Patent ID: 7518851

Claim:
A distribution switchgear comprising; an equipment room and a main busbar room, which are formed in a distribution panel housing on its front side and on its back side respectively by partitioning; equipment units disposed in the equipment room, each comprising a vacuum circuit breaker, a current transformer on a load side of the circuit breaker and a zero-phase-sequence current transformer on a power supply side of the circuit breaker, the equipment units being vertically arranged; a solid-insulated main busbar being disposed along a horizontal direction of the housing in the main busbar room, a solid-insulated link busbar being vertically disposed in the main busbar room to be connected with the main busbar and connected with one side of each of the equipment units, and a solid-insulated branch busbar connected with the other side of each of the equipment units, wherein the vacuum circuit breaker comprises an electromagnetic operating device with an electromagnet, a permanent magnet and a solid lubricating bearing used for a sliding part of the electromagnetic operating device.