Interlock control for a circuit breaker and a disconnector

Details Interlock control for a circuit breaker and a disconnector Interlock control for a circuit breaker and a disconnector

1998-12-07

1999-09-21

Donovan, Lincoln

High-voltage switches with arc preventing or extinguishing devic

Arc preventing or extinguishing devices

Operating mechanism structure or arrangement

218118, 218120, 218140, H01H 300, H01H 324, H01H 332, H01H 3302

Patent

active

059557168

ABSTRACT:
The interlock control for a circuit breaker and a disconnector comprises a moving bar for opening or closing the circuit breaker and a displacement rod for displacing a disconnector rod to open or close the disconnector. The moving bar is driven by an arm which is secured to an outlet shaft and which is rotatable in a plane perpendicular to the outlet shaft, and the displacement rod is driven via an L-shaped piece which is movable about an axis that is substantially parallel to the outlet shaft, the arm driving the L-shaped piece during a second opening or closing stage of the circuit breaker via a wheel which is fixed to the arm and which slides in a notch of the L-shaped piece. The outlet shaft makes it possible to achieve interlocking by means of a single control, thereby providing a high level of reliability and of safety.

REFERENCES:
patent: 3399286 (1968-08-01), Kerr
patent: 3824359 (1974-07-01), Date
patent: 4591678 (1986-05-01), Yin
patent: 4996397 (1991-02-01), Kuhn et al.
patent: 5422450 (1995-06-01), Miyazawa et al.
patent: 5436414 (1995-07-01), Hodkin et al.
patent: 5438174 (1995-08-01), Slade
patent: 5898151 (1999-04-01), Plat et al.

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