CN103063987B - Test method of dry type smoothing reactor end-to-end medium-frequency oscillator capacitor discharge - Google Patents
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- CN103063987B CN103063987B CN201210565452.5A CN201210565452A CN103063987B CN 103063987 B CN103063987 B CN 103063987B CN 201210565452 A CN201210565452 A CN 201210565452A CN 103063987 B CN103063987 B CN 103063987B
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- 238000009499 grossing Methods 0.000 title claims abstract description 31
- 239000003990 capacitor Substances 0.000 title claims abstract description 21
- 238000010998 test method Methods 0.000 title claims abstract description 11
- 239000004020 conductor Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
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Abstract
The invention relates to a test method of dry type smoothing reactor end-to-end medium-frequency oscillator capacitor discharge and belongs to the technical field of electric reactor tests. The technical scheme includes that after connected with a diverter (5) in series, a smoothing reactor (3) to be tested is respectively connected with a lighting impulse generator (1), an impact load capacitor (2) and a resistance-capacitance divider (4) and is matched with a digital recording system, and involved test procedures and involved test wave shape records are carried out according to national standards. The test method of the dry type smoothing reactor end-to-end medium-frequency oscillator capacitor discharge has the advantages that conventional lighting impulse test devices including the lighting impulse generator and the like are adopted, through the reasonable coordination of parameter calculation and devices, test wave shapes meeting the requirements of the standards can be obtained, and dry type smoothing reactor end-to-end medium-frequency oscillator capacitor discharge tests with various voltage classes can be completed.
Description
Technical field
The present invention relates to a kind of dry smoothing reactor end-to-end medium-frequency oscillator capacitor discharge test method, belong to reactor experimental technique field.
Background technology
Smoothing reactor is the visual plant in DC power transmission line, and it is arranged on for suppressing the harmonic wave in output current after converter valve, and make the direct current of output close to ideal DC, the quality thus improvement is transmitted electricity, reduces circuit and equipment loss.Smoothing reactor has dry type and oil immersed type two type.According to GB " GB/T25092-2010 D.C. high voltage transmission dry-type hollow smoothing reactor " requirement, end-to-end medium-frequency oscillator capacitor discharge test is the type approval test project of smoothing reactor, in product technology contract, be sometimes classified as again routine test project, require that the shop test of all contract products all will be carried out; The object of this test is to check smoothing reactor insulation between coils, only carries out upper terminal, and another terminal is by shunt ground connection.The oscillation frequency of standard-required end-to-end medium-frequency oscillator capacitor discharge test waveform is 300Hz--900Hz, and the duration is no less than 10ms, first amplitude of medium-frequency oscillator voltage is specified by user, and this amplitude maximum can not exceed the end-to-end switching impulse withstand voltage of smoothing reactor.Standard is also pointed out: medium-frequency oscillator capacitor discharge test impulse capacitor is produced smoothing reactor electric discharge by ball gap or isolating switch, actual oscillation frequency and duration depend on the capacity, test product inductance etc. of impulse capacitor, stray capacitance in test loop and lead-in inductance can cause overshoot at wavefront rising edge, this overshoot voltage peak value should not be considered to the amplitude of medium-frequency oscillator, and too high overshoot voltage peak value can damage impulse capacitor.Based on above testing requirements, each device fabrication producer, according to respective equipment situation, adopts respective testing program to complete the test of end-to-end medium-frequency oscillator capacitor discharge; How can complete test according to Standard, be this area technical matters urgently to be resolved hurrily.
Summary of the invention
The object of this invention is to provide a kind of dry smoothing reactor end-to-end medium-frequency oscillator capacitor discharge test method, by the reasonable coordination of device parameter each in circuit, the test waveform of standard-required can be met, according to waveform recording mode and the test routine of standard-required, complete the end-to-end medium-frequency oscillator capacitor discharge test of various electric pressure dry smoothing reactor, and can the overshoot amplitude of effective Control experiment voltage waveform, solve the problems referred to above that background technology exists.
Technical scheme of the present invention is:
A kind of dry smoothing reactor end-to-end medium-frequency oscillator capacitor discharge test method, after tested smoothing reactor serial connection shunt, connects lightning impulse generator, impact load electric capacity and RC divider respectively, and mates digital recording system;
Lightning impulse generator is plural serial stage or is connected in parallel use, changes main capacitance with satisfied test needs, have wavefront resistance, the wave terminal resistance of different resistance by the connection combination of serial or parallel connection;
Impact load electric capacity is multistage electric capacity stacking type, can flexible capacitance by short circuit bar;
RC divider has at least two and measures intrinsic standoff ratio to meet the measurement needs of different tests voltage;
Shunt is noninductive resistance, has different resistance;
Digital recording system at least has two recording channels, and writing time is greater than 10ms, according to criterion calculation voltage peak and waveform parameter, can carry out optimum configurations;
Test pack is containing following steps:
1.according to the oscillation frequency (300Hz--900Hz) of the test waveform of standard-required and the inductance value L of tested smoothing reactor, calculate the main capacitance C of lightning impulse generator, computing formula C=1/ ω
2l;
2. according to the progression of the surge generator main capacitance C calculated, lightning impulse generator level electric capacity, step voltage and test specimen trial voltage value determination lightning impulse generator serial or parallel connection, and wavefront resistance, the wave terminal resistance of suitable resistance is equipped with;
3.select the RC divider measuring voltage ratio of coupling according to trial voltage value, under the trial voltage reduced, adjust wavefront resistance, wave terminal resistance, load capacity value and shunt resistance value, until waveform parameter meets the demands;
4.after test waveform meets the demands, complete product testing according to GB test routine.
Tested smoothing reactor and the connection being connected in series shunt, lightning impulse generator, impact load electric capacity and RC divider, adopt cross section to be not less than 2.5mm
2copper conductor carry out connection.
The test routine that the present invention relates to carries out according to national standard; The test waveform record related to carries out according to national standard.
Good effect of the present invention: utilize the conventional lightning impulse test equipment such as lightning impulse generator, calculated by parameter and the reasonable coordination of equipment, the test waveform of standard-required can be met, complete the end-to-end medium-frequency oscillator capacitor discharge test of various electric pressure dry smoothing reactor.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention connection schematic diagram;
In figure: lightning impulse generator 1, impact load electric capacity 2, tested smoothing reactor 3, RC divider 4, shunt 5.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention will be further described.
A kind of dry smoothing reactor end-to-end medium-frequency oscillator capacitor discharge test method, after tested smoothing reactor 3 is connected in series shunt 5, connects lightning impulse generator 1, impact load electric capacity 2 and RC divider 4 respectively, and mates digital recording system;
Lightning impulse generator is plural serial stage or is connected in parallel use, changes main capacitance with satisfied test needs, have wavefront resistance, the wave terminal resistance of different resistance by the connection combination of serial or parallel connection;
Impact load electric capacity is multistage electric capacity stacking type, can flexible capacitance by short circuit bar;
RC divider has at least two and measures intrinsic standoff ratio to meet the measurement needs of different tests voltage;
Shunt is noninductive resistance, has different resistance;
Digital recording system at least has two recording channels, and writing time is greater than 10ms, according to criterion calculation voltage peak and waveform parameter, can carry out optimum configurations;
Test pack is containing following steps:
1.according to the oscillation frequency (300Hz--900Hz) of the test waveform of standard-required and the inductance value L of tested smoothing reactor, calculate the main capacitance C of lightning impulse generator, computing formula C=1/ ω
2l;
2. according to the progression of the surge generator main capacitance C calculated, lightning impulse generator level electric capacity, step voltage and test specimen trial voltage value determination lightning impulse generator serial or parallel connection, and wavefront resistance, the wave terminal resistance of suitable resistance is equipped with;
3.select the RC divider measuring voltage ratio of coupling according to trial voltage value, under the trial voltage reduced, adjust wavefront resistance, wave terminal resistance, load capacity value and shunt resistance value, until waveform parameter meets the demands;
4.after test waveform meets the demands, complete product testing according to GB test routine.
Tested smoothing reactor and the connection being connected in series shunt, lightning impulse generator, impact load electric capacity and RC divider, adopt cross section to be not less than 2.5mm
2copper conductor carry out connection.
The test routine that the present invention relates to carries out according to national standard; The test waveform record related to carries out according to national standard.
Lightning impulse generator operating impulse voltage level should be able to meet trial voltage requirement and have enough nargin; Impact load capacitance operation surge voltage level should be able to meet trial voltage requirement; RC divider operating impulse voltage level also will meet trial voltage requirement.
Claims (2)
1. a dry smoothing reactor end-to-end medium-frequency oscillator capacitor discharge test method, after it is characterized in that tested smoothing reactor (3) serial connection shunt (5), in parallel with lightning impulse generator (1), impact load electric capacity (2) and RC divider (4) respectively, and mate digital recording system;
Lightning impulse generator is plural serial stage or is connected in parallel use, changes main capacitance with satisfied test needs, have wavefront resistance, the wave terminal resistance of different resistance by the connection combination of serial or parallel connection;
Impact load electric capacity is multistage electric capacity stacking type, can flexible capacitance by short circuit bar;
RC divider has at least two and measures intrinsic standoff ratio to meet the measurement needs of different tests voltage;
Shunt is noninductive resistance, has different resistance;
Digital recording system at least has two recording channels, and writing time is greater than 10ms, according to GB calculating voltage peak value and waveform parameter, carries out optimum configurations;
Test pack is containing following steps:
1. according to the oscillation frequency 300Hz--900Hz of the test waveform of Standard and the inductance value L of tested smoothing reactor, the main capacitance C of lightning impulse generator is calculated, computing formula C=1/ ω
2l;
2. according to the progression of the surge generator main capacitance C calculated, lightning impulse generator level electric capacity, step voltage and test specimen trial voltage value determination lightning impulse generator serial or parallel connection, and wavefront resistance, the wave terminal resistance of suitable resistance is equipped with;
3.select the RC divider measuring voltage ratio of coupling according to trial voltage value, under the trial voltage reduced, adjust wavefront resistance, wave terminal resistance, load capacity value and shunt resistance value, until waveform parameter meets the demands;
4.after test waveform meets the demands, complete product testing according to GB test routine.
2. a kind of dry smoothing reactor according to claim 1 end-to-end medium-frequency oscillator capacitor discharge test method, it is characterized in that tested smoothing reactor and the connection being connected in series shunt, lightning impulse generator, impact load electric capacity and RC divider, adopt cross section to be not less than 2.5mm
2copper conductor carry out connection.
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| CN104793027A (en) * | 2015-04-27 | 2015-07-22 | 四川省绵竹西南电工设备有限责任公司 | Multi-range adjustable equivalent load for experiments |
| CN105223532B (en) * | 2015-10-27 | 2018-06-29 | 西安交通大学 | A kind of method for diagnosing faults of dry reactor higher-order of oscillation impulse withstand voltage experiment |
| CN105223484A (en) * | 2015-10-27 | 2016-01-06 | 西安交通大学 | A kind of dry reactor higher-order of oscillation impulse voltage endurance test method and system thereof |
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| TW201120467A (en) * | 2009-12-03 | 2011-06-16 | Tatung Co | Frequency regulated voltage generation device applied in a high-voltage reactor voltage test and transformer sensing and partial discharge test |
| JP2011149896A (en) * | 2010-01-25 | 2011-08-04 | Nissin Electric Co Ltd | Partial discharge measuring method, locating method, and device therefor |
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| CN202614895U (en) * | 2012-05-23 | 2012-12-19 | 无锡晶磊电子有限公司 | Discharging device of three-phase reactor provided with capacitor |
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|---|---|---|---|---|
| TW201120467A (en) * | 2009-12-03 | 2011-06-16 | Tatung Co | Frequency regulated voltage generation device applied in a high-voltage reactor voltage test and transformer sensing and partial discharge test |
| JP2011149896A (en) * | 2010-01-25 | 2011-08-04 | Nissin Electric Co Ltd | Partial discharge measuring method, locating method, and device therefor |
| CN102680861A (en) * | 2011-03-15 | 2012-09-19 | 沈阳变压器研究院股份有限公司 | System and method for testing short circuit withstanding capability of transformer or electric reactor |
| CN202614895U (en) * | 2012-05-23 | 2012-12-19 | 无锡晶磊电子有限公司 | Discharging device of three-phase reactor provided with capacitor |
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| 干式空心电抗器匝间过电压试验技术研究;徐林峰 等;《高压电器》;20120731;第48卷(第7期);71-75 * |
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