| 摘要 |
PROBLEM TO BE SOLVED: To obtain a switching apparatus suppressing rush current such as excitation rush current of a transformer in a compact and simple structure. SOLUTION: The switching apparatus is provided with a main switch 40 with a main fixed contact 6 fixed and supported by a base 31, and a main moving contact 3 supported to be able to be revolved by the base 31 and brought into contact with and separated from the main fixed contact 6; a closing resistor switch 50 with a closing resistor fixed contact 25 fixed and supported by the base 31, and a closing resistor moving contact 24 fixed to the main moving contact 3 and brought into contact with and separated from the closing resistor fixed contact 25 by being revolved with the main moving contact 3; and a closing resistor 1 which is fixed and supported by the main moving contact 3 and inserted and connected between the main moving contact 3 and the closing resistor fixed contact 24. The switching apparatus closes the closing resistor switch 50 before the main switch 40 is closed. The compact and simple structure is obtained by providing the closing resitor 1 and the closing resistor moving contact 24 to be revolved with the main moving contact 3. COPYRIGHT: (C)2007,JPO&INPIT
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