TRANSFORMER WITH TAP SWITCH

摘要

PROBLEM TO BE SOLVED: To attach and detach a bushing and a bushing converter inside a tap switch box by providing a tap switch box with a bushing for drawing a lead wire of a wiring to an outside and providing a bushing converter to an inside of a tap switch box. SOLUTION: A bushing 7 and a bushing converter 12 are arranged in an upper part of a tap switch box 6. Thereby, the bushing 7 can be attached and detached and the converter 12 can be checked by opening the tap switch box 6 and insulation oil is put in and out inside a tap switch box alone. Therefore, it is possible to eliminate the need for putting in and out oil inside a main body tank 27 for every operation which is required in a conventional method. Furthermore, for opening and closing the tap switch box 6, a door of a hinge structure, for example, can be provided and it is possible to eliminate the need for providing another handle hole for attaching and detaching of the bushing 7 and checking.