DRAW-OUT TYPE POWER RECEPTION/DISTRIBUTION APPARATUS UNIT

摘要

PROBLEM TO BE SOLVED: To improve the assembly structure of a draw-out type power reception/distribution apparatus unit which is contained in a switchboard while mounting a voltage transformer on a truck.

SOLUTION: A voltage transformer 1 is mounted on a truck 2 contained in a board while mounting a cradle 3, and the main circuit bus 4 and the voltage transformer on the board side are connected/disconnected through a disconnector 5 by pushing in or drawing out the truck. In such a draw-out type unit, a supporting seat 9 for fixing the movable contact 5b of the disconnector is provided in the body of the voltage transformer while being juxtaposed closely to its main circuit terminal. Proximal portion of the movable contact is fastened by means of a screw across the supporting seat and the main circuit terminal, and a fixed contact 5a of the disconnector and the main circuit bus on the board side are fixed to and supported by a through bushing 10 provided on the back of the cradle.

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