CN202502204U - GIS internal discharge test detection system - Google Patents
GIS internal discharge test detection system Download PDFInfo
- Publication number
- CN202502204U CN202502204U CN2012201162974U CN201220116297U CN202502204U CN 202502204 U CN202502204 U CN 202502204U CN 2012201162974 U CN2012201162974 U CN 2012201162974U CN 201220116297 U CN201220116297 U CN 201220116297U CN 202502204 U CN202502204 U CN 202502204U
- Authority
- CN
- China
- Prior art keywords
- resistance
- pulse current
- detection system
- gis
- internal discharge
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 37
- 238000012360 testing method Methods 0.000 title claims abstract description 29
- 230000008878 coupling Effects 0.000 claims abstract description 18
- 238000010168 coupling process Methods 0.000 claims abstract description 18
- 238000005859 coupling reaction Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000001228 spectrum Methods 0.000 claims description 16
- 238000002604 ultrasonography Methods 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a GIS internal discharge test detection system, which is installed inside a GIS. The system comprises a test high-voltage loop and a partial discharge detection assembly. Specifically, the test high-voltage loop includes a step-up transformer, a water resistor, a coupling capacitance voltage divider, a pulse current detection resistor and a tip plate electrode; and the partial discharge detection assembly consists of an ultrahigh frequency broadband sensor, an ultrasonic transducer, a pulse current partial discharge detection instrument, a high-speed digital oscilloscope, an ultrasonic partial discharge detection instrument and a frequency analyzer. Compared with the prior art, the technology employed in the utility model enables the detection system to have advantages of security and reliability as well as synchronized observation of different signals and the like.
Description
Technical field
The utility model relates to a kind of discharge test pick-up unit, especially relates to a kind of GIS internal discharge test detection system.
Background technology
Along with constant development of economy, to power supply reliability require increasingly high.Gas insulated combined electric appliance equipment (GIS) is as the visual plant of electric system, and the performance of GIS also receives strict more requirement.Shelf depreciation is the important parameter with the GIS insulating property, is the sign and the form of expression of insulation degradation.Detect the insulation defect that the GIS shelf depreciation can find that it is inner early stage.
Chinese patent publication number CN2620372; Open day on June 9th, 2004; The name of innovation and creation is called " local discharge detection device among the GIS ", and this application case discloses a kind of pick-up unit of the GIS of being used for Partial Discharge Detection, comprises the GIS body, is fixed on GIS inner uhf sensor and grounding switch; Detecting instrument is connected with uhf sensor, grounding switch through concentric cable, thereby realizes the detection to the GIS shelf depreciation.Its weak point is that detecting instrument lacks protective device, brings hidden danger to safety.
Summary of the invention
The purpose of the utility model is exactly to provide a kind of GIS internal discharge safe and reliable, that can observe the mutual variation relation of unlike signal synchronously to test detection system for the defective that overcomes above-mentioned prior art existence.
The purpose of the utility model can realize through following technical scheme: a kind of GIS internal discharge test detection system, and this system is installed on GIS inside, and this system comprises that testing the high tension loop drawn game puts detection components,
Described test high tension loop comprises that step-up transformer, water resistance, coupling capacitance voltage divider, pulse current detect resistance and sharp plate electrode; The input end of described step-up transformer connects external ac power source; Output terminal connects water resistance, coupling capacitance voltage divider and pulse current respectively and detects resistance; Described pulse current detects resistance and is connected with water resistance through sharp plate electrode, and described water resistance is connected with the coupling capacitance voltage divider;
Described office puts detection components and comprises that ultrahigh frequency broadband sensor, ultrasonic sensor, pulse current office put detector, high-speed figure oscillograph, ultrasound wave office and put detector and spectrum analyzer; Described ultrahigh frequency broadband sensor is connected with spectrum analyzer; Described ultrasonic sensor is arranged on the sharp plate electrode; The output terminal of ultrasonic sensor connects ultrasound wave office and puts detector; Said pulse current office puts detector and connects pulse current respectively and detect resistance and coupling capacitance voltage divider, and described high-speed figure oscillograph connects ultrasound wave office respectively and puts detector, spectrum analyzer and coupling capacitance voltage divider.
Described water resistance is the resistance of resistance 130k Ω.
Described high-speed figure oscillograph is the four-way oscillograph of the high sampling rate of each passage greater than 5GSa/s, analog bandwidth 1GHz, sensitivity 1mV/div.
Described spectrum analyzer is for detecting the spectrum analyzer of frequency band 0～1.8GHz.
Described uhf sensor is for detecting the sensor of sensitive volume 300MHz～1GHz.
Described ultrasonic sensor is for detecting the ultrasonic sensor of sensitive volume 10kHz～100kHz.
Described pulse current detects resistance for detecting the detection resistance of sensitive volume＜1MHz.
Compared with prior art, the utility model prevents that at the water resistance of test high tension loop access 130k Ω the instantaneous large-current when interpolar discharge punctures from damaging detecting instrument, has protected step-up transformer and detecting instrument; The utility model ultrahigh frequency, ultrasound wave, pulse current detection signal and test high-voltage signal are fully synchronous, can observe the mutual variation relation of unlike signal.
Description of drawings
Fig. 1 is the utility model system architecture synoptic diagram.
Among the figure, 1 for pulse current detects resistance, and 2 is the ultrahigh frequency broadband sensor, and 3 is ultrasonic sensor; 4 put detector for pulse current office, and 5 is the high-speed figure oscillograph, and 6 put detector for ultrasound wave office, and 7 is spectrum analyzer; 8 is the coupling capacitance voltage divider, and 9 is sharp plate electrode, and 10 is water resistance.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is elaborated.
Embodiment
As shown in Figure 1; A kind of GIS internal discharge test detection system; This system is installed on GIS inside, and this system comprises that testing the high tension loop drawn game puts detection components, and the test high tension loop comprises that step-up transformer, water resistance 10, coupling capacitance voltage divider 8, pulse current detect resistance 1 and sharp plate electrode 9; The input end of step-up transformer connects external ac power source; Output terminal connects water resistance 10, coupling capacitance voltage divider 8 and pulse current respectively and detects resistance 1, and pulse current detects resistance 1 and is connected with water resistance 10 through sharp plate electrode 9, and water resistance 10 is connected with coupling capacitance voltage divider 8; Office puts detection components and comprises that ultrahigh frequency broadband sensor 2, ultrasonic sensor 3, pulse current office put detector 4, high-speed figure oscillograph 5, ultrasound wave office and put detector 6 and spectrum analyzer 7; Ultrahigh frequency broadband sensor 2 is connected with spectrum analyzer 7; Ultrasonic sensor 3 is arranged on the sharp plate electrode 9; The output terminal of ultrasonic sensor 3 connects ultrasound wave office and puts detector 6; Pulse current office puts detector 4 and connects pulse current detection resistance 1 and coupling capacitance voltage divider 8 respectively, and high-speed figure oscillograph 5 connects ultrasound wave office respectively and puts detector 6, spectrum analyzer 7 and coupling capacitance voltage divider 8.
The scheme that above-mentioned test high tension loop adopts power frequency supply to boost can be avoided the high frequency interference that adopts the frequency conversion resonance vibration power supply to bring.Instantaneous large-current when puncturing for limiting contingent interpolar discharge prevents that the earth potential lifting from damaging detecting instrument, at the water resistance 10 of high tension loop access 130k Ω, protection step-up transformer and detecting instrument.The test high tension loop can produce the 50Hz ac high-voltage of 0～50kV, and magnitude of voltage can be kept watch on through the low pressure output of coupling capacitance voltage divider 8, and the discharge fixed phase is also taken from the voltage divider low-voltage output.The test high tension loop detects resistance 1 ground connection through pulse current, simultaneously to pressure regulator, testing transformer ground connection.
High-speed figure oscillograph 5 is a four-way, and the high sampling rate of single channel is greater than 5GSa/s, and analog bandwidth is 1GHz, the little 1mV/div of sensitivity.It is 0～1.8GHz that spectrum analyzer 7 detects frequency band, can be set to zero bandwidth scanning, arrowband scanning, spectrum scan isotype.The detection sensitive volume of ultrahigh frequency broadband sensor 2 is 300MHz～1GHz, and the detection sensitive volume of ultrasonic sensor 3 is 10kHz～100kHz, and pulse current detects the detection sensitive volume＜1MHz of resistance 1.Between above-mentioned ultrahigh frequency, ultrasound wave, pulse current detection signal and the test high-voltage signal is fully synchronous, can observe the mutual variation relation of unlike signal.
Claims (7)
1. a GIS internal discharge is tested detection system, and this system is installed on GIS inside, it is characterized in that, this system comprises that testing the high tension loop drawn game puts detection components,
Described test high tension loop comprises that step-up transformer, water resistance, coupling capacitance voltage divider, pulse current detect resistance and sharp plate electrode; The input end of described step-up transformer connects external ac power source; Output terminal connects water resistance, coupling capacitance voltage divider and pulse current respectively and detects resistance; Described pulse current detects resistance and is connected with water resistance through sharp plate electrode, and described water resistance is connected with the coupling capacitance voltage divider;
Described office puts detection components and comprises that ultrahigh frequency broadband sensor, ultrasonic sensor, pulse current office put detector, high-speed figure oscillograph, ultrasound wave office and put detector and spectrum analyzer; Described ultrahigh frequency broadband sensor is connected with spectrum analyzer; Described ultrasonic sensor is arranged on the sharp plate electrode; The output terminal of ultrasonic sensor connects ultrasound wave office and puts detector; Said pulse current office puts detector and connects pulse current respectively and detect resistance and coupling capacitance voltage divider, and described high-speed figure oscillograph connects ultrasound wave office respectively and puts detector, spectrum analyzer and coupling capacitance voltage divider.
2. a kind of GIS internal discharge test detection system according to claim 1 is characterized in that described water resistance is the resistance of resistance 130k Ω.
3. a kind of GIS internal discharge test detection system according to claim 1 is characterized in that, described high-speed figure oscillograph is the four-way oscillograph of the high sampling rate of each passage greater than 5GSa/s, analog bandwidth 1GHz, sensitivity 1mV/div.
4. a kind of GIS internal discharge test detection system according to claim 1 is characterized in that described spectrum analyzer is for detecting the spectrum analyzer of frequency band 0～1.8GHz.
5. a kind of GIS internal discharge test detection system according to claim 1 is characterized in that described uhf sensor is for detecting the sensor of sensitive volume 300MHz～1GHz.
6. a kind of GIS internal discharge test detection system according to claim 1 is characterized in that described ultrasonic sensor is for detecting the ultrasonic sensor of sensitive volume 10kHz～100kHz.
7. a kind of GIS internal discharge test detection system according to claim 1 is characterized in that described pulse current detects resistance for detecting the detection resistance of sensitive volume＜1MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201162974U CN202502204U (en) | 2012-03-25 | 2012-03-25 | GIS internal discharge test detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201162974U CN202502204U (en) | 2012-03-25 | 2012-03-25 | GIS internal discharge test detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502204U true CN202502204U (en) | 2012-10-24 |
Family
ID=47038814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201162974U Expired - Lifetime CN202502204U (en) | 2012-03-25 | 2012-03-25 | GIS internal discharge test detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202502204U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197213A (en) * | 2013-03-29 | 2013-07-10 | 国家电网公司 | Partial discharge measurement system |
| CN103278789A (en) * | 2013-04-26 | 2013-09-04 | 国家电网公司 | Simulative discharger for GIS (gas-insulated switchgear) partial discharge detection |
| CN103344887A (en) * | 2013-05-30 | 2013-10-09 | 国家电网公司 | Testing method suitable for GIS equipment partial discharge detection |
| CN103558528A (en) * | 2013-11-14 | 2014-02-05 | 国家电网公司 | Partial discharge ultrahigh frequency detection system and method |
| CN103605051A (en) * | 2013-11-19 | 2014-02-26 | 国家电网公司 | Gas insulated metal tip defect device for partial discharge test under impact voltage |
| CN104049209A (en) * | 2014-06-30 | 2014-09-17 | 国网上海市电力公司 | Portable water resistance type large-current rising device |
| WO2015027664A1 (en) * | 2013-08-26 | 2015-03-05 | 云南电力试验研究院（集团）有限公司电力研究院 | Method for testing mainframe performance of different types of partial discharge detectors based on analog voltage signal injection |
| CN104535908A (en) * | 2015-01-06 | 2015-04-22 | 国家电网公司 | Combined electric appliance electrified detection system based on ultrasound and oscilloscope technology |
| CN104569763A (en) * | 2015-01-06 | 2015-04-29 | 国家电网公司 | Multi-means-integrated charged detection system for combined electric appliance |
| CN111426923A (en) * | 2020-04-30 | 2020-07-17 | 国网上海市电力公司 | A High Voltage Discharge Detection System Based on Artificial Climate Chamber |
| CN112557984A (en) * | 2020-11-27 | 2021-03-26 | 国网上海市电力公司 | Test device for verifying direct current PD ultra-wide band detection system |
| CN114859189A (en) * | 2022-04-27 | 2022-08-05 | 国网上海市电力公司 | Breakdown discharge test system for graphite fiber adjacent insulator |
-
2012
- 2012-03-25 CN CN2012201162974U patent/CN202502204U/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197213A (en) * | 2013-03-29 | 2013-07-10 | 国家电网公司 | Partial discharge measurement system |
| CN103278789B (en) * | 2013-04-26 | 2015-09-23 | 国家电网公司 | GIS office puts and detects simulation discharger |
| CN103278789A (en) * | 2013-04-26 | 2013-09-04 | 国家电网公司 | Simulative discharger for GIS (gas-insulated switchgear) partial discharge detection |
| CN103344887A (en) * | 2013-05-30 | 2013-10-09 | 国家电网公司 | Testing method suitable for GIS equipment partial discharge detection |
| US9513360B2 (en) | 2013-08-26 | 2016-12-06 | The Electric Power Research Institute of Yunnan Power Grid Company Limited | Method for testing mainframe performance of different types of partial discharge detectors based on analog voltage signal injection |
| WO2015027664A1 (en) * | 2013-08-26 | 2015-03-05 | 云南电力试验研究院（集团）有限公司电力研究院 | Method for testing mainframe performance of different types of partial discharge detectors based on analog voltage signal injection |
| CN103558528A (en) * | 2013-11-14 | 2014-02-05 | 国家电网公司 | Partial discharge ultrahigh frequency detection system and method |
| CN103605051A (en) * | 2013-11-19 | 2014-02-26 | 国家电网公司 | Gas insulated metal tip defect device for partial discharge test under impact voltage |
| CN103605051B (en) * | 2013-11-19 | 2015-12-02 | 国家电网公司 | The partial discharge test most advanced and sophisticated defect device of gas-insulated metal under surge voltage |
| CN104049209B (en) * | 2014-06-30 | 2016-05-18 | 国网上海市电力公司 | The large electric current current lifting device of a kind of Portable water resistor-type |
| CN104049209A (en) * | 2014-06-30 | 2014-09-17 | 国网上海市电力公司 | Portable water resistance type large-current rising device |
| CN104569763A (en) * | 2015-01-06 | 2015-04-29 | 国家电网公司 | Multi-means-integrated charged detection system for combined electric appliance |
| CN104535908A (en) * | 2015-01-06 | 2015-04-22 | 国家电网公司 | Combined electric appliance electrified detection system based on ultrasound and oscilloscope technology |
| CN111426923A (en) * | 2020-04-30 | 2020-07-17 | 国网上海市电力公司 | A High Voltage Discharge Detection System Based on Artificial Climate Chamber |
| CN112557984A (en) * | 2020-11-27 | 2021-03-26 | 国网上海市电力公司 | Test device for verifying direct current PD ultra-wide band detection system |
| CN114859189A (en) * | 2022-04-27 | 2022-08-05 | 国网上海市电力公司 | Breakdown discharge test system for graphite fiber adjacent insulator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202502204U (en) | GIS internal discharge test detection system | |
| CN203811754U (en) | An enclosed type gas insulation combined electric appliance partial discharge detection device | |
| CN103675623B (en) | GIS partial discharge detection method and system under a kind of surge voltage | |
| CN103605053B (en) | Local discharge of gas-insulator switchgear test unit and method under surge voltage | |
| CN103913679B (en) | High-tension switch cabinet partial discharge monitoring system | |
| WO2020125090A1 (en) | Transformer monitoring system and method | |
| Ren et al. | Transient Earth Voltage Measurement in PD Detection of Artificial Defect Models in $\hbox {SF} _ {6} $ | |
| CN102590718A (en) | System for GIS (Global Information System) partial discharge measurement and VFTO (Very Fast Transient Overvoltage) measurement | |
| CN204142943U (en) | Transient earth voltage sensor sensitivity check device | |
| CN202676858U (en) | Partial discharge test system under impulse voltage | |
| CN203572883U (en) | Novel intelligent frequency-conversion large-current grounding impedance measuring instrument | |
| CN105606979A (en) | Device for simulating and detecting local discharge of GIS (Geographic Information System) equipment | |
| CN201666935U (en) | Winding deformation tester using analyzing method of frequency response method | |
| JP2008216145A (en) | Partial discharge detection method | |
| CN110398675A (en) | A method and system for measuring power frequency and impulse superimposed voltage waveforms | |
| CN203811751U (en) | Power equipment partial discharge experimental system based on comparison fitting analysis | |
| CN105891689A (en) | Partial discharge integrated probe based on capacitance voltage division method VFTO measurement sensor | |
| CN205539343U (en) | Integration probe is put in office based on electric capacity divides platen press VFTO measuring transducer | |
| CN203037716U (en) | Transformer and reactor entrance VFTO high-frequency signal test device for GIS transformer station | |
| CN206258539U (en) | Voltage transformer turn-to-turn short circuit detection means | |
| CN107462760A (en) | A kind of high-voltage switch gear transient state earth testing system being used under forceful electric power magnetic environment | |
| CN203773009U (en) | High-voltage switch cabinet partial discharge on-line monitoring system | |
| CN110045199A (en) | A kind of EFT/ESD/CS analysis of electromagnetic interference instrument | |
| KR102413919B1 (en) | Partial discharge monitoring system and patial discharge monitoring method | |
| CN204595062U (en) | A kind of electric line voltage on-line measurement system based on pincerlike coaxial capacitance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |
|
| CX01 | Expiry of patent term |