CN112542075A - XLPE cable partial discharge simulation method and system - Google Patents
XLPE cable partial discharge simulation method and system Download PDFInfo
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- CN112542075A CN112542075A CN202011375101.9A CN202011375101A CN112542075A CN 112542075 A CN112542075 A CN 112542075A CN 202011375101 A CN202011375101 A CN 202011375101A CN 112542075 A CN112542075 A CN 112542075A
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- 238000004088 simulation Methods 0.000 title claims abstract description 30
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 26
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 12
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003534 oscillatory effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/187—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for measuring instruments
-
- 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
- G01R31/1263—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 solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—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 solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
Abstract
The invention relates to the technical field of power skill teaching, in particular to an XLPE cable partial discharge simulation method and a XLPE cable partial discharge simulation system, which comprise the following steps: s1: establishing a characteristic database of the partial discharge waveform in the central control equipment; arranging a plurality of signal input points and a plurality of partial discharge monitoring points on a sample cable; s2: importing partial discharge waveform data in a feature database into an arbitrary waveform generator; s3: inputting the partial discharge waveform into the sample cable through a signal input point by utilizing an arbitrary waveform generator; s4: checking the sample cable through the partial discharge detection equipment, judging to obtain a checking result and inputting the checking result into the central control equipment; s5: the central control device compares the inspection result with the data output by the arbitrary waveform generator in step S3, obtains the test result, and outputs the test result to the display device for display. According to the scheme, the signal input points are used for replacing defect points, so that the sample cable can be repeatedly used, and the resource waste is reduced.
Description
Technical Field
The invention relates to the technical field of power skill teaching, in particular to an XLPE cable partial discharge simulation method and system.
Background
The XLPE cable, i.e., the cross-linked polyethylene cable, is the most widely used cable in power transmission, and in long-term operation, the cable is susceptible to partial discharge accumulation effect due to various manufacturing processes and environmental factors, and has a cable breakdown fault, i.e., partial discharge, which causes a great risk of power failure in a power supply area, resulting in a great amount of economic loss. Therefore, research and evaluation on cable partial discharge are always the focus of attention in the power industry, various partial discharge simulation devices are produced at the same time, and a partial discharge simulation learning platform is provided for power industry personnel and students of related specialties, so that the operation and maintenance supervision level of the power transmission line by the nation is continuously improved, and the operation safety and reliability of a power system are continuously improved. At present, the mainstream partial discharge simulation method for the XLPE cable in the industry is to artificially manufacture the cable defects on a short XLPE cable shell, electrify the cable by using a high-voltage alternating current power supply to simulate the field operation working condition of the cable, and finally, perform simulation study on the partial discharge of the cable by observing the partial discharge phenomenon of the cable caused by the shell defects.
For example, chinese patent CN102928756A discloses a cable partial discharge detection and positioning simulation system based on an oscillatory wave method, which includes: the device comprises a test cable, a high-frequency coupler, an oscillating wave circuit, a control module and a display module; the test cable is provided with a defect point; the control module outputs a control signal to control the oscillatory wave circuit to generate oscillatory wave voltage; the oscillating wave circuit outputs oscillating wave voltage to a test cable connected in series with the oscillating wave circuit, and the oscillating wave voltage excites a partial discharge signal at a defect point; the high-frequency coupler is connected to the first end point of the test cable and used for receiving the partial discharge signal; the control module positions the defect point according to the received partial discharge signal; the display module displays the positioning result, the scheme can be applied to simulation learning of power industry personnel and related professional students, however, the defect points are manually arranged on the cables, the partial discharge condition of the defect points cannot be accurately controlled, and related learners cannot completely know and master all the partial discharge conditions; in addition, for the learning of related personnel, simulation experiments may need to be performed for many times, so that more cables are needed for arranging defect points, and the consumption of learning resources is excessive.
Disclosure of Invention
The invention provides an XLPE cable partial discharge simulation method and system which can accurately control partial discharge types and consume less resources to overcome the defects in the prior art.
In the technical scheme, a local discharge simulation method for an XLPE cable is provided, which comprises the following steps:
s1: establishing a characteristic database of the partial discharge waveform in the central control equipment; arranging a plurality of signal input points and a plurality of partial discharge monitoring points on a sample cable;
s2: importing partial discharge waveform data in a feature database into an arbitrary waveform generator;
s3: inputting the partial discharge waveform into the sample cable through a signal input point by utilizing an arbitrary waveform generator;
s4: checking the sample cable through the partial discharge detection equipment, judging to obtain a checking result and inputting the checking result into the central control equipment;
s5: the central control device compares the inspection result with the data output by the arbitrary waveform generator in step S3, obtains the test result, and outputs the test result to the display device for display.
According to the scheme, the signal input points are arranged on the sample cables, and the partial discharge waveform passes through the signal input points to simulate the partial discharge condition of the cables, so that the defect points arranged on the cables can be replaced, the use times of the same sample cable are increased, and the resource waste is reduced; in addition, the arbitrary waveform generator can output various waveforms, control the type of partial discharge, facilitate the learners to completely know and master all knowledge of cable partial discharge, enhance learning effect and improve learning efficiency.
Preferably, the characteristic database in step S1 includes partial discharge waveform data obtained by intelligently analyzing and converting all types of partial discharge waveform images acquired in actual partial discharge monitoring by MATLAB software.
Preferably, in step S1, the multiple signal input points and the multiple partial discharge monitoring points are equidistantly disposed and numbered, the positions of the signal input points and the positions of the partial discharge monitoring points respectively correspond to each other, the signal input points are provided with signal input ports for connecting to any waveform generator, and the partial discharge monitoring points are provided with signal output ports for connecting to a partial discharge detector.
Preferably, in the step S2, the partial discharge waveform data in the feature database is converted into a waveform file by MATLAB, and then imported into an arbitrary waveform generator.
Preferably, in the step S3, the partial discharge type and the signal input point position corresponding to the partial discharge waveform type are input, and then the partial discharge waveform is input into the sample cable.
Preferably, the partial discharge detection device in the step S4 is one or more of a current sensor or a MEMS sensor electrically connected to an oscilloscope, or an ultrasonic partial discharge detector.
Preferably, the result of the check in the above step S4 includes a partial discharge position and a partial discharge type.
Preferably, in the above step S5, the central control apparatus determines whether the partial discharge position and the partial discharge type input in the step S4 are consistent with the partial discharge waveform type and the signal input point position input to the sample cable in the step S3, and if all are consistent, the output test result is correct; if all the partial discharge waveforms are inconsistent or one of the partial discharge waveforms is consistent, a prompt of an error test result is output, and the partial discharge type and the signal input point position corresponding to the partial discharge waveform type input in the step S3 are output.
The scheme also provides a system for the XLPE cable partial discharge simulation method, which comprises a central control device, an arbitrary waveform generator, a partial discharge detection device, a display device and a sample cable, wherein the sample cable is provided with a plurality of signal input ports and a plurality of signal output ports, the central control device is electrically connected with the arbitrary waveform generator and the display device, the arbitrary waveform generator is electrically connected with the sample cable through the signal input ports, and the partial discharge detection device is electrically connected with the output ports of the sample cable and the central control device. The teaching personnel are through putting the waveform data and exporting to arbitrary waveform generator with the office in the central control equipment, arbitrary waveform generator produces the corresponding office and puts the waveform and input into the sample cable through signal input port, teaching personnel input signal input port position into the central control equipment, the study personnel insert the signal output port of sample cable through the office and put the check, the office that obtains puts the type and puts the position and feed back central control equipment, central control puts the type and puts the position with the office that the waveform data corresponds is put to the office that exports to arbitrary waveform generator and the input port position that the teaching personnel input and compares respectively, obtain the judgement result and export display device.
Preferably, both ends of the sample cable are provided with standard cable connectors for grounding, so that the field working condition of the cable can be simulated to the maximum extent.
Compared with the prior art, the beneficial effects are:
(1) the signal input points replace the defect points which are manually set, so that the waste of teaching resources is avoided;
(2) partial discharge waveforms corresponding to various partial discharge types can be directly generated through an arbitrary waveform generator, so that a learner can completely know and master all partial discharge conditions, the learning effect is enhanced, and the learning efficiency is improved;
(3) the real partial discharge condition is simulated in a waveform signal mode, and the safety of the test is greatly improved.
Drawings
Fig. 1 is a schematic flow chart of an XLPE cable partial discharge simulation method according to an embodiment of the present invention;
fig. 2 is a schematic electrical connection block diagram of a system for XLPE cable partial discharge simulation teaching method according to an embodiment of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1
Fig. 1 shows an embodiment of an XLPE cable partial discharge simulation method, which includes the following steps:
s1: establishing a characteristic database of the partial discharge waveform in the central control equipment; arranging a plurality of signal input points and a plurality of partial discharge monitoring points on a sample cable;
s2: importing partial discharge waveform data in a feature database into an arbitrary waveform generator;
s3: inputting the partial discharge waveform into the sample cable through a signal input point by utilizing an arbitrary waveform generator;
s4: checking the sample cable through the partial discharge detection equipment, judging to obtain a checking result and inputting the checking result into the central control equipment;
s5: the central control device compares the inspection result with the data output by the arbitrary waveform generator in step S3, obtains the test result, and outputs the test result to the display device for display.
In this embodiment, the feature database in step S1 includes partial discharge waveform data obtained by performing intelligent analysis and conversion on all types of partial discharge waveform images obtained in actual partial discharge monitoring by MATLAB software. Of course, this function can be achieved by obtaining various partial discharge waveform data through other ways, which is not limited herein.
In step S1 in this embodiment, the multiple signal input points and the multiple partial discharge monitoring points are equidistantly set and numbered, the positions of the signal input points and the positions of the partial discharge monitoring points respectively correspond to each other, the signal input points are provided with signal input ports for connecting any waveform generator, and the partial discharge monitoring points are provided with signal output ports for connecting a partial discharge detection instrument. Wherein the signal input port and the signal output port can adopt BNC interfaces.
In step S2 in this embodiment, partial discharge waveform data in the feature database is converted into a waveform file by MATLAB, and then imported into an arbitrary waveform generator.
In step S3 in this embodiment, the partial discharge type and the signal input point position corresponding to the partial discharge waveform type are input, and then the partial discharge waveform is input into the sample cable.
In step S4 in this embodiment, the partial discharge detection device is one or more of a current sensor, an MEMS sensor, or an ultrasonic partial discharge detector electrically connected to the oscilloscope.
In step S4 in this embodiment, the result of the check includes the partial discharge position and the partial discharge type.
In step S5 in this embodiment, the central control device determines whether the partial discharge position and the partial discharge type recorded in step S4 are consistent with the partial discharge waveform type and the signal input point position input to the sample cable in step S3, and if all the partial discharge waveform types and the signal input point positions are consistent, the output test result is correct; if all the partial discharge waveforms are inconsistent or one of the partial discharge waveforms is consistent, a prompt of an error test result is output, and the partial discharge type and the signal input point position corresponding to the partial discharge waveform type input in the step S3 are output.
Example 2
Fig. 2 shows an embodiment of a system for an XLPE cable partial discharge simulation method, which includes a central control device, an arbitrary waveform generator, a partial discharge detection device, a display device, and a sample cable, where the sample cable is provided with a plurality of signal input ports and a plurality of signal output ports, the central control device is electrically connected to both the arbitrary waveform generator and the display device, the arbitrary waveform generator is electrically connected to the sample cable through the signal input port, and the partial discharge detection device is electrically connected to both the signal output port of the sample cable and the central control device. The random waveform generator can adopt a Tack AWG5200 random waveform generator, and can ensure real and accurate reduction and simulation of the fast transient waveform of partial discharge. The teaching personnel are through putting the waveform data and exporting to arbitrary waveform generator with the office in the central control equipment, arbitrary waveform generator produces the corresponding office and puts the waveform and input into the sample cable through signal input port, teaching personnel input signal input port position into the central control equipment, the study personnel insert the signal output port of sample cable through the office and put the check, the office that obtains puts the type and puts the position and feed back central control equipment, central control puts the type and puts the position with the office that the waveform data corresponds is put to the office that exports to arbitrary waveform generator and the input port position that the teaching personnel input and compares respectively, obtain the judgement result and export display device.
The two ends of the sample cable in the embodiment are provided with standard cable connectors for grounding, so that the field working condition of the cable can be simulated to the maximum extent.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An XLPE cable partial discharge simulation method is characterized by comprising the following steps:
s1: establishing a characteristic database of the partial discharge waveform in the central control equipment; arranging a plurality of signal input points and a plurality of partial discharge monitoring points on a sample cable;
s2: importing partial discharge waveform data in a feature database into an arbitrary waveform generator;
s3: inputting the partial discharge waveform into the sample cable through a signal input point by utilizing an arbitrary waveform generator;
s4: checking the sample cable through the partial discharge detection equipment, judging to obtain a checking result and inputting the checking result into the central control equipment;
s5: the central control device compares the inspection result with the data output by the arbitrary waveform generator in step S3, obtains the test result, and outputs the test result to the display device for display.
2. The XLPE cable partial discharge simulation method according to claim 1, wherein the characteristic database in step S1 includes partial discharge waveform data obtained by performing intelligent analysis and conversion on all types of partial discharge waveform images obtained in actual partial discharge monitoring through MATLAB software.
3. The XLPE cable partial discharge simulation method according to claim 2, wherein in step S1, a plurality of signal input points and a plurality of partial discharge monitoring points are equidistantly disposed and numbered, the positions of the signal input points and the partial discharge monitoring points respectively correspond to each other, a signal input port for connecting any waveform generator is disposed on the signal input point, and a signal output port for connecting a partial discharge detection instrument is disposed on the partial discharge monitoring point.
4. The XLPE cable partial discharge simulation method according to claim 3, wherein in step S2, partial discharge waveform data in the feature database is converted into a waveform file by MATLAB, and then imported into an arbitrary waveform generator.
5. The XLPE cable partial discharge simulation method of claim 4, wherein the partial discharge type and the signal input point position corresponding to the partial discharge waveform type are input in step S3, and then the partial discharge waveform is input into the sample cable.
6. The XLPE cable partial discharge simulation method according to claim 5, wherein the partial discharge detection device in the step S4 is one or more of a current sensor, a MEMS sensor or an ultrasonic partial discharge detector electrically connected to an oscilloscope.
7. The XLPE cable partial discharge simulation method of claim 5, wherein the result of checking in step S4 includes a partial discharge location and a partial discharge type.
8. The XLPE cable partial discharge simulation method of claim 7, wherein in step S5, the central control device determines whether the partial discharge position and the partial discharge type input in step S4 are consistent with the partial discharge waveform type and the signal input point position input to the sample cable in step S3, and if all are consistent, the output test result is correct; if all the partial discharge waveforms are inconsistent or one of the partial discharge waveforms is consistent, a prompt of an error test result is output, and the partial discharge type and the signal input point position corresponding to the partial discharge waveform type input in the step S3 are output.
9. The system for the XLPE cable partial discharge simulation method is characterized by comprising a central control device, an arbitrary waveform generator, a partial discharge detection device, a display device and a sample cable, wherein the sample cable is provided with a plurality of signal input ports and a plurality of signal output ports, the central control device is electrically connected with the arbitrary waveform generator and the display device, the arbitrary waveform generator is electrically connected with the sample cable through the signal input ports, and the partial discharge detection device is electrically connected with the signal output ports of the sample cable and the central control device.
10. The system for XLPE cable partial discharge simulation method according to claim 9, wherein both ends of the sample cable are provided with standard cable connectors for grounding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011375101.9A CN112542075A (en) | 2020-11-30 | 2020-11-30 | XLPE cable partial discharge simulation method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011375101.9A CN112542075A (en) | 2020-11-30 | 2020-11-30 | XLPE cable partial discharge simulation method and system |
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| CN112542075A true CN112542075A (en) | 2021-03-23 |
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| CN202011375101.9A Pending CN112542075A (en) | 2020-11-30 | 2020-11-30 | XLPE cable partial discharge simulation method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640655A (en) * | 2021-10-13 | 2021-11-12 | 常州欣盛半导体技术股份有限公司 | Arbitrary waveform generator verification platform |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08271573A (en) * | 1995-03-28 | 1996-10-18 | Tokyo Electric Power Co Inc:The | Method for detecting partial discharge |
| CN104569769A (en) * | 2015-01-29 | 2015-04-29 | 国家电网公司 | Power cable partial discharge simulation system and testing method |
| CN204925322U (en) * | 2015-08-27 | 2015-12-30 | 厦门安泰力达电气有限公司 | A ultrasonic sensor device for cubical switchboard partial discharge detector |
| CN105243913A (en) * | 2015-11-11 | 2016-01-13 | 国网山东济阳县供电公司 | Cable intelligent operation and maintenance simulation training system |
| WO2016019666A1 (en) * | 2014-08-07 | 2016-02-11 | 国家电网公司 | Method and device for detecting partial discharge of cable |
| CN111025101A (en) * | 2019-12-10 | 2020-04-17 | 广东电网有限责任公司 | Power cable partial discharge sensing and detecting device |
| CN111999537A (en) * | 2020-09-29 | 2020-11-27 | 广东电网有限责任公司江门供电局 | Miniature built-in signal generator and cable partial discharge simulation method thereof |
-
2020
- 2020-11-30 CN CN202011375101.9A patent/CN112542075A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08271573A (en) * | 1995-03-28 | 1996-10-18 | Tokyo Electric Power Co Inc:The | Method for detecting partial discharge |
| WO2016019666A1 (en) * | 2014-08-07 | 2016-02-11 | 国家电网公司 | Method and device for detecting partial discharge of cable |
| CN104569769A (en) * | 2015-01-29 | 2015-04-29 | 国家电网公司 | Power cable partial discharge simulation system and testing method |
| CN204925322U (en) * | 2015-08-27 | 2015-12-30 | 厦门安泰力达电气有限公司 | A ultrasonic sensor device for cubical switchboard partial discharge detector |
| CN105243913A (en) * | 2015-11-11 | 2016-01-13 | 国网山东济阳县供电公司 | Cable intelligent operation and maintenance simulation training system |
| CN111025101A (en) * | 2019-12-10 | 2020-04-17 | 广东电网有限责任公司 | Power cable partial discharge sensing and detecting device |
| CN111999537A (en) * | 2020-09-29 | 2020-11-27 | 广东电网有限责任公司江门供电局 | Miniature built-in signal generator and cable partial discharge simulation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113640655A (en) * | 2021-10-13 | 2021-11-12 | 常州欣盛半导体技术股份有限公司 | Arbitrary waveform generator verification platform |
| CN113640655B (en) * | 2021-10-13 | 2021-12-31 | 常州欣盛半导体技术股份有限公司 | Arbitrary waveform generator verification platform |
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Application publication date: 20210323 |