| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the arrangement size of a gas-insulated switchgear between a transformer and an electric line, and to ensure a sufficient inspection space around. SOLUTION: A gas-oil bushing 18 is arranged in the upper part of a transformer 19 in the horizontal direction, and a tank 13T in which a circuit-breaker 13 and a disconnector 12 are housed is formed into a cylindrical single tank. In the central part of the tank 13T, the circuit-breaker 13 is housed, and the disconnector 12 is housed on the electric-line side of the circuit-breaker 13 via an insulating spacer 20. The transformer-side end of the tank 13T is arranged below the gas-side end of the gas-oil bushing 18, and the gas-side end of the gas-oil bushing 18 and the circuit-breaker 13 are connected with a connecting conductor 17. To the upper part of the electric-line side end, a bushing 11 to be connected to the electric line is fitted, and a zinc oxide type lightning arrester 15 is arranged on the same axis with the circuit-breaker 13 of the transformer side end surface of the tank 13T.</p> |
