CN105807176B - Laboratory simulation test device and test method for electrical equipment online detection device - Google Patents
Laboratory simulation test device and test method for electrical equipment online detection device Download PDFInfo
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- CN105807176B CN105807176B CN201610163199.9A CN201610163199A CN105807176B CN 105807176 B CN105807176 B CN 105807176B CN 201610163199 A CN201610163199 A CN 201610163199A CN 105807176 B CN105807176 B CN 105807176B
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- 238000004088 simulation Methods 0.000 title claims abstract description 74
- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 238000010998 test method Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 title abstract description 32
- 238000012806 monitoring device Methods 0.000 claims abstract description 24
- 238000004364 calculation method Methods 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 17
- 238000007781 pre-processing Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 3
- 238000013021 overheating Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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Abstract
The invention provides a laboratory simulation test method and a laboratory simulation test device for an on-line detection device of electrical equipment, aiming at the laboratory simulation test of the on-line detection device of the electrical equipment. The laboratory simulation test device of the on-line monitoring device of the electrical equipment is realized by the following ways: the laboratory simulation test device of the electrical equipment on-line monitoring device comprises an electrical equipment simulation experiment part, a fault simulation experiment part and an electrical equipment parameter measuring device, wherein waveform data of each parameter of the electrical equipment simulation experiment part and the fault simulation experiment part are collected to an industrial personal computer, FLASH software arranged in the industrial personal computer sequentially corresponds to input FALSE for calculation, corresponding change values can be distinguished and separated, and results can be obtained through analysis. The technical scheme is used for verifying the correctness, sensitivity and accuracy of the on-line detection device of the electrical equipment, and solves the research test and delivery test of the existing on-line detection device of the electrical equipment.
Description
Technical Field
The invention mainly belongs to the field of on-line detection of electrical equipment, in particular to a laboratory simulation test method and a laboratory simulation test device for an on-line detection device of the electrical equipment, which are suitable for laboratory verification tests of the performance of the on-line detection device of the electrical equipment.
Background
The on-line detection device for the electrical equipment mainly detects main performance indexes of the electrical equipment in an on-line mode, such as discharge faults, overheating faults, mechanical faults and the like of the electrical equipment. Such as: the online detection devices mainly predict faults which may occur in the operation of the electrical equipment and provide basis for realizing state maintenance of the electrical equipment. However, because the existing online detection method for the electrical equipment lacks an industrial standard and a factory test standard, some functional indexes cannot be detected, the failure probability of the field electrical equipment is low, the online detection device is difficult to capture the failure of the tested electrical equipment during operation, and the function and accuracy of the online detection method and the online detection device cannot be verified. Since the performance of the online detection method and device cannot be verified during delivery, which also gives a question to users about whether the online detection device of the electrical equipment reaches its performance index, there is an urgent need to develop a laboratory simulation test method and device for the online detection device of the electrical equipment, which are used for verifying the correctness, sensitivity and accuracy of the online detection device of the electrical equipment and solving the research test and delivery test of the current online detection device of the electrical equipment.
Disclosure of Invention
The invention provides a laboratory simulation test method and a laboratory simulation test device for an on-line detection device of electrical equipment, aiming at the laboratory simulation test of the on-line detection device of the electrical equipment.
The laboratory simulation test device of the on-line monitoring device of the electrical equipment is realized by the following ways:
the laboratory simulation test device of the on-line monitoring device of the electrical equipment comprises an electrical equipment simulation experiment part, a fault simulation experiment part and an electrical equipment parameter measuring device;
the electric equipment simulation experiment part comprises a current sensor, a voltage sensor, a temperature sensor, a pre-processing circuit, a communication control device, an experiment waveform acquisition device, a capacitive coupler, a network module, an A/D converter and an industrial personal computer which are connected with an on-line monitoring device of tested electric equipment, wherein the current sensor is connected to the communication control device through the pre-processing circuit;
the fault simulation experiment part comprises a current sensor, a voltage sensor, a temperature sensor, a network module, a waveform acquisition module and an industrial personal computer, wherein the current sensor, the voltage sensor, the temperature sensor, the network module, the waveform acquisition module and the industrial personal computer are connected with an on-line monitoring device of the tested electrical equipment, the voltage sensor is connected with the waveform acquisition device through a short-circuit switch S1, the temperature sensor is connected with the waveform acquisition device through a short-circuit switch S2, the waveform acquisition device is connected with the industrial personal computer, the industrial personal computer is connected with the network module;
the electrical equipment parameter measuring device is connected with the industrial personal computer.
The communication control device is provided with a driving circuit which is connected with a communication module arranged in the experimental waveform acquisition device.
The communication module is a 3G/4G module or a wifi module.
The pre-processing circuit comprises at least one circuit amplifier.
The invention also provides a laboratory simulation test method of the electrical equipment on-line monitoring device, which is characterized by comprising the following steps:
1) providing a laboratory simulation test device of an on-line monitoring device of electrical equipment;
2) disconnecting switches S1, S2 and S3, and collecting waveform signals of a current sensor, a voltage sensor and a temperature sensor of the electrical equipment simulation experiment part to the industrial personal computer;
3) removing a connector of the electrical equipment simulation experiment part, constructing a fault simulation experiment part, rapidly closing switches S1, S2 and S3, and collecting waveform signals of a current sensor, a voltage sensor and a temperature sensor which are in a fault for 1 second to an industrial personal computer;
rapidly closing switches S1, S2 and S3, and collecting waveform signals of a current sensor, a voltage sensor and a temperature sensor which are in failure for 3 seconds to an industrial personal computer;
4) dismantling the joint of the fault simulation experiment part in the step 3), collecting various parameters of the electrical equipment on-line monitoring device through the electrical equipment parameter measuring device, and uploading the parameters to the industrial personal computer;
5) integrating the data information of the step 2), the step 3) and the step 4) in an industrial personal computer, sequentially and correspondingly inputting FALSE (FALSE least squares) for calculation through FLASH software arranged in the industrial personal computer, and performing differential analysis corresponding to corresponding change values.
The step 2) also comprises the following processing steps:
capacitive coupling and analog-to-digital conversion: respectively and sequentially carrying out capacitive coupling processing on the waveform signals of the current sensor, the voltage sensor and the temperature sensor of the electrical equipment simulation experiment part acquired in the step 2), and then respectively and sequentially passing through an A/D converter on the processed signals to obtain digital signals with discrete time and discrete amplitude in the simulation experiment.
The invention has the beneficial effects that:
in summary, the invention develops a laboratory simulation test method and device for an on-line detection device of electrical equipment, which are used for verifying the correctness, sensitivity and accuracy of the on-line detection device of electrical equipment, and solves the research test and delivery test of the existing on-line detection device of electrical equipment. The advantages are also that:
1. the simulation test chamber can be carried out according to the type of the detected equipment, and the corresponding dielectric medium can be injected into the simulation test chamber, so that the simulation test chamber has the comparability with field operation.
2. The simulation electrode can be selected according to the needs, and the pertinence of the test is solved.
3. The simulation test result is compared with a conventional measurement method, so that the quantitative index of the test is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention:
fig. 1 is a system schematic diagram of a laboratory simulation test device of an online monitoring device for electrical equipment according to an embodiment of the present invention.
Detailed Description
The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions of the present invention are provided to explain the present invention without limiting the invention thereto.
Referring to fig. 1, a laboratory simulation test device 1 of an online monitoring device for electrical equipment comprises an electrical equipment simulation experiment part, a fault simulation experiment part and an electrical equipment parameter measuring device 2;
the electric equipment simulation experiment part comprises a current sensor 100, a voltage sensor 103, a temperature sensor 104, a pre-processing circuit 101, a communication control device 102, an experiment waveform acquisition device 105, a capacitive coupler 107, a network module 108, an A/D converter 106 and an industrial personal computer 4 which are connected with an on-line monitoring device 3 of the tested electric equipment, wherein the current sensor 100 is connected to the communication control device 102 through the pre-processing circuit 101, the communication control device 102, the voltage sensor 103 and the temperature sensor 104 are respectively connected with the experiment waveform acquisition device 105, one end of the experiment waveform acquisition device 105 is connected with the network module 108, the other end of the experiment waveform acquisition device 105 is connected with the capacitive coupler 107, the capacitive coupler 107 is connected with the industrial personal computer 4 through the A/D converter 106, and the industrial personal computer 4 is connected with;
the fault simulation experiment part comprises a current sensor 100, a voltage sensor 103, a temperature sensor 104, a network module 108, a waveform acquisition module 109 and an industrial personal computer 4, wherein the current sensor 100 is connected with the on-line monitoring device 3 of the tested electrical equipment, the voltage sensor 100 is connected with the waveform acquisition device 109 through a short-circuit switch S1, the temperature sensor 103 is connected with the waveform acquisition device 109 through a short-circuit switch S2, the waveform acquisition device 109 is connected with the industrial personal computer 4, the industrial personal computer 4 is connected with the network module 108, and the current sensor 100 is connected with the network module 108 through a short-circuit switch S3;
the electrical equipment parameter measuring device 2 is connected with an industrial personal computer 4.
The communication control device 102 is provided with a driving circuit, and the driving circuit is connected with a communication module arranged in the experimental waveform acquisition device 105.
The communication module is a 3G/4G module or a wifi module.
The pre-processing circuit 101 comprises at least one circuit amplifier.
The invention also provides a laboratory simulation test method of the electrical equipment on-line monitoring device, which is characterized by comprising the following steps:
1) providing a laboratory simulation test device 1 of an on-line monitoring device of electrical equipment;
2) disconnecting the switches S1, S2 and S3, and collecting waveform signals of a current sensor 100, a voltage sensor 103 and a temperature sensor 104 of the electrical equipment simulation experiment part to the industrial personal computer 4;
3) removing a connector of the electrical equipment simulation experiment part, constructing a fault simulation experiment part, rapidly closing switches S1, S2 and S3, and acquiring waveform signals of the current sensor 100, the voltage sensor 103 and the temperature sensor 104 which are in fault for 1 second to the industrial personal computer 4;
rapidly closing switches S1, S2 and S3, and acquiring waveform signals of the current sensor 100, the voltage sensor 103 and the temperature sensor 104 under the fault condition of 3 seconds to the industrial personal computer 4;
4) dismantling the joint of the fault simulation experiment part in the step 3), collecting various parameters of the electrical equipment online monitoring device 2 through the electrical equipment parameter measuring device 2, and uploading the parameters to the industrial personal computer 4;
5) integrating the data information of the step 2), the step 3) and the step 4) in the industrial personal computer 4, sequentially and correspondingly inputting FALSE for calculation through FLASH software arranged in the industrial personal computer 4, and performing differential analysis corresponding to corresponding change values.
The step 2) also comprises the following processing steps:
capacitive coupling and analog-to-digital conversion: respectively and sequentially carrying out capacitive coupling processing on waveform signals of the current sensor 100, the voltage sensor 103 and the temperature sensor 104 of the electrical equipment simulation experiment part acquired in the step 2), and then respectively and sequentially passing through the A/D converter 106 on the processed signals to obtain digital signals with discrete time and discrete amplitude in the simulation experiment.
The specific test method can be carried out according to different faults:
the simulation test of the discharge fault mainly verifies the local discharge online detection device and the laboratory of the audio monitoring equipment, such as the online detection device of the local discharge or the discharge fault of the electrical element in the GIS equipment or the audio monitoring equipment. The simulation test box can be made into a part of a GIS box body, electrodes are arranged inside the simulation test box to simulate the type of GIS electrical elements, an external test device adopts a power frequency high-voltage test transformer to generate high voltage to enable the internal simulation electrodes to generate partial discharge or arc discharge, and a discharge position and a discharge process are observed through a fault observation probe installed inside the external test device; the discharge amount is measured by a conventional partial discharge measuring device, and the measurement result is compared with the result detected by an online detection device of partial discharge or discharge faults or an audio monitoring device so as to verify the sensitivity and the accuracy of the device.
The simulation test of the overheating fault mainly aims at local overheating of an internal connection part of the electrical equipment and verifies an online detection device of the overheating fault. If the temperature on-line detection device in the GIS equipment is verified, at the moment, the simulation test box is made to be a part of a GIS box body, electrodes are arranged inside the simulation test box to simulate heating of a contact resistor of a GIS electrical element, and a temperature measuring device is installed in the simulation test box to measure the temperature. The external test device adopts a power frequency heavy current generator to heat the simulation contact resistor, measures the temperature through the temperature measuring device, and compares the measured result with the measured result of the temperature on-line detection device to verify the accuracy of the temperature on-line detection device.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained in the present document by using specific embodiments, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (3)
1. A laboratory simulation test device of an on-line monitoring device of electrical equipment comprises an electrical equipment simulation experiment part, a fault simulation experiment part and an electrical equipment parameter measuring device, the electric equipment simulation experiment part comprises a current sensor, a voltage sensor, a temperature sensor, a preprocessing circuit, a communication control device, an experiment waveform acquisition device, a capacitive coupler, a network module, an A/D converter and an industrial personal computer which are connected with an on-line monitoring device of the tested electric equipment, the current sensor is connected to the communication control device through the pre-processing circuit, the communication control device, the voltage sensor and the temperature sensor are respectively connected with the experimental waveform acquisition device, one end of the experimental waveform acquisition device is connected with the network module, the other end of the experimental waveform acquisition device is connected with the capacitive coupler, the capacitive coupler is connected with the industrial personal computer through the A/D converter, and the industrial personal computer is connected with the network module; the electrical equipment parameter measuring device is connected with an industrial personal computer; the communication control device is provided with a driving circuit which is connected with a communication module arranged in the experimental waveform acquisition device; the communication module is a 3G/4G module or a wifi module; the preprocessing circuit at least comprises a circuit amplifier; the fault simulation experiment part comprises a current sensor, a voltage sensor, a temperature sensor, a network module, a waveform acquisition module and an industrial personal computer which are connected with the on-line monitoring device of the tested electrical equipment, and is characterized in that: the voltage sensor is connected with the waveform acquisition device through a short-circuit switch S1, the temperature sensor is connected with the waveform acquisition device through a short-circuit switch S2, the waveform acquisition device is connected with an industrial personal computer, the industrial personal computer is connected with a network module, and the current sensor is connected with the network module through a short-circuit switch S3.
2. The laboratory simulation test method of the on-line monitoring device of the electrical equipment is characterized by comprising the following steps of:
1) providing a laboratory simulation test device of the on-line monitoring device of the electrical equipment according to claim 1;
2) disconnecting switches S1, S2 and S3, and collecting waveform signals of a current sensor, a voltage sensor and a temperature sensor of the electrical equipment simulation experiment part to the industrial personal computer;
3) removing a connector of an electrical equipment simulation experiment part, constructing a fault simulation experiment part according to claim 1, rapidly closing switches S1, S2 and S3, and collecting waveform signals of a current sensor, a voltage sensor and a temperature sensor which are in 1 second of fault to an industrial personal computer;
rapidly closing switches S1, S2 and S3, and collecting waveform signals of a current sensor, a voltage sensor and a temperature sensor which are in failure for 3 seconds to an industrial personal computer;
4) dismantling the joint of the fault simulation experiment part in the step 3), collecting various parameters of the electrical equipment on-line monitoring device through the electrical equipment parameter measuring device, and uploading the parameters to the industrial personal computer;
5) integrating the data information of the step 2), the step 3) and the step 4) in an industrial personal computer, sequentially and correspondingly inputting FALSE (FALSE least squares) for calculation through FLASH software arranged in the industrial personal computer, and performing differential analysis corresponding to corresponding change values.
3. The laboratory simulation test method of the on-line electrical equipment monitoring device according to claim 2, wherein the step 2) further comprises the following processing steps:
capacitive coupling and analog-to-digital conversion: respectively and sequentially carrying out capacitive coupling processing on the waveform signals of the current sensor, the voltage sensor and the temperature sensor of the electrical equipment simulation experiment part acquired in the step 2), and then respectively and sequentially passing through an A/D converter on the processed signals to obtain digital signals with discrete time and discrete amplitude in the simulation experiment.
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| CN201610163199.9A CN105807176B (en) | 2016-03-22 | 2016-03-22 | Laboratory simulation test device and test method for electrical equipment online detection device |
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| CN201610163199.9A CN105807176B (en) | 2016-03-22 | 2016-03-22 | Laboratory simulation test device and test method for electrical equipment online detection device |
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| CN105807176B true CN105807176B (en) | 2020-03-17 |
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| CN106352896B (en) * | 2016-08-15 | 2019-04-16 | 国网山西省电力公司电力科学研究院 | The laboratory simulation test macro and test method of shaft tower inclination on-Line Monitor Device |
| CN106353476B (en) * | 2016-09-12 | 2018-06-05 | 国网天津市电力公司 | For solving the signal pickup assembly of transformer winding material temperature-coefficient of electrical resistance |
| CN106707087B (en) * | 2017-02-04 | 2024-04-05 | 山西全安新技术开发有限公司 | Underground electrical equipment grounding monitoring method and system |
| CN107144374B (en) * | 2017-04-20 | 2019-02-22 | 国网山东省电力公司东营市东营区供电公司 | A kind of power line temperature monitoring system |
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| CN101359023B (en) * | 2008-08-21 | 2011-02-09 | 华中电网有限公司 | Simulate electric field test method for on-line monitoring device for transmission line |
| CN203502580U (en) * | 2013-10-12 | 2014-03-26 | 上海思创电器设备有限公司 | Checking system for online insulation monitoring 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 |
| CN204101647U (en) * | 2014-06-25 | 2015-01-14 | 滁州继保电气科技有限公司 | Insulation of electrical installation on-line monitoring system |
| CN204649859U (en) * | 2015-05-05 | 2015-09-16 | 云南电网有限责任公司电力科学研究院 | A kind of transmission line of electricity over-voltage measurement analogue test platform |
| CN204631178U (en) * | 2015-05-11 | 2015-09-09 | 衢州职业技术学院 | The test unit that a kind of equipment on-line detects |
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Inventor after: Xie Changshun Inventor after: Fu Guihong Inventor after: Zhao Xia Inventor after: Bo Jian Inventor after: Li Benqing Inventor after: Wang Xin Inventor after: Bi Lingfei Inventor before: Xie Changshun Inventor before: Bo Jian Inventor before: Li Benqing Inventor before: Wang Xin Inventor before: Bi Lingfei |
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