High voltage disconnecting switch

Details High voltage disconnecting switch High voltage disconnecting switch

H - Electricity

01

H

H01H 33/12 (2006.01) H01H 31/36 (2006.01)

Patent

CA 2046692

ABSTRACT HIGH VOLTAGE DISCONNECTING SWITCH A semi-pantograph disconnecting switch (10) for a high voltage substation comprises a pick-up device (24) with a main conducting bar (28), and a contact head (22) having an insulating guide fork (38), a grip-type movable main contact (40), and a whip-type movable arcing contact (42) associated with an operating mechanism (44). A trip lever (54) is controled by the bar (28) during the closing travel to unlock a finger (52) of the mechanism (44), bringing about movement of the whip towards a stationary arcing contact (34) at the same potential as the main bar (28). Resetting of the mechanism (44) is performed automatically at the end of closing travel of the disconnecting switch (10). The absence of an arc on the main bar (28) improves the reliability of the disconnecting switch (10). Refer to figure 7.

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