Short circuit disconnecting circuit

Details Short circuit disconnecting circuit Short circuit disconnecting circuit

1981-08-18

1982-08-24

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

219 69S, 328132, 361 93, B23K 910

Patent

active

043464238

ABSTRACT:
A circuit and process for disconnecting the current from the operating gap of an electrolytic processing device in the event of a short circuit in which a signal is produced from the AC current in the transformer supplying power to the gap, such signal indicating the gap current, the maximum value of that signal is stored for successive time periods and the stored value for a preceding period compared with the present signal to operate a switch in the current supply to the gap when a short circuit condition is detected.

REFERENCES:
patent: 3763399 (1973-10-01), Jenkins
patent: 3851134 (1974-11-01), Takarada
patent: 4303957 (1981-12-01), Bell, Jr. et al.

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