CN102162829A - Experimental device for multiple lightning current return strokes of surge protection device (SPD) - Google Patents
Experimental device for multiple lightning current return strokes of surge protection device (SPD) Download PDFInfo
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- CN102162829A CN102162829A CN2011100659509A CN201110065950A CN102162829A CN 102162829 A CN102162829 A CN 102162829A CN 2011100659509 A CN2011100659509 A CN 2011100659509A CN 201110065950 A CN201110065950 A CN 201110065950A CN 102162829 A CN102162829 A CN 102162829A
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Abstract
本发明公开了一种电涌保护器雷电流多次回击试验装置，它由光纤隔离智能化冲击控制回路、单电源多馈出高压充电回路、多脉冲时序点火回路和多次回击放电主回路构成，用于模拟自然雷电条件下雷电流多次回击的工况及效应。本装置可对1路电涌保护器、接闪器、避雷器、接地材料等进行1—10次、8/20μs及其它波形雷电流回击序列试验，回击电流次数1-10次可选，回击电流间时间间隔从1μs-100μs、1ms-500ms之间可调，回击电流幅值各次等幅或不等幅试验系列可调，也可对最多10个电涌保护器、接闪器、避雷器、接地材料等同时进行试验，为雷电流多次回击的工况模拟及效应试验提供了新的手段。
The invention discloses a lightning current multiple return strike test device for a surge protector, which is composed of an optical fiber isolation intelligent impact control circuit, a single power supply multi-feedback high-voltage charging circuit, a multi-pulse sequential ignition circuit and a multiple return strike discharge main circuit , which is used to simulate the working conditions and effects of multiple strikes by lightning current under natural lightning conditions. This device can conduct 1-10 times, 8/20μs and other waveform lightning current return stroke sequence tests on 1-way surge protector, lightning receptor, lightning arrester, grounding material, etc. The number of times of return current is 1-10 times optional. The time interval is adjustable from 1μs-100μs, 1ms-500ms, and the return current amplitude is adjustable for each test series with equal amplitude or unequal amplitude. It can also be used for up to 10 surge protectors, lightning arresters, lightning arresters, Simultaneous testing of grounding materials, etc., provides a new means for the simulation and effect test of multiple strikes by lightning current.
Description
Technical field
The invention belongs to the electrical engineering technical field, particularly a kind of surge protector is carried out the test unit that lightning current is repeatedly fought back test.
Background technology
The thunderbolt lightning of occurring in nature is meant once complete Lightning Process, and its duration is that the hundreds of millisecond did not wait to 1 second.Lightning comprises once or heavy current pulse process several times, each heavy current pulse process is called launch as surprise attack, the strength of current of at every turn launch aing surprise attack is different, be generally launch a surprise attack first bigger, or launch a surprise attack greatlyyer with last first, perhaps last is launch aed surprise attack greatlyyer, is generally a few tens of milliseconds the interval time between launch aing surprise attack between the hundreds of millisecond, for the flicker that occurring in nature thunderbolt lightning is presented in human eye, be to cause by launch aing surprise attack several times.
Surge protector is used for the damage that electrical and electronic products such as safeguard industries process measurement and control device avoid lightning surge; the lightning surge test is necessity test of investigating and checking surge protector protection level and performance; present test method and device only can carry out the simulation of lightning current single test; repeatedly revision test because of the time of discharging and recharging more than tens seconds; and can't simulate and examine microsecond repeatedly to fight back dynamo-electric effect and thermal effect accumulation to the lightning current in millisecond time interval, and the simulation of this class effect test and test are for surge protector; arrester; lightning arrester; the examination of products such as earthing material and device performance is very important.For example find in the actual motion by tens surge protectors to hundreds of kilo-ampere lightning current single test; under natural thunderbolt situation; some smaller lightning currents can both cause the damage of surge protector; this is to fight back because nature lightning often comprises repeatedly; interval time between each the counterattack is shorter; be generally tens delicate arriving between the hundreds of millisecond, repeatedly the cumulative effect of Hui Jiing causes the damage of surge protector.
For the thunderbolt situation under the real simulation natural conditions with examine the performance of surge protector better, we have invented a cover and have been used for the test unit that lightning current is repeatedly fought back.
Summary of the invention
Purpose of the present invention is exactly the deficiency at the above-mentioned background technology, provides a kind of surge protector lightning current repeatedly to fight back examination
Experiment device.
Technical scheme of the present invention is: a kind of surge protector lightning current is repeatedly fought back test unit, by optical fiber isolated intelligent impact control loop respectively with single supply feed out more high-voltage charging loop, multiple-pulse sequential ignition circuit and repeatedly the back discharge major loop institute that is connected constitute;
Touch-screen type man machine operation interface, analog-to-digital conversion module, optic fiber converter that described optical fiber isolated intelligent impact control loop comprises programmable logic controller (PLC) PLC and is interconnected with it are isolated optical fiber; Optic fiber converter links to each other with isolation optical fiber;
Described single supply feeds out the high-voltage charging loop more and comprises thyristor control module, transformer, the polar switching module of cascade successively and feed out the high-voltage charging switch more;
Described multiple-pulse sequential ignition circuit is by single-chip microcomputer time control circuit, multiple-pulse sequential trigger circuit and the multiple-pulse sequential firing circuit of cascade successively;
Described repeatedly back discharge major loop comprises organizes independently main discharge circuit more, is connected with main capacitor, harmonic inductance, wave regulating resistor, discharge frame and test product case on the main discharge circuit;
Described single supply feeds out high-voltage charging loop and multiple-pulse sequential ignition circuit more and links with back discharge major loop repeatedly respectively.
Have as preferred version of the present invention:
1, described single supply feeds out on the former and deputy limit of the transformer of high pressure on the electric loop more and all is connected with current-limiting resistance.
2, described single supply feed out more high pressure on the electric loop feed out that the high-voltage charging switch adopts that fast linear electric motor drives more feed out the high-voltage charging switch more.
3, described single supply feeds out high pressure more and is connected with 10 in the electric loop and feeds out the high-voltage charging switch.And correspondingly: be connected with 10 group pulse sequential ignition circuits in the described multiple-pulse sequential ignition circuit, be connected with 10 groups of independently main discharge circuits in the described repeatedly back discharge major loop.
The present invention is in practice:
Single supply feeds out that the high-voltage charging loop adopts that fast linear electric motor drives more feeds out the high-voltage charging switch more, feed out the high-voltage charging switch during charging with single channel power supply and 10 groups of repeatedly back discharge major loop main capacitor connections more, carry out group repeatedly back discharge major loop main capacitor charging of 0-200kV single channel DC high-voltage power supply to 1-10; After charging finishes, with the high-voltage charging switch with the single channel power supply with 10 groups repeatedly back discharge major loop main capacitor disconnect, realize 10 groups of major loops each other and and the single channel DC high-voltage power supply between the high pressure isolation.
Multiple-pulse sequential ignition circuit is made up of single-chip microcomputer time control circuit, multiple-pulse sequential trigger circuit, multiple-pulse sequential firing circuit; The single-chip microcomputer time control circuit adopts the Single-chip Controlling time series, the fast-response semiconductor devices realizes not having the switching value output of time-delay, realize that the trigger pulse time interval is from adjustable between 1 μ s-100 μ s, the 1ms-500ms, time precision is respectively ± 1 μ s and ± 1ms, multiple-pulse sequential trigger circuit can provide 10 the tunnel simultaneously, 200-300V does not have the delayed firing drive signal; Multiple-pulse sequential firing circuit can provide more than ten kilovolts ignition voltage to trigger each repeatedly conducting in back discharge major loop ball discharge crack.
Repeatedly the back discharge major loop by 10 groups independently main discharge circuit constitute; each major loop has independently the RLC loop element realize independently amplitude and waveform adjustment; each major loop has independently discharge frame and test product case; by 1-10 group high pressure output-parallels; can be to 1 road surge protector; arrester; lightning arrester; earthing materials etc. carry out 1-10 times; the lightning current of 8/20 μ s or other waveform is fought back test; it is optional to fight back electric current number of times 1-10 time; also can be respectively carry out the lightning current test that single 8/20 μ s obtains other waveform, different sequences or test model following interpulse period to 10 surge protectors; lightning current amplitude sequence; the counterattack number of times is adjustable.
But the thunderbolt situation under the present invention's real simulation natural conditions and examine the performance of surge protector better; can carry out 1-10 times, 8/20 μ s and other waveform lightning current is fought back sequential test to 1 road surge protector, arrester, lightning arrester, earthing material etc.; it is optional to fight back electric current number of times 1-10 time; fight back between electric current the time interval from adjustable between 1 μ s-100 μ s, the 1ms-500ms, it is adjustable to fight back current amplitude each time constant amplitude or non-constant amplitude experimental series.Also can test simultaneously maximum 10 surge protectors, arrester, lightning arrester, earthing material etc.Not only the Work condition analogue and the effect test of repeatedly fighting back at lightning current for surge protector provides new effective means, and is applicable to the similar test of arrester, lightning arrester, earthing material, has higher test efficiency and testing equivalence.
Description of drawings:
Fig. 1 is the global design figure of device.
Fig. 2 is the wiring diagram that single supply feeds out the high-voltage charging loop more.
Fig. 3 is the firing circuit schematic diagram, wherein:
(a) single-chip microcomputer time control circuit, (b) multiple-pulse sequential trigger circuit, (c) multiple-pulse sequential firing circuit.
Fig. 4 is several model experiment waveform synoptic diagram.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawing illustrated embodiment:
Optical fiber isolated intelligent impact control loop adopts programmable logic controller (PLC) PLC to control the precision maneuver of each device and the interlocking between each module, and man-machine interface adopts touch-screen to carry out visualized operation, and is simple to operate, the operation interface close friend.Analog-to-digital conversion module is sent some demonstration amounts (voltage, electric current etc.) back to programmable logic controller (PLC) PLC and is judged (as overvoltage protection, overcurrent protection etc.) for screen displaying and protection action; realize isolation electric between control system and the body by optical fiber converter and optical fiber, control system is reliable and stable.
Charge circuit is controlled the steady rising of step-up transformer voltage by control thyristor control module, realize the switching of charging polarity by the charging polarity switch, the current-limiting resistance of the former secondary of transformer help reducing whole loop charging current, reduce the capacity of transformer, save cost.
Single supply feeds out that high-voltage charging loop (2) adopts that fast linear electric motor drives more feeds out the high-voltage charging switch more, feed out the high-voltage charging switch during charging with single channel power supply and 10 groups of repeatedly back discharge major loop main capacitor connections more, carry out group repeatedly back discharge major loop main capacitor charging of 0-200kV single channel DC high-voltage power supply to 1-10; After charging finishes, with the high-voltage charging switch with single channel power supply and 10 groups repeatedly back discharge major loop main capacitor disconnect, realize 10 groups of major loops each other and and the single channel DC high-voltage power supply between high pressure isolate, reach and the multichannel major loop is carried out parallel connection charge simultaneously, the high-voltage charging switch quick acting of charged back, each major loop becomes and works alone, and has saved cost like this, has reduced floor area.
Multiple-pulse sequential ignition circuit (3) is made up of single-chip microcomputer time control circuit, multiple-pulse sequential trigger circuit, multiple-pulse sequential firing circuit; The single-chip microcomputer time control circuit adopts the Single-chip Controlling time series, the fast-response semiconductor devices realizes not having the switching value output of time-delay, realize that the trigger pulse time interval is from adjustable between 1 μ s-100 μ s, the 1ms-500ms, time precision is respectively ± 1 μ s and ± 1ms, multiple-pulse sequential trigger circuit can provide 10 the tunnel simultaneously, 200-300V does not have the delayed firing drive signal; Multiple-pulse sequential firing circuit can provide more than ten kilovolts ignition voltage to trigger each repeatedly conducting in back discharge major loop ball discharge crack.
Repeatedly back discharge major loop (4) by 10 groups independently main discharge circuit constitute; each major loop has independently main capacitor; the harmonic inductance; the wave regulating resistor loop element is realized independently amplitude and waveform adjustment; 4-40kA can be exported in each loop; 8/20 μ s lightning current; each major loop has independently discharge frame and test product case; by 1-10 group high pressure output-parallels; can be to 1 road surge protector; arrester; lightning arrester; earthing materials etc. carry out 1-10 times; the lightning current of 8/20 μ s or other waveform is fought back test; it is optional to fight back electric current number of times 1-10 time; also can be respectively carry out the lightning current test of single 8/20 μ s or other waveform, different sequences or test model following interpulse period to 10 surge protectors; lightning current amplitude sequence; the counterattack number of times is adjustable.Can finish by this major loop and to fight back the experimental series that current amplitude is constant amplitude 4-40kA for 10 times, first 80kA, other 1-8 time each time constant amplitude experimental series of dividing equally electric current; 80kA, last 80 kA, other 1-6 time each time constant amplitude experimental series of dividing equally electric current first, maximum can be carried out two groups of 200kA tests, also can test simultaneously maximum 10 surge protectors, has improved test efficiency and testing equivalence greatly.
Claims (4)
1. a surge protector lightning current is repeatedly fought back test unit, it is characterized in that:
By optical fiber isolated intelligent impact control loop respectively with single supply feed out more high-voltage charging loop, multiple-pulse sequential ignition circuit and repeatedly the back discharge major loop institute that is connected constitute, wherein:
Touch-screen type man machine operation interface, analog-to-digital conversion module, optic fiber converter that described optical fiber isolated intelligent impact control loop comprises programmable logic controller (PLC) PLC and is interconnected with it are isolated optical fiber; Optic fiber converter links to each other with isolation optical fiber;
Described single supply feeds out the high-voltage charging loop more and comprises thyristor control module, transformer, the polar switching module of cascade successively and feed out the high-voltage charging switch more;
Described multiple-pulse sequential ignition circuit is by single-chip microcomputer time control circuit, multiple-pulse sequential trigger circuit and the multiple-pulse sequential firing circuit of cascade successively;
Described repeatedly back discharge major loop comprises organizes independently main discharge circuit more, is connected with main capacitor, harmonic inductance, wave regulating resistor, discharge frame and test product case on the main discharge circuit;
Described single supply feeds out high-voltage charging loop and multiple-pulse sequential ignition circuit more and links with back discharge major loop repeatedly respectively.
2. a kind of surge protector lightning current according to claim 1 is repeatedly fought back test unit, it is characterized in that:
Described single supply feeds out on the former and deputy limit of the transformer of high pressure on the electric loop more and all is connected with current-limiting resistance.
3. a kind of surge protector lightning current according to claim 1 and 2 is repeatedly fought back test unit, it is characterized in that:
Described single supply feed out more high pressure on the electric loop feed out that the high-voltage charging switch adopts that fast linear electric motor drives more feed out the high-voltage charging switch more.
4. a kind of surge protector lightning current according to claim 1 and 2 is repeatedly fought back test unit, it is characterized in that:
Described single supply feeds out high pressure more and is connected with 10 in the electric loop and feeds out the high-voltage charging switch;
Be connected with 10 group pulse sequential ignition circuits in the described multiple-pulse sequential ignition circuit;
Be connected with 10 groups of independently main discharge circuits in the described repeatedly back discharge major loop.
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| CN 201110065950 CN102162829B (en) | 2011-03-18 | 2011-03-18 | Experimental device for multiple lightning current return strokes of surge protection device (SPD) |
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| CN 201110065950 CN102162829B (en) | 2011-03-18 | 2011-03-18 | Experimental device for multiple lightning current return strokes of surge protection device (SPD) |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890182A (en) * | 2012-10-24 | 2013-01-23 | 北京元六鸿远电子技术有限公司 | Impact current testing method |
| CN103048570A (en) * | 2012-12-25 | 2013-04-17 | 武汉大学 | Direct effect testing device for lightning current |
| CN103076472A (en) * | 2013-02-01 | 2013-05-01 | 上海电机学院 | Implementation method for small-scale full-wave direct lightning generator |
| CN103743968A (en) * | 2013-12-17 | 2014-04-23 | 上海交通大学 | Multiple lightning current tolerance test method for metal oxide lightning arrester |
| 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 |
| CN105137885A (en) * | 2015-09-17 | 2015-12-09 | 西安交通大学 | Control system and control method of multi-switch and multi-loop cooperative work |
| CN105572436A (en) * | 2014-10-21 | 2016-05-11 | 黑龙江省防雷中心 | 20-pulse multi-waveform impact generator |
| CN107565538A (en) * | 2017-10-11 | 2018-01-09 | 成都信息工程大学 | A kind of thunder and lightning multiple-pulse protector |
| CN110850255A (en) * | 2019-11-26 | 2020-02-28 | 张利华 | Test method for multiple lightning strike impulse discharge current |
| CN112180225A (en) * | 2020-10-29 | 2021-01-05 | 云南电网有限责任公司电力科学研究院 | A triple lightning strike anti-false trigger protection circuit |
| CN112305399A (en) * | 2019-08-01 | 2021-02-02 | 欣旺达电动汽车电池有限公司 | Surge testing method and device for acquisition chip at front end of BMS (battery management system) of electric automobile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05205849A (en) * | 1992-01-24 | 1993-08-13 | Mitsubishi Electric Corp | Testing method for lightning arrester |
| CN2672665Y (en) * | 2003-12-12 | 2005-01-19 | 杭州雷盾电子设备有限公司 | Detector for thunder and lighting surge |
| CN101629981A (en) * | 2009-05-19 | 2010-01-20 | 武汉大学 | Modularized multiple wave forms impact generator test device |
| CN201402297Y (en) * | 2009-05-06 | 2010-02-10 | 武汉大学 | Portable Surge Protector Tester |
| CN201681126U (en) * | 2009-11-30 | 2010-12-22 | 广东电网公司电力科学研究院 | Portable lighting protection testing device |
-
2011
- 2011-03-18 CN CN 201110065950 patent/CN102162829B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05205849A (en) * | 1992-01-24 | 1993-08-13 | Mitsubishi Electric Corp | Testing method for lightning arrester |
| CN2672665Y (en) * | 2003-12-12 | 2005-01-19 | 杭州雷盾电子设备有限公司 | Detector for thunder and lighting surge |
| CN201402297Y (en) * | 2009-05-06 | 2010-02-10 | 武汉大学 | Portable Surge Protector Tester |
| CN101629981A (en) * | 2009-05-19 | 2010-01-20 | 武汉大学 | Modularized multiple wave forms impact generator test device |
| CN201681126U (en) * | 2009-11-30 | 2010-12-22 | 广东电网公司电力科学研究院 | Portable lighting protection testing device |
Non-Patent Citations (2)
| Title |
|---|
| 刘洋 等: "智能化冲击电流试验系统", 《电力自动化设备》 * |
| 薛健 等: "电涌发生器自动化测控系统", 《电工技术杂志2004年增刊》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890182A (en) * | 2012-10-24 | 2013-01-23 | 北京元六鸿远电子技术有限公司 | Impact current testing method |
| CN103048570A (en) * | 2012-12-25 | 2013-04-17 | 武汉大学 | Direct effect testing device for lightning current |
| CN103076472A (en) * | 2013-02-01 | 2013-05-01 | 上海电机学院 | Implementation method for small-scale full-wave direct lightning generator |
| CN103743968A (en) * | 2013-12-17 | 2014-04-23 | 上海交通大学 | Multiple lightning current tolerance test method for metal oxide lightning arrester |
| CN103743968B (en) * | 2013-12-17 | 2016-07-06 | 上海交通大学 | Multiple lightning current tolerance test method for metal oxide lightning arrester |
| CN105572436B (en) * | 2014-10-21 | 2019-06-11 | 黑龙江省防雷中心 | A kind of more wave forms impact generators of 20 pulses |
| CN105572436A (en) * | 2014-10-21 | 2016-05-11 | 黑龙江省防雷中心 | 20-pulse multi-waveform impact 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 |
| CN105137885A (en) * | 2015-09-17 | 2015-12-09 | 西安交通大学 | Control system and control method of multi-switch and multi-loop cooperative work |
| CN107565538A (en) * | 2017-10-11 | 2018-01-09 | 成都信息工程大学 | A kind of thunder and lightning multiple-pulse protector |
| CN107565538B (en) * | 2017-10-11 | 2020-06-16 | 成都信息工程大学 | Thunder and lightning multi-pulse protection device |
| CN112305399A (en) * | 2019-08-01 | 2021-02-02 | 欣旺达电动汽车电池有限公司 | Surge testing method and device for acquisition chip at front end of BMS (battery management system) of electric automobile |
| CN110850255A (en) * | 2019-11-26 | 2020-02-28 | 张利华 | Test method for multiple lightning strike impulse discharge current |
| CN110850255B (en) * | 2019-11-26 | 2022-04-26 | 张利华 | Test method for multiple lightning strike impulse discharge current |
| CN112180225A (en) * | 2020-10-29 | 2021-01-05 | 云南电网有限责任公司电力科学研究院 | A triple lightning strike anti-false trigger protection circuit |
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