| 摘要 |
<p>PURPOSE:To provide an insulating gas-filled switch gear having high insulation performance and an overall compact size by reducing the breaker closing surge current in the circuit operation for reconnecting again part of the main buses to live lines without grounding. CONSTITUTION:A line-use gas-filled breaker A and a bank-use gas-filled breaker B are installed in line circuits 1L and 2L and transformer circuits 1B and 2B, respectively. Bus partitioning gas-filled breakers C1 and C2 are installed in two main buses BUS1 and BUS2, respectively, and a bus-tying gas-filled breaker D therebetween. Measuring instruments such as capacitor type instrument transformers PD1-PD4 other than wire-wound-type instrument transformer are installed as instruments for measuring the voltages of main bus. For the bus partitioning gas-filled breakers C1 and C2 and the bus-tying gas-filled breaker D, gas-filled breakers equipped with closing resistors are used.</p> |
