| 摘要 |
<p>PURPOSE:To enable direct connection of a disconnecting switch with a circuit breaker and to reduce the size by arranging the conductors of main bus triangularly and arranging three phases of the disconnecting switch, to be connected therewith, in parallel. CONSTITUTION:Respective phases of main bus conductors 4a-4c are arranged at the vetexes of a triangle, and then the axes of a disconnecting switch and the conductors 2a-2c at the movable side of the disconnecting switch for three phases are arranged between one phase and two other phases of the main bus conductors 4a-4c so that the axes of the bus disconnecting switch will be in parallel thus connecting the conductors 2a-2c at the movable side with the main bus conductors 4a-4c. Since the interlope section of the bus disconnecting switch can be arranged in proximity to the central axes of the main buses 4a-4c and the axis of the bus disconnecting switch is horizontal, the disconnecting switch can directly be connected with a vertical type circuit breaker. By such arrangement, the shape of the enclosure 9 and the jointing conductor can be simplified resulting in the reduction of overall size.</p> |
