A four-point acoustic location method for gil/gis breakdown faults

A technology for sound localization and faults, applied in the direction of using acoustic measurement for testing, instruments, testing dielectric strength, etc., can solve problems affecting on-site construction progress, etc., and achieve important scientific research and practical value, reliable monitoring, and strong practicability.

Active Publication Date: 2021-03-02
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +3
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  • Application Information

AI Technical Summary

Problems solved by technology

Since GIL / GIS includes multiple components and multiple air chambers, and is fully enclosed, once a breakdown discharge fault occurs during the withstand voltage test, it must be disassembled for maintenance. If a large area of ​​dismantling inspection is carried out, it will inevitably affect the construction progress on site

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  • A four-point acoustic location method for gil/gis breakdown faults
  • A four-point acoustic location method for gil/gis breakdown faults
  • A four-point acoustic location method for gil/gis breakdown faults

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Embodiment Construction

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0030] figure 1 As an embodiment of the present invention, the present invention provides a four-point acoustic location method for locating GIL / GIS fault breakdown points.

[0031] Four microphone sensors are used to collect the breakdown sound signal synchronously to obtain the moment when the breakdown sound reaches each microphone sensor, and the GIL / GIS breakdown position is located by using the time difference of the breakdown sound reachin...

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Abstract

The invention discloses a GIL / GIS breakdown fault four-point acoustic location method. The method is characterized in that four microphone sensors are used for synchronously acquiring breakdown soundsignals, and acquiring moments at which breakdown direct sound arrives at microphones, and the GIL / GIS breakdown position is located according to the difference of time when the breakdown sound arrives at the microphones. The invention provides a rapid, non-contact and stable sound source location method capable of avoiding reflected sound interference, which is used for locating GIL / GIS field voltage-resistant breakdown faults in order to monitor the potential safety hazard of a running GIL / GIS accurately, stably and reliably. The method fills up the researching blank of high-voltage electricequipment in the patrolling field, and has high practicability and very important scientific research and practical value.

Description

technical field [0001] The invention relates to the field of fault location, in particular to the acoustic location of the voltage breakdown fault point of a GIL / GIS pipe gallery in a power system. Background technique [0002] With the construction of high-voltage and ultra-high-voltage power grids, the demand for power system capacity and energy continues to increase, and higher and higher requirements are placed on the reliability and economy of the power system. In recent years, two types of equipment, gas-insulated metal-enclosed switch (GIS) and gas-insulated metal-enclosed transmission line (GIL), have been used in high-voltage substations due to their advantages of large transmission capacity, stable performance, easy maintenance, high reliability, and small space occupation. usage is increasing. According to the requirements of relevant standards, in order to fully assess the main insulation of GIL / GIS equipment, it is necessary to conduct an AC withstand voltage t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12
CPCG01R31/1209G01R31/1254
Inventor 杨景刚刘通腾云马勇赵科李洪涛王静君刘咏飞宋思齐李玉杰刘媛杨騉肖焓艳
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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