| 摘要 |
<p>PURPOSE:To lower the position of the center of gravity of a device on a second floor by arranging of six or three single phase type main buses on a first floor face and disposing the main buses of parts of other main buses on an uppermost section on a second floor. CONSTITUTION:A first switching device group containing circuit breakers 3C, 3D and disconnectors 4C, 4D disposed on the same plane and three main buses 1A, 1C, 2C connected to these equipments by branch buses 8A, 8B and arranged on the same plane are mounted between a first floor 15 and a second floor 16. Consequently, a space, in which slight allowable size is added to the diameter of the main bus 1A, 1C or 2C, may be formed between the top face of the first switching device group and the underside of the second floor 16. That is, height from the first floor 15 to the second floor 16 can be lowered by size corresponding to the diameters of the main buses 1B, etc. Accordingly, the position of the center of gravity of a second switching device group containing circuit breakers 3A, 3B and circuit breakers 4A, 4B and having larger weight on the second floor 16 and the center of gravity of the whole gas insulated switch are lowered.</p> |
