CPC H01H 1/365 (2013.01) [H01H 1/06 (2013.01); H01H 1/20 (2013.01); H01H 1/62 (2013.01)] | 17 Claims |
1. A three-position disconnector switch, comprising:
an earthing contact;
a power out contact;
a power in contact; and
a piston;
wherein the power out contact comprises a first part, a second part, and a leg portion interconnecting the first part and the second part, the leg portion having a width that extends only partially about a periphery of each of the first part and the second part;
wherein, in a first switch position, an outer surface of a wall of the piston makes a direct electrical contact with the first part of the power out contact and makes a direct electrical contact with the power in contact;
wherein, in a second switch position, the outer surface of the wall of the piston makes a direct electrical contact with the first part of the power out contact and makes a direct electrical contact with the second part of the power out contact;
wherein, in a third switch position, the outer surface of wall of the piston makes a direct electrical contact with the second part of the power out contact and makes a direct electrical contact with the earthing contact; and
wherein the piston is configured to move along an axis of the three-position disconnector switch to transition the three-position disconnector switch between the different switch positions.
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