Circuit for automatic operation of a series brake upon power los

Details Circuit for automatic operation of a series brake upon power los Circuit for automatic operation of a series brake upon power los

1998-04-27

2000-05-16

Ip, Paul

Electricity: motive power systems

Series motors

318247, 318258, H02P 506, H02P 712

Patent

active

060641622

ABSTRACT:
An anti-regeneration circuit for preventing a regenerated current produced by an overhauling DC motor from setting a series brake. The anti-regeneration circuit includes a current blocking device 90 which blocks the flow of regenerated current in the crane control circuit 10 and a surge suppresser 94 for protecting the current blocking device 90 from a high inverse peak voltage produced by de-excitation of a crane control circuit 10 upon the sudden loss of power.

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