DETERMINATION DEVICE AND METHOD FOR OPERATING CHARACTERISTICS OF CIRCUIT BREAKER OF GAS INSULATION SWITCHGEAR(GIS)
PURPOSE: A gas insulation switchgear cut-off part characteristic measurement apparatus and method are provided to measure the operation characteristic of a cut-off part in a real load state during regular operation of gas insulation switchgear, thereby minimizing measurement errors and improving the...
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Main Authors | , , , |
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Format | Patent |
Language | English Korean |
Published |
02.12.2011
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Subjects | |
Online Access | Get full text |
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Summary: | PURPOSE: A gas insulation switchgear cut-off part characteristic measurement apparatus and method are provided to measure the operation characteristic of a cut-off part in a real load state during regular operation of gas insulation switchgear, thereby minimizing measurement errors and improving the reliability of measurement data. CONSTITUTION: A sensor(211) senses the cut-off part opening/closing operation of driving gas insulation switchgear and outputs a characteristic signal. A state judgment part(240) kerf-fits the characteristic signal outputted from the sensor. An operation characteristic change rate of the cut-off part is outputted by extracting slope of the kerf-fitted characteristic signal. The state judgment part determines an opening or closing state of the cut-off part from the calculated operation characteristic change rate. A soundness judgment part(215) judges the operation soundness of the cut-off part. The soundness judgment part comprises a differentiator(221), an FFT(Fast Fourier Transform) converter(228), a wavelet converter(225), and an operation part(230). |
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Bibliography: | Application Number: KR20100063480 |