| 摘要 |
<p>PURPOSE:To provide a gas-insulated switchgear capable of increasing safety attended with inspection work, and capable of shortening circuit stop time required for the inspection sharply. CONSTITUTION:One electrode side of a gas circuit-breaker GCB is connected to a bushing Bg through a line-side disconnector DS1. A line-side grounding switch ES1 is connected between the bushing Bg and the line-side disconnector DS1. A grounding switch iES1 capable of causing an induction current to flow is connected between the line-side disconnector DS1 and the gas circuit-breaker GCB. The other electrode side of the gas circuit-breaker GCB is connected to a bus-bar-linking circuit connecting a first main bus-bar linking BUS1 and a second bus-bar BUS 2. A working grounding switch ES3 is connected between the gas circuit-breaker GCB and the bus-bar linking circuit. And a disconnector DS2 for a bus-bar is provided between the gas circuit-breaker GCB and the first main bus-bar BUS1, and a disconnector DS 3 for a bus-bar is provided between the gas circuit-breaker GCB and the second main bus-bar BUS1.</p> |
