Harmonics survey system

Details Harmonics survey system Harmonics survey system

1997-11-04

1999-11-30

Ballato, Josie

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Analysis of complex waves

324520, 324529, 324623, G01R 2106

Patent

active

059948906

ABSTRACT:
A harmonics survey system includes an induction coil arranged so as to cross over a magnetic flux generated by a current passing a distribution line to be surveyed and adapted to detect a detection current caused by an electro motive force in proportion to the current passing the distribution line, a harmonics detection unit operatively connected to the induction coil and adapted to detect a fundamental component and a harmonic component of the detection current detected by the induction coil, a harmonic current content operation unit for operating the harmonic current content of the harmonic component with respect to the fundamental component detected by the harmonic detection unit, and an indication unit for indicating the harmonic current content operated by the harmonic current operation unit.

REFERENCES:
patent: 5170114 (1992-12-01), Lowenstein
patent: 5347464 (1994-09-01), McEachern
patent: 5365164 (1994-11-01), Lowenstein
patent: 5754440 (1998-05-01), Cox

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