CN102419411A - Combined test device and method of two impulse voltage generators - Google Patents
Combined test device and method of two impulse voltage generators Download PDFInfo
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- CN102419411A CN102419411A CN2011102650782A CN201110265078A CN102419411A CN 102419411 A CN102419411 A CN 102419411A CN 2011102650782 A CN2011102650782 A CN 2011102650782A CN 201110265078 A CN201110265078 A CN 201110265078A CN 102419411 A CN102419411 A CN 102419411A
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Abstract
The invention provides a combined test device and method of two impulse voltage generators. The test device comprises an isolation power source, a signal input module, a signal processing module, a first triggering signal output port, a second triggering signal output port, a first impulse generator and a second impulse generator; the combined test device further comprises a time delay loop; a signal is divided into two paths after being sent to the signal processing module from the signal input module; one path is directly output to the first impulse generator through the first triggering signal output port, and the other path is output to the second impulse generator from the second triggering signal output port via the time delay loop for triggering, then the time delay adjusting is performed through adjusting the circuit parameters of the time delay loop, so that the two impulse voltage generator are simultaneously triggered and ignited. By using an integrated circuit, the combined test device has the advantages of strong anti-interference performance, small influence from temperature variation, and stable output, can effectively improve the debugging time, can provide more accurate combined voltage waveform, and can produce the standard combined voltage meeting international standard.
Description
Technical field
The present invention relates to a kind of alternate combined voltage test method and device, belong to the High-Voltage Experimentation Technology field, relate in particular to two high voltage impulse voltage generator combined test devices with its adjustment method.
Background technology
Along with the development of UHV (ultra-high voltage) and extra-high voltage, electric power line pole tower size design and phase insulation distance reach to important, and main is in the switching overvoltage that produces on the line.In order to ensure the safe and reliable operation of electrical network, alternate combined voltage test is main design considerations.
The principle of work of impulse voltage generator discharge is multistage electric capacity charged in parallel, carries out discharged in series at trigger pulse of generator first order stack then, to reach the purpose that produces impacting with high pressure.If utilize the voltage that a stack is impacted that obtains of two impulse voltage generators; Can there be certain delay between two impulse voltage generators; Traditional adjustment method is the method that adds the cable of delaying time; Debugging is got up, and both inconvenience was also inaccurate, and for example application number is the by name a kind of transformer chopped wave lightning impulse test device of 200910010859.X and the invention application of method, and what this test unit and method adopted is exactly the cable of delaying time.
But, adopt the method that the time-delay cable is installed, it is more satisfactory to be applied to environment, does not have the place of larger interference signal.Because the transfer rate of signal is certain, cable is long more, and delay inequality is just big more; The environment of each testing ground is all different; Cable transmission signal lag size receives the influence of environment temperature, and temperature is high more, and it is big more to delay time; So the differentiation fully by rule of thumb of cable length, thereby can't control the synchronism of two-way trigger pip accurately and reliably.Therefore, how to suppress delay inequality to greatest extent, obtain synchronizing signal exactly, become the on-the-spot important means of high pressure combined voltage test.
Summary of the invention
The objective of the invention is: in order to solve prior art owing to adopting the time-delay cable; The shortcoming that error is big; A kind of new combined voltage debugging apparatus and method are provided, are applied to any impulse voltage generator, can regulate the timing circuit circuit parameter according to the testing ground environment and regulate the trigger pip time; With respect to prior art, have that error is little, strong anti-interference performance, receive temperature variation very little and export stable advantage.
Technical scheme of the present invention is: a kind of two impulse voltage generator combined test devices; Comprise insulating power supply, signal input module, signal processing module, the first trigger pip delivery outlet, the second trigger pip delivery outlet, first surge generator and second surge generator, it is characterized in that:
Said combined test device also comprises a timing circuit, and signal is divided into two-way after by said signal input module to signal processing module, and a route first trigger pip delivery outlet directly outputs to first surge generator; Another road is triggered to second surge generator by the second trigger pip delivery outlet behind timing circuit, through regulating the adjusting of delaying time of timing circuit circuit parameter, reaches two impulse voltage generators and triggers the igniting purpose simultaneously.
Aforesaid two impulse voltage generator combined test devices is characterized in that the first trigger pip output port number is one, and the second trigger pip output port number is one or more.
The present invention also provides a kind of two impulse voltage generator Combined Trials methods, adopts aforesaid two impulse voltage generator combined test devices, and two surge generators are carried out on-the-spot combined debugging, comprises the steps:
Whether inspection site safety measure and the wiring of impact generating means be correct, and whether inspection pulse signal cable connects reliably, and whether the inspection ground wire connects fully;
Insert power supply, examine the on-the-spot back of installing and prepare pressurization;
Set charging voltage, carry out impulse test,, adjust delay time after the step-down ground connection if test waveform does not meet standard-required; Like the requirement of test waveform conformance with standard, setting voltage carries out the standard lightning impulse test to test product.
Aforesaid two impulse voltage generator Combined Trials methods is characterized in that, the output of the second trigger pip delivery outlet is with the output time of first trigger pip delivery outlet output point as a reference.
The invention has the beneficial effects as follows: after adopting combined test device of the present invention and method, can utilize any two surge generators to produce standard association voltage, can the technical support of standard association voltage test be provided the extra-high voltage engineering.Because this device only needs on existing Equipment Foundations, to increase an adjustable electronic delay trigger board and gets final product with a small amount of wiring, cost is low, volume is little, debug advantage quickly and easily thereby have; Be integrated circuit owing to what adopt again, thereby have strong anti-interference performance, receive temperature variation very little, export stable advantage.Can effectively improve debug time and combined voltage waveform more accurately is provided, generation meets GB required standard combined voltage.
Description of drawings
Fig. 1 is the theory diagram of two high voltage impulse voltage generator combined test devices of the embodiment of the invention.
Fig. 2 is the pulse voltage waveform synoptic diagram that two high voltage impulse voltage generator combined test devices of the embodiment of the invention are united generation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further explanation.
As shown in Figure 1, be to utilize two impulse voltage generator combined test devices and method that 7500kV impulse voltage generator and 4800kV impulse voltage generator are carried out the combined impulse voltage test.
Two impulse voltage generator combined test devices that the embodiment of the invention provides comprise insulating power supply, signal input module, signal processing module, 1# trigger pip delivery outlet, 2# trigger pip delivery outlet, a timing circuit and 1# surge generator, 2# surge generator.
Referring to Fig. 1, the input of one road signal of said combined test device is divided into two-way after signal Processing, and a route 1# trigger pip delivery outlet directly outputs to the 1# surge generator and triggers igniting; Another road is triggered to the 2# surge generator by 2# trigger pip delivery outlet through timing circuit; Because between two impacts the trigger pip cable is arranged; There is certain delay; So just, reach two impulse voltage generators and trigger the igniting purpose simultaneously, meet the waveform of GB requirement with generation through regulating adjustings of delaying time of timing circuit circuit parameter.
Said timing circuit is the influence of the time-delay that causes of compensating cable and other factors effectively.Said timing circuit is designed to an adjustable electronic delay trigger board, can utilize this device at any on-the-spot standard association voltage that meets GB that produces.
1# trigger pip delivery outlet has only one, can be one but be similar to 2# trigger pip delivery outlet, also can be a plurality of.
The signal of 1# trigger pip and the output of 2# trigger pip mouth can directly carry out measured waveform relatively by oscillograph; Delay inequality between 1# trigger pip and the 2# trigger pip is determined by site environment; Like the distance between two surge generators with trigger the different of loop characteristic; If delay inequality is bigger, can not reach the requirement of synchronous discharge, then reach the purpose of regulating the time-delay size through manual adjustment timing circuit circuit parameter.Satisfying GB requires to get final product.
Adopt the test method of two impulse voltage generator combined test devices of the present invention, comprise the steps:
Whether inspection site safety measure and the wiring of impact generating means be correct, and whether inspection pulse signal cable connects reliably, and whether the inspection ground wire connects fully;
Insert power supply, examine the on-the-spot back of installing and prepare pressurization;
Set charging voltage, carry out impulse test,, adjust delay time after the step-down ground connection if test waveform does not meet standard-required; Like the requirement of test waveform conformance with standard, setting voltage carries out the standard lightning impulse test to test product.
The output of the second trigger pip delivery outlet is with the output time of first trigger pip delivery outlet output point as a reference.
As shown in Figure 2, be the pulse voltage waveform synoptic diagram that two high voltage impulse voltage generator combined test devices of the embodiment of the invention are united generation.Utilize above-mentioned debug results to carry out long wave front operation wave impact test, 40 group leader's wavefront operation wave impact test is carried out in the alternate gap of eight split conductors, 40 groups of test waveforms all satisfy the GB requirement.
Claims (4)
1. two impulse voltage generator combined test devices; Comprise insulating power supply, signal input module, signal processing module, the first trigger pip delivery outlet, the second trigger pip delivery outlet, first surge generator and second surge generator, it is characterized in that:
Said combined test device also comprises a timing circuit, and signal is divided into two-way after by said signal input module to signal processing module, and a route first trigger pip delivery outlet directly outputs to first surge generator; Another road is triggered to second surge generator by the second trigger pip delivery outlet behind timing circuit, through regulating the adjusting of delaying time of timing circuit circuit parameter, reaches two impulse voltage generators and triggers the igniting purpose simultaneously.
2. two impulse voltage generator combined test devices according to claim 1 is characterized in that the first trigger pip output port number is one, and the second trigger pip output port number is one or more.
3. one kind two impulse voltage generator Combined Trials methods adopt two impulse voltage generator combined test devices like claim 1 or 2, and two surge generators are carried out on-the-spot combined debugging, comprise the steps:
Whether inspection site safety measure and the wiring of impact generating means be correct, and whether inspection pulse signal cable connects reliably, and whether the inspection ground wire connects fully;
Insert power supply, examine the on-the-spot back of installing and prepare pressurization;
Set charging voltage, carry out impulse test,, adjust delay time after the step-down ground connection if test waveform does not meet standard-required; Like the requirement of test waveform conformance with standard, setting voltage carries out the standard lightning impulse test to test product.
4. two impulse voltage generator Combined Trials methods according to claim 1 is characterized in that, the output of the second trigger pip delivery outlet is with the output time of first trigger pip delivery outlet output point as a reference.
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| CN2011102650782A CN102419411A (en) | 2011-09-08 | 2011-09-08 | Combined test device and method of two impulse voltage generators |
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| CN2011102650782A CN102419411A (en) | 2011-09-08 | 2011-09-08 | Combined test device and method of two impulse voltage generators |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746567A (en) * | 2014-01-22 | 2014-04-23 | 国家电网公司 | Method for generating wavefront continuously adjustable high impulse voltage |
| CN105319407A (en) * | 2014-07-30 | 2016-02-10 | 中国铁道科学研究院 | Dual-loop impulse generator |
| CN107389289A (en) * | 2017-08-31 | 2017-11-24 | 成都职业技术学院 | A kind of more survey station vibration acquisition equipment synchronizers |
| CN108872824A (en) * | 2018-09-04 | 2018-11-23 | 重庆大学 | Soil electric discharge imaging device and more impulse current generator synchronization systems and method |
| CN109709425A (en) * | 2018-12-29 | 2019-05-03 | 国网冀北电力有限公司电力科学研究院 | A kind of distribution transformer bears the pilot system and method for short-circuit capacity |
| CN113009307A (en) * | 2021-02-23 | 2021-06-22 | 武汉水院电气有限责任公司 | Impulse current wave-chopping adjustable time delay device and method based on programmable logic controller |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746567A (en) * | 2014-01-22 | 2014-04-23 | 国家电网公司 | Method for generating wavefront continuously adjustable high impulse voltage |
| CN103746567B (en) * | 2014-01-22 | 2016-09-21 | 国家电网公司 | A kind of wavefront continuously adjustable impact high voltage method for generation |
| CN105319407A (en) * | 2014-07-30 | 2016-02-10 | 中国铁道科学研究院 | Dual-loop impulse generator |
| CN105319407B (en) * | 2014-07-30 | 2020-01-14 | 中国铁道科学研究院集团有限公司 | Double-loop impact generator |
| CN107389289A (en) * | 2017-08-31 | 2017-11-24 | 成都职业技术学院 | A kind of more survey station vibration acquisition equipment synchronizers |
| CN108872824A (en) * | 2018-09-04 | 2018-11-23 | 重庆大学 | Soil electric discharge imaging device and more impulse current generator synchronization systems and method |
| CN109709425A (en) * | 2018-12-29 | 2019-05-03 | 国网冀北电力有限公司电力科学研究院 | A kind of distribution transformer bears the pilot system and method for short-circuit capacity |
| CN109709425B (en) * | 2018-12-29 | 2020-05-22 | 国网冀北电力有限公司电力科学研究院 | System and method for testing short circuit bearing capacity of distribution transformer |
| CN113009307A (en) * | 2021-02-23 | 2021-06-22 | 武汉水院电气有限责任公司 | Impulse current wave-chopping adjustable time delay device and method based on programmable logic controller |
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Application publication date: 20120418 |