CN109581165A - Novel cable ac voltage withstanding pilot system - Google Patents
Novel cable ac voltage withstanding pilot system Download PDFInfo
- Publication number
- CN109581165A CN109581165A CN201811617431.7A CN201811617431A CN109581165A CN 109581165 A CN109581165 A CN 109581165A CN 201811617431 A CN201811617431 A CN 201811617431A CN 109581165 A CN109581165 A CN 109581165A
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- Prior art keywords
- reactor
- cable
- voltage withstanding
- circuit
- wireless communication
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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
-
- 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
- G01R31/14—Circuits therefor, e.g. for generating test voltages, sensing circuits
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The present invention provides a kind of novel cable ac voltage withstanding pilot systems, including controlling terminal, main controller, exciting transformer, resonance reactor, compensation reactor and capacitive divider；The main controller includes rectification circuit, inverter circuit, regulating circuit, D/A conversion circuit, single-chip microcontroller, touch display screen, D/A conversion circuit, data acquisition module, wireless communication module, and the touch display screen, data acquisition module, D/A conversion circuit, wireless communication module are connect with single-chip microcontroller；The resonance reactor is formed in parallel by 4 reactors；The compensation reactor is formed in parallel by 2 reactors；The junction of the series resonant tank and tested cable is provided with grading ring.Cable ac voltage withstanding system of the present invention, has many advantages, such as that through-current capability is strong, and security performance is high, and the test of remote control cable ac voltage withstanding can be realized by controlling terminal, is able to satisfy the pressure test of overlength cable.
Description
Technical field
The invention belongs to power cable ac voltage withstanding experimental technique fields, and in particular to a kind of novel cable ac voltage withstanding examination
Check system.
Background technique
Ac voltage withstanding test is that cable insulation intensity is most effective and most straightforward approach for identification, is to guarantee cable running safety
A kind of important means.Current cable voltage test generally uses variable-frequency series-resonance alternating-current voltage resistance test device, mainly by becoming
Frequency control power supply, exciting transformer, resonance reactor, capacitive divider connect to form resonant tank.Currently, reactance on the market
The through-current capability of device only has 30A or so, is far from satisfying the pressure test demand of super-length cable, meanwhile, pressure test is all
It carries out under high pressure, execute-in-place has very big security risk.
Summary of the invention
The purpose of the present invention is to provide a kind of through-current capabilities, and novel cable ac voltage withstanding strong, that security performance is high tests system
System.
To achieve the goals above, the technical solution of the present invention is as follows:
A kind of novel cable ac voltage withstanding pilot system, including controlling terminal, main controller, exciting transformer, resonance reactance
Device, compensation reactor and capacitive divider；The main controller includes rectification circuit, inverter circuit, regulating circuit, D/A conversion electricity
Road, single-chip microcontroller, touch display screen, data acquisition module, wireless communication module, the touch display screen, data acquisition module, D/
A conversion circuit, wireless communication module are connect with single-chip microcontroller；The resonance reactor is formed in parallel by 4 reactors；The benefit
Reactor is repaid to be formed in parallel by 2 reactors；Agreement and single-chip microcontroller carry out wireless communication the controlling terminal by wireless communication
Connection；The rectification circuit, inverter circuit, exciting transformer, resonance reactor, capacitive divider connect to form series resonance time
Road；The compensation reactor is in parallel with capacitive divider, and the output end of the input terminal of compensation reactor and resonance reactor connects
It connects；The data acquisition module is used to acquire the data of capacitive divider low-voltage capacitance；The input terminal and list of the D/A converter
The connection of piece machine, the output end and adjusting circuit connection, the adjusting circuit of the D/A converter are connected with the rectifying circuit；It is described
The junction of series resonant tank and tested cable is provided with grading ring.
Further, the data acquisition module is precision A/D acquisition module.
Further, the single-chip microcontroller is AVR series monolithic.
Further, the wireless communication module is bluetooth module or WIFI module.
Further, the reactor is the reactor of model 36kVA/27kV.
Further, the exciting transformer is the exciting transformer of model 6kVA/1.2kV.
Further, between 4 reactors of the series resonance reactor, 2 reactors of shunt compensation reactor
Wiring form openning shape, can effectively prevent circulation, enhance series parallel resonance reactor through-current capability.
Working principle: the alternating voltage of 220V or 380V becomes direct current signal after over commutation, and direct current signal passes through inversion
Circuit inversion is the AC signal of assigned frequency, and AC signal finally exports high pressure by the amplification of excitation voltage device, resonance step-up,
Resonance step-up is the high-pressure series resonance cucurbit that is made of exciting transformer, resonance reactor and tested cable to realize.It rises
It is as follows to press through process control: first by changing the frequency of output signal, the resonance frequency of series loop is found, in resonant frequency point
On, single-chip microcontroller controls the analog signal output of D/A, and the signal of control regulating circuit output removes the output voltage of control AC rectification
Amplitude, i.e. voltage amplitude before inversion, to determine the amplitude of export resonance high pressure.
The invention has the benefit that cable ac voltage withstanding pilot system through-current capability of the present invention is strong, Neng Gouman
The pressure test demand of sufficient overlength cable；It is simple to operate by remotely controlling carry out pressure test, test product can be prevented resistance to
Injury of the flyback voltage generated when pressure breakdown to testing crew.
Detailed description of the invention
Fig. 1 is system structure of the invention schematic diagram；
Fig. 2 is main controller control circuit functional block diagram of the present invention；
Detailed description of main elements: 1, main controller, 2, excitation amplifier, 3, resonance reactor, 4, compensation reactor, 5, capacitor point
Depressor, 6, tested cable, 7, grading ring, 8, data acquisition module.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
The embodiment of the present invention, those of ordinary skill in the art's every other embodiment obtained, belongs to protection model of the invention
It encloses.
As shown in Figure 1 and Figure 2, a kind of novel cable ac voltage withstanding pilot system, including controlling terminal, main controller 1, excitation
Transformer 2, resonance reactor 3, compensation reactor 4 and capacitive divider 5；The main controller 1 includes rectification circuit, inversion electricity
Road, regulating circuit, D/A conversion circuit, single-chip microcontroller, touch display screen, D/A conversion circuit, data acquisition module, wireless telecommunications mould
Block, the touch display screen, data acquisition module, D/A conversion circuit, wireless communication module are connect with single-chip microcontroller；It is described humorous
Vibration reactor 2 is formed in parallel by 4 reactors；The compensation reactor 3 is formed in parallel by 2 reactors；The controlling terminal
Agreement and single-chip microcontroller carry out wireless communication by wireless communication, control main controller with this and carry out pressure test；The rectification circuit,
Inverter circuit, exciting transformer 2, resonance reactor 3, the series connection of capacitive divider 5 form series resonant tank；The compensating reactance
Device 4 is in parallel with capacitive divider 5, and the input terminal of compensation reactor 4 is connect with the output end of resonance reactor 3；The data
Acquisition module 8 is used to acquire the data of capacitive divider low-voltage capacitance；The input terminal of the D/A converter is connect with single-chip microcontroller,
The output end and adjusting circuit connection, the adjusting circuit of the D/A converter are connected with the rectifying circuit；The series resonance is returned
Road and the junction of tested cable are provided with grading ring.
Further, the data acquisition module is precision A/D acquisition module.
Further, the single-chip microcontroller is AVR series monolithic.
Further, the wireless communication module is bluetooth module or WIFI module.
Further, the reactor is the reactor of model 36kVA/27kV.
Further, the exciting transformer is the exciting transformer of model 6kVA/1.2kV.
Further, between 4 reactors of the series resonance reactor, 2 reactors of shunt compensation reactor
Wiring form openning shape, can effectively prevent circulation, enhance series parallel resonance reactor through-current capability.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, all any modification, equivalent substitution, improvement and etc. be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of novel cable ac voltage withstanding pilot system, which is characterized in that including controlling terminal, main controller, exciting transformer,
Resonance reactor, compensation reactor and capacitive divider；The main controller includes rectification circuit, inverter circuit, regulating circuit, D/
A conversion circuit, single-chip microcontroller, touch display screen, data acquisition module, wireless communication module, the touch display screen, data acquisition
Module, D/A conversion circuit, wireless communication module are connect with single-chip microcontroller；The resonance reactor it is in parallel by 4 reactors and
At；The compensation reactor is formed in parallel by 2 reactors；Agreement and single-chip microcontroller carry out the controlling terminal by wireless communication
Wireless communication connection；The rectification circuit, inverter circuit, exciting transformer, resonance reactor, capacitive divider connect to form string
Join resonant tank；The compensation reactor is in parallel with capacitive divider, and the input terminal of compensation reactor and resonance reactor
Output end connection；The data acquisition module is used to acquire the data of capacitive divider low-voltage capacitance；The D/A converter it is defeated
Enter end to connect with single-chip microcontroller, the output end and adjusting circuit connection of the D/A converter, the adjusting circuit and rectification circuit connect
It connects；The junction of the series resonant tank and tested cable is provided with grading ring.
2. cable ac voltage withstanding pilot system as described in claim 1, which is characterized in that the data acquisition module is precision
A/D acquisition module.
3. cable ac voltage withstanding pilot system as described in claim 1, which is characterized in that the single-chip microcontroller is that AVR series is single
Piece machine.
4. cable ac voltage withstanding pilot system as described in claim 1, which is characterized in that the wireless communication module is bluetooth
Module or WIFI module.
5. cable ac voltage withstanding pilot system as described in claim 1, which is characterized in that the reactor is model 36kVA/
The reactor of 27kV.
6. cable ac voltage withstanding pilot system as described in claim 1, which is characterized in that the exciting transformer is model
The exciting transformer of 6kVA/1.2kV.
7. cable ac voltage withstanding pilot system as described in claim 1, which is characterized in that the 4 of the series resonance reactor
A reactor, shunt compensation reactor 2 reactors between wiring form openning shape, circulation can be effectively prevent, enhancing string
Parallel resonance reactor through-current capability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617431.7A CN109581165A (en) | 2018-12-28 | 2018-12-28 | Novel cable ac voltage withstanding pilot system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811617431.7A CN109581165A (en) | 2018-12-28 | 2018-12-28 | Novel cable ac voltage withstanding pilot system |
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| Publication Number | Publication Date |
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| CN109581165A true CN109581165A (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811617431.7A Pending CN109581165A (en) | 2018-12-28 | 2018-12-28 | Novel cable ac voltage withstanding pilot system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501596A (en) * | 2019-08-30 | 2019-11-26 | 国网山西省电力公司电力科学研究院 | A kind of wireless control system and method for instruction carriage |
| CN111610419A (en) * | 2020-06-02 | 2020-09-01 | 西安热工研究院有限公司 | Method for carrying out long-distance submarine cable voltage withstand test by utilizing reactive compensation reactor |
| CN112816840A (en) * | 2021-01-29 | 2021-05-18 | 国网陕西省电力公司电力科学研究院 | Cable line alternating current voltage withstand test method and system based on three-phase shunt reactor |
| CN112834888A (en) * | 2020-12-28 | 2021-05-25 | 深圳供电局有限公司 | Test voltage generating device and alternating current withstand voltage test system |
| CN113311295A (en) * | 2021-01-11 | 2021-08-27 | 合肥开关厂有限公司 | Online cable alternating current withstand voltage test system |
| CN113447778A (en) * | 2021-06-29 | 2021-09-28 | 国网陕西省电力公司电力科学研究院 | Method for performing high-resistance induction withstand voltage and partial discharge test by using circuit |
| CN113466643A (en) * | 2021-06-29 | 2021-10-01 | 国网陕西省电力公司电力科学研究院 | Cable line voltage withstand test method with single-phase parallel reactor |
| CN114397537A (en) * | 2021-12-02 | 2022-04-26 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Method for optimizing portability of withstand voltage test of offshore 66kV submarine cable |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110501596A (en) * | 2019-08-30 | 2019-11-26 | 国网山西省电力公司电力科学研究院 | A kind of wireless control system and method for instruction carriage |
| CN111610419A (en) * | 2020-06-02 | 2020-09-01 | 西安热工研究院有限公司 | Method for carrying out long-distance submarine cable voltage withstand test by utilizing reactive compensation reactor |
| CN111610419B (en) * | 2020-06-02 | 2022-08-02 | 西安热工研究院有限公司 | Method for carrying out long-distance submarine cable voltage withstand test by utilizing reactive compensation reactor |
| CN112834888A (en) * | 2020-12-28 | 2021-05-25 | 深圳供电局有限公司 | Test voltage generating device and alternating current withstand voltage test system |
| CN113311295A (en) * | 2021-01-11 | 2021-08-27 | 合肥开关厂有限公司 | Online cable alternating current withstand voltage test system |
| CN112816840A (en) * | 2021-01-29 | 2021-05-18 | 国网陕西省电力公司电力科学研究院 | Cable line alternating current voltage withstand test method and system based on three-phase shunt reactor |
| CN113447778A (en) * | 2021-06-29 | 2021-09-28 | 国网陕西省电力公司电力科学研究院 | Method for performing high-resistance induction withstand voltage and partial discharge test by using circuit |
| CN113466643A (en) * | 2021-06-29 | 2021-10-01 | 国网陕西省电力公司电力科学研究院 | Cable line voltage withstand test method with single-phase parallel reactor |
| CN114397537A (en) * | 2021-12-02 | 2022-04-26 | 中国大唐集团科学技术研究院有限公司火力发电技术研究院 | Method for optimizing portability of withstand voltage test of offshore 66kV submarine cable |
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Application publication date: 20190405 |