| 摘要 |
A tap changer switch for mounting within the casing of an electrical transformer, and operable from outside the casing. An insulating base member carries a plurality of stationary contacts, adapted for connection to the transformer winding, and a shaft member is disposed through an opening in the insulating base member such that it extends outwardly from both sides thereof. One outwardly extending portion of the shaft member carries a movable contact assembly which selectively shorts two adjacent stationary contacts, and the other outwardly extending portion of the shaft member is adapted to extend through the wall of the casing of the associated transformer, and it includes a handle for rotating the shaft and selecting the two stationary contacts to be shorted.
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