CN102890218A - Lightning impulse testing circuit for metal oxide arrester - Google Patents
Lightning impulse testing circuit for metal oxide arrester Download PDFInfo
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- CN102890218A CN102890218A CN2012104107916A CN201210410791A CN102890218A CN 102890218 A CN102890218 A CN 102890218A CN 2012104107916 A CN2012104107916 A CN 2012104107916A CN 201210410791 A CN201210410791 A CN 201210410791A CN 102890218 A CN102890218 A CN 102890218A
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- metal oxide
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- oxide arrester
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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 equipments of electric system (transformer, reactor, generator, motor, PT, CT, isolating switch, contactor etc.) Insulation Coordination, by the protective value of lightning arrester determine all electrical equipments of electric system interior external insulation index (in short-term industrial frequency withstand voltage, lightning impulse is withstand voltage and switching impulse withstand voltage etc.).Metal oxide arrester be 20th century the eighties by the lightning arrester of new generation that the states such as U.S., day begin in the world penetration and promotion, be state-of-the-art product in the conventional lightning arrester.The core work element of this product adopts take zinc paste as main multielement metal oxide powder and fires, has excellent non-linear volt-ampere characteristic, but at present domestic research for the metal oxide arrester lightning impulse test is relatively less, and lacks effectively detection research technique.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of lightning impulse test circuit for metal oxide arrester for the defective that overcomes above-mentioned prior art existence, after the method is carried out three tunnel dividing potential drops by impact voltage, obtain its voltage signal, be used for the lightning impulse performance of metal oxide arrester is analyzed and researched, can obtain accurately lightning impulse test data.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of lightning impulse test circuit for metal oxide arrester, comprise the High Voltage Impulse Waveform generator, oscillograph, the standard division module, the first test division module and the second test division module, the surge voltage that described High Voltage Impulse Waveform generator produces is respectively through the standard division module, access oscillograph after the first test division module and the second test division module dividing potential drop, described the first test division module comprises metal oxide arrester, counter and the first resistance divider, one end of described metal oxide arrester connects the High Voltage Impulse Waveform generator, the other end is by counter and the first resistance divider ground connection, and the dividing potential drop output terminal of described the first resistance divider connects oscillograph.
Described standard division module comprises resistance-capacitance type voltage divider and attenuator, is respectively applied to carry out surge voltage dividing potential drop and voltage attenuation, and its output voltage is as the standard input signal of lightning impulse test.
Described the second 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.
Described the first resistance divider is the resistance divider of 10kV, and intrinsic standoff ratio is 80～90, and described the second 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, after the present invention carries out three tunnel dividing potential drops by impact voltage, obtain its voltage signal, be used for the lightning impulse performance of metal oxide arrester is analyzed and researched, wherein, the standard division module adopts resistance-capacitance type voltage divider and attenuator to carry out dividing potential drop and voltage attenuation, therefore the output voltage that obtains can be used as standard input signal and is used for the lightning performance shock analysis, two other test division module then is used for obtaining the different voltage signal of two-way type, the lightning impulse performance of analyzing and researching and obtaining metal oxide arrester.
Description of drawings
Fig. 1 is circuit structure diagram of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
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 division module F1, the first test division module F2 and the second test division module F3, High Voltage Impulse Waveform generator HV is by adjusting wave head, wave rear resistance produces the surge voltage of different time domain parameter, the surge voltage of its generation is respectively through standard division module F1, access oscillograph DPO after the first test division module F2 and the second test division module F3 dividing potential drop, obtain voltage waveform, carry out the analysis of lightning impulse data.
Wherein, standard division module F1 comprises resistance-capacitance type voltage divider and attenuator, is respectively applied to carry out surge voltage dividing potential drop and voltage attenuation, and its output voltage is as the standard input signal of lightning impulse test.
A first test minute pressing mold F2 piece comprises metal oxide arrester MOA, counter JSQ and the first resistance divider, the 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.
The 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 produce the two-way output signal of lightning impulse test jointly.
The first resistance divider is the resistance divider of 10kV, and intrinsic standoff ratio is that 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 (6)
1. lightning impulse test circuit that is used for metal oxide arrester, comprise the High Voltage Impulse Waveform generator, oscillograph, the standard division module, the first test division module and the second test division module, the surge voltage that described High Voltage Impulse Waveform generator produces is respectively through the standard division module, access oscillograph after the first test division module and the second test division module dividing potential drop, it is characterized in that, described the first test division module comprises metal oxide arrester, counter and the first resistance divider, one end of described metal oxide arrester connects the High Voltage Impulse Waveform generator, the other end is by counter and the first resistance divider ground connection, and the dividing potential drop output terminal of described the first resistance divider connects oscillograph.
2. a kind of lightning impulse test circuit for metal oxide arrester according to claim 1, it is characterized in that, described standard division module comprises resistance-capacitance type voltage divider and attenuator, be respectively applied to carry out surge voltage dividing potential drop and voltage attenuation, its output voltage is as the standard input signal of lightning impulse test.
3. a kind of lightning impulse test circuit for metal oxide arrester according to claim 1, it is characterized in that, described the second 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.
4. a kind of lightning impulse test circuit for metal oxide arrester according to claim 3, it is characterized in that, described the first resistance divider is the resistance divider of 10kV, intrinsic standoff ratio is 80～90, described the second resistance divider is the resistance divider of 100kV, and intrinsic standoff ratio is 630～650.
5. a kind of lightning impulse test circuit for metal oxide arrester according to claim 1 is characterized in that described oscillograph is digital filter, and analog bandwidth is 500MHz, and sampling rate is 100MS/s.
6. 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 |
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| 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 |
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| CN102890218A true CN102890218A (en) | 2013-01-23 |
| CN102890218B CN102890218B (en) | 2015-04-15 |
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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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954858A (en) * | 2014-04-11 | 2014-07-30 | 辽宁工业大学 | Airborne antenna lightning testing system 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 |
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| 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 |
| CN101639507A (en) * | 2009-07-16 | 2010-02-03 | 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 |
| CN101819868A (en) * | 2010-05-04 | 2010-09-01 | 中国电力科学研究院 | Extra-high-voltage equal potential shielded capacitor voltage transformer |
| 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 |
| WO2012097492A1 (en) * | 2011-01-20 | 2012-07-26 | 辽宁省电力有限公司 | Wireless system for measuring voltage distribution of arrester |
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2012
- 2012-10-24 CN CN201210410791.6A patent/CN102890218B/en active Active
Patent Citations (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 |
| CN101639507A (en) * | 2009-07-16 | 2010-02-03 | 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 |
| CN101819868A (en) * | 2010-05-04 | 2010-09-01 | 中国电力科学研究院 | Extra-high-voltage equal potential shielded capacitor voltage transformer |
| WO2012097492A1 (en) * | 2011-01-20 | 2012-07-26 | 辽宁省电力有限公司 | Wireless system for measuring voltage distribution of arrester |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103954858A (en) * | 2014-04-11 | 2014-07-30 | 辽宁工业大学 | Airborne antenna lightning testing system and method |
| 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 |
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| CN102890218B (en) | 2015-04-15 |
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