CN203630197U - An arrester power frequency current testing apparatus - Google Patents
An arrester power frequency current testing apparatus Download PDFInfo
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- CN203630197U CN203630197U CN201320825256.7U CN201320825256U CN203630197U CN 203630197 U CN203630197 U CN 203630197U CN 201320825256 U CN201320825256 U CN 201320825256U CN 203630197 U CN203630197 U CN 203630197U
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- lightning arrester
- power current
- capacitor
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 239000003990 capacitor Substances 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims description 7
- 239000013307 optical fiber Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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Abstract
The utility model discloses an arrester power frequency current testing apparatus comprising a charging loop and a capacitor charged through the charging loop. The capacitor is connected with a wave modulation inductor and a discharging sphere gap successively and is then connected with a test object for discharging. The test object is connected with a voltage divider in parallel. A current divider is connected between the test object and the capacitor. The charging loop and the discharging sphere gap are connected with a control unit controlling the work thereof. The voltage divider and the current divider are connected with a measuring unit which measures the voltage and the current thereof. The control unit is used for controlling of charge of the capacitor and the discharging to the test object by the discharging sphere gap and thus the power frequency current half-wave is generated; the measuring unit collects the wave forms of the voltage divider and the current divider and the wave form parameters of the voltage and the current borne by the test object are collected in a computer for analysis and recording; and the measurement and recording of the wave form parameters of the voltage and the current generated when the power frequency current half-wave flows through the test object are achieved.
Description
Technical field
The utility model relates to test of lightning arrester field, particularly a kind of lightning arrester power current test unit.
Background technology
Lightning arrester is the important protective device of electric system, widespread use in electric system and string benefit device, and the measurement of lightning arrester power frequency parameter and research are very important to lightning arrester with coordinating of systematic parameter, especially string are mended to device lightning arrester.Testing laboratory adopt testing transformer to lightning arrester the characteristic under little power current can measure, but need to drop into jumbo testing transformer to large power current test, the testing transformer adopting at present also cannot be realized lightning arrester by the power current half-wave test of kilo-ampere level.
Summary of the invention
The purpose of this utility model is to provide a kind of lightning arrester power current test unit, solves existing proving installation and cannot realize lightning arrester by the problem of kilo-ampere level power current half-wave test.
In order to achieve the above object, the utility model is achieved by the following technical solutions:
A kind of lightning arrester power current test unit, comprise charge circuit, the capacitor charging by charge circuit, described capacitor connects successively harmonic inductance and after ball discharge gap, is connected electric discharge with test product, described test product is parallel with voltage divider, is also connected with shunt between test product and capacitor; Described charge circuit and ball discharge gap are connected with the control module of controlling its work, and described voltage divider and shunt are connected with the measuring unit of measuring respectively its voltage and current.
Described charge circuit adopts constant pressure source or constant current source.
Described ball discharge gap is the spherical or semisphere that copper or graphite are made, and ball discharge gap form is fixed or pneumatic type.
Described capacitor is made up of 20～26 Parallel-connected Capacitors.
Described voltage divider adopts high-voltage probe, capacitive divider or resitstance voltage divider.
Described shunt adopts divertor or current mutual inductor coil.
Described measuring unit comprises capture card, utilizes capture card to gather respectively the voltage waveform of voltage divider and shunt.
Described measuring unit is provided with has the interface that telecommunication is provided to host computer.
Described communication interface is RS485 interface, optical fiber interface or wireless communication interface.
Described control module adopts single-chip microcomputer.
The utility model adopts control module to send control signal to charge circuit and ball discharge gap respectively, make capacitor charging and discharging ball-gap discharge, capacitor discharges to test product by harmonic inductance, ball discharge gap, can produce amplitude is 0.01kA～2kA power current half-wave, and the voltage and current waveform parameter collection of test product being born by measuring unit, then deliver in computing machine and analyze and record.Charge to capacitor by charge circuit, then pass through ball discharge gap to the large power current of test product discharge generation, solving prior art directly uses transformer cannot produce the problem of large power current, this test unit investment is little, loss is low, and the voltage and current waveform parameter having realized when lightning arrester passes through power current half-wave is measured and record.
Further, measuring unit is provided with the interface that telecommunication is provided to host computer, can directly measurement parameter be delivered to host computer and calculate, analyzes, and practicality is stronger.
Accompanying drawing explanation
Fig. 1 is a kind of lightning arrester power current test unit structural representation of the present utility model
In figure: 1, charge circuit; 2, capacitor; 3, harmonic inductance; 4, ball discharge gap; 5, voltage divider; 6, shunt 7, test product; 8, measuring unit; 9, control module.
Embodiment
With reference to Fig. 1, this lightning arrester power current test unit, comprises charge circuit 1, capacitor 2, harmonic inductance 3, ball discharge gap 4, voltage divider 5, shunt 6, test product 7, measuring unit 8 and control module 9.
Charge circuit 1 is connected to capacitor charging with capacitor 2, capacitor 2 connects successively harmonic inductance 3 and is connected with test product 7 with after ball discharge gap 4, capacitor 2 is by harmonic inductance 3 and ball discharge gap 4 is rear that test product 7 is discharged, described test product 7 is parallel with voltage divider 5, between test product 7 and capacitor 2, be also connected with shunt 6, described charge circuit 1 and ball discharge gap 4 are also connected with the control module 9 of controlling its work, control module 9 sends control signal to respectively charge circuit 1 and ball discharge gap 4, and capacitor 2 charging and discharging ball gaps 4 are discharged; Described voltage divider 5 and shunt 6 are connected with the measuring unit 6 of measuring respectively its voltage and current.
While carrying out current testing, send control signal to respectively charge circuit 1 and ball discharge gap 4 by control module 9, capacitor 2 is charged, charge circuit can adopt constant pressure source or constant current source, control module is made up of the programming device such as single-chip microcomputer, DSP, and capacitor 2 is made up of 20～26 Parallel-connected Capacitors; After capacitor charging, by harmonic inductance 3, ball discharge gap 4, test product 7 is discharged, test product is lightning arrester non-linear resistor, generation current amplitude is the power current half-wave of 0.01kA～2kA, and ball discharge gap can adopt spherical or semisphere, and material can adopt copper or graphite, the form of ball discharge gap can adopt fixed or pneumatic type, harmonic inductance 3 adopts many taps mode, obtains different inductance values, is used for harmonic; Described measuring unit 8 comprises capture card, utilizes capture card to gather respectively the voltage waveform of voltage divider 5 and shunt 6, and the voltage and current waveform parameter that test product 7 is born collects in computing machine to be analyzed and record.
Further, voltage divider 5 can adopt high-voltage probe or capacitive divider or resitstance voltage divider; Shunt 6 can adopt divertor or current mutual inductor coil, this device also has to host computer simultaneously provides remote communication interface function, described measuring unit is provided with has RS485 interface, wireless communication interface or optical fiber interface that telecommunication is provided to host computer, is transferred in computing machine and is analyzed and record gathering by communication cable, optical fiber and wireless telecommunications by the voltage and current waveform parameter of test product 7.
Claims (10)
1. a lightning arrester power current test unit, it is characterized in that, comprise charge circuit (1), by the capacitor (2) of charge circuit (1) charging, described capacitor (2) connects successively harmonic inductance (3) and is connected electric discharge with after ball discharge gap (4) with test product (7), described test product (7) is parallel with voltage divider (5), between test product (7) and capacitor (2), is also connected with shunt (6); Described charge circuit (1) and ball discharge gap (4) are connected with the control module (9) of controlling its work, and described voltage divider (5) and shunt (6) are connected with the measuring unit (6) of measuring respectively its voltage and current.
2. lightning arrester power current test unit according to claim 1, is characterized in that, described charge circuit adopts constant pressure source or constant current source.
3. lightning arrester power current test unit according to claim 1, is characterized in that, described ball discharge gap is the spherical or semisphere that copper or graphite are made, and ball discharge gap form is fixed or pneumatic type.
4. lightning arrester power current test unit according to claim 1, is characterized in that, described capacitor (2) is made up of 20～26 Parallel-connected Capacitors.
5. lightning arrester power current test unit according to claim 1, is characterized in that, described voltage divider (5) adopts high-voltage probe, capacitive divider or resitstance voltage divider.
6. lightning arrester power current test unit according to claim 1, is characterized in that, described shunt (6) adopts divertor or current mutual inductor coil.
7. lightning arrester power current test unit according to claim 1, is characterized in that, described measuring unit (8) comprises capture card, utilizes capture card to gather respectively the voltage waveform of voltage divider (5) and shunt (6).
8. lightning arrester power current test unit according to claim 1, is characterized in that, described measuring unit (8) is provided with has the interface that telecommunication is provided to host computer.
9. lightning arrester power current test unit according to claim 8, is characterized in that, described communication interface is RS485 interface, optical fiber interface or wireless communication interface.
10. lightning arrester power current test unit according to claim 1, is characterized in that, described control module (9) adopts single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825256.7U CN203630197U (en) | 2013-12-13 | 2013-12-13 | An arrester power frequency current testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825256.7U CN203630197U (en) | 2013-12-13 | 2013-12-13 | An arrester power frequency current testing apparatus |
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| Publication Number | Publication Date |
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| CN203630197U true CN203630197U (en) | 2014-06-04 |
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| CN201320825256.7U Expired - Lifetime CN203630197U (en) | 2013-12-13 | 2013-12-13 | An arrester power frequency current testing apparatus |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459236A (en) * | 2014-12-12 | 2015-03-25 | 国家电网公司 | Bipolar linkage impulse current generator |
| CN104459417A (en) * | 2014-12-25 | 2015-03-25 | 中国西电电气股份有限公司 | Energy tolerance testing device and method |
| CN106124979A (en) * | 2016-08-05 | 2016-11-16 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 500kV AC filter and breaker fracture voltage measures system and method |
| CN106646051A (en) * | 2016-12-27 | 2017-05-10 | 中国西电电气股份有限公司 | Lightning arrester testing device and lightning arrester testing method |
| CN108107300A (en) * | 2018-02-27 | 2018-06-01 | 南方电网科学研究院有限责任公司 | Lightning arrester detection circuit and device |
| CN108333451A (en) * | 2018-02-27 | 2018-07-27 | 南方电网科学研究院有限责任公司 | Operation load circuit |
| CN110308354A (en) * | 2019-07-24 | 2019-10-08 | 王炎 | A kind of multicolumn lightning arrester connected in parallel experimental rig and its test method |
| CN112666428A (en) * | 2020-12-02 | 2021-04-16 | 西安交通大学 | Vacuum gap-based lightning arrester operation simulation test system |
-
2013
- 2013-12-13 CN CN201320825256.7U patent/CN203630197U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104459236A (en) * | 2014-12-12 | 2015-03-25 | 国家电网公司 | Bipolar linkage impulse current generator |
| CN104459236B (en) * | 2014-12-12 | 2017-11-07 | 国家电网公司 | A kind of bipolarity linkage impulse current generator |
| CN104459417A (en) * | 2014-12-25 | 2015-03-25 | 中国西电电气股份有限公司 | Energy tolerance testing device and method |
| CN104459417B (en) * | 2014-12-25 | 2018-05-29 | 中国西电电气股份有限公司 | A kind of energy resistance test device and test method |
| CN106124979A (en) * | 2016-08-05 | 2016-11-16 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 500kV AC filter and breaker fracture voltage measures system and method |
| CN106124979B (en) * | 2016-08-05 | 2018-11-23 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | 500kV AC filter and breaker fracture voltage measuring system and method |
| CN106646051A (en) * | 2016-12-27 | 2017-05-10 | 中国西电电气股份有限公司 | Lightning arrester testing device and lightning arrester testing method |
| CN106646051B (en) * | 2016-12-27 | 2019-12-13 | 中国西电电气股份有限公司 | Lightning arrester testing device and method |
| CN108107300A (en) * | 2018-02-27 | 2018-06-01 | 南方电网科学研究院有限责任公司 | Lightning arrester detection circuit and device |
| CN108333451A (en) * | 2018-02-27 | 2018-07-27 | 南方电网科学研究院有限责任公司 | Operation load circuit |
| CN110308354A (en) * | 2019-07-24 | 2019-10-08 | 王炎 | A kind of multicolumn lightning arrester connected in parallel experimental rig and its test method |
| CN112666428A (en) * | 2020-12-02 | 2021-04-16 | 西安交通大学 | Vacuum gap-based lightning arrester operation simulation test system |
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Granted publication date: 20140604 |
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| CX01 | Expiry of patent term |