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Partial discharge ultrahigh frequency, ultrasonic wave and light pulse combined detection system and method for GIS

A joint detection and ultrasonic technology, applied in the direction of testing using optical methods, testing using acoustic measurement, and measuring electricity, etc., can solve problems such as the inability to mutually corroborate signal sources.

Pending Publication Date: 2019-03-29
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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Problems solved by technology

However, the sensor of this utility model can only detect the electromagnetic wave signal generated by partial discharge, and it can be used independently with the ultrasonic signal detection sensor, which cannot mutually corroborate the signal source

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  • Partial discharge ultrahigh frequency, ultrasonic wave and light pulse combined detection system and method for GIS
  • Partial discharge ultrahigh frequency, ultrasonic wave and light pulse combined detection system and method for GIS
  • Partial discharge ultrahigh frequency, ultrasonic wave and light pulse combined detection system and method for GIS

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Embodiment Construction

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below, obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0038]Principle of the present invention: Based on the existing built-in GIS UHF partial discharge sensor structure, Mach-Zehnder optical fiber interference is used to detect GIS partial discharge ultrasonic signals, and a fluorescent optical fiber is comprehensively arranged as an optical detector to detect the optical pulse signal of GIS partial discharge , the combination of the three is designed into an integrated GIS built-in partial discharge combined sensor with simultaneous measurement of UHF, ultrasonic, and optica...

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Abstract

The invention relates to a partial discharge ultrahigh frequency, ultrasonic wave and light pulse combined detection system and method for a GIS. The partial discharge ultrahigh frequency, ultrasonicwave and light pulse combined detection system for the GIS comprises a monitored object GIS, an ultrahigh frequency, ultrasonic wave and light pulse integrated sensor, a transmission optical fiber, acoaxial cable, a 3dB coupler, a light source, a multi-channel photoelectric conversion and amplifier device, a filtering and amplifier device, a multi-channel data acquisition and storage device, a control and display device and a printing device; and the ultrahigh frequency, ultrasonic wave and light pulse integrated sensor is an integrated combined sensor capable of measuring partial discharge of an ultrahigh frequency, an ultrasonic wave and a light pulse signal simultaneously and is installed and arranged on a shell of the monitored object GIS in a built-in mode. Compared with the prior art, the partial discharge ultrahigh frequency, ultrasonic wave and light pulse combined detection system has the advantages of being simple, practical, reliable, capable of reducing electromagnetic interference and mutually proving signal sources and the like.

Description

technical field [0001] The invention relates to the field of GIS partial discharge detection, in particular to a built-in GIS partial discharge UHF, ultrasonic and light pulse combined detection system and method. Background technique [0002] The measurement of partial discharge is based on various phenomena produced by partial discharge, and the state of partial discharge is characterized by the physical quantity that can express the phenomenon. In addition to the transfer of charges and the loss of electrical energy, the process of partial discharge also produces electromagnetic radiation, ultrasonic waves, light emission, heat generation, and new products. Corresponding to these phenomena, the detection methods of partial discharge can be divided into two categories: electrical measurement method and non-electrical measurement method. Non-electrical measurement methods mainly include ultrasonic detection method, optical measurement method, infrared detection method, che...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/1209G01R31/1218G01R31/1254
Inventor 司文荣傅晨钊陆启宇陈璐高凯徐鹏黄华袁鹏
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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