CN113311295A - Online cable alternating current withstand voltage test system - Google Patents
Online cable alternating current withstand voltage test system Download PDFInfo
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- CN113311295A CN113311295A CN202110031018.8A CN202110031018A CN113311295A CN 113311295 A CN113311295 A CN 113311295A CN 202110031018 A CN202110031018 A CN 202110031018A CN 113311295 A CN113311295 A CN 113311295A
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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
- G01R31/12—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
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention aims to provide an on-line cable alternating current withstand voltage test system, which comprises a central processing unit module and a cable, wherein the cable and the central processing unit are combined with a withstand voltage detection and display part to form the test system for the alternating current withstand voltage of the cable, the input end of the cable is connected with the test input voltage module through the voltage regulating module, the acquisition output end of the cable is connected with the central processing module through the information acquisition device, the output end of the central processing module is provided with a display feedback device, a multi-point acquisition mode is adopted to acquire information of voltage and temperature information at different positions of the cable, the fine degree during test detection can be effectively improved, the information state of the real-time monitoring test can be effectively monitored, high-difficulty operation during manual test can be effectively avoided, the test efficiency is effectively increased, and the test cost is reduced.
Description
Technical Field
The invention relates to the field of cable alternating current voltage withstand test, and mainly relates to an online cable alternating current voltage withstand test system.
Background
Along with the rapid development of the society in China, the current aspect of power utilization is particularly emphasized, especially for the use of cables, the cables are mainly used on medium-high voltage power transmission at the present stage, so that the withstand voltage detection of the cables needs to be carried out in advance when the cables are used, but the withstand voltage detection of the cables is carried out basically by manually increasing and adjusting input voltage, the operation flow is complex, the technical difficulty is high, the lengths of the cables are long, the conventional test mode is to carry out integral judgment on the withstand voltage degree and effect of the cables by electrifying for a long distance time period, so that effective withstand voltage test detection of each node is difficult to carry out pertinently, the withstand voltage degree at the lowest voltage can be monitored, and the actual withstand voltage upper limit of the cables is difficult to be exerted, therefore, the upper limit of the withstand voltage of the cable is too low to a great extent, the accuracy and the real effectiveness of the withstand voltage test are influenced to a great extent, the working strength of the traditional manual test is too high, the batch test detection is difficult, and the test detection cost is increased to a great extent.
Therefore, the online cable alternating current voltage withstand test system is provided, the intelligent online voltage withstand test system is arranged on a cable, the state of the cable when the cable is electrified is tested and monitored through the temperature sensor and the voltage collector, the information state of the test is monitored in real time under the coordination of time control and the display, the high-difficulty operation during manual test can be effectively avoided, the test efficiency is effectively increased, the test cost is reduced, meanwhile, the application adopts a multi-point acquisition mode to acquire the voltage and temperature information on different positions of the cable, the fineness of the test detection can be effectively improved, the accuracy and the real effectiveness of the voltage withstand test can be effectively improved, in addition, the application can transmit the data to a remote upper computer in real time through the wireless communication module, and the remote monitoring of the battery state can be effectively realized, the intelligent degree of the monitoring system can be effectively improved, and the problem to be solved by the technical personnel in the field is solved urgently.
Disclosure of Invention
The invention aims to provide an online cable alternating current voltage withstand test system, which can effectively avoid high-difficulty operation during manual test, effectively increase test efficiency and reduce test cost by arranging an intelligent online voltage withstand test system on a cable wire, carrying out test monitoring on the state of the cable wire when the cable wire is electrified through a temperature sensor and a voltage collector, and monitoring the information state of the test in real time under the coordination of time control and a display, meanwhile, the online cable alternating current voltage withstand test system can effectively improve the fineness degree during test detection by adopting a multi-point acquisition mode to acquire voltage and temperature information on different positions of the cable wire, can effectively improve the precision degree and the real effectiveness of a voltage withstand test, and can effectively realize the remote monitoring of the battery state by transmitting data to a remote upper computer in real time through a wireless communication module, the intelligent degree of the monitoring system can be effectively improved.
In order to solve the technical problems in the background technology, the invention adopts the following technical scheme:
the utility model provides an online cable exchanges withstand voltage test system, includes central processing unit module and cable conductor, through constituting the withstand voltage test system that is used for the cable conductor to exchange withstand voltage with withstand voltage detection and demonstration part combination between cable conductor and the central processing unit, the input of cable conductor pass through the voltage regulating module and be connected with experimental input voltage module, the collection output of cable conductor pass through information acquisition device and be connected with central processing module, central processing module's output on be equipped with and show feedback device.
Preferably, the information acquisition device comprises a temperature sensor, a rectification module and a voltage collector, the input end of the rectification module is directly connected with a cable, the input end of the temperature sensor is connected with the cable, the output end of the rectifying module is connected with the input end of the voltage collector, the output ends of the temperature sensor and the voltage collector are simultaneously connected with the input end of the central processing module, and a plurality of collecting points of the temperature sensor and the voltage collector are arranged and are evenly distributed on the cable wire, the state when the cable conductor is electrified is tested and monitored through the temperature sensor and the voltage collector, the voltage and the temperature information on different positions of the cable conductor are subjected to information acquisition in a multi-point acquisition mode, the fine degree during test detection can be effectively improved, and the accurate degree and the real effectiveness of a withstand voltage test can be effectively improved.
Preferably, the display feedback device comprises a display and a pressure-resistant upper limit alarm, the output end of the central processing module is connected with the display and the pressure-resistant upper limit alarm respectively, the information state of the test is monitored in real time, high-difficulty operation during manual test can be effectively avoided, the test efficiency is effectively increased, and the test cost is reduced.
Preferably, the output of central processing module still be connected with long-range host computer through wireless communication module, wireless communication module and long-range host computer between be connected through RS485 communication mode, through the real-time with data transfer to long-range host computer of wireless communication module, can effectual realization battery state's remote monitoring, can effectual improvement monitored control system's intelligent degree.
Preferably, the control input end of the central processing module is connected with the control output end of the time control module, the feedback output end of the output of the central processing module is connected with the voltage module input by the test point through the feedback control module, and through the mutual matching of the time control module and the feedback module, the intelligent control of the start and the end of the test is effectively realized, the control precision during the withstand voltage test is effectively improved, and the precision degree of the test data is improved.
Preferably, the voltage regulating module comprises a stepless voltage regulating module and a multistage voltage regulating module, and can effectively carry out adaptive voltage regulating modes according to different test requirements, and effectively improve the efficiency in voltage-withstanding power supply.
Preferably, the data detection and acquisition frequency of the temperature sensor and the voltage acquisition unit is set to 35-60 times/second, so that the high-frequency information acquisition of the information of the temperature sensor and the voltage acquisition unit can be effectively realized, and the timeliness and density of the information acquisition can be effectively improved.
The invention has the beneficial effects that:
1) the state when the cable conductor is electrified is tested and monitored through the temperature sensor and the voltage collector, and under the cooperation of time control and a display, the information state of the real-time monitoring test can effectively avoid high-difficulty operation during manual test, effectively increase the test efficiency and reduce the test cost.
2) Simultaneously, this application adopts the collection mode of multipoint formula to carry out information acquisition to voltage and temperature information on the cable conductor different positions, can effectual improvement test detect the meticulous degree of time measuring, can effectual improvement withstand voltage test's accurate degree and true validity.
3) And, this application passes through wireless communication module real-time with data transfer to remote host computer on, can effectual realization battery state's remote monitoring, can effectual improvement monitored control system's intelligent degree.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic diagram of a modular system of an on-line cable AC voltage withstand test system according to the present invention;
Detailed Description
The present invention will be described in further detail below in order to enable those skilled in the art to better understand the technical solution of the present invention.
Referring to fig. 1, an on-line cable ac voltage withstand test system includes a central processing unit module and a cable, the cable and the central processing unit are combined with a voltage withstand detection and display part to form a test system for the ac voltage withstand of the cable, an input end of the cable is connected with a test input voltage module through a voltage regulation module, an acquisition output end of the cable is connected with a central processing module through an information acquisition device, and an output end of the central processing module is provided with a display feedback device.
Furthermore, the information acquisition device comprises a temperature sensor, a rectification module and a voltage collector, the input end of the rectification module is directly connected with a cable, the input end of the temperature sensor is connected with the cable, the output end of the rectifying module is connected with the input end of the voltage collector, the output ends of the temperature sensor and the voltage collector are simultaneously connected with the input end of the central processing module, and a plurality of collecting points of the temperature sensor and the voltage collector are arranged and are evenly distributed on the cable wire, the state when the cable conductor is electrified is tested and monitored through the temperature sensor and the voltage collector, the voltage and the temperature information on different positions of the cable conductor are subjected to information acquisition in a multi-point acquisition mode, the fine degree during test detection can be effectively improved, and the accurate degree and the real effectiveness of a withstand voltage test can be effectively improved.
Furthermore, the display feedback device comprises a display and a pressure-resistant upper limit alarm, the output end of the central processing module is connected with the display and the pressure-resistant upper limit alarm respectively, the information state of the real-time monitoring test can effectively avoid high-difficulty operation during manual test, the test efficiency is effectively increased, and the test cost is reduced.
Further, the output end of the central processing module is connected with a remote upper computer through a wireless communication module, the wireless communication module is connected with the remote upper computer through an RS485 communication mode, and data are transmitted to the remote upper computer through the wireless communication module in real time, so that the remote monitoring of the battery state can be effectively realized, and the intelligent degree of the monitoring system can be effectively improved.
Furthermore, the control input end of the central processing module is connected with the control output end of the time control module, the feedback output end of the output of the central processing module is connected with the voltage module input by the test point through the feedback control module, and through the mutual matching of the time control module and the feedback module, the intelligent control of the start and the end of the test is effectively realized, the control precision during the withstand voltage test is effectively improved, and the precision degree of the test data is improved.
Furthermore, the voltage regulating module comprises a stepless voltage regulating module and a multistage voltage regulating module, and can effectively carry out the mode and the mode of adaptively regulating and regulating voltage according to different test requirements, and effectively improve the efficiency in voltage-withstanding power supply.
Furthermore, the data detection and acquisition frequency of the temperature sensor and the voltage acquisition unit is set to be 35-60 times/second, so that the high-frequency information acquisition of the information of the temperature sensor and the voltage acquisition unit can be effectively realized, and the timeliness and the density of the information acquisition can be effectively improved.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the foregoing description is illustrative in nature and is not to be construed as limiting the scope of the invention as claimed.
Claims (9)
1. The utility model provides an online cable alternating current withstand voltage test system, includes central processing unit module and cable conductor, its characterized in that: through constituting the withstand voltage test system who is used for the cable conductor to exchange withstand voltage with withstand voltage detection and display part combination between cable conductor and central processing unit, the input of cable conductor pass through the voltage regulating module and be connected with experimental input voltage module, the collection output of cable conductor pass through information acquisition device and be connected with central processing module, central processing module's output on be equipped with and show feedback device.
2. The on-line cable alternating current voltage withstand test system of claim 1, wherein the information acquisition device comprises a temperature sensor, a rectification module and a voltage collector, the input end of the rectification module is directly connected with a cable, the input end of the temperature sensor is connected with the cable, the output end of the rectification module is connected with the input end of the voltage collector, the output ends of the temperature sensor and the voltage collector are simultaneously connected with the input end of the central processing module, the acquisition points of the temperature sensor and the voltage collector are set to be multiple, and the multiple acquisition points are uniformly distributed on the cable.
3. The on-line cable alternating current voltage withstand test system of claim 1, wherein the display feedback device comprises a display and a voltage withstand upper limit alarm, and the output end of the central processing module is respectively connected with the display and the voltage withstand upper limit alarm.
4. The on-line cable alternating current voltage withstand test system of claim 1, wherein the output end of the central processing module is further connected with a remote upper computer through a wireless communication module, and the wireless communication module is connected with the remote upper computer through an RS485 communication mode.
5. The on-line cable alternating current voltage withstand test system of claim 1, wherein the control input end of the central processing module is connected with the control output end of the time control module, and the feedback output end of the output of the central processing module is connected with the voltage module of the test point input through the feedback control module.
6. The on-line cable alternating current voltage withstand test system according to claim 1, wherein the voltage regulating module comprises a stepless voltage regulating module and a multi-stage voltage regulating module.
7. The on-line cable alternating current voltage withstand test system according to claim 2, wherein the data detection and acquisition frequency of the temperature sensor and the voltage acquisition unit is set to 35-60 times/second.
8. The direct-current power supply online monitoring system according to claim 1, wherein an output end of the micro-end processor is directly connected with the direct-current power supply set through a charge-discharge start-stop switch, and a standby power supply is further arranged on an output end of the charge-discharge start-stop switch.
9. The on-line monitoring system for DC power supply of claim 1, wherein the data acquisition frequency of the power-on state detection module is set to 35-60 times/sec.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110031018.8A CN113311295A (en) | 2021-01-11 | 2021-01-11 | Online cable alternating current withstand voltage test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110031018.8A CN113311295A (en) | 2021-01-11 | 2021-01-11 | Online cable alternating current withstand voltage test system |
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| CN113311295A true CN113311295A (en) | 2021-08-27 |
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| CN202110031018.8A Pending CN113311295A (en) | 2021-01-11 | 2021-01-11 | Online cable alternating current withstand voltage test system |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0882650A (en) * | 1994-09-13 | 1996-03-26 | Chubu Electric Power Co Inc | Controlling method of withstand voltage test of extra-high-tension underground cable for power transmission |
| JP2005315759A (en) * | 2004-04-30 | 2005-11-10 | Hioki Ee Corp | Insulation withstand voltage testing device |
| CN202255461U (en) * | 2011-09-26 | 2012-05-30 | 福建省石狮电力有限责任公司 | Low-voltage alloy cable running state on-line monitoring system |
| CN103809094A (en) * | 2014-02-24 | 2014-05-21 | 苏州科技学院 | Field withstand voltage test protection device for ultra-long cable |
| CN107167255A (en) * | 2017-06-21 | 2017-09-15 | 珠海晶通科技有限公司 | A kind of low-consumption wireless remote multi-point temperature acquisition method |
| CN108427022A (en) * | 2018-04-20 | 2018-08-21 | 苏州科技大学 | The detuning protective device of high-pressure series Resonance Voltage Withstand Test |
| CN109285408A (en) * | 2018-10-30 | 2019-01-29 | 深圳供电局有限公司 | Power cable simulation test device |
| CN109581165A (en) * | 2018-12-28 | 2019-04-05 | 黄江涛 | Novel cable ac voltage withstanding pilot system |
| CN110095205A (en) * | 2019-05-05 | 2019-08-06 | 新奥数能科技有限公司 | A kind of system monitoring cable temperature |
| CN111880064A (en) * | 2020-08-03 | 2020-11-03 | 国网山东省电力公司威海供电公司 | Cable voltage-withstanding partial discharge synchronous detection device |
-
2021
- 2021-01-11 CN CN202110031018.8A patent/CN113311295A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0882650A (en) * | 1994-09-13 | 1996-03-26 | Chubu Electric Power Co Inc | Controlling method of withstand voltage test of extra-high-tension underground cable for power transmission |
| JP2005315759A (en) * | 2004-04-30 | 2005-11-10 | Hioki Ee Corp | Insulation withstand voltage testing device |
| CN202255461U (en) * | 2011-09-26 | 2012-05-30 | 福建省石狮电力有限责任公司 | Low-voltage alloy cable running state on-line monitoring system |
| CN103809094A (en) * | 2014-02-24 | 2014-05-21 | 苏州科技学院 | Field withstand voltage test protection device for ultra-long cable |
| CN107167255A (en) * | 2017-06-21 | 2017-09-15 | 珠海晶通科技有限公司 | A kind of low-consumption wireless remote multi-point temperature acquisition method |
| CN108427022A (en) * | 2018-04-20 | 2018-08-21 | 苏州科技大学 | The detuning protective device of high-pressure series Resonance Voltage Withstand Test |
| CN109285408A (en) * | 2018-10-30 | 2019-01-29 | 深圳供电局有限公司 | Power cable simulation test device |
| CN109581165A (en) * | 2018-12-28 | 2019-04-05 | 黄江涛 | Novel cable ac voltage withstanding pilot system |
| CN110095205A (en) * | 2019-05-05 | 2019-08-06 | 新奥数能科技有限公司 | A kind of system monitoring cable temperature |
| CN111880064A (en) * | 2020-08-03 | 2020-11-03 | 国网山东省电力公司威海供电公司 | Cable voltage-withstanding partial discharge synchronous detection device |
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