Circuit arrangement for reducing the residual voltage on partial

Details Circuit arrangement for reducing the residual voltage on partial Circuit arrangement for reducing the residual voltage on partial

1984-05-25

1986-03-11

Pellinen, A. D.

Electrical transmission or interconnection systems

Plural load circuit systems

Selectively connected or controlled load circuits

361152, 361187, 307100, H01H 4700

Patent

active

045756414

ABSTRACT:
This invention is concerned with a circuit arrangement for reducing the residual voltage on partially disconnected loads, such as control coils of electromagnetic switchgear having long control lines, by connecting an auxiliary load in parallel to the load. According to the invention, a constant-current sink is connected in parallel to the load as an additional load, which is dependent on a control circuit that the circuit closes when the applied voltage is below a predetermined value and breaks when it exceeds a predetermined value.

REFERENCES:
patent: 3790862 (1974-02-01), Kampf et al.
patent: 4418374 (1983-11-01), Callan

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