| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem of a conventional system, wherein in the wiring of a switchgear, the secondary wiring of a current transformer for meters and a transformer for meters and the wiring of a control circuit exist mixed in a wiring duct, and the surge generated in a main circuit shifts, from the secondary wiring of the current transformer for meters and the transformer for meters to the wiring of the control circuit. <P>SOLUTION: The switchgear includes a multi-relay 6, which is attached to the front door 2 of a box 1 having stored a breaker 3; a current transformer 4 for meters and a transformer 5 for meters and having consolidated the functions for protection, measurement, display and operation; and auxiliary equipment 8 for control which is arranged at the rear of the multi-relay and is used in combination with the multi-relay. The wiring is separated, by making as different faces, the connection face 6b of wiring 7 for connecting the multi-relay and the auxiliary equipment, and the connection face 6a of wiring 10 and 11 for connecting the current transformer for meters, the transformer for meters, and the multi-relay with one another, from each other, thereby suppressing a surge. <P>COPYRIGHT: (C)2011,JPO&INPIT |
