| 摘要 |
<p>PURPOSE: To make it possible to shorten the circuit length of a line circuit by the size of a device arranged in parallel with main buses by arranging at least one of an instrument potential transformer, a lightening arrester and a cable head in parallel with the main buses. CONSTITUTION: A lightening arrester 19 of a line circuit 3 and an instrument potential transformer 20 are arranged vertically with the axial line of the line circuit 3, that is to say, in parallel with main buses 1 and 2. Thus, the length LA of the line circuit can be shortened to a large extent. In this way, the providing space of the entire gas insulated switchgear can be greatly shortened. Furthermore, the arrangement is not limited to this way, and it is sufficient that at least one device of a cable head 21, the lightening arrester 19 and the instrument potential transformer 20 is arranged in parallel with main buses 1 and 2. It is also possible that any device except at least one device is arranged on the axial line of the line circuit 3 or any device is not located on the axial line of the line circuit 3.</p> |
