Load and line balancing circuit

Details Load and line balancing circuit Load and line balancing circuit

1974-11-25

1976-08-31

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

321 11, 321 18, 323 22SC, 323 34, H02M 7155

Patent

active

039783944

ABSTRACT:
A circuit for use in connection with an electrochemical painting apparatus wherein the painting load circuit is connected to a source of three-phase electrical supply by means of a plurality of controlled rectifiers connected as a full wave rectifier. The firing circuit for the control rectifiers includes a normal firing circuit which is phase controlled, the input to the normal firing circuit being supplied from a flip-flop circuit, the flip-flop circuit being adapted to store a start signal and regenerate the start signal for each phase of the multiphase supply in response to the sensing of the zero voltage crossover point for each phase. A similar situation occurs on the stop signal wherein the stop signal occurs and the flip-flop stores that condition until such time as the voltage waveform again crosses zero to signal the end of a cycle.

REFERENCES:
patent: 3193753 (1965-07-01), Fleming
patent: 3409821 (1968-11-01), Bingley
patent: 3465234 (1969-09-01), Phadke
patent: 3519917 (1970-07-01), Martin
patent: 3670234 (1972-06-01), Joyce
patent: 3735241 (1973-05-01), O'Sullivan

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