CN201576071U - Partial discharge monitoring device of gas insulated switchgear - Google Patents
Partial discharge monitoring device of gas insulated switchgear Download PDFInfo
- Publication number
- CN201576071U CN201576071U CN2009202008638U CN200920200863U CN201576071U CN 201576071 U CN201576071 U CN 201576071U CN 2009202008638 U CN2009202008638 U CN 2009202008638U CN 200920200863 U CN200920200863 U CN 200920200863U CN 201576071 U CN201576071 U CN 201576071U
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- partial discharge
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- 238000012806 monitoring device Methods 0.000 title claims description 11
- 238000012545 processing Methods 0.000 claims abstract description 23
- 239000012212 insulator Substances 0.000 claims description 11
- 238000000746 purification Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 4
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 4
- 238000004458 analytical method Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 9
- 239000004020 conductor Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The utility model relates to a device for monitoring partial discharge caused by internal defects of a gas insulated switchgear. The device includes a UHF (ultrahigh frequency) sensor, an external interference signal filter, and a host, wherein the host mainly includes a data processing module, a partial discharge alarming module and an atlas and liquid crystal display module; the UHF sensor adopts UHF signals to have communication with the data processing module on the host through the external interference signal filter; and the data processing module is communicated with the atlas and liquid crystal display module and the partial discharge alarming module. The device can perform online detection to all types of electric discharge in a real time manner, determine the partial discharge position, record the historical data of partial discharge, and conduct the trend analysis.
Description
Technical field
The utility model relates to a kind of device that is used for the partial discharge phenomenon that the detected gas insulation in combined electric appliance causes because of inherent vice.
Background technology
Development along with China's Electric Power Industry; particularly UHV (ultra-high voltage) and extra-high voltage The Application of Technology; the floor area and the spatial volume of gas insulated combined electrical equipment (GIS) are little; easy for installation; reliable; easy to maintenance; characteristics such as the time between overhauls(TBO) is long are by the general application of power consumer; but the detected gas insulation in combined electric appliance is totally-enclosed combination of power equipment; in case accident occurs; the consequence that causes is much more serious than the unlimited equipment of separate type; fault correction time is also longer; therefore it is crucial the detected gas insulation in combined electric appliance being got operational monitoring; not only need conscientiously to carry out conventional preventive trial; and want installation and measuring gas insulated combined electrical equipment on-Line Monitor Device or system; measure the operating state of insulation of detected gas insulation in combined electric appliance (before insulation fault takes place; tend to occur the phenomenon of shelf depreciation); in time find various possible unusual or fault omens, in time it is handled.Detected gas insulation in combined electric appliance insulation fault mainly contains following a few class: 1. solid insulating material inherent vice: as remain in disc insulator inner or with the air gap of conductor intersection; 2. residual free conducting particle in the equipment: as kish chip or metallic particles; 3. conductive surface protrusion, as burr, wedge angle etc.: corona discharge easily takes place in this type of defective; 4. conductor loose contact: can cause apparatus local discharge; On the screen layer of conductor because a variety of causes: form the suspension electrode discharge.The generation of shelf depreciation is at times sometimes, differs and measure surely in the scene.So when detecting,, will think not have shelf depreciation if partial discharge phenomenon does not take place on-the-spot at that time the detection with portable instrument, may judge by accident, cause leaving over potential safety hazard.
Summary of the invention
Goal of the invention of the present utility model is to detect the defective that exists in order to solve existing portable instrument, provide a kind of online constantly detection all kinds of shelf depreciations, determine partial discharge position, record shelf depreciation historical data and the local discharge of gas-insulator switchgear monitoring device that carries out trend analysis.
In order to realize the foregoing invention purpose, the utility model has adopted following technical scheme:
The local discharge of gas-insulator switchgear monitoring device comprises that uhf sensor, external interference signal filter and main frame constitute; Wherein main frame mainly is made of data processing module, shelf depreciation alarm module and collection of illustrative plates LCD MODULE, uhf sensor is gathered ultra-high frequency signal by the data processing module on the external interference signal filter connection main frame, and data processing module is communicated with collection of illustrative plates LCD MODULE and shelf depreciation alarm module.
As preferably, described external interference signal filter removes ultra-high frequency signal and makes an uproar, purification, processing and amplifying, and is transferred to main frame by cable.
As preferably, described data processing module converts ultra-high frequency signal to digital signal and compares processing, specifically be that data processing module is changed the ultra-high frequency signal after amplifying through filtering, convert digital signal to, digital signal lane database backup and and for the previous period in backed up data compare, the form of result relatively with collection of illustrative plates, the development trend that is shelf depreciation shows on the liquid crystal display module, determines whether to drive the shelf depreciation alarm module simultaneously and reports to the police.
As preferably, the external interference signal filter mainly comprises the bandpass filter of 1000MHZ-1500MHZ.
Adopted the local discharge of gas-insulator switchgear monitoring device of technique scheme, its advantage is: 1. the uhf sensor antijamming capability is strong, the accurate positioning of playing a game and putting; 2. by the signal of measuring is done spectrum analysis, discern different insulation defect types, can do online detection for a long time, concentrated the real-time detection function of on-line system, and can carry out trend analysis fault.Remedy portable office and put the situation that detecting instrument is judged by accident easily, concentrated the flexible of Portable PD On-Line detecting instrument simultaneously again, can arbitrarily tear open and move, remedied the expensive cost of on-line system.
Description of drawings
Fig. 1: the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with Fig. 1 embodiment of the present utility model is made a detailed explanation.
Local discharge of gas-insulator switchgear monitoring device as shown in Figure 1 comprises that uhf sensor, external interference signal filter and main frame constitute, and wherein main frame mainly is made of data processing module, shelf depreciation alarm module and collection of illustrative plates LCD MODULE.Uhf sensor is gathered ultra-high frequency signal by the data processing module on the external interference signal filter connection main frame, and data processing module is communicated with collection of illustrative plates LCD MODULE and shelf depreciation alarm module.
During use, utilize uhf sensor to gather the inner ultra-high frequency signal of local discharge of gas-insulator switchgear monitoring device, be generally the signal of 500-1500MHZ.Be transferred to the external interference signal filter by cable, the external interference signal filter mainly is made of the bandpass filter of 1000MHZ-1500MHZ, and the ultra-high frequency signal that the external interference signal filter collects high frequency sensors removes and makes an uproar, be transferred in the main frame by cable after the purification, processing and amplifying.Data processing module in the main frame is changed the ultra-high frequency signal after amplifying through filtering, convert digital signal to, specifically be that digital signal and Transistor-Transistor Logic level after the conversion are compared synchronously, signal supplied with digital signal processing module is relatively carried out digital processing in digital signal processing module.Digital signal lane database backup and and for the previous period in backed up data compare, the form of result relatively with collection of illustrative plates, the development trend that is shelf depreciation shows on the liquid crystal display module, also determines whether to drive the shelf depreciation alarm module simultaneously and reports to the police.
The foregoing description only is a this patent embodiment preferably, and the structure that all employing the technical program are described, feature and the variation on its spiritual principle, modification all belong to the protection domain of this patent.
Claims (4)
1. the local discharge of gas-insulator switchgear monitoring device is characterized in that comprising that uhf sensor, external interference signal filter and main frame constitute; Wherein main frame mainly is made of data processing module, shelf depreciation alarm module and collection of illustrative plates LCD MODULE, uhf sensor is gathered ultra-high frequency signal by the data processing module on the external interference signal filter connection main frame, and data processing module is communicated with collection of illustrative plates LCD MODULE and shelf depreciation alarm module.
2. local discharge of gas-insulator switchgear monitoring device according to claim 1, it is characterized in that the external interference signal filter ultra-high frequency signal is removed make an uproar, purification, processing and amplifying, and be transferred to main frame by cable.
3. local discharge of gas-insulator switchgear monitoring device according to claim 1 is characterized in that data processing module converts ultra-high frequency signal digital signal to and carries out comparison process.
4. local discharge of gas-insulator switchgear monitoring device according to claim 1 is characterized in that the external interference signal filter mainly comprises the bandpass filter of 1000MHZ-1500MHZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202008638U CN201576071U (en) | 2009-11-26 | 2009-11-26 | Partial discharge monitoring device of gas insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202008638U CN201576071U (en) | 2009-11-26 | 2009-11-26 | Partial discharge monitoring device of gas insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576071U true CN201576071U (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202008638U Expired - Fee Related CN201576071U (en) | 2009-11-26 | 2009-11-26 | Partial discharge monitoring device of gas insulated switchgear |
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| CN (1) | CN201576071U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540024A (en) * | 2011-12-29 | 2012-07-04 | 昆明赛格迈电气有限公司 | Partial discharge test full system for dry type transformer |
| CN102540021A (en) * | 2010-12-20 | 2012-07-04 | 上海市电力公司 | Method for monitoring GIS (gas insulated switchgear) by aid of high-frequency partial discharge online system |
| CN102841296A (en) * | 2012-09-10 | 2012-12-26 | 江苏科技大学 | Online monitoring system and method for partial discharge of intelligent switch cabinet based on ultra-high frequency detection |
| CN103197206A (en) * | 2013-03-12 | 2013-07-10 | 重庆市电力公司电力科学研究院 | Electrical level scanning type ultrahigh frequency partial discharge on-line monitoring system and monitoring method |
| CN105116307A (en) * | 2015-09-14 | 2015-12-02 | 广西电网有限责任公司电力科学研究院 | Screening method for status early warning data abnormal values of gas insulated switchgear |
| CN105738781A (en) * | 2016-01-31 | 2016-07-06 | 国家电网公司 | 1000kV gas insulation combination electric appliance ultrahigh frequency partial discharge detection system |
| CN107356869A (en) * | 2017-07-31 | 2017-11-17 | 海南电网有限责任公司琼海供电局 | A kind of on-load tap-changer of transformer fault diagnosis system |
-
2009
- 2009-11-26 CN CN2009202008638U patent/CN201576071U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540021A (en) * | 2010-12-20 | 2012-07-04 | 上海市电力公司 | Method for monitoring GIS (gas insulated switchgear) by aid of high-frequency partial discharge online system |
| CN102540021B (en) * | 2010-12-20 | 2015-08-05 | 上海市电力公司 | High frequency office is placed on the method for wire system monitoring GIS |
| CN102540024A (en) * | 2011-12-29 | 2012-07-04 | 昆明赛格迈电气有限公司 | Partial discharge test full system for dry type transformer |
| CN102841296A (en) * | 2012-09-10 | 2012-12-26 | 江苏科技大学 | Online monitoring system and method for partial discharge of intelligent switch cabinet based on ultra-high frequency detection |
| CN103197206A (en) * | 2013-03-12 | 2013-07-10 | 重庆市电力公司电力科学研究院 | Electrical level scanning type ultrahigh frequency partial discharge on-line monitoring system and monitoring method |
| CN105116307A (en) * | 2015-09-14 | 2015-12-02 | 广西电网有限责任公司电力科学研究院 | Screening method for status early warning data abnormal values of gas insulated switchgear |
| CN105116307B (en) * | 2015-09-14 | 2018-06-12 | 广西电网有限责任公司电力科学研究院 | A kind of screening method of gas insulated combined electrical equipment status early warning data outliers |
| CN105738781A (en) * | 2016-01-31 | 2016-07-06 | 国家电网公司 | 1000kV gas insulation combination electric appliance ultrahigh frequency partial discharge detection system |
| CN107356869A (en) * | 2017-07-31 | 2017-11-17 | 海南电网有限责任公司琼海供电局 | A kind of on-load tap-changer of transformer fault diagnosis system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIANG SHAOLIN Free format text: FORMER OWNER: HANGZHOU MEIZHUO AUTOMATION TECHNOLOGY CO., LTD. Effective date: 20141024 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310025 HANGZHOU, ZHEJIANG PROVINCE TO: 261300 WEIFANG, SHANDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20141024 Address after: 261300 No. 171 village, Liang Liang village, Songzhuang Town, Shandong, Changyi Patentee after: Liang Shaolin Address before: 310025 room 29, No. two, 410 Zhuang village, Binjiang national hi tech Development Zone, Hangzhou, Zhejiang Patentee before: Hangzhou Meizhuo Automation Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20171126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |