CN202995018U - Calibrating device of partial discharge detecting device - Google Patents
Calibrating device of partial discharge detecting device Download PDFInfo
- Publication number
- CN202995018U CN202995018U CN 201220624483 CN201220624483U CN202995018U CN 202995018 U CN202995018 U CN 202995018U CN 201220624483 CN201220624483 CN 201220624483 CN 201220624483 U CN201220624483 U CN 201220624483U CN 202995018 U CN202995018 U CN 202995018U
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- insulated switchgear
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- 238000010168 coupling process Methods 0.000 claims abstract description 43
- 238000005859 coupling reaction Methods 0.000 claims abstract description 43
- 230000008878 coupling Effects 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 239000004020 conductor Substances 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 17
- 239000012212 insulator Substances 0.000 claims description 12
- 230000035945 sensitivity Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004088 simulation Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract 6
- 239000003990 capacitor Substances 0.000 abstract 4
- 238000009413 insulation Methods 0.000 abstract 3
- 230000000007 visual effect Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 7
- 238000003745 diagnosis Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000003909 pattern recognition Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
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- Testing Relating To Insulation (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The utility model discloses a calibrating device of a partial discharge detecting device, which comprises the following components: an external coupling capacitor, a partial discharging detector and gas insulation metal enclosed switch equipment, wherein, the coupling capacitor is grounded through a serial detection resistor at the grounded end. The high-voltage end is connected with the gas insulation metal enclosed switch equipment through a diameter-expanded lead. The partial discharging detector is connected with the coupling capacitor and the detection resistor for acquiring a signal from the detection resistor and directly displaying the visual discharging amount pC value. The gas insulation metal enclosed switch equipment simulates the fault types in various conditions, and transmits various partial discharging signals to the partial discharging detector through the coupling capacitor. The calibrating device of the partial discharge detecting device has the following functions: calibrating GIS ultrahigh frequency and ultrasonic wave partial discharging device, further analyzing the monitored data, obtaining a corresponding fault type and severe degree of the fault, determining final operation state of the GIS, and guiding maintenance strategy of the GIS.
Description
Technical field
The utility model relates to the electrical engineering technical field, in particular, relates to the calibrating installation that detecting instrument is put in a kind of office.
Background technology
GIS(Gas-Insulated metal-enclosed Switchgear, Cubicle Gas-Insulated Switchgear), mainly that bus, isolating switch, Current Transmit, voltage transformer pt, disconnector and lightning arrester etc. are all combined, the switchyard that namely often can see also is high voltage distribution installation.GIS Partial discharge signal can occur in fault as last, and Partial discharge signal corresponding to various fault has certain difference characteristic.In order to guarantee the normal stable operation of GIS, need to analyze Partial discharge signal, analyze the order of severity of its fault type and fault, be used for instructing the Strategies of Maintenance of GIS.
At present, when GIS is moved, detection mode is put in office commonly used two kinds: superfrequency mode and ultrasound wave mode, GIS office is placed on the line monitoring and also adopts the superfrequency mode, but existing GIS superfrequency and ultrasonic partial discharge device quality are uneven, some are difficult to detect Partial discharge signal, though some can detect Partial discharge signal and but can not analyze, and can not determine the final running status of GIS.Office is placed on the continuous quickening that the line monitoring device is installed paces along with the GIS superfrequency, due to the data of monitoring can not further be analyzed, the order of severity of fault type and fault can't be described clearly, determines the final running status of GIS.
Therefore, how GIS superfrequency and ultrasonic partial discharge device are examined and determine, data to monitoring are further analyzed, obtain corresponding fault type and the order of severity of fault, determine the final running status of GIS, be used for instructing the Strategies of Maintenance of GIS, become those skilled in the art's problem demanding prompt solution.
The utility model content
In view of this, the utility model provides a kind of office to put the calibrating installation of detecting instrument, GIS superfrequency and ultrasonic partial discharge device are examined and determine, data to monitoring are further analyzed, obtain corresponding fault type and the order of severity of fault, determine the final running status of GIS, be used for instructing the Strategies of Maintenance of GIS.
For achieving the above object, the utility model provides following technical scheme:
The calibrating installation of detecting instrument is put in a kind of office, comprising: detector and Cubicle Gas-Insulated Switchgear are put in external coupling condenser, office, wherein:
By sealing in the detection impedance earth, high-pressure side is connected with described Cubicle Gas-Insulated Switchgear by expanded diameter conductor described coupling condenser at earth terminal;
Described office puts detector and is connected with described detection impedance with described coupling condenser, obtains signal in described detection impedance, directly shows Apparent discharge magnitude pC value;
The fault type of the various situations of described Cubicle Gas-Insulated Switchgear simulation passes to described office by described coupling condenser with various Partial discharge signals and puts detector.
Wherein, described Cubicle Gas-Insulated Switchgear specifically comprises:
The center conductor of described coupling condenser, expanded diameter conductor, sleeve pipe and Cubicle Gas-Insulated Switchgear is connected, and consists of a part that adds hydraulic circuit;
Be connected with described bobbin seal, add hydraulic circuit to what fault type was simulated;
The described hydraulic circuit that adds comprises two groups of tri-station isolating switch, current transformer, voltage transformer (VT) and two air chamber SP1 and SP2 and several disc insulators that are used for placing fault.
Preferably, the conductor in described air chamber SP1 and SP2 is detachable, and has boring on described conductor.
Preferably, the described pressue device that adds hydraulic circuit is the voltage transformer (VT) of 220kV, and the capacity of described voltage transformer (VT) is 2000VA, and it can slowly be forced into the phase voltage of 1.3 times from zero.
Preferably, when carrying out the transducer sensitivity calibrating, the superfrequency sensor is fixed in the plug hole place of different described disc insulators.
Preferably, when carrying out the transducer sensitivity calibrating, ultrasonic sensor is fixed in not existing together of described Cubicle Gas-Insulated Switchgear shell.
Wherein, the electric capacity of described coupling condenser is 100pF.
Via above-mentioned technical scheme as can be known, compared with prior art, the utility model openly provides a kind of office to put the calibrating installation of detecting instrument, comprise: detector and Cubicle Gas-Insulated Switchgear are put in external coupling condenser, office, wherein: by sealing in the detection impedance earth, high-pressure side is connected with described Cubicle Gas-Insulated Switchgear by expanded diameter conductor described coupling condenser at earth terminal; Described office puts detector and is connected with described detection impedance with described coupling condenser, obtains signal in described detection impedance, directly shows Apparent discharge magnitude pC value; The fault type of the various situations of described Cubicle Gas-Insulated Switchgear simulation passes to described office by described coupling condenser with various Partial discharge signals and puts detector.Adopt this device that GIS superfrequency and ultrasonic partial discharge device are examined and determine, the data of monitoring are further analyzed, obtain corresponding fault type and the order of severity of fault, determine the final running status of GIS, be used for instructing the Strategies of Maintenance of GIS.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to the accompanying drawing that provides other accompanying drawing.
Fig. 1 is the structural representation that the calibrating installation of detecting instrument is put in the utility model embodiment disclosed a kind of office;
Fig. 2 is the further structural representation that the calibrating installation of detecting instrument is put in the utility model embodiment disclosed a kind of office;
Wherein: detector, 103-Cubicle Gas-Insulated Switchgear, 201-sleeve pipe, 202-tri-station isolating switch 1,203-disc insulator, 204-SP1 are put in 101-coupling condenser, 102-office, detachable conductor, boring, 205-SP2 on conductor, detachable conductor, boring on conductor, 206-press change, 207-tri-station isolating switch 2.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses the calibrating installation that detecting instrument is put in a kind of office, comprise: detector and Cubicle Gas-Insulated Switchgear are put in external coupling condenser, office, wherein: by sealing in the detection impedance earth, high-pressure side is connected with Cubicle Gas-Insulated Switchgear by expanded diameter conductor coupling condenser at earth terminal; Office puts detector and is connected with the detection impedance with coupling condenser, obtains signal in the detection impedance, directly shows Apparent discharge magnitude pC value; The fault type of the various situations of Cubicle Gas-Insulated Switchgear simulation is put detector by coupling condenser with the various Partial discharge signal office of passing to.Adopt this device that GIS superfrequency and ultrasonic partial discharge device are examined and determine, the data of monitoring are further analyzed, obtain corresponding fault type and the order of severity of fault, determine the final running status of GIS, be used for instructing the Strategies of Maintenance of GIS.
See also accompanying drawing 1, put the structural representation of the calibrating installation of detecting instrument for the utility model embodiment disclosed a kind of office.The utility model embodiment discloses the calibrating installation that detecting instrument is put in a kind of office, concrete structure comprises: detector 102 and Cubicle Gas-Insulated Switchgear 103 are put in external coupling condenser 101, office, wherein: by sealing in the detection impedance earth, high-pressure side is connected with Cubicle Gas-Insulated Switchgear 103 by expanded diameter conductor coupling condenser 101 at earth terminal; Office puts detector 102 and is connected with the detection impedance with coupling condenser 101, obtains signal in the detection impedance, directly shows Apparent discharge magnitude pC value; The fault type of the various situations of Cubicle Gas-Insulated Switchgear 103 simulation is put detector 102 by coupling condenser with the various Partial discharge signal office of passing to.Adopt this device that GIS superfrequency and ultrasonic partial discharge device are examined and determine, the data of monitoring are further analyzed, obtain corresponding fault type and the order of severity of fault, determine the final running status of GIS, be used for instructing the Strategies of Maintenance of GIS.
Adopt this device that GIS superfrequency and ultrasonic partial discharge device are examined and determine, the data of monitoring are further analyzed, obtain corresponding fault type and the order of severity of fault, determine the end-state of GIS, be used for instructing the Strategies of Maintenance of GIS.
See also accompanying drawing 2, put the further structural representation of the calibrating installation of detecting instrument for the utility model embodiment disclosed a kind of office.The utility model embodiment discloses the calibrating installation that detecting instrument is put in a kind of office, concrete structure comprises: detector 102 and Cubicle Gas-Insulated Switchgear 103 are put in external coupling condenser 101, office, wherein: by sealing in the detection impedance earth, high-pressure side is connected with Cubicle Gas-Insulated Switchgear 103 by expanded diameter conductor coupling condenser 101 at earth terminal; Office puts detector 102 and is connected with the detection impedance with coupling condenser 101, obtains signal in the detection impedance, directly shows Apparent discharge magnitude pC value; The fault type of the various situations of Cubicle Gas-Insulated Switchgear 103 simulation is put detector 102 by coupling condenser with the various Partial discharge signal office of passing to.
Preferably, described Cubicle Gas-Insulated Switchgear 103 specifically comprises: coupling condenser, expanded diameter conductor, sleeve pipe and Cubicle Gas-Insulated Switchgear center conductor are connected, and consist of a part that adds hydraulic circuit; Add hydraulic circuit and comprise two groups of tri-station isolating switch, current transformer, voltage transformer (VT) and two air chamber SP1 and SP2 and several disc insulators that are used for placing fault.
Preferably, the conductor in described air chamber SP1 and SP2 is detachable, and has boring on described conductor.
Preferably, the described pressue device that adds hydraulic circuit is the voltage transformer (VT) of 220kV, and the capacity of described voltage transformer (VT) is 2000VA, and it can slowly be forced into the phase voltage of 1.3 times from zero.
Preferably, when carrying out the transducer sensitivity calibrating, the superfrequency sensor is fixed in the plug hole place of different described disc insulators.
Preferably, when carrying out the transducer sensitivity calibrating, ultrasonic sensor is fixed in not existing together of described Cubicle Gas-Insulated Switchgear shell.
The utility model embodiment discloses the calibrating installation that detecting instrument is put in a kind of office, adopt this device that GIS superfrequency and ultrasonic partial discharge device are examined and determine, data to monitoring are further analyzed, obtain corresponding fault type and the order of severity of fault, determine the final running status of GIS, be used for instructing the Strategies of Maintenance of GIS.
Preferably, the electric capacity of described coupling condenser is 100pF.
In the utility model, what mainly describe is the calibrating to transducer sensitivity, the calibrating of fault type and the calibrating of the fault order of severity, and concrete verification process is with reference to as follows:
the calibrating of transducer sensitivity: see also accompanying drawing 2, in SP1 or the built-in fault of SP2 cavity, and be filled with SF6 gas to rated pressure, disconnector in tri-station isolating switch 1 and 2 closes, pressing the pressurization of change secondary side, pass through coupling condenser, detect the impedance drawn game and put Partial discharge signal Apparent discharge magnitude pC value corresponding to the detector built-in fault of test, the superfrequency sensor is fixed in different disc insulator pouring holes places, ultrasonic sensor is fixed in the different local of GIS shell, sensor is connected with respective host, test superfrequency and ultrasonic signal under this fault, regulate the type of fault and the size of discharge, realize the sensitivity calibrating of GIS superfrequency and ultrasonic partial discharge device.
The calibrating of fault type: see also accompanying drawing 2, in SP1 or the built-in fault of SP2 cavity, and be filled with SF6 gas to rated pressure, the grounding switch that closes in tri-station isolating switch 1, the equal ground connection of sleeve pipe and coupling condenser.The superfrequency sensor is fixed in different disc insulator pouring holes places, ultrasonic sensor is fixed in the different local of GIS shell, sensor is connected with respective host, disconnector in tri-station isolating switch 2 closes, pressing the pressurization of change secondary side, until discharge signal occurs, test superfrequency and ultrasonic signal under this fault, result and the built-in fault type of fault type diagnosis are compared, realize the calibrating of fault type under two kinds of test modes, can realize the calibrating of various faults type.
The calibrating of the fault order of severity: see also accompanying drawing 2, in SP1 or the built-in fault of SP2 cavity, and be filled with SF6 gas to rated pressure, the grounding switch that closes in tri-station isolating switch 1, the equal ground connection of sleeve pipe and coupling condenser.The superfrequency sensor is fixed in different disc insulator pouring holes places, ultrasonic sensor is fixed in the different local of GIS shell, sensor is connected with respective host, disconnector in tri-station isolating switch 2 closes, pressing the change secondary side slowly to pressurize, until fault punctures, test superfrequency and the ultrasonic signal of different phase under this fault, result and the actual discharge degree of the diagnosis of the fault order of severity are compared, realize the calibrating of the fault order of severity under two kinds of test modes, can realize the calibrating of the various faults type order of severity.Grounding switch in also can not closing tri-station isolating switch 1 in this stage, and the disconnector that closes is monitored Apparent discharge magnitude pC value simultaneously in pressure process.
The utility model discloses a kind of office and put the calibrating installation of detecting instrument, be used for the calibrating of GIS superfrequency and ultrasonic partial discharge device, comprise: the 220kV sleeve pipe, the single-phase tri-station isolating switch of 220kV, single-phase current transformer, single-phase potential transformer (mutual inductor capacity 2000VA), disc insulator is some, and detector is put in the coupling condenser drawn game.
Voltage transformer (VT) capacity 2000VA in the utility model, pressurization directly adds from the mutual inductor secondary side, induces high pressure at primary side, and voltage can be added to the phase voltage of 1.3 times, makes pressurized equipment simple.After in tri-station isolating switch, disconnector pulled open, sleeve pipe and GIS body were thrown off, and made GIS leak outside partly not charged, had greatly promoted the security of verification system.The disc insulator plug hole that only leaks outside in this device, all the other position metal flange full-shields can effectively stop the external interference signal to enter the superfrequency sensor, and then improve the anti-interference of measuring system.Can simulate various typical faults in two test cavitys, can realize also can realizing the calibrating to superfrequency and ultrasonic investigation system sensitivity to the diagnosis of superfrequency and ultrasonic investigation systematic analysis software, also can realize the pattern-recognition to the fault order of severity.
In sum, the utility model embodiment discloses the calibrating installation that detecting instrument is put in a kind of office, comprise: detector and Cubicle Gas-Insulated Switchgear are put in external coupling condenser, office, wherein: by sealing in the detection impedance earth, high-pressure side is connected with Cubicle Gas-Insulated Switchgear by expanded diameter conductor coupling condenser at earth terminal; Office puts detector and is connected with the detection impedance with coupling condenser, obtains signal in the detection impedance, directly shows Apparent discharge magnitude pC value; The fault type of the various situations of Cubicle Gas-Insulated Switchgear simulation is put detector by coupling condenser with the various Partial discharge signal office of passing to.Adopt this device that GIS superfrequency and ultrasonic partial discharge device are examined and determine, the data of monitoring are further analyzed, obtain corresponding fault type and the order of severity of fault, determine the final running status of GIS, be used for instructing the Strategies of Maintenance of GIS.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. the calibrating installation of detecting instrument is put in an office, it is characterized in that, comprising: detector and Cubicle Gas-Insulated Switchgear are put in external coupling condenser, office, wherein:
By sealing in the detection impedance earth, high-pressure side is connected with described Cubicle Gas-Insulated Switchgear by expanded diameter conductor described coupling condenser at earth terminal;
Described office puts detector and is connected with described detection impedance with described coupling condenser, obtains signal in described detection impedance, directly shows Apparent discharge magnitude pC value;
The fault type of the various situations of described Cubicle Gas-Insulated Switchgear simulation passes to described office by described coupling condenser with various Partial discharge signals and puts detector.
2. device according to claim 1, is characterized in that, described Cubicle Gas-Insulated Switchgear specifically comprises:
The center conductor of described coupling condenser, expanded diameter conductor, sleeve pipe and described Cubicle Gas-Insulated Switchgear is connected, and consists of a part that adds hydraulic circuit;
Be connected with described bobbin seal, add hydraulic circuit to what fault type was simulated;
The described hydraulic circuit that adds comprises two groups of tri-station isolating switch, current transformer, voltage transformer (VT) and two air chamber SP1 and SP2 and several disc insulators that are used for placing fault.
3. device according to claim 2, is characterized in that, the conductor in described air chamber SP1 and SP2 is detachable, and has boring on described conductor.
4. device according to claim 2, is characterized in that, the described pressue device that adds hydraulic circuit is the voltage transformer (VT) of 220kV, and the capacity of described voltage transformer (VT) is 2000VA, and it can slowly be forced into the phase voltage of 1.3 times from zero.
5. device according to claim 2, is characterized in that, when carrying out the transducer sensitivity calibrating, the superfrequency sensor is fixed in the plug hole place of different described disc insulators.
6. device according to claim 2, is characterized in that, when carrying out the transducer sensitivity calibrating, ultrasonic sensor is fixed in not existing together of described Cubicle Gas-Insulated Switchgear shell.
7. device according to claim 1, is characterized in that, the electric capacity of described coupling condenser is 100pF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624483 CN202995018U (en) | 2012-11-21 | 2012-11-21 | Calibrating device of partial discharge detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624483 CN202995018U (en) | 2012-11-21 | 2012-11-21 | Calibrating device of partial discharge detecting device |
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| Publication Number | Publication Date |
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| CN202995018U true CN202995018U (en) | 2013-06-12 |
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| CN 201220624483 Expired - Fee Related CN202995018U (en) | 2012-11-21 | 2012-11-21 | Calibrating device of partial discharge detecting device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103336259A (en) * | 2013-07-17 | 2013-10-02 | 国家电网公司 | Detecting system and method for partial discharge detecting sensor of GIS (gas insulated switchgear) |
| CN103344934A (en) * | 2013-07-15 | 2013-10-09 | 国家电网公司 | Method and system for detecting and verifying partial discharge of power transformer through ultrasonic sensors |
| CN103529416A (en) * | 2013-10-12 | 2014-01-22 | 国家电网公司 | Method and Device for laboratory simulation test of electric equipment on-line detection device |
| CN103630863A (en) * | 2013-11-26 | 2014-03-12 | 国家电网公司 | Device and system for verifying insulation detection sensitivity of switch equipment |
| CN105301457A (en) * | 2015-11-23 | 2016-02-03 | 国网重庆市电力公司电力科学研究院 | GIS real fault simulation control test system |
| CN105467282A (en) * | 2015-11-23 | 2016-04-06 | 国网重庆市电力公司电力科学研究院 | GIS true-type fault simulation test system |
| CN106707048A (en) * | 2015-11-12 | 2017-05-24 | 中国电力科学研究院 | GIS combined electric appliance intelligent component performance detection device |
| CN108427068A (en) * | 2018-03-29 | 2018-08-21 | 云南电网有限责任公司电力科学研究院 | A kind of partial discharge of switchgear detection device and method |
| CN108445360A (en) * | 2018-03-29 | 2018-08-24 | 云南电网有限责任公司电力科学研究院 | A kind of partial discharge of switchgear positioning device and method |
| CN111239662A (en) * | 2020-02-06 | 2020-06-05 | 云南电网有限责任公司电力科学研究院 | Live calibration device and method for partial discharge monitoring equipment |
| CN112363100A (en) * | 2020-11-11 | 2021-02-12 | 贵州电网有限责任公司 | Fault detection device for state monitoring sensor |
-
2012
- 2012-11-21 CN CN 201220624483 patent/CN202995018U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344934A (en) * | 2013-07-15 | 2013-10-09 | 国家电网公司 | Method and system for detecting and verifying partial discharge of power transformer through ultrasonic sensors |
| CN103336259B (en) * | 2013-07-17 | 2016-08-31 | 国家电网公司 | The detecting system of local discharge of gas-insulator switchgear detection sensor and method |
| CN103336259A (en) * | 2013-07-17 | 2013-10-02 | 国家电网公司 | Detecting system and method for partial discharge detecting sensor of GIS (gas insulated switchgear) |
| CN103529416A (en) * | 2013-10-12 | 2014-01-22 | 国家电网公司 | Method and Device for laboratory simulation test of electric equipment on-line detection device |
| CN103529416B (en) * | 2013-10-12 | 2017-06-27 | 国家电网公司 | The laboratory simulation test device and its test method of electrical equipment on-line measuring device |
| CN103630863A (en) * | 2013-11-26 | 2014-03-12 | 国家电网公司 | Device and system for verifying insulation detection sensitivity of switch equipment |
| CN106707048A (en) * | 2015-11-12 | 2017-05-24 | 中国电力科学研究院 | GIS combined electric appliance intelligent component performance detection device |
| CN106707048B (en) * | 2015-11-12 | 2019-10-15 | 中国电力科学研究院 | A kind of GIS combination electric appliance intelligent assembly device for detecting performance |
| CN105467282A (en) * | 2015-11-23 | 2016-04-06 | 国网重庆市电力公司电力科学研究院 | GIS true-type fault simulation test system |
| CN105301457A (en) * | 2015-11-23 | 2016-02-03 | 国网重庆市电力公司电力科学研究院 | GIS real fault simulation control test system |
| CN108427068A (en) * | 2018-03-29 | 2018-08-21 | 云南电网有限责任公司电力科学研究院 | A kind of partial discharge of switchgear detection device and method |
| CN108445360A (en) * | 2018-03-29 | 2018-08-24 | 云南电网有限责任公司电力科学研究院 | A kind of partial discharge of switchgear positioning device and method |
| CN111239662A (en) * | 2020-02-06 | 2020-06-05 | 云南电网有限责任公司电力科学研究院 | Live calibration device and method for partial discharge monitoring equipment |
| CN112363100A (en) * | 2020-11-11 | 2021-02-12 | 贵州电网有限责任公司 | Fault detection device for state monitoring sensor |
| CN112363100B (en) * | 2020-11-11 | 2023-10-20 | 贵州电网有限责任公司 | Fault detection device of state monitoring sensor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20201121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |