KR910005059A - Determination method and apparatus of power line - Google Patents

Abstract

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Description

Determination method and apparatus of power line

As this is a public information case, the full text was not included.

1 shows a schematic structure of the present invention.

2 is a view for explaining the precursor shape (Precursory phenomena) of the present invention.

3 is a diagram illustrating a zero-phase signal when a ground fault occurs.

Claims (9)

A plurality of sensors disposed at a plurality of points on the power line, detecting a video signal at the point, observing a pulse signal included in the video signal, and a sensor displaying a maximum value of the pulse signal according to the plurality of sensors A deterioration position determination device of a power line, comprising a determination device that determines whether or not there is deterioration in the vicinity. 2. An apparatus for determining a deterioration position of a power line according to claim 1, further comprising signal transmission means disposed between a plurality of sensors and the determination device for transmitting pulse signals obtained by the plurality of sensors. 2. The apparatus of claim 1, wherein the plurality of sensors observe the magnitudes of the high frequency components of a specific frequency included in the video signal at the plurality of points. 4. The apparatus of claim 3, wherein the specific frequency of the high frequency signal detected by the plurality of sensors is in the range of 5 KHz to 2000 KHz included in the video signal. The method of claim 1, wherein the sensor for detecting an image signal on a three-phase power line is provided between each phase and ground of the three-phase power line to derive a signal between the capacitor and the series circuit composed of a capacitor and a resistor. Deterioration position determination device of the power line, characterized in that consisting of terminals arranged for. 3. The apparatus according to claim 2, wherein a switch is disposed in the vicinity of the plurality of sensors detecting the video signal on the power line, and the determination device specifies and outputs the degradation position of the power line in dependence on the magnitudes of the plurality of pulse signals; Means for generating an operation signal for the switch via a signal transmission means, wherein the plurality of sensors each have means for operating the switch in response to an operation signal for the received switch; Deterioration position determination device. 7. The deterioration position determination of a power line according to claim 6, wherein the deterioration position of the power line is output in response to the pulse signal included in the video signal observed from the power line, and other information about the cause of the power line deterioration or deterioration and the cause of the pulse signal. Device. The method according to claim 6, wherein the magnitude of the pulse signal included in the video signal is observed at a plurality of points on the power line, and the switch near the deterioration position is opened when the position is designated by the magnitude of the corresponding amplitude, Deterioration position determination device of the power line, characterized in that to supply power to the power line at both ends separated. A method for determining the deterioration position of a power line, characterized in that the power line and the electric machine near the deterioration position are rearranged when the position is specified in response to a pulse signal of an image signal included in the power line at a plurality of points. ※ Note: The disclosure is based on the initial application.