CN112379222A - Cable accessory withstand voltage testing device capable of actively reporting fault - Google Patents
Cable accessory withstand voltage testing device capable of actively reporting fault Download PDFInfo
- Publication number
- CN112379222A CN112379222A CN202011149522.XA CN202011149522A CN112379222A CN 112379222 A CN112379222 A CN 112379222A CN 202011149522 A CN202011149522 A CN 202011149522A CN 112379222 A CN112379222 A CN 112379222A
- Authority
- CN
- China
- Prior art keywords
- test
- withstand voltage
- voltage
- detection system
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 116
- 238000001514 detection method Methods 0.000 claims abstract description 61
- 238000005070 sampling Methods 0.000 claims abstract description 32
- 230000003287 optical effect Effects 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000004590 computer program Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 229920003217 poly(methylsilsesquioxane) Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000011056 performance test Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—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
-
- 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
- G01R31/18—Subjecting similar articles in turn to test, e.g. go/no-go tests in mass production
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The invention provides an active fault-reporting cable accessory withstand voltage testing device which comprises a control system, a boosting system, a testing tool, a sampling point, a data conversion center and a detection system, wherein the control system, the boosting system, the testing tool, the sampling point, the data conversion center and the detection system are sequentially connected, and the output end of the detection system is connected with the input end of the control system. The invention has the beneficial effects that: the withstand voltage test system of the cable accessory capable of actively reporting faults not only can measure more products at one time, but also can actively report the positions of unqualified test products, greatly improves the test efficiency, is not influenced by the yield of the tested products, and has great significance for the performance test of the cable accessory.
Description
Technical Field
The invention relates to the field of power equipment detection systems, in particular to a cable accessory withstand voltage testing device capable of actively reporting faults.
Background
With the rapid development of power systems, most of the urban power supply and distribution systems at the present stage are connected by cable accessories. The cable accessories in the cable power supply and distribution system not only undertake the transmission of electric energy, but also play the roles of insulation protection and shielding protection.
In order to ensure the stable operation of the power system, the cable accessories are subjected to necessary performance tests before leaving a factory, wherein one of the most critical and indispensable test items for detecting the insulation strength of the cable accessories is a power frequency withstand voltage test. The power frequency voltage withstand test before leaving a factory is different from a type test of a test center, not only needs to be carried out quickly and efficiently, but also needs to find out fault products with unqualified performance very quickly, so that the power frequency voltage withstand test before leaving the factory needs to simulate the electric field distribution of a use scene as much as possible so as to accurately investigate the power frequency voltage tolerance of the products, and needs to be convenient to disassemble and assemble so as to improve the efficiency, and meanwhile, unqualified products can be found quickly so as to reduce the time for searching the fault products.
The manufacturer carries out tests, and can quickly find out fault products with unqualified performance when the number of the products tested at the same time is small, but the overall test efficiency is low because the number of the products tested at one time is small; meanwhile, when the number of tested products is large, although the test efficiency can be greatly improved, when unqualified fault products appear, the fault products and normal products have no obvious difference in appearance, and only a single variable replacement method can be adopted for checking, so that the test efficiency can be greatly reduced. The yield of the tested products is very high, and the efficiency is higher by adopting a method of simultaneously testing multiple tested products; when the good product rate of the tested products is low or unstable, a method of simultaneously testing a small number of tested products is adopted, so that the efficiency is higher. However, the quality of the tested products is affected by multiple factors such as production process, raw materials, aging of dies, environmental changes, artificial differences and the like, complete control cannot be performed, and judgment cannot be performed before the test, so that the test efficiency is greatly affected by the quality of the tested products.
Disclosure of Invention
The invention provides an active fault-reporting cable accessory withstand voltage testing device which comprises a control system, a boosting system, a test tool, a sampling point, a data conversion center and a detection system, wherein the control system, the boosting system, the test tool, the sampling point, the data conversion center and the detection system are sequentially connected, and the output end of the detection system is connected with the input end of the control system;
the control system is: the control system comprises a power supply breaking function, a voltage lifting function, an overcurrent protection function, an overcurrent reset function, an emergency stop switch function, a timer function and a high-voltage side voltmeter function, and is used for controlling the starting and stopping of a test and the lifting of voltage;
the boosting system comprises: the device is used for isolating commercial power and a test circuit, providing high voltage and protecting test equipment and personnel by setting a protective resistor;
the test tool is characterized in that: for connecting the product in parallel to the test circuit;
the sampling point is as follows: sampling for product test data;
the data conversion center: the optical signal processing device is used for processing the data of the plurality of sampling points, converting the data into an optical signal and transmitting the optical signal to the detection system;
the detection system: the device is used for displaying the test data of each product in real time when the work frequency withstand voltage test is carried out.
As a further improvement of the invention, the boosting system comprises an isolation transformer, a test transformer and a protection resistor, wherein the isolation transformer is used for isolating commercial power and test voltage; the test transformer is used for increasing the electricity transmitted by the isolation transformer to a high voltage required by a power frequency withstand voltage test; the protection resistor is used for protecting the transformer and an operator.
As a further improvement of the present invention, the transformer ratio of the isolation transformer is 1: 1; the testing transformer selects reasonable capacity according to the testing voltage and the number of the tested products, and the tested products adopt cable accessories with the voltage grade of 35kV or below, and then selects the capacity of 10 KvA; the protection resistor is a solid resistor rod or a water resistor rod, and the resistance value of the protection resistor is 5K or 10K; the water resistance rod is of a hollow cylindrical shell structure, and the shell of the water resistance rod is made of glass or epoxy resin.
As a further improvement of the invention, the arrangement mode of the test tool comprises single arrangement, multiple arrangement and circular arrangement, the test tool adopts the structure of copper bar lapping and parallel power supply, and the grounding adopts multi-test-product one-point grounding.
As a further improvement of the invention, the cable accessory withstand voltage testing device further comprises an insulating tape and a contraction insulating tube, wherein the insulating tape or the contraction insulating tube is respectively wound outside the copper bar; the withstand voltage testing device for the cable accessories further comprises a thermal shrinkage umbrella group and a cold shrinkage terminal, wherein the thermal shrinkage umbrella skirt or the cold shrinkage terminal is additionally arranged on the copper bar respectively to improve creepage distance.
As a further improvement of the invention, the sampling point can select the sampling modes of trend monitoring, numerical value detection, critical value detection and overcurrent protection according to the requirements; the sampling point comprises a detection mode that a current transformer is sleeved on a grounding wire to detect grounding current, and the minimum detection range of the current transformer is 1-100 mA.
As a further improvement of the invention, the data conversion center module comprises a signal line, and the data conversion center module is connected with the detection system through the signal line.
As a further improvement of the present invention, the data conversion center module includes a PLC chip module and a photoelectric conversion module, the PLC chip module is configured to process and convert data of the plurality of sampling points into an electrical signal, the photoelectric conversion module is configured to convert the electrical signal into an optical signal, and the photoelectric conversion module transmits the optical signal to the detection system through the signal line.
As a further improvement of the present invention, the signal line is an optical fiber line; the control mode of the control system comprises a button control mode or a computer software control mode; the detection system and the control system are integrated into one device, and the display mode of the detection system comprises pointer display, digital display or trend lines.
As a further improvement of the invention, the control system and the detection system adopt a computer automatic control mode, the functions of the control system and the detection system are synthesized and compiled into a computer program, the computer automatically controls the voltage increase and the voltage decrease, and the fault is automatically reported through the analysis of the detection result; the detection system also comprises a screen display for displaying data of different sampling points, and meanwhile, when breakdown or creepage occurs in the power frequency withstand voltage test, the detection system actively gives an alarm to prompt a serial number corresponding to a fault product, and when the test is interrupted, the fault product is quickly positioned.
The invention has the beneficial effects that: the withstand voltage test system of the cable accessory capable of actively reporting faults not only can measure more products at one time, but also can actively report the positions of unqualified test products, greatly improves the test efficiency, is not influenced by the yield of the tested products, and has great significance for the performance test of the cable accessory.
Drawings
FIG. 1 is a schematic diagram of the structure of the voltage withstand test device for cable accessories according to the present invention;
fig. 2 is a schematic structural diagram of a device in which the control system and the detection system of the present invention are integrated.
Detailed Description
As shown in fig. 1, the invention discloses a cable accessory withstand voltage testing device capable of actively reporting faults, which comprises a control system 1, a boosting system 2, a test tool 3, a sampling point 4, a data conversion center 5 and a detection system 6, wherein the control system 1, the boosting system 2, the test tool 3, the sampling point 4, the data conversion center 5 and the detection system 6 are sequentially connected, and the output end of the detection system 6 is connected with the input end of the control system 1;
the control system 1: the control system 1 comprises functions essential for a power frequency withstand voltage test, a breaking function of a power supply, a voltage lifting function, an overcurrent protection function, an overcurrent reset function, an emergency stop switch function, a timer function and a high-voltage side voltmeter function, and the control system 1 is used for controlling starting and stopping of the test and lifting of the voltage;
the boosting system 2: the device is used for isolating commercial power and a test circuit, providing high voltage and protecting test equipment and personnel by setting a protective resistor;
the test tool 3: for connecting as many products as possible in parallel to the test circuit;
the sampling point 4: sampling for product test data;
the data conversion center 5: the system is used for processing the data of the plurality of sampling points 4, converting the data into optical signals and transmitting the optical signals to the detection system 6;
the detection system 6: the device is used for displaying the test data of each product in real time when the work frequency withstand voltage test is carried out.
The boosting system 2 comprises a transformer equipment isolation transformer, a test transformer and a protective resistor, wherein the transformation ratio of the isolation transformer is 1: 1, the isolation transformer is used for isolating commercial power and test voltage; the transformation ratio of the test transformer is 1500 times, the test transformer is used for increasing the electricity transmitted by the isolation transformer to the high voltage required by the power frequency withstand voltage test, and the reasonable capacity can be selected according to the test voltage and the number of the tested products, such as cable accessories with the voltage class of 35kV or below, and the 10kVA capacity can be optimized; the protection resistor is used for protecting a transformer and an operator, the size of the resistor is preferably 5k or 10k, a solid resistor rod or a water resistor rod can be adopted in the structure, the water resistor rod is of a hollow cylindrical shell structure, and the shell can be made of glass or epoxy resin.
The test fixture 3 can be arranged in different arrangement modes according to the structure and the characteristics of a product, the arrangement modes of the test fixture 3 comprise single arrangement, multiple arrangement and circular arrangement, the structure of the test fixture 3 adopts copper bar lap joint and parallel power supply, and the grounding adopts one-point grounding of multiple test products.
The voltage withstand test device for the cable accessory further comprises an insulating tape and a shrinkage insulating tube, and the copper bar has higher voltage when a power frequency voltage withstand test is carried out, so that the insulating tape or the shrinkage insulating tube can be respectively wound outside the copper bar to improve the insulating strength; this cable accessories withstand voltage testing arrangement still includes pyrocondensation parachute kit, shrinkage terminal, and when creepage distance was not enough, the copper bar can be add respectively pyrocondensation full skirt or shrinkage terminal improves creepage distance.
The sampling point 4 and the sampling mode can select the modes of trend monitoring, numerical value detection, critical value detection, overcurrent protection and the like according to needs, and can achieve the function of quickly positioning the fault test article; the sampling point 4 can be detected by various means, such as a current transformer sleeved on a grounding wire to detect grounding current. The sampled current transformer has good insulating strength and cannot be lower than the power frequency withstand voltage of a test product; the detection precision is high and reaches mA level or higher; the detection range is wide, and the minimum detection range of the current transformer is 1-100 mA.
The data conversion center module 5 comprises a signal line 7, and the data conversion center module 5 is connected with the detection system 6 through the signal line 7.
The data conversion center module 5 comprises a PLC chip module and a photoelectric conversion module, the PLC chip module is used for processing and converting a plurality of data of the sampling points 4 into 1 electrical signal, the photoelectric conversion module is used for converting the 1 electrical signal into an optical signal, and the photoelectric conversion module transmits the optical signal to the detection system 6 through the signal wire 7.
The signal line is an optical fiber line and is used for isolating electric energy and transmitting data.
The control mode of the control system 1 comprises a button type control mode or a computer software control mode.
The detection system 6 can be 1 device alone or integrated with the control system 1 into one device, and the display mode of the detection system 6 includes a pointer display mode, a digital display mode or a trend line display mode.
The control system 1 and the detection system 6 adopt a computer automatic control mode, namely, functions of the control system 1 and the detection system 6 are synthesized and compiled into a computer program, the computer automatically controls the voltage increase and the voltage decrease, and the fault is automatically reported through the analysis of the detection result.
The detection system 6 also comprises a screen display for displaying data of different sampling points, and meanwhile, when breakdown or creepage occurs in the power frequency withstand voltage test, the alarm is given actively to prompt the number corresponding to the fault product, so that the fault product can be positioned quickly when the test is interrupted.
The cable accessory withstand voltage testing device can actively report faults, when one or more products break down or creep, the positions of the fault products can be visually seen through the detection system and directly picked out without finding out the broken products one by adopting an alternative method, so that not only can multiple products be tested at the same time and the detection efficiency be greatly improved, but also the positions of the fault products can be directly positioned when the tested products break down or creep, and the detection efficiency is not influenced by the high and low yield of the tested products.
The invention has the beneficial effects that: the withstand voltage test system of the cable accessory capable of actively reporting faults not only can measure more products at one time, but also can actively report the positions of unqualified test products, greatly improves the test efficiency, is not influenced by the yield of the tested products, and has great significance for the performance test of the cable accessory.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides a cable accessories withstand voltage testing arrangement of initiative fault report which characterized in that: the device comprises a control system (1), a boosting system (2), a test tool (3), a sampling point (4), a data conversion center (5) and a detection system (6), wherein the control system (1), the boosting system (2), the test tool (3), the sampling point (4), the data conversion center (5) and the detection system (6) are sequentially connected, and the output end of the detection system (6) is connected with the input end of the control system (1);
the control system (1): the control system (1) comprises a power supply breaking function, a voltage lifting function, an overcurrent protection function, an overcurrent reset function, an emergency stop switch function, a timer function and a high-voltage side voltmeter function, and is used for controlling the start and stop of a test and the lifting of voltage;
the booster system (2): the device is used for isolating commercial power and a test circuit, providing high voltage and protecting test equipment and personnel by setting a protective resistor;
the test tool (3): for connecting the product in parallel to the test circuit;
the sampling point (4): sampling for product test data;
the data conversion center (5): the system is used for processing data of a plurality of sampling points (4), converting the data into optical signals and transmitting the optical signals to the detection system (6);
the detection system (6): the device is used for displaying the test data of each product in real time when the work frequency withstand voltage test is carried out.
2. The apparatus for testing withstand voltage of electrical cable accessories according to claim 1, wherein: the boosting system (2) comprises an isolation transformer, a test transformer and a protection resistor, wherein the isolation transformer is used for isolating commercial power and test voltage; the test transformer is used for increasing the electricity transmitted by the isolation transformer to a high voltage required by a power frequency withstand voltage test; the protection resistor is used for protecting the transformer and an operator.
3. The apparatus for testing withstand voltage of electrical cable accessories according to claim 2, wherein: the transformer ratio of the isolation transformer is 1: 1; the transformer ratio of the test transformer is 1500 times, the test transformer selects reasonable capacity according to the test voltage and the number of the tested products, and the tested products adopt cable accessories with the voltage level of 35kV or below, and then the capacity of 10kVA is selected; the protection resistor is a solid resistor rod or a water resistor rod, and the resistance value of the protection resistor is 5K or 10K; the water resistance rod is of a hollow cylindrical shell structure, and the shell of the water resistance rod is made of glass or epoxy resin.
4. The apparatus for testing withstand voltage of electrical cable accessories according to claim 1, wherein: the arrangement mode of the test tools (3) comprises single arrangement, multiple arrangement and circular arrangement, the test tools (3) are in copper bar lap joint and parallel connection for power supply, and the grounding is realized by adopting multiple test articles and one-point grounding.
5. The apparatus for testing withstand voltage of electric cable accessory according to claim 4, wherein: the cable accessory withstand voltage testing device also comprises an insulating tape and a thermal shrinkage or cold shrinkage insulating tube, wherein the insulating tape or the thermal shrinkage insulating tube is respectively wound outside the copper bar; the withstand voltage testing device for the cable accessories further comprises a thermal shrinkage umbrella group and a cold shrinkage terminal, wherein the thermal shrinkage umbrella skirt or the cold shrinkage terminal is additionally arranged on the copper bar respectively to improve creepage distance.
6. The apparatus for testing withstand voltage of electrical cable accessories according to claim 1, wherein: the sampling point (4) can select the sampling modes of trend monitoring, numerical value detection, critical value detection and overcurrent protection as required; the sampling point (4) comprises a detection mode of detecting grounding current by sleeving a current transformer on a grounding wire, and the minimum detection range of the current transformer is 1-100 mA.
7. The apparatus for testing withstand voltage of electrical cable accessories according to claim 1, wherein: the data conversion center module (5) comprises a signal line (7), and the data conversion center module (5) is connected with the detection system (6) through the signal line (7).
8. The apparatus for testing withstand voltage of electrical cable accessories according to claim 7, wherein: the data conversion center module (5) comprises a PLC chip module and a photoelectric conversion module, the PLC chip module is used for processing and converting a plurality of data of the sampling points (4) into electric signals, the photoelectric conversion module is used for converting the electric signals into optical signals, and the photoelectric conversion module transmits the optical signals to the detection system (6) through the signal wire (7).
9. The apparatus for testing withstand voltage of electrical cable accessories according to claim 1, wherein: the signal wire is an optical fiber wire; the control mode of the control system (1) comprises a button control mode or a computer software control mode; the detection system (6) and the control system (1) are integrated into a device, and the display mode of the detection system (6) comprises a pointer display mode, a digital display mode or a trend line.
10. The apparatus for testing withstand voltage of electrical cable accessories according to claim 1, wherein: the control system (1) and the detection system (6) adopt a computer automatic control mode to synthesize and compile functions of the control system (1) and the detection system (6) into a computer program, the computer automatically controls the voltage boosting and the voltage reducing, and the detection result is analyzed to automatically report faults; the detection system (6) further comprises a screen display for displaying data of different sampling points, and meanwhile, when breakdown or creepage occurs in a power frequency withstand voltage test, an active alarm is given out to prompt a serial number corresponding to a fault product, and when the test is interrupted, the fault product is quickly positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011149522.XA CN112379222B (en) | 2020-10-23 | 2020-10-23 | Cable accessory withstand voltage testing device capable of actively reporting fault |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011149522.XA CN112379222B (en) | 2020-10-23 | 2020-10-23 | Cable accessory withstand voltage testing device capable of actively reporting fault |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112379222A true CN112379222A (en) | 2021-02-19 |
| CN112379222B CN112379222B (en) | 2023-11-28 |
Family
ID=74580813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011149522.XA Active CN112379222B (en) | 2020-10-23 | 2020-10-23 | Cable accessory withstand voltage testing device capable of actively reporting fault |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112379222B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10234115A (en) * | 1996-09-24 | 1998-09-02 | Korea Electric Power Corp | Underground power cabling completion inspection and method thereof |
| CN102735977A (en) * | 2012-07-12 | 2012-10-17 | 四川大学 | Electrical-thermal aging device of cable accessories under high voltage and high current and test method thereof |
| CN103197214A (en) * | 2013-04-08 | 2013-07-10 | 陶柏洪 | Prefabricated power cable accessory alternating current power frequency withstand voltage detection method and prefabricated power cable accessory alternating current power frequency withstand voltage detection device |
| KR20150037022A (en) * | 2013-09-30 | 2015-04-08 | 한국전력공사 | Apparatus for stopping test current during lightning impulse withstand voltage test of high voltage cable |
| CN105548833A (en) * | 2015-12-09 | 2016-05-04 | 天津二十冶建设有限公司 | High-voltage cable frequency conversion series resonance voltage withstand debugging method |
| CN205656273U (en) * | 2016-03-25 | 2016-10-19 | 上海蓝波高电压技术设备有限公司 | A three -phase power -frequency withstand voltage test device for among cable accessories salt atmosphere test |
| CN106990341A (en) * | 2017-05-26 | 2017-07-28 | 西安交通大学 | Distribution cable insulation diagnosis ultralow frequency cosine square wave high pressure generator and method |
| CN206818835U (en) * | 2017-06-08 | 2017-12-29 | 国网甘肃省电力公司电力科学研究院 | A kind of pressure-resistant breakdown device for excising |
| CN209182430U (en) * | 2018-09-12 | 2019-07-30 | 国网甘肃省电力公司电力科学研究院 | A kind of industrial frequency AC pressure test indicating fault and automatic cut-off device |
| CN209496104U (en) * | 2018-12-04 | 2019-10-15 | 武汉康电电气有限公司 | One kind being used for partial discharge test system when high-tension cable pressure test |
-
2020
- 2020-10-23 CN CN202011149522.XA patent/CN112379222B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10234115A (en) * | 1996-09-24 | 1998-09-02 | Korea Electric Power Corp | Underground power cabling completion inspection and method thereof |
| CN102735977A (en) * | 2012-07-12 | 2012-10-17 | 四川大学 | Electrical-thermal aging device of cable accessories under high voltage and high current and test method thereof |
| CN103197214A (en) * | 2013-04-08 | 2013-07-10 | 陶柏洪 | Prefabricated power cable accessory alternating current power frequency withstand voltage detection method and prefabricated power cable accessory alternating current power frequency withstand voltage detection device |
| KR20150037022A (en) * | 2013-09-30 | 2015-04-08 | 한국전력공사 | Apparatus for stopping test current during lightning impulse withstand voltage test of high voltage cable |
| CN105548833A (en) * | 2015-12-09 | 2016-05-04 | 天津二十冶建设有限公司 | High-voltage cable frequency conversion series resonance voltage withstand debugging method |
| CN205656273U (en) * | 2016-03-25 | 2016-10-19 | 上海蓝波高电压技术设备有限公司 | A three -phase power -frequency withstand voltage test device for among cable accessories salt atmosphere test |
| CN106990341A (en) * | 2017-05-26 | 2017-07-28 | 西安交通大学 | Distribution cable insulation diagnosis ultralow frequency cosine square wave high pressure generator and method |
| CN206818835U (en) * | 2017-06-08 | 2017-12-29 | 国网甘肃省电力公司电力科学研究院 | A kind of pressure-resistant breakdown device for excising |
| CN209182430U (en) * | 2018-09-12 | 2019-07-30 | 国网甘肃省电力公司电力科学研究院 | A kind of industrial frequency AC pressure test indicating fault and automatic cut-off device |
| CN209496104U (en) * | 2018-12-04 | 2019-10-15 | 武汉康电电气有限公司 | One kind being used for partial discharge test system when high-tension cable pressure test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112379222B (en) | 2023-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106646209B (en) | Intelligent testing equipment for high-temperature and low-temperature tripping of charge control circuit breaker | |
| CN101488276B (en) | Wireless test system for cable | |
| CN104215835A (en) | Automatic measuring system for main transformer | |
| CN211043532U (en) | Transformer test system | |
| CN109212457B (en) | Automatic crimping device and verification method for multi-position high-voltage transformer | |
| CN111157841A (en) | Fault quick positioning device for secondary circuit of electric operation type isolating switch | |
| CN203894379U (en) | Comprehensive test stand for detecting performances of mine low-voltage feeder switch | |
| CN105067998A (en) | Voltage and current fluctuation detector | |
| CN207833325U (en) | The test device and mast switch controller of mast switch controller | |
| CN112505610A (en) | Voltage transformer insulation and metering performance integrated test device and method for metering of 35kV and below | |
| CN205404719U (en) | Mutual -inductor common return multipoint earthing detector | |
| CN112379222B (en) | Cable accessory withstand voltage testing device capable of actively reporting fault | |
| CN201203938Y (en) | Cable wireless test system | |
| CN103245882A (en) | Integrated power failure indication and condition monitoring device | |
| CN213544717U (en) | Automatic electrical performance testing device for rod position detector | |
| CN114814454A (en) | Cable type fault location and load monitoring system | |
| CN211292995U (en) | Power transformer high-voltage lead switching device | |
| CN204789879U (en) | Electrified partial discharge test system of switch cabinet and voltage signal extraction device thereof | |
| CN112698579A (en) | Portable pole-mounted switch controller field test device and method | |
| CN211123117U (en) | Check meter for insulation monitoring device of direct current system | |
| CN111948581A (en) | Aviation plug manual or automatic online detection interface device | |
| CN113671324A (en) | Automatic testing device for testing performance of medium-low voltage distribution board and testing method thereof | |
| CN112230098A (en) | Complete device and method for quickly searching 0.4kV overhead line short-circuit fault point | |
| CN111624511A (en) | Grounding current online monitoring device and online monitoring control method for transformer iron core | |
| CN113176438A (en) | Transformer substation secondary circuit detector and detection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |