继电保护系统
为关键电力系统提供可靠的实时保护和控制。我们先进的保护继电器系统可确保运行安全、最大程度减少停机时间并维护系统完整性。
ES-25 sync-check relays monitor two ac circuits and provide a contact output when the two circuits are synchronized. Typical application of the ES-25 involves supervision of an automatic or manual circuit breaker closing scheme. The ES-25 offers true sync-check protection by monitoring the phase displacement and voltage difference between two sources of single, dual, or three phase systems.