| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce spaces occupied by a circuit-breaker, an operating means, and a pair of earthing switches and to reduce the dimensions of a gas-insulated switchgear by providing the pair of earthing contacts between the circuit-breaker and the operating means. SOLUTION: The part of the upper charging unit 2a in a circuit-breaker 2 is fixed to a frame 16 by the medium of an insulating supporting cylinder 14, while the part of the lower charging unit 26 is fixed to the frame 16 by the medium of an insulating supporting insulator 15. And an operating means 3 fitted onto the right side of the frame 16 and the circuit-breaker 2 are interlocked/connected through an insulating rod 17 in the insulating supporting cylinder 14. And a pair of earthing switches 5 for grounding the upper and lower charging units 2a, 2b of the circuit-breaker 2 are arranged in a space inside the frame 16, surrounded by the circuit-breaker 2, the operating means 3, the insulating supporting cylinder 14, and the insulating supporting insulator 15. Consequently, it becomes possible to reduce spaces occupied by the circuit- breaker 2, the operating means 3, and a pair of earthing switches 5, and to reduce the dimensions of the gas-insulated switchgear.</p> |
