Schneider MCS025 Synchro-Check Module Inquiry Item

Product Description

MCS025 is Schneider synchro-check module (ANSI 25), matching Sepam series 60 and Sepam series 80 protection relays. It collects two-way voltage signals on both sides of circuit breaker, compares amplitude, frequency and phase angle difference, judges whether the power grid condition allows closing operation. It has 3 relay output channels, can send closing permission signal to multiple Sepam protection units at the same time. Configuration and monitoring are realized through SFT2841 software. Widely used in generator, transformer, busbar and distribution feeder synchronization closing occasions in power substation.

Technical Specifications

Model: MCS025 Brand: Schneider Electric Function: Synchronism check ANSI25 Power supply: 10~240V AC / 24~250V DC Output: 3 relay contacts Support system: Sepam 60, Sepam 80 Matching accessories: CCA785 connection cable, CCT640 voltage terminal, CCA620 power connector Certification: CE, IEC Protection grade: IP30

Components & Troubleshooting

It includes signal acquisition circuit, synchronization judgment processing board, relay output group, status LED indicators and wiring connectors. Common faults: Synchronism condition misjudgment, relay no output, communication failure with Sepam host, power supply alarm, voltage sampling deviation.

Disclaimer

This spare part shall be installed, calibrated and maintained by qualified instrument technicians. Set synchronization threshold before commissioning.