circuit contacts will be disconnected automatically. There is no need to modify the original wiring of protection devices, to realize circuit isolation, online monitoring and secondary injection test. It greatly simplifies relay protection commissioning and is designed for protection panel cabinets in substations up to 275kV.

Specifications

• Model: MMLG01R1AB0001E
• Brand: GE Grid Solutions (Former Alstom)
• Mounting: Vertical mounting
• Circuits: 14 independent circuits. Each circuit has one pair of built-in contacts with paired terminals at rear side
• Matching accessory: MMLB01AXAA0011E multi-fingered test plug
• Weight: approx. 1.671kg
• Country of origin: United Kingdom
• Applicable voltage: Transmission & distribution system up to 275kV
• Features: Contacts open automatically when test plug inserted; circuit restores after plug removal; finger-safe connector interface

Application

1. Substation relay protection panels: isolation, monitoring and secondary injection test for relay secondary circuits
2. Protection verification and periodic maintenance test for power transmission & distribution system (≤275kV)
3. Install alongside Midos modular relay protection systems on protection cubicles
4. Troubleshooting of protection circuits; no wiring disconnection required to avoid mal-operation risk caused by disturbing original protection wiring

Series Models

1. MMLG01R1AA0001E (legacy standard test block)
2. MMLG02
3. MMLG03
4. MMLG07 Matching test plug: MMLB01AXAA0011E