High-reliability distributed terminal ring main unit

The high-reliability distributed terminal ring main unit is divided into three layers, and a first load switch cable chamber, a second load switch cable chamber, a third load switch cable chamber, a first circuit breaker cable chamber and a second circuit breaker cable chamber are sequentially arranged on the lowest layer from the first side to the second side; first, second and third load switchmechanism chambers, first, second and third common terminal control chambers and first and second circuit breaker mechanism chambers are distributed on the middle layer. First, second and third load switch common box instrument chamber units and first and second circuit breaker common box instrument chamber units are sequentially arranged on the uppermost layer from the first side to the second side. Distribution terminals are installed in the first, second and third load switch common box instrument chamber units, and the first and second circuit breaker common box instrument chamber units. Apartial discharge monitor