CN102890218B - Lightning impulse testing circuit for metal oxide arrester - Google Patents
Lightning impulse testing circuit for metal oxide arrester Download PDFInfo
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- CN102890218B CN102890218B CN201210410791.6A CN201210410791A CN102890218B CN 102890218 B CN102890218 B CN 102890218B CN 201210410791 A CN201210410791 A CN 201210410791A CN 102890218 B CN102890218 B CN 102890218B
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- voltage
- metal oxide
- test
- oxide arrester
- division module
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- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 25
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 25
- 238000005070 sampling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to a lightning impulse circuit for a metal oxide arrester, and the lightning impulse circuit comprises an impulse voltage waveform generator, an oscilloscope, a standard voltage dividing module, a first testing voltage dividing module and a second testing voltage dividing module, wherein the impulse voltage generated by the impulse voltage waveform generator is connected into the oscilloscope after passing through the standard voltage dividing module, the first testing voltage dividing module and the second testing voltage dividing module, respectively; the first testing voltage dividing module comprises a metal oxide arrester, a counter and a first resistance-type voltage divider; one end of the metal oxide arrester is connected with the impulse voltage waveform generator, while the other end thereof is grounded through the counter and the first resistance-type voltage divider; and the voltage dividing output end of the first resistance-type voltage divider is connected with the oscilloscope. Compared with the prior art, the lightning impulse circuit divides the impulse voltage into three divided voltages so as to obtain the voltage signals; and the voltage signals are used for analyzing and studying the lightning impulse performance of the metal oxide arrester so that accurate lightning impulse test data can be obtained.
Description
Technical field
The present invention relates to a kind of lightning impulse test circuit, especially relate to a kind of lightning impulse test circuit for metal oxide arrester.
Background technology
Lightning arrester is the basis of all kinds of electrical equipment of electric system (transformer, reactor, generator, motor, PT, CT, isolating switch, contactor etc.) Insulation Coordination, by all electrical equipments of protective value determination electric system of lightning arrester external insulation index (in short-term industrial frequency withstand voltage, lightning impulse is withstand voltage and switching impulse withstand voltage etc.).Metal oxide arrester is the lightning arrester of new generation of 20th century the eighties penetration and promotion in the world by U.S., Deng state, is state-of-the-art product in conventional lightning arrester.The core work element of this product adopts the multielement metal oxide powder based on zinc paste to fire, there is excellent nonlinear wind vibration, but the domestic research for metal oxide arrester lightning impulse test is relatively less at present, and lack effective detection experiment means.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of lightning impulse test circuit for metal oxide arrester is provided, the method is by after carrying out three tunnel dividing potential drops to surge voltage, obtain its voltage signal, for analyzing and researching to the lightning impulse performance of metal oxide arrester, lightning impulse test data accurately can be obtained.
Object of the present invention can be achieved through the following technical solutions:
A kind of lightning impulse test circuit for metal oxide arrester, comprise High Voltage Impulse Waveform generator, oscillograph, standard scores die block, first test division module and the second test division module, the surge voltage that described High Voltage Impulse Waveform generator produces is respectively through standard scores die block, oscillograph is accessed after first test division module and the second test division module dividing potential drop, the first described test division module comprises metal oxide arrester, counter and the first resistance divider, one end of described metal oxide arrester connects High Voltage Impulse Waveform generator, the other end is by counter and the first resistance divider ground connection, the dividing potential drop output terminal of the first described resistance divider connects oscillograph.
Described standard scores die block comprises resistance-capacitance type voltage divider and attenuator, and be respectively used to carry out surge voltage dividing potential drop and voltage attenuation, its output voltage is as the standard input signal of lightning impulse test.
The second described test division module comprises second resistance divider, and this second test division module and the first dividing potential drop test module produce the two-way output signal of lightning impulse test jointly.
The first described resistance divider is the resistance divider of 10kV, and intrinsic standoff ratio is 80 ~ 90, and the second described resistance divider is the resistance divider of 100kV, and intrinsic standoff ratio is 630 ~ 650.
Described oscillograph is digital filter, and analog bandwidth is 500MHz, and sampling rate is 100MS/s.
Described High Voltage Impulse Waveform generator can produce the surge voltage of different time domain parameter.
Compared with prior art, the present invention is by after carrying out three tunnel dividing potential drops to surge voltage, obtain its voltage signal, for analyzing and researching to the lightning impulse performance of metal oxide arrester, wherein, standard scores die block adopts resistance-capacitance type voltage divider and attenuator to carry out dividing potential drop and voltage attenuation, therefore the output voltage obtained can as standard input signal for lightning performance shock analysis, two other test division module is then for obtaining the different voltage signal of two-way type, and carrying out analyzing and researching obtains the lightning impulse performance of metal oxide arrester.
Accompanying drawing explanation
Fig. 1 is circuit structure diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 1, a kind of lightning impulse test circuit for metal oxide arrester, comprise High Voltage Impulse Waveform generator HV, oscillograph DPO, standard scores die block F1, first test division module F2 and second test division module F3, High Voltage Impulse Waveform generator HV is by adjustment wave head, wave terminal resistance produces the surge voltage of different time domain parameter, its surge voltage produced is respectively through standard scores die block F1, oscillograph DPO is accessed after first test division module F2 and second test division module F3 dividing potential drop, obtain voltage waveform, carry out the analysis of lightning impulse data.
Wherein, standard scores die block F1 comprises resistance-capacitance type voltage divider and attenuator, and be respectively used to carry out surge voltage dividing potential drop and voltage attenuation, its output voltage is as the standard input signal of lightning impulse test.
A first test point pressing mold F2 block comprises metal oxide arrester MOA, counter JSQ and the first resistance divider, one end of metal oxide arrester MOA connects High Voltage Impulse Waveform generator HV, the other end is by counter JSQ and the first resistance divider ground connection, and the dividing potential drop output terminal of the first resistance divider connects oscillograph DPO.
Second test division module F3 comprises second resistance divider, and this second test division module F3 and the first dividing potential drop test module F2 produces the two-way output signal of lightning impulse test jointly.
First resistance divider is the resistance divider of 10kV, and intrinsic standoff ratio is the 80 ~ 90, second resistance divider is the resistance divider of 100kV, and intrinsic standoff ratio is 630 ~ 650.Oscillograph is digital filter, and analog bandwidth is 500MHz, and during test, the sampling rate of setting is 100MS/s.
Claims (3)
1. the lightning impulse test circuit for metal oxide arrester, comprise High Voltage Impulse Waveform generator, oscillograph, standard scores die block, first test division module and the second test division module, the surge voltage that described High Voltage Impulse Waveform generator produces is respectively through standard scores die block, oscillograph is accessed after first test division module and the second test division module dividing potential drop, it is characterized in that, the first described test division module comprises metal oxide arrester, counter and the first resistance divider, one end of described metal oxide arrester connects High Voltage Impulse Waveform generator, the other end is respectively by counter and the first resistance divider ground connection, the dividing potential drop output terminal of the first described resistance divider connects oscillograph,
Described standard scores die block comprises resistance-capacitance type voltage divider and attenuator, and be respectively used to carry out surge voltage dividing potential drop and voltage attenuation, its output voltage is as the standard input signal of lightning impulse test;
The second described test division module comprises second resistance divider, and this second test division module and the first test division module produce the two-way output signal of lightning impulse test jointly.
2. a kind of lightning impulse test circuit for metal oxide arrester according to claim 1, it is characterized in that, the first described resistance divider is the resistance divider of 10kV, intrinsic standoff ratio is 80 ~ 90, the second described resistance divider is the resistance divider of 100kV, and intrinsic standoff ratio is 630 ~ 650.
3. a kind of lightning impulse test circuit for metal oxide arrester according to claim 1, is characterized in that, described High Voltage Impulse Waveform generator can produce the surge voltage of different time domain parameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410791.6A CN102890218B (en) | 2012-10-24 | 2012-10-24 | Lightning impulse testing circuit for metal oxide arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410791.6A CN102890218B (en) | 2012-10-24 | 2012-10-24 | Lightning impulse testing circuit for metal oxide arrester |
Publications (2)
| Publication Number | Publication Date |
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| CN102890218A CN102890218A (en) | 2013-01-23 |
| CN102890218B true CN102890218B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210410791.6A Active CN102890218B (en) | 2012-10-24 | 2012-10-24 | Lightning impulse testing circuit for metal oxide arrester |
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| CN (1) | CN102890218B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954858B (en) * | 2014-04-11 | 2016-04-27 | 辽宁工业大学 | Airborne antenna lightning effects test macro and method |
| CN106597148A (en) * | 2016-11-24 | 2017-04-26 | 云南电网有限责任公司电力科学研究院 | Residual voltage monitoring based state monitoring system and method for lightning arrester without serial gap |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08254564A (en) * | 1995-03-17 | 1996-10-01 | Mitsubishi Electric Corp | Inspection equipment for leak current detector for arrester and simulated leak current generation circuit for arrester |
| CN101639507B (en) * | 2009-07-16 | 2012-06-13 | 中国电力科学研究院 | Controllable metal oxide arrester action characteristic testing device and method therefor |
| CN201522532U (en) * | 2009-08-24 | 2010-07-07 | 中国电力科学研究院 | Testing device for residual voltage and electrical current distribution characteristic of whole lightning protector |
| CN102023250A (en) * | 2009-09-22 | 2011-04-20 | 华东电力试验研究院有限公司 | Metal oxide arrester monitoring device |
| CN101819868B (en) * | 2010-05-04 | 2011-11-30 | 中国电力科学研究院 | Extra-high-voltage equal potential shielded capacitor voltage transformer |
| CN102033184B (en) * | 2011-01-20 | 2013-03-27 | 辽宁省电力有限公司 | Voltage distribution wireless measurement system of lightning arrester |
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| CN102890218A (en) | 2013-01-23 |
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