Power transfer relay circuitry and method of phase measurement
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United States of America Patent
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-
Mar 17, 1981
Grant Date -
N/A
app pub date -
May 10, 1979
filing date -
May 10, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Power transfer relay circuitry is disclosed for providing synchronous transfer of power such as from an auxiliary source or system to a motor or motor bus; the circuitry effects the transfer of power when the phase difference between the motor bus and the auxiliary power source is very nearly zero degrees.
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