CN109342870A - A kind of trouble-shooter applied to 10KV network distribution transformer - Google Patents

A kind of trouble-shooter applied to 10KV network distribution transformer Download PDF

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Publication number
CN109342870A
CN109342870A CN201811361644.8A CN201811361644A CN109342870A CN 109342870 A CN109342870 A CN 109342870A CN 201811361644 A CN201811361644 A CN 201811361644A CN 109342870 A CN109342870 A CN 109342870A
Authority
CN
China
Prior art keywords
microphone
transformer
trouble
shooter
network distribution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811361644.8A
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Chinese (zh)
Inventor
赵世钦
周健
黄仁金
古梅
潘云
周兴凤
陆承虎
龙玉华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Power Grid Co Ltd
Original Assignee
Guizhou Power Grid Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guizhou Power Grid Co Ltd filed Critical Guizhou Power Grid Co Ltd
Priority to CN201811361644.8A priority Critical patent/CN109342870A/en
Publication of CN109342870A publication Critical patent/CN109342870A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/62Testing of transformers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

The invention discloses a kind of trouble-shooters applied to 10KV network distribution transformer, including installing vibrating sensor and microphone on the transformer, vibrating sensor and microphone are electrically connected to single-chip microcontroller, single-chip microcontroller is connected with radio receiving transmitting module by serial port module, and radio receiving transmitting module is connected to the PC diagnostic platform of distal end.The present invention detects the failure sound of inside transformer by vibrating sensor and microphone, pass through the rattle spectrogram being collected into PC diagnostic platform and fault diagnosis is carried out to the mutation analysis of acoustic signal, when being greater than given threshold, it is determined as malfunction, differentiate more accurate, personnel without experience can also operate, easy to operate.

Description

A kind of trouble-shooter applied to 10KV network distribution transformer
Technical field
The invention belongs to transformer fault monitoring device technical fields, and in particular to one kind is applied to 10KV network distribution transformer Trouble-shooter.
Background technique
It is uniform buzz that transformer, which operates normally the sound issued, when there are shelf depreciations, electric arc for inside transformer When the failures such as electric discharge, short circuit, different sound will be issued, by acquisition sound can to equipment inside with the presence or absence of failure into Row differentiates that the fault diagnosis of 10kV network distribution transformer is taken on the transformer often by insulating bar at present, leaned against by human ear Internal sound is listened then experience to be commented to analyze and determine internal fault on bar, for babe in the wood, it is difficult to judge Transformer whether failure or judge inaccuracy.
Summary of the invention
Technical problem solved by the present invention is a kind of trouble-shooter applied to 10KV network distribution transformer is provided, with Solve above-mentioned problems of the prior art.
The technical scheme adopted by the invention is as follows: a kind of trouble-shooter applied to 10KV network distribution transformer, including peace The vibrating sensor and microphone of dress on the transformer, vibrating sensor and microphone are electrically connected to single-chip microcontroller, and single-chip microcontroller passes through Serial port module is connected with radio receiving transmitting module, and radio receiving transmitting module is connected to the PC diagnostic platform of distal end.
Preferably, a kind of above-mentioned trouble-shooter applied to 10KV network distribution transformer further includes and monolithic mechatronics Headset, headset use headset.
Preferably, above-mentioned vibrating sensor and microphone are connected to AD sampling module, AD by Simulation scale-up filter module Sampling module is connected to single-chip microcontroller.
Preferably, above-mentioned vibrating sensor is adsorbed on the transformer by magnet.
Beneficial effects of the present invention: compared with prior art, the present invention detects change by vibrating sensor and microphone Failure sound inside depressor passes through the rattle spectrogram that is collected into the mutation analysis of acoustic signal in PC diagnostic platform Fault diagnosis is carried out, when being greater than given threshold, is determined as malfunction, differentiation is more accurate, and the personnel without experience can also Operation, it is easy to operate, meanwhile, it can be answered by earphone-microphone after the sound amplification of transformer acquisition, by hearing Sound carry out artificial judgment, realize dual judgement, it is relatively reliable.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
With reference to the accompanying drawing and the present invention is described further in specific embodiment.
Embodiment 1: as shown in Figure 1, a kind of trouble-shooter applied to 10KV network distribution transformer, including it is mounted on change Vibrating sensor and microphone on depressor, vibrating sensor and microphone are electrically connected to single-chip microcontroller, and single-chip microcontroller passes through serial ports mould Block is connected with radio receiving transmitting module, and radio receiving transmitting module is connected to the PC diagnostic platform of distal end.
Preferably, a kind of above-mentioned trouble-shooter applied to 10KV network distribution transformer further includes and monolithic mechatronics Headset, headset use headset.
Preferably, above-mentioned vibrating sensor and microphone are connected to AD sampling module, AD by Simulation scale-up filter module Sampling module is connected to single-chip microcontroller.
Preferably, above-mentioned vibrating sensor is adsorbed on the transformer by magnet.
Preferably, the sensor part is closely attached to transformer surface, passes through acoustic vibration sensor and Mike's sound of the wind Sound collector detects the failure sound of inside transformer, amplifies filter to voice signal by Simulation scale-up filter module Wave sample and is wirelessly passed to by serial ports following to voice signal finally by high speed AD sampling module PC diagnostic platform carries out failure to the mutation analysis of acoustic signal by the sound audio spectrogram being collected on diagnostic platform and examines It is disconnected.Meanwhile can be answered by earphone-microphone after the sound amplification of transformer acquisition, people is carried out by the sound heard Work judgement.
When the device as shown in Figure 1 is tested, Sensor section is closely attached to transformer surface, passes through the vibration of acoustics Sensor and microphone detect the failure sound and Vibration Condition of inside transformer, by Simulation scale-up filter module to sound Signal amplifies filtering, samples finally by the high speed AD sampling module that single-chip microcontroller connects to voice signal, and pass through The data that single-chip microcontroller acquires wirelessly are passed to following PC diagnostic platform by the wireless module of serial port module connection, Fault diagnosis is carried out to the mutation analysis of acoustic signal by the sound audio spectrogram being collected on diagnostic platform, meanwhile, transformer It can be answered by earphone-microphone after the sound amplification of acquisition, artificial judgment is carried out by the sound heard.
The vibrating sensor and microphone of acoustics are mainly used for the acquisition of inside transformer vibration signal and the acquisition of sound, It is required that bottom absorbed portion requires to use magnet material, can be adsorbed automatically with transformer case, the two size is no more than 2* 2cm, weight are not more than 25g, are connected to Simulation scale-up filter module by 2.5 meters of length of transmission data wire respectively, vibrate A grab is arranged in sensor and microphone, can accomplish that people does not have to stair and sensor can be served to distribution change by grab bar Depressor outer casing bottom nearby adsorbs, and can also be removed by grab bar when removing, while grab bar is made into 3 meters of total length Three section automatic telescopic grab bars.Vibrating sensor and microphone are connected to single-chip microcontroller, single-chip microcontroller and PC diagnostic platform using wireless Data transmission, transmission range are up to 200 bandwidth and reach 20MHz, and the frequency spectrum graphics of vibrating sensor acquisition sound vibrations are answered Accomplish accurate accurate, specific scene control methods: transformer station high-voltage side bus and comparative analysis in the case of not running two kinds under the conditions of, it is miscellaneous With comparative analysis under squelch under sound environment, it is accurate accurate that the frequency spectrum graphics of microphone acquisition sound vibrations should be accomplished, specifically Live control methods: transformer station high-voltage side bus and comparative analysis in the case of not running two kinds under the conditions of, under noise environment with mute ring Comparative analysis under border.
Headset uses wear-type earphone-microphone, can be effectively isolated ambient sound influence, can clearly hear transformer institute The internal sound of outflow.
Simulation scale-up filter module, AD sampling module, serial port module, single-chip microcontroller, RS232 transceiver module are integrated into one Device, device data-interface are wirelessly connected to by the same vibrating sensor of data line, microphone, headset connection PC diagnostic platform, installation weight are less than 500g, and size is not more than 15*25cm, and rectangle, the display of single-chip microcontroller connection is using touching Touch screen display.Single-chip microcontroller is powered by battery, when detection on installation point transformer, is taken down after detection.
PC diagnostic platform can be respectively in the collected chatter of 4 channel real-time display shock sensors and microphone institute Sound spectrum figure, single bandwidth chahnel reaches 20Mhz, and can carry out video recording preservation to figure collection process, and the later period checks energy Enough repeat acquired image process.Spectral acquisition and display are accurate, and the environment that can forgo influences, and have to abnormal frequency spectrum Discriminatory analysis display function, have an expert diagnostic system, expert diagnostic system makes a concrete analysis of determining method: to operate normally transformation Spectrogram under the conditions of device is carried out as normal map when spectrogram deviates compared with spectral band when operating normally Comparison (obtains) according to previous fault experience if more than given threshold, then judges that there are failures inside equipment.
Example that the above description is merely a specific embodiment, scope of protection of the present invention is not limited thereto.It is ripe It knows the those skilled in the art in the technical scope disclosed by the present invention, change or replacement mode can be easily found, these It should be covered by the protection scope of the present invention.For this purpose, protection scope of the present invention should be with the protection model of the claim Subject to enclosing.

Claims (4)

1. a kind of trouble-shooter applied to 10KV network distribution transformer, it is characterised in that: including installing on the transformer Vibrating sensor and microphone, vibrating sensor and microphone are electrically connected to single-chip microcontroller, and single-chip microcontroller is connected with by serial port module Radio receiving transmitting module, radio receiving transmitting module are connected to the PC diagnostic platform of distal end.
2. a kind of trouble-shooter applied to 10KV network distribution transformer according to claim 1, it is characterised in that: also Including the headset with monolithic mechatronics, headset uses headset.
3. a kind of trouble-shooter applied to 10KV network distribution transformer according to claim 1, it is characterised in that: vibration It moves sensor and microphone and AD sampling module is connected to by Simulation scale-up filter module, AD sampling module is connected to single-chip microcontroller.
4. a kind of trouble-shooter applied to 10KV network distribution transformer according to claim 1, it is characterised in that: vibration Dynamic sensor is adsorbed on the transformer by magnet.
CN201811361644.8A 2018-11-15 2018-11-15 A kind of trouble-shooter applied to 10KV network distribution transformer Pending CN109342870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811361644.8A CN109342870A (en) 2018-11-15 2018-11-15 A kind of trouble-shooter applied to 10KV network distribution transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811361644.8A CN109342870A (en) 2018-11-15 2018-11-15 A kind of trouble-shooter applied to 10KV network distribution transformer

Publications (1)

Publication Number Publication Date
CN109342870A true CN109342870A (en) 2019-02-15

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110044461A (en) * 2019-04-03 2019-07-23 苏州德晟能源科技有限公司 A kind of monitor and the monitoring device for being equipped with the monitor
CN110927511A (en) * 2019-10-18 2020-03-27 云南电网有限责任公司 Power grid fault diagnosis system and method using fault waveform
CN114112005A (en) * 2021-10-28 2022-03-01 国网天津市电力公司 Transformer substation equipment abnormal sound on-line monitor
CN114578170A (en) * 2022-03-11 2022-06-03 国网江苏省电力有限公司徐州供电分公司 Signal acquisition and detection system for power transformer fault diagnosis
CN116092520A (en) * 2021-11-08 2023-05-09 苏州奥科姆自动化科技有限公司 Industrial product sound quality inspection device and detection method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202111415U (en) * 2011-06-27 2012-01-11 辽宁省电力有限公司本溪供电公司 Multi-functional combination live working device of distribution line
CN103472350A (en) * 2013-08-27 2013-12-25 武汉百楚科技有限公司 Transformer diagnosis system and diagnosis method
CN105223453A (en) * 2015-11-03 2016-01-06 广东电网有限责任公司佛山供电局 Based on substation transformer trouble-shooter and the method for multiple attribute synthetical evaluation
CN205229319U (en) * 2015-11-03 2016-05-11 广东电网有限责任公司佛山供电局 Distribution transformer failure diagnosis device based on many indexs comprehensive evaluation of
CN107748314A (en) * 2017-10-18 2018-03-02 国网重庆市电力公司北碚供电分公司 Transformer Faults Analysis system based on sound wave shock detection
CN207263869U (en) * 2017-08-30 2018-04-20 中国石油化工股份有限公司 Low-voltage cable fault tester
CN207320709U (en) * 2017-11-07 2018-05-04 杨檀 A kind of power transmission and distribution special isolation bar
CN209264875U (en) * 2018-11-15 2019-08-16 贵州电网有限责任公司 A kind of trouble-shooter applied to 10KV network distribution transformer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202111415U (en) * 2011-06-27 2012-01-11 辽宁省电力有限公司本溪供电公司 Multi-functional combination live working device of distribution line
CN103472350A (en) * 2013-08-27 2013-12-25 武汉百楚科技有限公司 Transformer diagnosis system and diagnosis method
CN105223453A (en) * 2015-11-03 2016-01-06 广东电网有限责任公司佛山供电局 Based on substation transformer trouble-shooter and the method for multiple attribute synthetical evaluation
CN205229319U (en) * 2015-11-03 2016-05-11 广东电网有限责任公司佛山供电局 Distribution transformer failure diagnosis device based on many indexs comprehensive evaluation of
CN207263869U (en) * 2017-08-30 2018-04-20 中国石油化工股份有限公司 Low-voltage cable fault tester
CN107748314A (en) * 2017-10-18 2018-03-02 国网重庆市电力公司北碚供电分公司 Transformer Faults Analysis system based on sound wave shock detection
CN207320709U (en) * 2017-11-07 2018-05-04 杨檀 A kind of power transmission and distribution special isolation bar
CN209264875U (en) * 2018-11-15 2019-08-16 贵州电网有限责任公司 A kind of trouble-shooter applied to 10KV network distribution transformer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110044461A (en) * 2019-04-03 2019-07-23 苏州德晟能源科技有限公司 A kind of monitor and the monitoring device for being equipped with the monitor
CN110927511A (en) * 2019-10-18 2020-03-27 云南电网有限责任公司 Power grid fault diagnosis system and method using fault waveform
CN114112005A (en) * 2021-10-28 2022-03-01 国网天津市电力公司 Transformer substation equipment abnormal sound on-line monitor
CN116092520A (en) * 2021-11-08 2023-05-09 苏州奥科姆自动化科技有限公司 Industrial product sound quality inspection device and detection method
CN114578170A (en) * 2022-03-11 2022-06-03 国网江苏省电力有限公司徐州供电分公司 Signal acquisition and detection system for power transformer fault diagnosis

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Inventor after: Zhao Shiqin

Inventor after: Zhang Ying

Inventor after: Zhou Jian

Inventor after: Huang Renjin

Inventor after: Gu Mei

Inventor after: Pan Yun

Inventor after: Zhou Xingfeng

Inventor after: Lu Chenghu

Inventor after: Long Yuhua

Inventor before: Zhao Shiqin

Inventor before: Zhou Jian

Inventor before: Huang Renjin

Inventor before: Gu Mei

Inventor before: Pan Yun

Inventor before: Zhou Xingfeng

Inventor before: Lu Chenghu

Inventor before: Long Yuhua

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