| 摘要 |
<p>PURPOSE: To shorten the length of main bus by arranging two bus disconnectors and a linear circuit breaker on a line extending perpendicularly to the main bus and passing one connection bus coaxially with the circuit breaker and the bus disconnector while the other connection bus immediately above the circuit breaker and employing a pressure balance bellows for the connection of the upper part of circuit breaker. CONSTITUTION: A first bus disconnector 4, a second bus disconnector 5, and a linear circuit breaker are arranged on a line extending perpendicularly to first and second main buses 2, 3. One lead wire of the circuit breaker 1 is connected directly with the first bus disconnector 4 through an instrument transformer 7 while the other lead wire is led out horizontally through the instrument transformer 7, raised through a connection bus 16a and connected with a connection bus 17 through a connection bus 16b immediately above the circuit breaker 1 and a pressure balance bellows 10. It is then dropped from the connection bus 17 down to the height of the lead wire of bus disconnector 5 in front thereof and connected horizontally. With such arrangement, the length of main bus is substantially halved.</p> |
