Method and system for providing protective relay functions
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United States of America Patent
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Jan 7, 1997
Issued Date -
N/A
app pub date -
Mar 16, 1995
filing date -
Jul 7, 1993
priority date (Note) -
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Abstract
In a relay protective system a method of providing volts per Hz, loss of field, ground differential, phase distance and over voltage protective relay functions. In addition, the inventive method provides an improved method to selectively block any of the above functions in response to input contacts and selectively activate output contacts in response to operation of the above functions using programmable inputs and outputs.
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