Co-controller for controlling an LTC transformer with a standard voltage regulator control
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United States of America Patent
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-
Sep 12, 1995
Grant Date -
N/A
app pub date -
Dec 15, 1992
filing date -
Dec 15, 1992
priority date (Note) -
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Abstract
A co-controller provides communication between a standard voltage regulator controller and an LTC transformer, to enable the standard controller to be used in the operation of the LTC transformer. The co-controller generally consists of an interface circuit and a control circuit. The interface circuit receives status signals pertaining to the operation of an LTC transformer, as well as control signals from a voltage regulator controller, and buffers these signals for presentation to the control circuit. The control circuit is microprocessor based, and modifies the input signals from the interface circuit to provide the appropriate control signals required for the operation of the LTC transformer. The control circuit also implements a number of functions not available through a standard controller, such as current balance paralleling, overvoltage protection and correction for faults.
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