| 摘要 |
<p>PURPOSE:To reduce the installation area, by enclosing a disconnecting switch and a grounding mechanism for maintenance and checking above a disconnecting switch and a grounding mechanism in a second unit. CONSTITUTION:Tanks T1, T1', T2, T2' for units are juxtaposed with each other so that another tank T4 is located in the center of them. A second disconnecting switch S2 and a third grounding mechanism E3 are located near a bus B3 laid in the upper space of the tank T2. The second disconnecting switch S2 is connected to the bus B3. The third grounding mechanism E3 is connected between the bus B3 and the tank casing. One end of the bus B3 is connected through a bus duct to another bus B1 laid in the tank T1 and the other end of the bus B3 is connected through a bus duct to another bus B6 laid in the tank T4. Thus, the number of the tanks can be made four for a two-line power reception type circuit breaker. The installation area and the quantity of filled insulating medium can be greatly reduced.</p> |
