Impulse direction detector for ac power systems
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United States of America Patent
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Dec 14, 1993
Grant Date -
N/A
app pub date -
Jul 22, 1992
filing date -
Jul 22, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An impulse direction detector for AC power systems determines the direction of high-frequency impulses on an AC (alternating current) power line by measuring impulse parameters on each side of a low-pass filter inserted in series with the power line. The low-pass filter is formed by two capacitors and a series inductance. The series inductance is formed by placing a magnetic core around the power line. The impulse parameters are measured on either side of the magnetic core and are then transmitted to a microprocessor. The microprocessor determines if the impulse is above a threshold level and which side of the magnetic core the impulse originated from. The microprocessor then displays the direction of the impulse and communicates the result to other digital systems.
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