CN201854203U - Multi-waveform striking current generator - Google Patents
Multi-waveform striking current generator Download PDFInfo
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- CN201854203U CN201854203U CN2009202912571U CN200920291257U CN201854203U CN 201854203 U CN201854203 U CN 201854203U CN 2009202912571 U CN2009202912571 U CN 2009202912571U CN 200920291257 U CN200920291257 U CN 200920291257U CN 201854203 U CN201854203 U CN 201854203U
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Abstract
A multi-waveform striking current generator comprises a charging loop and a discharging loop. The charging loop consists of a main transformer T, a high-voltage silicon stack G1, a high-voltage silicon stack G2, a switch K, a charging protecting resistor RP, a direct-current resistance voltage divider RF and a main capacitor CZ. The discharging loop comprises a main capacitor CZ, a non-inductive resistor, a wave modulating resistor, a wave modulating inductor, a discharging gap GAP and a tubular current divider Rs. The purpose of regulating waveforms of striking current is realized by adjusting inductance of the wave regulating inductor and resistance of the wave regulating resistor in the discharging loop. The multi-waveform striking current generator can generate three different striking current waveforms of 1/5muS, 8/20muS and 4/10muS, can realize the purpose of generating the three waveforms, can save a great deal of equipment compared with equipment needed for generating standard lightning striking current waves, operational striking current waves and steep-wave striking current waves, reduces cost and occupied space of equipment, and improves utilization rate of the equipment.
Description
Technical field
The utility model patent relates to a kind of multi-waveform impulse current generator, belongs to the electric device field.
Background technology
According to GB11032 " AC system metal oxide arrester " standard-required, zinc oxide resistance sheet should be measured its residual voltage, and to tolerate waveform be 4/10 μ S impulse current ripple.According to GB11032 " AC system metal oxide arrester " standard-required, the method of measurement of residual voltage is, zinc oxide resistance sheet is applied 1/5 μ S, two kinds of standard impulse current ripples of 8/20 μ S, measure the voltage that is applied to resistor disc simultaneously, this magnitude of voltage is called the residual voltage of resistor disc.The while standard-required, it is 4/10 μ S impulse current that zinc oxide resistance sheet should stand twice waveform, resistor disc should not damage.Therefore needing to produce waveform is 1/5 μ S, 8/20 μ S and three kinds of standard impulse current ripples of 4/10 μ S.In traditional method, a kind of impulse current ripple of waveform needs to be produced by an independent impulse current wave producer separately, and such impulse current generator includes live part and discharge portion.The rest may be inferred, needs 3 cover impulse current generators could produce down 1/5 μ S, 8/20 μ S and three kinds of impulse current ripples of 4/10 μ S respectively.The shortcoming of this method is that equipment is too much, and floor space is big, and utilization rate of equipment and installations is low, and cost is too high.
Summary of the invention
Given this, the purpose of this utility model is to provide a kind of multi-waveform impulse current generator, this generator adopts above 3 cover generator live parts is adopted same charge circuit, produces three kinds of different impulse current ripples of 1/5 μ S, 8/20 μ S and 4/10 μ S by the method that changes wave regulating resistor and harmonic inductance numerical values recited during discharge.So both save equipment cost, reduced occupation area of equipment, and improved usage ratio of equipment, reached the purpose of three kinds of impulse current ripples of a set of equipment generation.
The technical solution of the utility model is: multi-waveform impulse current generator, comprise a charge circuit and a discharge loop,
Charge circuit is made up of main transformer T, high voltage silicon stack G1, high voltage silicon stack G2, K switch, charge protection resistance R P, D.C. resistance voltage divider RF, main capacitance CZ, wherein main capacitance CZ is composed in parallel by 4 capacitor C 1, C2, C3, C4, annexation between the each several part is: the output termination high voltage silicon stack D1 of main transformer T and the input of high voltage silicon stack D2, the output termination K switch of high voltage silicon stack D1 and charge protection resistance R P, D.C. resistance voltage divider RF and main capacitance CZ is electric is connected in parallel is used for measuring the voltage at main capacitance CZ two ends; The low-pressure end of main transformer T, the output of high voltage silicon stack D1, the other end of K switch, the low-pressure end of D.C. resistance voltage divider RF, the low-pressure end of main capacitance CZ is ground connection all;
Discharge loop is electrically connected by main capacitance CZ, noninductive resistance, wave regulating resistor, harmonic inductance, discharging gap GAP, tubular type shunt Rs to be formed, wherein main capacitance CZ is composed in parallel by 4 capacitor C 1, C2, C3, C4, and noninductive resistance is composed in parallel by 4 resistance R 1, R2, R3, R4; It is characterized in that: constituting of wave regulating resistor and harmonic inductance is one of following:
When the generation waveform was the impulse current ripple of 1/5 μ S, wave regulating resistor was made up of wave regulating resistor R820 and 2 wave regulating resistor R15, and the harmonic inductance is a harmonic inductance L 820;
When the generation waveform was the impulse current ripple of 4/10 μ S, wave regulating resistor was wave regulating resistor R820, and the harmonic inductance is made up of harmonic inductance L 820 and harmonic inductance L 410;
When the generation waveform was the impulse current ripple of 8/20 μ S, wave regulating resistor was wave regulating resistor R820; The harmonic inductance is a harmonic inductance L 820.
The beneficial effects of the utility model are:
(1) R1, R2, R3, a R44 wave regulating resistor all adopt noninductive winding, have reduced loop inductance, when producing 1/5 μ S impulse current ripple, can avoid since the subsidiary inductance of these 4 resistance to the influence of waveform.
(2) the ball discharge crack in the discharge loop adopts 2 graphite electrodes to be made, and has replaced traditional metal discharge ball crack, can avoid like this because long-time the use caused the metal burn, the stability of influence discharge.Adopt graphic discharge ball crack then can avoid such shortcoming.
(3) CZ of main capacitance (simultaneously shared in charge circuit and the discharge loop) is composed in parallel by 4 electric capacity, select for use 4 electric capacity can avoid adopting too much capacitor to cause the waste of device resource, be less than 4 and can not satisfy test requirements document again, therefore select 4 capacitor parallel connections not only to save device resource but also can satisfy test requirements document.
(4) can to produce the wave head time be 8 microseconds to the utility model, the wave rear time is the impulse current ripple (being called the standard lightning impulse current wave) of 20 microseconds, can also produce the wave head time is 4 microseconds, the wave rear time is the impulse current ripple (being called the switching impulse current ripple) of 10 microseconds, and to produce the wave head time be 1 microsecond, the wave rear time is the impulse current ripple (being called the steep impulse current ripple) of 5 microseconds, can realize that 1 equipment produces 3 kinds of waveforms, compare and produce the standard lightning impulse current wave, the equipment that three kinds of impulse current ripples of switching impulse current ripple and steep impulse current ripple need, can save equipment in a large number, reduce cost, usage ratio of equipment is improved in the occupation of land space of minimizing equipment.
Description of drawings
Accompanying drawing 1 is a multi-waveform impulse current generator charge circuit schematic diagram.
Accompanying drawing 31/5 μ S impulse current discharge loop schematic diagram.
Accompanying drawing 44/10 μ S impulse current discharge loop schematic diagram.
Accompanying drawing 58/20 μ S impulse current discharge loop schematic diagram.
Embodiment
The explanation of mark: T in the accompanying drawing: main transformer; G1: high voltage silicon stack; G2: high voltage silicon stack; K: switch; RP: charge protection resistance; RF: D.C. resistance voltage divider; C1～C4: electric capacity; L820: harmonic inductance; L410: harmonic inductance; R820: wave regulating resistor; R1～R4: noninductive resistance; GAP: discharging gap; R15: wave regulating resistor; Rs: tubular type shunt.
As shown in Figure 1, the utility model embodiment is a multi-waveform impulse current generator, and it comprises a charge circuit and a discharge loop.Charge circuit is by main transformer T, high voltage silicon stack G1, high voltage silicon stack G2, K switch, charge protection resistance
, D.C. resistance voltage divider RF, main capacitance CZ be electrically connected composition; Wherein main capacitance CZ by 4 capacitor C 1, C2, C3, C4 is electric composes in parallel.
Discharge loop is electrically connected and is formed by main capacitance CZ, noninductive resistance, wave regulating resistor, harmonic inductance, discharging gap GAP, tubular type shunt Rs; Wherein main capacitance CZ by 4 capacitor C 1, C2, C3, C4 is electric composes in parallel; Wave regulating resistor is electrically connected by wave regulating resistor R820 and 2 wave regulating resistor R15 respectively according to the waveform needs to be formed; The harmonic inductance is electrically connected by harmonic inductance L 820 and harmonic inductance L 410 respectively according to the waveform needs to be formed; Noninductive resistance by 4 resistance R 1, R2, R3, R4 is electric composes in parallel.
In the charge circuit, the output of main transformer T (high-pressure side) connects the input of high voltage silicon stack D1 and high voltage silicon stack D2, the output termination K switch of high voltage silicon stack D1 and charge protection resistance R P, D.C. resistance voltage divider RF and main capacitance CZ is electric is connected in parallel is used for measuring the voltage at main capacitance CZ two ends; The low-pressure end of main transformer T, the output of high voltage silicon stack D1, the other end of K switch, the low-pressure end of D.C. resistance voltage divider RF, the low-pressure end of main capacitance CZ is ground connection all.
In the discharge loop, the waveform requirement according to different has different connected modes, and the specific implementation method will specify at the course of work one joint.
This cover surge generator adopts the metallization pulse capacitor of 4 150kV/1 μ F as main capacitance.That this capacitor has is in light weight, volume is little, inductance is little, high energy than, do not have characteristics such as oil is fire-retardant, so the entire equipment compact conformation has reduced occupation area of equipment greatly.
The course of work of the utility model embodiment is: multi-waveform impulse current generator comprises a charge circuit and a discharge loop.Charge circuit is made up of main transformer T, high voltage silicon stack G1, high voltage silicon stack G2, K switch, charge protection resistance R P, D.C. resistance voltage divider RF, main capacitance CZ; Wherein main capacitance CZ is composed in parallel by 4 capacitor C 1, C2, C3, C4; After K switch is closed; the output voltage of main transformer T is direct current by the voltage multiplying rectifier charge circuit that rectification high voltage silicon stack G1 and rectification high voltage silicon stack G2 form with AC rectification; these direct currents will charge to main capacitance CZ; resistance R P is a charge protection resistance, avoids because charging is too fast, and CZ causes damage to main capacitance; D.C. resistance voltage divider RF and main capacitance CZ are connected in parallel; effect is the voltage of monitoring on the main capacitance, be charged to required voltage after, K switch disconnects.When discharge, when needs generation waveform is the impulse current ripple of 1/5 μ S, connected mode according to accompanying drawing 3 connects, harmonic inductance L 410 is broken from the loop, discharging gap GAP triggers by igniting, capacitor C1, C2, C3, C4 discharge simultaneously, and producing waveform is the impulse current ripple of 1/5 μ S; When needs generation waveform is the impulse current ripple of 4/10 μ S, connected mode according to accompanying drawing 4 connects, and 2 wave regulating resistor R15 all need to break from the loop, and discharging gap GAP triggers by igniting, capacitor C1, C2, C3, C4 discharge simultaneously, and producing waveform is the impulse current ripple of 4/10 μ S; When needs generation waveform is the impulse current ripple of 8/20 μ S, connected mode according to accompanying drawing 5 connects, 2 wave regulating resistor R15 all need to break from the loop, harmonic inductance L 410 also needs to break from the loop simultaneously, discharging gap GAP triggers by igniting, capacitor C1, C2, C3, C4 discharge simultaneously, and producing waveform is the impulse current ripple of 8/20 μ S.Tubular type shunt Rs is used to measure discharge loop current waveform parameter (time and amplitude).
Claims (1)
1. multi-waveform impulse current generator comprises a charge circuit and a discharge loop,
Charge circuit is made up of main transformer T, high voltage silicon stack G1, high voltage silicon stack G2, K switch, charge protection resistance R P, D.C. resistance voltage divider RF, main capacitance CZ, wherein main capacitance CZ is composed in parallel by 4 capacitor C 1, C2, C3, C4, annexation between the each several part is: the output termination high voltage silicon stack D1 of main transformer T and the input of high voltage silicon stack D2, the output termination K switch of high voltage silicon stack D1 and charge protection resistance R P, D.C. resistance voltage divider RF and main capacitance CZ is electric is connected in parallel is used for measuring the voltage at main capacitance CZ two ends; The low-pressure end of main transformer T, the output of high voltage silicon stack D1, the other end of K switch, the low-pressure end of D.C. resistance voltage divider RF, the low-pressure end of main capacitance CZ is ground connection all;
Discharge loop is electrically connected by main capacitance CZ, noninductive resistance, wave regulating resistor, harmonic inductance, discharging gap GAP, tubular type shunt Rs to be formed, wherein main capacitance CZ is composed in parallel by 4 capacitor C 1, C2, C3, C4, and noninductive resistance is composed in parallel by 4 resistance R 1, R2, R3, R4; It is characterized in that: constituting of wave regulating resistor and harmonic inductance is one of following:
When the generation waveform was the impulse current ripple of 1/5 μ S, wave regulating resistor was made up of wave regulating resistor R820 and 2 wave regulating resistor R15, and the harmonic inductance is a harmonic inductance L 820;
When the generation waveform was the impulse current ripple of 4/10 μ S, wave regulating resistor was wave regulating resistor R820, and the harmonic inductance is made up of harmonic inductance L 820 and harmonic inductance L 410;
When the generation waveform was the impulse current ripple of 8/20 μ S, wave regulating resistor was wave regulating resistor R820; The harmonic inductance is a harmonic inductance L 820.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202912571U CN201854203U (en) | 2009-12-08 | 2009-12-08 | Multi-waveform striking current generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202912571U CN201854203U (en) | 2009-12-08 | 2009-12-08 | Multi-waveform striking current generator |
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| CN201854203U true CN201854203U (en) | 2011-06-01 |
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| CN2009202912571U Expired - Lifetime CN201854203U (en) | 2009-12-08 | 2009-12-08 | Multi-waveform striking current generator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048501A (en) * | 2012-12-19 | 2013-04-17 | 苏州泰思特电子科技有限公司 | Impact current generating device |
| CN103675375A (en) * | 2013-12-31 | 2014-03-26 | 上海交通大学 | Inductive discharge high-gradient impact current generator |
| CN104764910A (en) * | 2012-07-27 | 2015-07-08 | 苏州泰思特电子科技有限公司 | Lightning transient impulse current generator |
| CN104198780B (en) * | 2012-07-27 | 2017-02-08 | 苏州泰思特电子科技有限公司 | High-voltage large-current impulse current generation device |
-
2009
- 2009-12-08 CN CN2009202912571U patent/CN201854203U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764910A (en) * | 2012-07-27 | 2015-07-08 | 苏州泰思特电子科技有限公司 | Lightning transient impulse current generator |
| CN104198780B (en) * | 2012-07-27 | 2017-02-08 | 苏州泰思特电子科技有限公司 | High-voltage large-current impulse current generation device |
| CN104764910B (en) * | 2012-07-27 | 2018-03-20 | 苏州泰思特电子科技有限公司 | Be struck by lightning great instantaneous current generator |
| CN103048501A (en) * | 2012-12-19 | 2013-04-17 | 苏州泰思特电子科技有限公司 | Impact current generating device |
| CN103675375A (en) * | 2013-12-31 | 2014-03-26 | 上海交通大学 | Inductive discharge high-gradient impact current generator |
| CN103675375B (en) * | 2013-12-31 | 2016-08-24 | 上海交通大学 | Inductive discharge high-gradient impact current generator |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110601 Effective date of abandoning: 20091208 |