Impulse direction detector for ac power systems

Details Impulse direction detector for ac power systems Impulse direction detector for ac power systems

1992-07-22

1993-12-14

Nguyen, Vinh

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Transient or portion of cyclic

324127, G01R 1914

Patent

active

052706370

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.

REFERENCES:
patent: 3753089 (1973-08-01), Gunn et al.
patent: 3986115 (1976-10-01), Huang
patent: 3986116 (1976-10-01), Smith et al.
patent: 4187461 (1980-02-01), Cox
patent: 4642563 (1987-02-01), McEachern et al.
patent: 4754407 (1988-06-01), Nolan
patent: 4992725 (1991-02-01), Komatsu et al.

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