Underload tapchanging voltage regulators for ease of field replacement and for improved operator safety
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United States of America Patent
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May 23, 2006
Grant Date -
May 19, 2005
app pub date -
May 3, 2004
filing date -
Jun 13, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Under load tapchanging voltage regulators with source and load connections, series and shunt transformers, switching devices for causing selectable levels of electric power to flow in either direction between the series and shunt transformers, and tapchanger controls for sensing the voltage at said load connections and causing the switching devices to select proper electric power flows so as to maintain desired voltages at the load connections.
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