CN105759188A - UHF sensor for GIS partial discharge detection - Google Patents
UHF sensor for GIS partial discharge detection Download PDFInfo
- Publication number
- CN105759188A CN105759188A CN201610248630.XA CN201610248630A CN105759188A CN 105759188 A CN105759188 A CN 105759188A CN 201610248630 A CN201610248630 A CN 201610248630A CN 105759188 A CN105759188 A CN 105759188A
- Authority
- CN
- China
- Prior art keywords
- built
- partial discharge
- dielectric layer
- transmission
- hole
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1254—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of gas-insulated power appliances or vacuum gaps
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention discloses a UHF sensor for GIS partial discharge detection. The UHF sensor for GIS partial discharge detection includes a built-in reception disk, an epoxy dielectric layer, a grounding flange, and a transmission bar, wherein the epoxy dielectric layer is arranged at the bottom of the built-in reception disk; the top surface of the epoxy dielectric layer closely attaches to the bottom surface of the built-in reception disk; a transmission through hole is formed in the middle part of the epoxy dielectric layer; a connection through hole is formed in the middle part of the grounding flange; the bottom of the transmission bar is arranged in the transmission through hole; the middle part of the transmission bar successively penetrates through the transmission through hole and the connection through hole; and the bottom of the transmission bar is fixedly connected with a cable for signal transmission. The UHF sensor for GIS partial discharge detection can effectively monitor partial discharge in a GIS; the epoxy dielectric layer and the grounding flange can effectively perform insulating effect so as to avoid the interference of the external on detection of the built-in reception disk and enable the detection result to be more accurate; and then signals are transmitted through the transmission bar. Compared with the prior art, the technical scheme of the UHF sensor for GIS partial discharge detection has the advantages of being wider in the detection frequency band, and being higher in sensitivity and anti-interference capability.
Description
Technical field
The present invention relates to Electric Power Equipment Insulation condition diagnosing technical field, particularly relate to the type UHF sensor of a kind of GIS partial discharge detection.
Background technology
Fully closed combined electric unit (GIS) interior shelf depreciation has the breakdown characteristics being exceedingly fast, its pulse duration extremely short (being about a few nanosecond), the rise time of wave head is only about 1ns, this when there is rapid increase the partial discharge pulse on edge can inspire superfrequency electromagnetic wave, therefore can detect the GIS shelf depreciation produced by installing superfrequency sensor in GIS device.
Most GIS manufacturing firms all have employed the disc insulator with metal flange in recent years, makes electromagnetic wave be difficult to propagate outside GIS, thus is difficult to signal be detected with external sensor outside GIS.
Therefore, how can effectively receive GIS partial discharge signal, be that those skilled in the art need badly and solve the technical problem that.
Summary of the invention
It is an object of the invention to provide the type UHF sensor of a kind of GIS partial discharge detection, it is possible to effective reception GIS partial discharge signal. and ultrahigh frequency electromagnetic wave signal can be responded, and there is sufficiently high sensitivity.
For solving above-mentioned technical problem, embodiments provide the type UHF sensor of a kind of GIS partial discharge detection, including:
Built-in reception disk, described built-in reception disk is used for detecting GIS partial discharge information, is provided with transmission hole in the middle part of described built-in reception disk bottom；
Epoxy dielectric layer, described epoxy dielectric layer is arranged at described built-in reception disk bottom, and described epoxy dielectric layer end face and built-in reception disk bottom surface are close to, and are provided with transmission through hole in the middle part of described epoxy dielectric layer；
Ground connection flange, described ground connection flange is affixed to be arranged at bottom described epoxy dielectric layer, arranges connection through hole in the middle part of described ground connection flange；
Transmission pole, is arranged at bottom described transmission pole in described transmission hole, sequentially passes through described transmission through hole and connect through hole in the middle part of described transmission pole, the affixed cable being provided with for signal transmission bottom described transmission pole.
Preferably, it is connected with described cable by N connector bottom described transmission pole.
Preferably, the affixed middle part being arranged at described connection through hole, the top of described N connector.
Preferably, fixed as one by bolt between described built-in reception disk, described epoxy dielectric layer and described ground connection flange.
Preferably, the diameter of described built-in reception disk is 300mm, and thickness is 20mm.
Preferably, the diameter of described epoxy dielectric layer is 300mm, and thickness is 40mm.
Preferably, the diameter of described ground connection flange is 600mm, and thickness is 60mm.
The type UHF sensor of GIS partial discharge provided by the present invention detection, including the built-in reception disk being arranged in GIS, epoxy dielectric layer, ground connection flange and the transmission pole for signal transmission.Because built-in reception disk is arranged in GIS, therefore built-in reception disk can effectively monitor the shelf depreciation information in GIS, and because built-in reception disk be shaped as disc, therefore can have good frequency response characteristic in sufficiently wide frequency range.Epoxy dielectric layer and ground connection flange, can effectively play isolation effect, it is to avoid the extraneous detection to built-in reception disk is disturbed, and improves the accuracy of testing result, is sent out by detected signal finally by transmission pole.Compared with prior art, the technical program has wider detection frequency range, higher sensitivity and capacity of resisting disturbance.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention, the accompanying drawing used required in embodiment will be done simple introduction below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the type UHF sensor structural representation of GIS partial discharge provided by the present invention detection.
In accompanying drawing, 1 is built-in reception disk, and 2 is epoxy dielectric layer, and 3 is ground connection flange, and 4 is transmission pole, and 5 is N connector.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art under not making creative work premise, the every other embodiment obtained, broadly fall into scope.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The invention discloses the type UHF sensor of a kind of GIS partial discharge detection, including:
Built-in reception disk 1, described built-in reception disk 1 is used for detecting GIS partial discharge information, and bottom described built-in reception disk 1, middle part is provided with transmission hole；
Epoxy dielectric layer 2, described epoxy dielectric layer 2 is arranged at bottom described built-in reception disk 1, and described epoxy dielectric layer 2 end face and built-in reception disk 1 bottom surface are close to, and are provided with transmission through hole in the middle part of described epoxy dielectric layer 2；
Ground connection flange 3, described ground connection flange 3 is affixed to be arranged at bottom described epoxy dielectric layer 2, arranges connection through hole in the middle part of described ground connection flange 3；
Transmission pole 4, is arranged in described transmission hole bottom described transmission pole 4, sequentially passes through described transmission through hole and connect through hole in the middle part of described transmission pole 4, the affixed cable being provided with for signal transmission bottom described transmission pole 4.
Wherein, it will be appreciated by persons skilled in the art that by built-in reception disk 1 is used for detecting GIS partial discharge, and the signal that GIS discharges is sent out.
In the course of the work, because built-in reception disk 1 is arranged in GIS, therefore built-in reception disk 1 can effectively monitor the shelf depreciation information in GIS, and because built-in reception disk 1 be shaped as disc, therefore it can have good frequency response characteristic in frequency range sufficiently wide again.Epoxy dielectric layer 2 and ground connection flange 3, can effectively play isolation effect, it is to avoid the extraneous detection to built-in reception disk 1 is disturbed, and improves the accuracy of testing result, is sent out by detected signal finally by transmission pole 4.Compared with prior art, the technical program has wider detection frequency range, higher sensitivity and capacity of resisting disturbance.
In the present invention one specific embodiment, it is connected with described cable by N connector 5 bottom described transmission pole 4.It will be appreciated by persons skilled in the art that N connector 5 is a kind of threaded adapter, it has reliability height, vibration resistance by force, the mechanically and electrically feature such as function admirable.And N connector 5 is applicable to coaxial cable and carries out signal transmission, has good capacity of resisting disturbance, improve further detect to signal anti-interference in transmitting procedure.
In order to optimize above-described embodiment further, detected signal is made to be not subjected to external influence in transmittance process, the affixed middle part being arranged at described connection through hole, the top of described N connector 5.
In the present invention one specific embodiment, fixed as one by bolt between described built-in reception disk 1, described epoxy dielectric layer 2 and described ground connection flange 3.After above-mentioned three being fixed as one by bolt, can effectively ensure to receive disk in the course of the work, the situation not havinging displacement occurs, and ensure the stability of signal, and can effectively improve its capacity of resisting disturbance by ground connection flange 3 and epoxy dielectric layer 2, make detected signal more stable and accurate.
In order to optimize above-described embodiment, the diameter of described built-in reception disk 1 is 300mm, and thickness is 20mm.It will be understood by those skilled in the art that, built-in reception disk 1 is because to be arranged in GIS, if if therefore built-in reception disk 1 volume is excessive, then affect space in GIS, and its sensitivity will reduce, therefore the diameter of built-in reception disk 1 is set to 300mm, so can effectively expand detection frequency range scope.
Further, the diameter of described epoxy dielectric layer 2 is 300mm, and thickness is 40mm.It will be understood by those skilled in the art that, epoxy dielectric layer 2 can effectively isolate the extraneous impact for built-in reception disk 1, it is ensured that the accuracy of testing result, and again because for the consideration to product size, preferred is 300mm by the diameter of epoxy dielectric layer 2, and thickness is 40mm.
Further, the diameter of described ground connection flange 3 is 600mm, and thickness is 60mm.Earthing method is directly 600mm, and center is relative with the center of built-in reception disk 1, therefore can effectively stop the impact on built-in reception disk 1 in the external world, play the effect of protection.
The type UHF sensor of GIS partial discharge provided by the present invention detection, including the built-in reception disk 1 being arranged in GIS, epoxy dielectric layer 2, ground connection flange 3 and the transmission pole 4 for signal transmission.Because built-in reception disk 1 is arranged in GIS, therefore built-in reception disk 1 can effectively monitor the shelf depreciation information in GIS, and because built-in reception disk 1 be shaped as disc, therefore can have good frequency response characteristic in sufficiently wide frequency range.Epoxy dielectric layer 2 and ground connection flange 3, can effectively play isolation effect, it is to avoid the extraneous detection to built-in reception disk 1 is disturbed, and improves the accuracy of testing result, is sent out by detected signal finally by transmission pole 4.Compared with prior art, the technical program has wider detection frequency range, higher sensitivity and capacity of resisting disturbance.
The type UHF sensor above GIS partial discharge provided by the present invention detected is described in detail.Principles of the invention and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.It should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to the present invention carries out some improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.
Claims (7)
1. the type UHF sensor of a GIS partial discharge detection, it is characterised in that including:
Built-in reception disk (1), described built-in reception disk (1) is used for detecting GIS partial discharge information, and middle part, described built-in reception disk (1) bottom is provided with transmission hole；
Epoxy dielectric layer (2), described epoxy dielectric layer (2) is arranged at described built-in reception disk (1) bottom, described epoxy dielectric layer (2) end face and built-in reception disk (1) bottom surface are close to, and described epoxy dielectric layer (2) middle part is provided with transmission through hole；
Ground connection flange (3), affixed described epoxy dielectric layer (2) bottom that is arranged at of described ground connection flange (3), described ground connection flange (3) middle part arranges connection through hole；
Transmission pole (4), it is arranged at bottom described transmission pole in described transmission hole, described transmission pole (4) middle part sequentially passes through described transmission through hole and connects through hole, the affixed cable being provided with for signal transmission in described transmission pole (4) bottom.
2. the type UHF sensor of GIS partial discharge detection as claimed in claim 1, it is characterised in that described transmission pole (4) bottom is connected with described cable by N connector (5).
3. the type UHF sensor of GIS partial discharge detection as claimed in claim 2, it is characterised in that the affixed middle part being arranged at described connection through hole, the top of described N connector (5).
4. the type UHF sensor of GIS partial discharge detection as claimed in claim 3, it is characterized in that, described built-in reception disk (1), fixed as one by bolt between described epoxy dielectric layer (2) and described ground connection flange (3).
5. the type UHF sensor of GIS partial discharge detection as claimed in claim 4, it is characterised in that the diameter of described built-in reception disk (1) is 300mm, and thickness is 20mm.
6. the type UHF sensor of GIS partial discharge detection as claimed in claim 5, it is characterised in that the diameter of described epoxy dielectric layer (2) is 300mm, and thickness is 40mm.
7. the type UHF sensor of GIS partial discharge detection as claimed in claim 6, it is characterised in that the diameter of described ground connection flange (3) is 600mm, and thickness is 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248630.XA CN105759188A (en) | 2016-04-20 | 2016-04-20 | UHF sensor for GIS partial discharge detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610248630.XA CN105759188A (en) | 2016-04-20 | 2016-04-20 | UHF sensor for GIS partial discharge detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105759188A true CN105759188A (en) | 2016-07-13 |
Family
ID=56324441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610248630.XA Pending CN105759188A (en) | 2016-04-20 | 2016-04-20 | UHF sensor for GIS partial discharge detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105759188A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412432A (en) * | 2019-08-07 | 2019-11-05 | 国网福建省电力有限公司 | The coaxial leads structure and method of a kind of GIS partial discharge UHF signal to external radiation |
| KR20230069608A (en) * | 2021-11-12 | 2023-05-19 | 한국전기연구원 | Partial discharge measuring sensor for monitoring the vacuum level of a vacuum circuit breaker and a vacuum circuit breaker to which it is applied |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201654077U (en) * | 2010-05-06 | 2010-11-24 | 山东泰开高压开关有限公司 | Installation structure of probe for GIS partial discharge online monitor diagnosis device |
| CN202178471U (en) * | 2011-06-02 | 2012-03-28 | 平高集团有限公司 | Cable connector for built-in coupler and coupler thereof |
| CN202256595U (en) * | 2011-10-20 | 2012-05-30 | 山东电力研究院 | Partial discharge ultrahigh-frequency signal detecting sensor |
| CN102540033A (en) * | 2012-02-15 | 2012-07-04 | 江苏省电力试验研究院有限公司 | Built-in sensor for partial discharge ultrahigh frequency detection of gas insulated switchgear (GIS) |
| CN103176112A (en) * | 2013-03-28 | 2013-06-26 | 重庆大学 | Built-in ultrahigh frequency sensor for online detection of partial discharge of gas insulated switchgear |
| CN203164364U (en) * | 2013-04-23 | 2013-08-28 | 四川菲博斯科技有限责任公司 | GIS partial discharge monitoring device with built-in ultrahigh frequency sensor |
| CN204462318U (en) * | 2015-03-27 | 2015-07-08 | 江苏峰工电气科技有限公司 | For the built-in sensor that GIS partial discharge detects |
| CN205507014U (en) * | 2016-04-20 | 2016-08-24 | 国网浙江省电力公司电力科学研究院 | GIS partial discharge detector's UHF sensor |
-
2016
- 2016-04-20 CN CN201610248630.XA patent/CN105759188A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201654077U (en) * | 2010-05-06 | 2010-11-24 | 山东泰开高压开关有限公司 | Installation structure of probe for GIS partial discharge online monitor diagnosis device |
| CN202178471U (en) * | 2011-06-02 | 2012-03-28 | 平高集团有限公司 | Cable connector for built-in coupler and coupler thereof |
| CN202256595U (en) * | 2011-10-20 | 2012-05-30 | 山东电力研究院 | Partial discharge ultrahigh-frequency signal detecting sensor |
| CN102540033A (en) * | 2012-02-15 | 2012-07-04 | 江苏省电力试验研究院有限公司 | Built-in sensor for partial discharge ultrahigh frequency detection of gas insulated switchgear (GIS) |
| CN103176112A (en) * | 2013-03-28 | 2013-06-26 | 重庆大学 | Built-in ultrahigh frequency sensor for online detection of partial discharge of gas insulated switchgear |
| CN203164364U (en) * | 2013-04-23 | 2013-08-28 | 四川菲博斯科技有限责任公司 | GIS partial discharge monitoring device with built-in ultrahigh frequency sensor |
| CN204462318U (en) * | 2015-03-27 | 2015-07-08 | 江苏峰工电气科技有限公司 | For the built-in sensor that GIS partial discharge detects |
| CN205507014U (en) * | 2016-04-20 | 2016-08-24 | 国网浙江省电力公司电力科学研究院 | GIS partial discharge detector's UHF sensor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412432A (en) * | 2019-08-07 | 2019-11-05 | 国网福建省电力有限公司 | The coaxial leads structure and method of a kind of GIS partial discharge UHF signal to external radiation |
| WO2021023282A1 (en) * | 2019-08-07 | 2021-02-11 | 国网福建省电力有限公司 | Coaxial lead structure and method for outward radiation of uhf partial discharge signals in gis |
| CN110412432B (en) * | 2019-08-07 | 2022-03-08 | 国网福建省电力有限公司 | Coaxial lead structure and method for external radiation of GIS partial discharge UHF signal |
| KR20230069608A (en) * | 2021-11-12 | 2023-05-19 | 한국전기연구원 | Partial discharge measuring sensor for monitoring the vacuum level of a vacuum circuit breaker and a vacuum circuit breaker to which it is applied |
| KR102603638B1 (en) * | 2021-11-12 | 2023-11-20 | 한국전기연구원 | Partial discharge measuring sensor for monitoring the vacuum level of a vacuum circuit breaker and a vacuum circuit breaker to which it is applied |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Gao et al. | Analysis of the intrinsic characteristics of the partial discharge induced by typical defects in GIS | |
| CN104535902A (en) | Partial discharge pulse detection system | |
| CN202421420U (en) | Ultrahigh frequency and pulse current based GIS (gas insulated switchgear) partial-discharge online monitoring device | |
| CN107831410B (en) | Capacitive sleeve end screen signal detection device | |
| JP2021511480A (en) | Transformer monitoring / measurement system and method | |
| CN102175950A (en) | Mobile field partial discharge source visual detection method for GIS (gas insulated switchgear) | |
| CN203658526U (en) | Live-line detection device used for partial discharging of distribution cable | |
| KR20100090012A (en) | Partial discharge detection sensor and partial discharge detection device using the same | |
| CN202256595U (en) | Partial discharge ultrahigh-frequency signal detecting sensor | |
| CN105953911A (en) | Vibration sensor used for monitoring mechanical fault of high-voltage circuit breaker | |
| CN102967807A (en) | Insulation defect locating method | |
| Soomro et al. | Study on different techniques of partial discharge (PD) detection in power transformers winding: Simulation between paper and EPOXY resin using UHF method | |
| CN201903620U (en) | Pinpoint discharging testing system for transformer | |
| CN104849635A (en) | Partial discharge positioning system based on ultrasonic sensor array | |
| CN101833060B (en) | Positioning device for monitoring partial discharge of gas-insulater switchgear on line | |
| CN105759188A (en) | UHF sensor for GIS partial discharge detection | |
| CN205507014U (en) | GIS partial discharge detector's UHF sensor | |
| CN107807316A (en) | Local discharge detection device and system | |
| CN102540033A (en) | Built-in sensor for partial discharge ultrahigh frequency detection of gas insulated switchgear (GIS) | |
| JP7067922B2 (en) | Partial discharge detection device and partial discharge detection method | |
| CN103713244A (en) | Electrified detection device and method used for local discharging of distributing cables | |
| CN106249054A (en) | Capacitance type potential transformer and integration detection sensor thereof | |
| CN101387683A (en) | Partial discharge detecting method for potting breaker | |
| CN203981829U (en) | Local discharge detection device in a kind of high-tension switch cabinet | |
| CN204256113U (en) | Partial discharge pulse's detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |
|
| RJ01 | Rejection of invention patent application after publication |