| 摘要 |
<p>PURPOSE:To reduce the size of the entire body of a gas-insulated switchgear by reducing the dimension between both leading sections of circuit breakers constituting a gas insulation switchgear and to improve the standardization and interchangeability of equipment by making the shapes of T-type connection buses the same at each circuit breaker. CONSTITUTION:Single-phase circuit breakers 1a-1c corresponding to three phases are arranged in parallel with each other by successively shifting the interphase dimension by L2 in the interphase direction of each phase of connection buses A and B 2a and 3a from the circuit breaker 1a of the first phase. The base section of T-type connection buses 5a-5c having the same shape in each phase are connected to one leading section of the circuit breakers 3a-3c of each phase and the buses A and B 2a-2c and 3a-3c are respectively connected to both ends of the buses 5a-5c. Line-side disconnecting switches 9a-9c are provided to the leading sections of the circuit breakers 1a-1c on the opposite sides. Therefore, the dimensions L1 of the circuit breakers can be reduced, since the projection of the bus 5a to the switch 9a side can be reduced by the shifted amounts of the circuit breakers 1 and 1c.</p> |
