Voltage regulator providing wide range of voltage regulation

Details Voltage regulator providing wide range of voltage regulation Voltage regulator providing wide range of voltage regulation

1977-12-27

1979-09-18

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

323 435R, 336192, G05F 114

Patent

active

041684613

ABSTRACT:
A voltage regulator to provide a wide range of regulation, especially useful with process control. The regulator is provided with an extra bushing connected to the exciting winding of the regulator. By this means two or more regulators may be connected with their exciting windings in parallel and their series windings in series to provide a desired wide range of regulation. The invention also encompasses a selector switch so that the regulator operating at the top of the regulating range may be interchanged with one or more other regulators to alternate the tap-changing duty among the various regulators. Automatic operation of the regulators is disclosed.

REFERENCES:
patent: 3179875 (1965-04-01), Keats
patent: 3440586 (1969-04-01), Goodman et al.
patent: 3448340 (1969-06-01), Lewis
patent: 3681728 (1972-08-01), Mitchell et al.
patent: 3691495 (1972-09-01), Conway
Allis-Chalmers Transformer Reference Book, "Transformers in Parallel", 1940, pp. 13-18.
Allis-Chalmers Engineering Review, vol. 33, No. 1, 1968, pp. 14-17.

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