Tap changing power regulator for airport lighting

Details Tap changing power regulator for airport lighting Tap changing power regulator for airport lighting

1988-07-28

1989-03-28

Beha, Jr., William H.

Electricity: power supply or regulation systems

Output level responsive

Using a transformer or inductor as the final control device

323263, 323361, 315 76, 315277, 315279, G05F 120

Patent

active

048167380

ABSTRACT:
A power current regulator, in particular for airport lighting, includes transformers in series with intermediate taps on their secondary windings staged a various different numerical weights. In each case, one of said taps is selected by a latch memory (MV) preceded by an up/down counter (CD). These circuits are actuated by a control circuit as a function of the current detected by a current transformer (TIC) connected in series with the load.

REFERENCES:
patent: 3603971 (1971-09-01), Woschetzky
patent: 3743921 (1973-07-01), Legg et al.
patent: 3818321 (1974-06-01), Willner et al.
patent: 3921059 (1975-11-01), Birman et al.
patent: 3970918 (1976-07-01), Cooper
patent: 4623834 (1986-11-01), Klingbiel et al.

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