LOCATING OF PARTIAL-DISCHARGE-GENERATING FAULTS
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Abstract
A method of locating incipient faults that generate partial discharges in an AC power distribution system includes detecting at least one spike in a PD pattern generated by such system; getting the voltage wave of the AC power in the system; detecting a phase of such spike with respect to the voltage of the AC power; and locating an incipient fault where such phase is below a predetermined threshold. An apparatus includes at least one sensor of electrical pulses, means for getting a synchronism signal with a power supply of the power distribution system, and modules adapted to carry out the method.
32 Citations
28 Claims
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1-14. -14. (canceled)
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15. A method of locating incipient faults that generate partial discharges in an AC power distribution system, comprising:
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detecting at least one spike in a partial discharge pattern generated by such system; getting a voltage wave of AC power in the system; detecting a phase of the spike with respect to voltage of the AC power; and locating an incipient fault where the phase is below a predetermined threshold. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification