Electronic sectionalizer with resettable actuator

Details Electronic sectionalizer with resettable actuator Electronic sectionalizer with resettable actuator

1987-12-04

1989-01-03

Broome, H.

Electricity: electrothermally or thermally actuated switches

Electrothermally actuated switches

Fusible element actuated

337171, 337175, 335 32, H01H 7110, H01H 7120

Patent

active

047959967

ABSTRACT:
An electronic sectionalizer for a branch line of a high voltage power distribution system has a resettable actuator for unlatching a trunnion member and release of a sectionalizer tube toward a disabled or drop-out orientation. The actuator includes an elongated, spring-loaded plunger normally held by a latch in loaded position, and a solenoid or the like is provided to shift the latch and enable movement of the plunger toward a released position for simultaneous swinging movement of the trunnion member. In certain forms of the invention, the plunger is directly engageable with a wall of the trunnion member, while in other embodiments of the invention mechanical advantage is provided by use of an elongated lever which is disposed in the path of the plunger and which bears against the trunnion member for initiating rotational movement of the latter.

REFERENCES:
patent: 2951924 (1960-09-01), Schultz
patent: 3239617 (1966-03-01), Rigert
patent: 3321721 (1967-05-01), Smith, Jr.
patent: 3801946 (1974-04-01), Blewitt
patent: 4546341 (1985-01-01), McNaghten et al.
patent: 4553188 (1985-11-01), Aubrey et al.
patent: 4636764 (1987-01-01), Mee et al.

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