Voltage regulation system
AssigneeLPSI (Barbados) Limited
InventorsAlbert W. Dunford, William G. Dunford, Colm E. Gallen, Daniel J. Harvey
Life of this patent
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Abstract
A tap-switching autotransformer for regulating the voltage supplied to a facility includes an electronics sub-assembly for controlling switching of the taps. The electronics sub-assembly and the windings are contained in a housing from which the electronics sub-assembly may be removed for repair or replacement. The electronics sub-assembly is adapted to enable an electronically actuated switch to short-circuit two of the taps. A mechanical switch enables a separate short-circuit to be maintained between the taps to enable the electronics sub-assembly to be safely removed from the housing.
Claims4
A tap-switching autotransformer adapted to be interposed between a utility power supply and a facility for regulating the voltage supplied to said facility comprising:
- an electronics sub-assembly for automatically controlling switching of the taps to control an output voltage from said autotransformer;
- a housing for holding said electronics sub-assembly and at least one winding;
- said electronics sub-assembly being removable from said housing for repair or replacement;
- said electronics sub-assembly being adapted to enable an electronically-actuated short-circuit between two of said taps;
- and,
- a mechanical by-pass switch enabling a mechanically-actuated short-circuit to be maintained between the taps, said mechanically-actuated short-circuit being separate from said electronically-actuated short-circuit, enabling said electronics sub-assembly to be safely removed from said housing.
An autotransformer-style voltage regulator comprising a housing, at least one winding, a plurality of taps on said winding and electronic control elements for automatically selecting among said taps, wherein:
- said electronic control elements are mounted in an electronics sub-assembly;
- and,
- said electronics sub-assembly is adapted to be removed from and replaced into said housing.
Dependencies are inferred from the claim text.