CN109799432A - A kind of electrical equipment discharge fault positioning device - Google Patents
A kind of electrical equipment discharge fault positioning device Download PDFInfo
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- CN109799432A CN109799432A CN201910104349.2A CN201910104349A CN109799432A CN 109799432 A CN109799432 A CN 109799432A CN 201910104349 A CN201910104349 A CN 201910104349A CN 109799432 A CN109799432 A CN 109799432A
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Abstract
The present invention relates to a kind of electrical equipment discharge fault positioning devices, the device includes hyperfrequency locating module, ultrasonic sensor, ultraviolet imagery module, pocessor and storage media, the processor is connect with hyperfrequency locating module, ultrasonic sensor, ultraviolet imagery module respectively, and the ultrasonic sensor and ultraviolet imagery module are connect with storage medium respectively；The hyperfrequency locating module carries out first discharge source to electrical equipment and positions, it was found that after discharge position, ultraviolet imagery is carried out by ultraviolet imagery module, the ultrasonic sensor carries out noise reduction process to ultraviolet image, high-resolution ultraviolet image is obtained, realizes the precise positioning of discharge position.Compared with prior art, the invention has the following advantages that analysis high-tension apparatus helps operation maintenance personnel to check electric discharge hidden danger in time, improves electric power netting safe running reliability with the presence or absence of discharging and realizing precise positioning.
Description
Technical field
The present invention relates to electrical equipment discharge fault detection fields, position more particularly, to a kind of electrical equipment discharge fault
Device.
Background technique
The corona phenomenon of transmission line of electricity and substation equipment frequently results in noise and radio interference, this indication exists may
The defect part for leading to damage finds these phenomenons in time and finds out that broken parts are the important guarantors for improving Power System Reliability
Card.It will lead to the part electricity that ambient gas is usually air when the surrounding them electric field strength of energization increases to certain numerical value
From, occur corona.Corona is likely to occur in the metallic conductor, damaged transmission line or defective dielectric tip of energization.It is purple
Outer detection generates ultraviolet light when being using electrical equipment corona discharge, detects electrical apparatus external insulation with the method for detection ultraviolet light
Situation, then analyze and determine the real conditions of electrical apparatus external insulation.However the electric discharge image that ultraviolet imager obtains is often because of it
The limitation of shooting condition and its equipment, and when actual monitoring noise complexity, cannot realize corona discharge position well
Precise positioning,
Light (overwhelming majority is in ultraviolet region), sound wave, electromagnetic radiation, ozone and other byproducts are generated using corona thus
Characteristic, supplement discharge examination means, so as to be accurately detected the position of corona discharge, for high voltage electric equipment therefore
The prevention and plant maintenance of barrier have important practical significance.
China Patent No. CN205193214U discloses a kind of insulator ultraviolet pulse detection experimental rig, including, pressure regulation
The output end of device is electrically connected by isolating transformer with the input terminal of filter, the output end of filter and the input terminal of transformer
Electrical connection, the output end of transformer are linked into artificial fog chamber, one end of protective resistance and the output of transformer by protective resistance
End electrical connection, series capacitance divider between the other end and ground of protective resistance, ultraviolet light pulse detector are arranged in artificial mist
At the sidewall opening of room, an input terminal of industrial personal computer is electrically connected with the insulator that artificial fog chamber is arranged in, industrial personal computer and insulation
Connect leakage current transfer resistance between the route and ground of son connection, another input terminal and ultraviolet light pulse detection of industrial personal computer
The output end of instrument is electrically connected.The advantages of realizing highly sensitive detection insulator.The utility model is mainly for insulator arc-over
It is detected, is not suitable for all electrical equipments, and only by a kind of detection method of ultraviolet light pulse, without for purple
The shortcomings that outer imaging, is aided with other detection methods.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of electrical equipments to discharge
Fault locator.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of electrical equipment discharge fault positioning device, the device include hyperfrequency locating module, ultrasonic sensor, purple
Outer image-forming module, pocessor and storage media, the processor respectively with hyperfrequency locating module, ultrasonic sensor, purple
Outer image-forming module connection, the ultrasonic sensor and ultraviolet imagery module are connect with storage medium respectively；
The hyperfrequency locating module carries out first discharge source to electrical equipment and positions, and after finding discharge position, leads to
It crosses ultraviolet imagery module and carries out ultraviolet imagery, the ultrasonic sensor carries out noise reduction process to ultraviolet image, obtains high score
The ultraviolet image of resolution realizes the precise positioning of discharge position.
Preferably, the hyperfrequency locating module receives the high-frequency sound source signal that electric discharge generates, and detects in investigative range
Sound-source signal and the real-time instruction for being subject to signal strength or weakness.
Preferably, the ultrasonic sensor uses ultrasonic wave screening in the range of having determined that sound source, assists to determine
The best angle of ultraviolet imagery, related acoustic wave energy parameter are used for noise reduction process when ultraviolet imagery after processor is handled.
Preferably, the ultraviolet imagery module and ultrasonic sensor utilize acoustoelectric combined time difference method, to ultraviolet figure
As carrying out noise reduction process, the precise positioning of Partial Discharge Sources is realized.
Preferably, the positioning device further includes ultraviolet-cameras, and the ultraviolet-cameras is for shooting corona and surface
The ultraviolet light that radiates in discharge process is simultaneously transmitted to ultraviolet imagery module.
Preferably, the positioning device further includes gas test module, for detecting the ozone of corona generation, as office
Put the supplementary means of discharge examination.
Compared with prior art, the invention has the following advantages that
1, high using ultra-high frequency band, small but vulnerable to environmental disturbances the characteristic of decaying, confirms corona in complex device place
The approximate range of electric discharge.
2, ultraviolet imagery detection technology fast response time, is not influenced completely by solar radiation, with all weather operations
Ability, and do not influenced by environmental radiation and temperature.
3, ultrasonic wave module carries out noise reduction process for image, obtains high-resolution ultraviolet image, assists operation maintenance personnel
Detect corona discharge and surface-discharge characteristic and assessment power equipment external insulation state and pollution level.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of positioning device of the present invention.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is a part of the embodiments of the present invention, rather than whole embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work all should belong to the model that the present invention protects
It encloses.
The principle of the present invention: it is fixed that the characteristic high using ultra-high-frequency detection frequency range, decaying is small carries out the discharge source in a wide range of
Position finds after doubtful discharge position using ultraviolet imagery technology and is aided with ultrasound examination, pre- carrying out noise reduction to ultraviolet image
On the basis of processing, analysis high-tension apparatus helps operation maintenance personnel to check electric discharge in time with the presence or absence of discharging and realizing precise positioning
Hidden danger improves electric power netting safe running reliability.
Device mainly includes three kinds of functions: (1) ultra-high frequency signal decaying is smaller, but can be used for screening vulnerable to external interference
It surveys；Ultrasonic signal decaying is big, but is disturbed small, can be used for a small range screening；(2) for partial discharge signal detection using ultraviolet
Imaging is accurately positioned.After finding doubtful corona signal using ultrasonic wave, the higher ultraviolet imagery of sensitivity is preferably used
Carry out Partial discharge signal accurate positionin；(3) gas test can be used as the supplementary means of partial discharge detection, but test result is big by gas chamber
The influence of small, adsorbent and discharge capacity size should comprehensively consider.
As shown in Figure 1, a kind of electrical equipment discharge fault positioning device, which includes hyperfrequency locating module, ultrasound
Wave sensor, ultraviolet imagery module and storage medium, the hyperfrequency locating module carry out in a wide range of electrical equipment
Discharge source positioning after finding doubtful discharge position, carries out ultraviolet imagery, the ultrasonic sensor by ultraviolet imagery module
Noise reduction process is carried out to ultraviolet image, obtains high-resolution ultraviolet image, realize discharge position into certainly position.
The function of the hyperfrequency locating module includes the high-frequency sound source signal for receiving electric discharge and generating, and detects investigative range
Operation maintenance personnel generaI investigation detection sound source is assisted in interior sound-source signal and the real-time instruction for being subject to signal strength or weakness.
The function of the ultrasonic sensor includes being assisted in a small range for having determined that sound source using ultrasonic wave screening
The best angle of ultraviolet imagery is determined, at noise reduction when related acoustic wave energy parameter is used for ultraviolet imagery after computer is handled
Reason.
The ultraviolet imagery module and ultrasonic sensor utilizes acoustoelectric combined time difference method, drops to ultraviolet image
It makes an uproar processing, realizes the precise positioning of Partial Discharge Sources.
The positioning device further includes ultraviolet-cameras, and the ultraviolet-cameras is for shooting corona and surface-discharge process
The ultraviolet light of middle radiation is simultaneously transmitted to ultraviolet imagery module.
The positioning device further includes gas test module, for detecting the ozone of corona generation, is discharged as partial discharge
The supplementary means of detection.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection scope subject to.
Claims (6)
1. a kind of electrical equipment discharge fault positioning device, which is characterized in that the device includes hyperfrequency locating module, ultrasonic wave
Sensor, ultraviolet imagery module, pocessor and storage media, the processor respectively with hyperfrequency locating module, ultrasonic wave
Sensor, the connection of ultraviolet imagery module, the ultrasonic sensor and ultraviolet imagery module are connect with storage medium respectively；
The hyperfrequency locating module carries out first discharge source to electrical equipment and positions, and after finding discharge position, passes through purple
Outer image-forming module carries out ultraviolet imagery, and the ultrasonic sensor carries out noise reduction process to ultraviolet image, obtains high-resolution
Ultraviolet image, realize the precise positioning of discharge position.
2. a kind of electrical equipment discharge fault positioning device according to claim 1, which is characterized in that the hyperfrequency
Locating module receives the high-frequency sound source signal that electric discharge generates, and detects sound-source signal in investigative range and is subject to the real-time of signal strength or weakness
Instruction.
3. a kind of electrical equipment discharge fault positioning device according to claim 1, which is characterized in that the ultrasonic wave
Sensor uses ultrasonic wave screening in the range of having determined that sound source, assists the best angle for determining ultraviolet imagery, related sound wave
Energy parameter is used for noise reduction process when ultraviolet imagery after processor is handled.
4. a kind of electrical equipment discharge fault positioning device according to claim 1, which is characterized in that it is described it is ultraviolet at
As module and ultrasonic sensor realize part and put using acoustoelectric combined time difference method to ultraviolet image progress noise reduction process
The precise positioning of power supply.
5. a kind of electrical equipment discharge fault positioning device according to claim 1, which is characterized in that the positioning dress
Setting further includes ultraviolet-cameras, and the ultraviolet-cameras is used to shoot the ultraviolet light radiated during corona and surface-discharge and transmission
To ultraviolet imagery module.
6. a kind of electrical equipment discharge fault positioning device according to claim 1, which is characterized in that the positioning dress
Setting further includes gas test module, the supplementary means for detecting the ozone of corona generation, as partial discharge discharge examination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104349.2A CN109799432B (en) | 2019-02-01 | 2019-02-01 | Electrical equipment discharge fault positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910104349.2A CN109799432B (en) | 2019-02-01 | 2019-02-01 | Electrical equipment discharge fault positioning device |
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| Publication Number | Publication Date |
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| CN109799432A true CN109799432A (en) | 2019-05-24 |
| CN109799432B CN109799432B (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910104349.2A Active CN109799432B (en) | 2019-02-01 | 2019-02-01 | Electrical equipment discharge fault positioning device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034315A (en) * | 2020-08-27 | 2020-12-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Hand-held charging type partial discharge detection positioning instrument |
| CN112415345A (en) * | 2020-11-23 | 2021-02-26 | 国网辽宁省电力有限公司电力科学研究院 | Distribution insulator and peripheral electrical insulator system defect characteristic detection platform thereof |
| CN113253076A (en) * | 2021-06-25 | 2021-08-13 | 广东电网有限责任公司 | Corona detection device and method for casing of box-type electrical equipment |
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| CN112034315A (en) * | 2020-08-27 | 2020-12-04 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Hand-held charging type partial discharge detection positioning instrument |
| CN112415345A (en) * | 2020-11-23 | 2021-02-26 | 国网辽宁省电力有限公司电力科学研究院 | Distribution insulator and peripheral electrical insulator system defect characteristic detection platform thereof |
| CN113253076A (en) * | 2021-06-25 | 2021-08-13 | 广东电网有限责任公司 | Corona detection device and method for casing of box-type electrical equipment |
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| CN109799432B (en) | 2021-06-22 |
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