Electricity: power supply or regulation systems – Output level responsive – Using a transformer or inductor as the final control device
Patent
1996-09-16
1998-07-28
Sterrett, Jeffrey L.
Electricity: power supply or regulation systems
Output level responsive
Using a transformer or inductor as the final control device
323301, 323343, G05F 116
Patent
active
057866848
ABSTRACT:
A solid state voltage regulator and methods therefore are shown to include a transformer having a secondary coil, the secondary coil having a plurality of taps. A first solid state switch is connected between the regulator output and a first tap. The first switch need only have the capability of being turned on in response to a gate signal. A second solid state switch is connected between the regulator output and a second tap. The second switch has the capability of being turned on and turned off in response to gating signals. The output voltage resulting from the second tap is greater than the first tap. A controller, connected to the input, the output, the first switch and the second switch, senses the voltage present at the regulator input and output and generates gating signals in response to the sensed voltage. The voltage regulator may include several switches similar in construction and operation to the first switch. In such a regulator, the second switch is connected to the tap which results in the coil turn ratio yielding the greatest voltage compensation.
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ABB Power T&D Company Inc.
Sterrett Jeffrey L.
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