| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the length of a main bus-bar requiring a firm foundation. SOLUTION: First disconnecting switches 48a, 48b and second disconnecting switches 49a, 49b are successively connected in series from a first main bus-bar 36 between the first main bus-bar 36 and a second main bus-bar 37, and first current transformers 50a, 51a, circuit breakers 52, 53, and second current transformers 50b, 51b are connected in series between disconnecting switches 48a, 48b and between the disconnecting switches 49a, 49b to constitute transformer units 46, 47 of three phases. The disconnecting switches 48a, 48b and 49a, 49b are arranged in the mounting space with necessary intervals, and the first disconnecting switches 48a, 49a are directly connected to the first main bus-bar 36, and the second disconnecting switches 48b, 49b are directly connected to the second main bus-bar 37.</p> |
