ALSTHOM MMLG01B1AA0001B继电保护测试模块 PDF资料
ALSTHOM MMLG01B1AA0001B 是 ALSTOM（现属 GE Grid Solutions）Midos 系列的一款标准继电保护测试块，本身不含处理器或逻辑运算功能，核心作用是为保护继电器提供安全的被动测试接口。
产品特点（5条）
被动式测试接口，无固件、无处理器，依靠内部机械触点实现回路隔离与接入。
14 回路配置，提供 14 个独立电路，可接入 CT、VT、跳闸、报警及辅助电源等回路。
CT 自动短接保护，配合测试插头插入时按“先短接后断开”顺序动作，防止 CT 二次开路。
无需拆线测试，正常运行时触点常闭，插入专用插头即可隔离继电器，避免扰动原接线。
专用配套限制，必须使用 MMLB 01 多指测试插头配合操作，不兼容通用插头。
产品应用领域（10条）
变电站继电保护屏柜的二次注入测试
发电厂保护系统的定期校验与维护
电流互感器二次回路的安全短接与测试
电压互感器二次回路隔离
断路器跳闸回路的功能验证
轨道交通牵引供电保护系统调试
工业配电室保护装置的故障排查
老旧 Midos 保护系统的维修替换
变压器保护屏的测试接口扩展
保护继电器改造或更换时的临时隔离点
结尾
综上，ALSTHOM MMLG01B1AA0001B 是一款基于 Midos 平台的标准测试块，以被动机械触点实现继电保护回路的安全隔离与二次注入接口，适用于变电站、电厂及工业配电系统中保护装置的维护与校验场景。
ALSTHOM MMLG01B1AA0001B继电保护测试模块 英文介绍
ALSTHOM MMLG01B1AA0001B is a standard relay protection test block in the ALSTOM (now part of GE Grid Solutions) Midos series, which does not include a processor or logic operation function. Its core function is to provide a safe passive testing interface for protecting relays.
Product features (5 items)
Passive testing interface, without firmware or processor, relying on internal mechanical contacts to achieve circuit isolation and access.
14 circuit configuration, providing 14 independent circuits that can be connected to CT, VT, trip, alarm, and auxiliary power circuits.
CT automatic short circuit protection, in conjunction with the insertion of the test plug, operates in the order of "short circuit first, then disconnect" to prevent CT secondary open circuit.
No need to disconnect the wires for testing, the contacts are normally closed during normal operation, and the relay can be isolated by inserting a dedicated plug to avoid disturbing the original wiring.
Special matching restrictions require the use of MMLB 01 multi finger test plug for operation, which is not compatible with universal plugs.
Product application areas (10 items)
Secondary injection test of substation relay protection cabinet
Regular calibration and maintenance of power plant protection system
Safe Short Circuit and Testing of Current Transformer Secondary Circuit
Secondary circuit isolation of voltage transformer
Functional verification of circuit breaker tripping circuit
Debugging of traction power supply protection system for rail transit
Troubleshooting of protective devices in industrial distribution rooms
Repair and replacement of old Midos protection system
Expansion of testing interface for transformer protection screen
Temporary isolation points during the modification or replacement of protective relays
ending
In summary, ALSTHOM MMLG01B1AA0001B is a standard test block based on the Midos platform, which uses passive mechanical contacts to achieve safe isolation and secondary injection interface of relay protection circuits. It is suitable for maintenance and calibration scenarios of protection devices in substations, power plants, and industrial distribution systems.
ALSTHOM MMLG01B1AA0001B继电保护测试模块 产品图片
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