CN110531209A - Lightning arrester resistor sheet side glaze leakage current test system - Google Patents
Lightning arrester resistor sheet side glaze leakage current test system Download PDFInfo
- Publication number
- CN110531209A CN110531209A CN201910902799.6A CN201910902799A CN110531209A CN 110531209 A CN110531209 A CN 110531209A CN 201910902799 A CN201910902799 A CN 201910902799A CN 110531209 A CN110531209 A CN 110531209A
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- Prior art keywords
- glaze
- leakage current
- resistance
- module
- resistor
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- 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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000004891 communication Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims 2
- 230000009466 transformation Effects 0.000 claims 2
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical group [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 229960001296 zinc oxide Drugs 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- G01R31/1236—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 surge arresters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention discloses a system for testing leakage current of side glaze of a resistor sheet of a lightning arrester, which comprises a variable frequency power supply module, a transformer, a reactor module, a voltage divider, a peak voltage meter, a resistor sheet module, a temperature module and an oscilloscope, wherein the variable frequency power supply module is connected with the transformer; the low-voltage side of the transformer is connected with the variable-frequency power supply module, one end of the high-voltage side of the transformer is connected with the reactor module, and the other end of the high-voltage side of the transformer is connected with the voltage divider; the reactor module comprises a series reactor; one end of the peak voltmeter is connected between the high-voltage arm and the low-voltage arm of the voltage divider; the temperature module is used for providing corresponding temperature for the test resistor. The lightning arrester resistor sheet side glaze leakage current testing system provided by the embodiment of the invention can effectively prevent the interference of cutoff current, has a simple circuit topological structure, and can accurately reflect the insulation condition of the lightning arrester.
Description
Technical field
The present invention relates to field of electrical equipment more particularly to a kind of arrester resistor-piece side glaze leakage current test macros.
Background technique
The core component of arrester is zinc oxide resistance sheet, and the superiority and inferiority of performance will have a direct impact on the service life of arrester
With whole electric property.Zinc-oxide resistor-piece side glaze is an important factor for influencing its electric property.In general, glaze
Layer is coated in the side of resistor disc, and under normal specified power-frequency voltage, arrester can regard an insulator as, and pass through oxygen
The electric current for changing zinc resistor disc is called the leakage current of Zinc-Oxide Arrester, it is contemplated that scope range of the fluctuation of voltage is let out at 0.75U1mA
Leakage is the smaller the better in principle no more than 50 μ A.Leakage current can react the insulation situation of arrester, be that working voltage judges
The important means of arrester electric property.The test macro of the existing leakage current to arrester, circuit topology is complex, nothing
Method embodies influence of the temperature to resistor-piece side glaze simultaneously, and will receive the influence of short circuit electric current, to influence to lightning-arrest
The calculating of the leakage current of device so that test macro is unable to get correct leakage current, and then generates the electric property of arrester
The judgement of mistake influences it and correctly uses.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide one kind can accurately test arrester resistor disc in different items
The arrester resistor-piece side glaze leakage current test macro of leakage current under part.
To achieve the goals above, the present invention provides a kind of arrester resistor-piece side glaze leakage current test macro,
Include: variable-frequency power sources module, transformer, reactor module, divider, peak-reading voltmeter, resistor disc module, thermal module and shows
Wave device.
Wherein, the variable-frequency power sources module includes variable-frequency power sources, and the variable-frequency power sources is for exporting pure sine wave.
The low-pressure side of the transformer is connect with the variable-frequency power sources module, on high-tension side one end of the transformer and institute
Reactor module connection is stated, the on high-tension side other end of the transformer is connect with the divider.
The reactor module includes current-limiting reactor, is used for limiting short-circuit current.
One end of the peak-reading voltmeter is connected between the high-voltage arm and low-voltage arm of the divider, the crest voltage
The other end of table is connected with the on high-tension side other end of the transformer, and the other end ground connection of the peak-reading voltmeter.
The resistor disc module comprising the sample resistance and test resistance of series connection, the test resistance include extremely
Few two concatenated resistor discs, and the resistor disc wired in parallel is at the both ends of the divider.
The thermal module is used to provide corresponding temperature for the test resistance.
The oscillograph, communication ends are connected between the sample resistance and the test resistance, described for measuring
The voltage value of sample resistance, and according to the voltage value, calculate corresponding leakage current value.
As an improvement of the above scheme, the quantity of the resistor disc is 12.
As an improvement of the above scheme, the glaze layer of the resistor disc is glaze I.
As an improvement of the above scheme, the glaze layer of the resistor disc is glaze II.
As an improvement of the above scheme, the glaze layer of the resistor disc is glass glaze.
As an improvement of the above scheme, the output voltage of the transformer is 20~1000kV.
As an improvement of the above scheme, the resistance value of the sample resistance is 10k Ω.
As an improvement of the above scheme, the resistor disc is GA2 type resistor disc.
As an improvement of the above scheme, the resistor disc is GB2 type resistor disc.
Arrester resistor-piece side glaze leakage current test macro provided by the invention, by combine specific variable-frequency power sources,
Transformer, reactor module, divider, peak-reading voltmeter, resistor disc module, thermal module and oscillograph, can effectively mould
The work condition state of quasi- resistor disc at different ambient temperatures, while interference of the short circuit current to voltage is prevented, so that entire lightning-arrest
Device resistor-piece side glaze leakage current test macro can be to the different arrester resistor discs under different temperatures, different working conditions
Leakage current is effectively tested and is calculated, and circuit topological structure is simple, can accurately react the insulation situation of arrester.
Detailed description of the invention
In order to illustrate more clearly of technical solution of the present invention, attached drawing needed in embodiment will be made below
Simply introduce, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, general for this field
For logical technical staff, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural representation of arrester resistor-piece side glaze leakage current test macro provided in an embodiment of the present invention
Figure；
Fig. 2 is a kind of partial test of arrester resistor-piece side glaze leakage current test macro provided in an embodiment of the present invention
Tables of data；
Fig. 3 is the measurement chart of GA2 type resistor disc power frequency Leakage Current provided in an embodiment of the present invention；
Fig. 4 is the measurement chart of GB2 type resistor disc power frequency Leakage Current provided in an embodiment of the present invention.
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
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the embodiment of the present invention, it should be noted that can be practiced in a distributed computing environment, In
In these distributed computing environment, by executing task by the connected remote processing devices of communication network.In addition, this hair
It is bright to can be used for including in numerous general or special purpose computing device environment or configurations.Such as: personal computer, server calculate
Machine, handheld device or portable device, laptop device, multi-processor device, the distribution including any of the above devices or devices
Formula calculates environment etc..
One embodiment of the invention provides a kind of arrester resistor-piece side glaze leakage current test macro, specifically, please join
See Fig. 1, is a kind of structural schematic diagram of arrester resistor-piece side glaze leakage current test macro provided by the invention comprising become
Frequency power module, transformer, reactor module, divider, peak-reading voltmeter, resistor disc module, thermal module and oscillograph.
The variable-frequency power sources module includes variable-frequency power sources, and the variable-frequency power sources is for exporting pure sine wave.
The low-pressure side of the transformer is connect with the variable-frequency power sources module, on high-tension side one end of the transformer and institute
Reactor module connection is stated, the on high-tension side other end of the transformer is connect with the divider.
The reactor module includes current-limiting reactor, is used for limiting short-circuit current.
One end of the peak-reading voltmeter is connected between the high-voltage arm and low-voltage arm of the divider, the crest voltage
The other end of table is connected with the on high-tension side other end of the transformer, and the other end ground connection of the peak-reading voltmeter.
The resistor disc module comprising the sample resistance and test resistance of series connection, the test resistance include extremely
Few two concatenated resistor discs, and the resistor disc wired in parallel is at the both ends of the divider.
The thermal module is used to provide corresponding temperature for the test resistance.
The oscillograph, communication ends are connected between the sample resistance and the test resistance, described for measuring
The voltage value of sample resistance, and according to the voltage value, calculate corresponding leakage current value.
A kind of arrester resistor-piece side glaze leakage current test macro provided in an embodiment of the present invention, it is specific by combining
Variable-frequency power sources, transformer, reactor module, divider, peak-reading voltmeter, resistor disc module, thermal module and oscillograph, can be with
The effectively work condition state of artifical resistance piece at different ambient temperatures, while interference of the short circuit current to voltage is prevented, so that
Entire arrester resistor-piece side glaze leakage current test macro can be to the different arresters under different temperatures, different working conditions
The leakage current of resistor disc is effectively tested and is calculated, and circuit topological structure is simple, can accurately react the exhausted of arrester
Edge situation.
It should be noted that Fig. 2 is referred to, for a kind of arrester resistor-piece side glaze electric leakage provided in an embodiment of the present invention
The partial test tables of data of current test system.When carrying out the calculating of leakage current, the electricity to the resistor disc of entire arrester first
Resistance piece module is quickly ramped up to 75%Ur, and (wherein Ur is the approximation of flashover voltage, is determined by the operating condition and parameter of actual arrester
It is fixed), then voltage is increased with the speed of 2%U/s.Different voltage is applied to specific resistor disc module, while thermal module is used
In providing different temperature, in the present embodiment, preferably room temperature, 60 DEG C, 120 DEG C and 160 DEG C of temperature condition, sample resistance
It is then fixed according to ohm by measuring its voltage value on oscillograph depending on resistance value is by actual test situation for adjustable resistance
Rule, calculates corresponding leakage current value.
Preferably, in the present embodiment, the quantity of the resistor disc is 12.It should be noted that the resistor disc
Depending on quantity is by actual conditions.
Preferably, in the present embodiment, the glaze layer of the resistor disc is glaze I.
Preferably, in the present embodiment, the glaze layer of the resistor disc is glaze II.
Preferably, in the present embodiment, the glaze layer of the resistor disc is glass glaze.
Preferably, in the present embodiment, the output voltage of the transformer is 20~1000kV.It should be noted that such as
Shown in Fig. 2, in the present embodiment, preferably several different application voltage values are as representing to reflect under different temperatures not
With the leakage current value of resistor disc.
Preferably, in the present embodiment, the resistance value of the sample resistance is 10k Ω.The resistance value of the sample resistance can also
Depending on actual test macro.
Preferably, in the present embodiment, the resistor disc is GA2 type resistor disc.Specifically, Fig. 3 is referred to, for the present invention
The measurement chart for the GA2 type resistor disc power frequency Leakage Current that embodiment provides.
Preferably, in the present embodiment, the resistor disc is GB2 type resistor disc.Specifically, Fig. 4 is referred to, for the present invention
The measurement chart for the GB2 type resistor disc power frequency Leakage Current that embodiment provides.
A kind of arrester resistor-piece side glaze leakage current test macro provided in an embodiment of the present invention, it is specific by combining
Variable-frequency power sources, transformer, reactor module, divider, peak-reading voltmeter, resistor disc module, thermal module and oscillograph, can be with
The effectively work condition state of artifical resistance piece at different ambient temperatures, while interference of the short circuit current to voltage is prevented, so that
Entire arrester resistor-piece side glaze leakage current test macro can be to the different arresters under different temperatures, different working conditions
The leakage current of resistor disc is effectively tested and is calculated, and circuit topological structure is simple, can accurately react the exhausted of arrester
Edge situation.
Above disclosed is only some preferred embodiments of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and weighs according to the present invention
Benefit requires made equivalent variations, still belongs to the scope covered by the invention.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer-readable storage medium
In, the program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Claims (9)
1. a kind of arrester resistor-piece side glaze leakage current test macro characterized by comprising variable-frequency power sources module, transformation
Device, reactor module, divider, peak-reading voltmeter, resistor disc module, thermal module and oscillograph；
The variable-frequency power sources module includes variable-frequency power sources, and the variable-frequency power sources is for exporting pure sine wave；
The low-pressure side of the transformer is connect with the variable-frequency power sources module, on high-tension side one end of the transformer and the electricity
Anti- device module connection, the on high-tension side other end of the transformer are connect with the divider；
The reactor module includes current-limiting reactor, is used for limiting short-circuit current；
One end of the peak-reading voltmeter is connected between the high-voltage arm and low-voltage arm of the divider, the peak-reading voltmeter
The other end is connected with the on high-tension side other end of the transformer, and the other end ground connection of the peak-reading voltmeter；
The resistor disc module comprising the sample resistance and test resistance of series connection, the test resistance include at least two
A concatenated resistor disc, and the resistor disc wired in parallel is at the both ends of the divider；
The thermal module is used to provide corresponding temperature for the test resistance；
The oscillograph, communication ends are connected between the sample resistance and the test resistance, for measuring the sampling
The voltage value of resistance, and according to the voltage value, calculate corresponding leakage current value.
2. arrester resistor-piece side glaze leakage current test macro according to claim 1, which is characterized in that the resistance
The quantity of piece is 12.
3. arrester resistor-piece side glaze leakage current test macro according to claim 1, which is characterized in that the resistance
The glaze layer of piece is glaze I.
4. arrester resistor-piece side glaze leakage current test macro according to claim 1, which is characterized in that the resistance
The glaze layer of piece is glaze II.
5. arrester resistor-piece side glaze leakage current test macro according to claim 1, which is characterized in that the resistance
The glaze layer of piece is glass glaze.
6. arrester resistor-piece side glaze leakage current test macro according to claim 1, which is characterized in that the transformation
The output voltage of device is 20~1000kV.
7. arrester resistor-piece side glaze leakage current test macro according to claim 1, which is characterized in that the sampling
The resistance value of resistance is 10k Ω.
8. arrester resistor-piece side glaze leakage current test macro according to claim 1, which is characterized in that the resistance
Piece is GA2 type resistor disc.
9. arrester resistor-piece side glaze leakage current test macro according to claim 1, which is characterized in that the resistance
Piece is GB2 type resistor disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910902799.6A CN110531209A (en) | 2019-09-23 | 2019-09-23 | Lightning arrester resistor sheet side glaze leakage current test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910902799.6A CN110531209A (en) | 2019-09-23 | 2019-09-23 | Lightning arrester resistor sheet side glaze leakage current test system |
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| Publication Number | Publication Date |
|---|---|
| CN110531209A true CN110531209A (en) | 2019-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910902799.6A Pending CN110531209A (en) | 2019-09-23 | 2019-09-23 | Lightning arrester resistor sheet side glaze leakage current test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111115286A (en) * | 2019-12-21 | 2020-05-08 | 江苏达晨冠图电气科技有限公司 | Automatic test production line for zinc oxide resistance card with high work smoothness |
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