CN201412256Y - First-step sphere gap symmetrical ignition device of impulse voltage generator - Google Patents
First-step sphere gap symmetrical ignition device of impulse voltage generator Download PDFInfo
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- CN201412256Y CN201412256Y CN2009201071009U CN200920107100U CN201412256Y CN 201412256 Y CN201412256 Y CN 201412256Y CN 2009201071009 U CN2009201071009 U CN 2009201071009U CN 200920107100 U CN200920107100 U CN 200920107100U CN 201412256 Y CN201412256 Y CN 201412256Y
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- impulse voltage
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Abstract
The utility model particularly relates to a first-step sphere gap symmetrical ignition device of an impulse voltage generator. The device comprises an epoxy tube, at least one group of electrode sphere gaps arranged inside the epoxy tube, and a pulse amplifier placed on the center line of a base of the epoxy tube, wherein the electrode sphere gaps are a pair of ignition bulbs which are symmetrically placed; a blocking coupling capacitor, a damping resistance and a high-voltage ignition wire are connected with the two ignition bulbs respectively; and all the components are tightly integrated with an impulse voltage generator body. The utility model has the advantages that the structure is compact; the scheme is simple and easy to implement; and the device is applicable to the first-step sphere gap ignition of an impulse voltage generator with symmetrical bilateral charging, so as to greatly improve the ignition success rate of the impulse voltage generator with symmetrical bilateral charging, and solve the trigger ignition difficulty of such impulse voltage generators under severe conditions such as high step voltage, altitude or the like.
Description
Technical field
The utility model relates to the ignition mechanism of impulse voltage generator, particularly relates to a kind of first order ball crack symmetry ignition mechanism of impulse voltage generator, is applied in electric power system and the high voltage installation manufacturing enterprise.
Background technique
The high speed development of China's economic promotes the development of China Power, also enlarged simultaneously the demand of China Power, be the development of adaptation electric power and the requirement of national energy-saving and emission-reduction, China's grid power carries the grade of voltage to need progressively to improve, and electric pressure is developed to extra-high voltage to ultrahigh pressure by high pressure again at present.Along with the national grid electric pressure improves, power grid security also should be brought up to a new height, therefore detects high-voltage fence and high voltage installation operation formal approaches and comprises that the equipment of the detection test of impulse voltage generator requires just higher.
According to the requirement of IEC standard, the high voltage product that moves on the electrical network all to carry out high-potting, mainly comprise AC and DC pressure test, impulse voltage test and partial discharge test or the like.Insulating property when impulse voltage generator is mainly studied test specimen and stood various lightning surges or switching overvoltage.The working principle of impulse voltage generator is: capacitor is isolated charged in parallel by the ball crack before this, and the ball crack is triggered the igniting discharged in series and formed pulse high-voltage then, reaches required various waveforms by adjustment wave head, wave rear resistance.
Current impulse voltage generator charging modes has monolateral charging, the charging of monolateral multiplication of voltage, bilateral asymmetric charging and bilateral symmetry charging etc.
Wherein, because the bilateral symmetry charging can be with the step voltage U of impulse voltage generator charging, be divided into+(1/2) U and-(1/2) U, thereby electrode current potential over the ground in the reduction charging process makes the corona that causes when step voltage is higher be greatly improved, and the impulse voltage generator compact structure of this structure, beautiful shape, advantages such as the discharge loop inductance is little, therefore in recent years, the impulse voltage generator of big capacity, voltage levels all adopts the form of this bilateral symmetry formula charging basically.
And monolateral triggering igniting is all adopted in the impulse voltage generator first order ball crack of bilateral symmetry charging at present, as illustrated in fig. 1 and 2, in the body first order insulating epoxy tube 1 ' of impulse voltage generator an ignition pill 2 ' and a photosphere 3 ' are set, constituting three electrode gap ignition pill cracks, is ball discharge crack 4 ' between ignition pill 2 ' and the photosphere 3 '.One side of insulating epoxy tube base has a pulse amplifier 7 '.First order ball crack has only one three an electrode gap ignition pill and a corresponding cover every straight coupling capacitance 5 ', damping resistor 6 ' and high-pressure ignition wire 8 '.Such structure is when the level charging voltage is not high, and it still is all well and good triggering ignition success rate.But when level charging voltage when higher, particularly when the level charging voltage when 250kV is above, trigger igniting unusual difficulty, especially when generator is installed in high height above sea level place, trigger light a fire very difficult.
The model utility content
In order to overcome above deficiency of the prior art, the utility model provides a kind of first order ball crack symmetry ignition mechanism of impulse voltage generator, utilize the characteristics of the impulse voltage generator symmetrical configuration of bilateral symmetry charging, improved the ignition success rate of the impulse voltage generator of bilateral symmetry charging, solved this type of impulse voltage generator at the step voltage height, or the igniting of the triggering under mal-conditions such as a high height above sea level difficult problem.
The utility model is by the following technical solutions:
A kind of first order ball crack symmetry ignition mechanism of impulse voltage generator comprises epoxy cylinder, places at least one group ball electrode crack in the described epoxy cylinder, places the pulse amplifier on the epoxy cylinder base center line.
Wherein the ball electrode crack is the ignition pill that a pair of symmetry is placed, and places two ignition pills in one group of ball electrode crack of epoxy cylinder bottom respectively to be connected with every straight coupling capacitance, damping resistor and high-pressure ignition wire respectively.
Pulse amplifier comprises: a rectifier bridge (D), and an output terminal of rectifier bridge (D) is got back to another output terminal of rectifier bridge (D) by current-limiting resistance (R1), the pulsed capacitance (C1) of series connection, the elementary winding of pulse transformer (T1); At the pulsed capacitance (C1) and the two ends of pulse transformer (T1) of series connection and be connected to a controllable silicon (V1); The secondary windings two ends of pulse transformer (T1) are connected to described two ignition pills respectively.
The utility model compared with prior art has the following advantages:
1) first order ball crack symmetric type ignition schemes of the impulse voltage generator of the utility model bilateral symmetry charging, increase under the very little prerequisite in investment, for providing of impulse voltage generator the triggering ignition mechanism used of a set of equipment, when wherein a cover breaks down, do not influence the use of equipment.
2) first order ball crack symmetric type ignition schemes of the impulse voltage generator of the utility model bilateral symmetry charging, the firing pulse amplitude that superposes between the three electrode gap ignition pill cracks is brought up to 2 δ u by δ u, improved the ignition success rate of impulse voltage generator greatly, effectively solved this type of impulse voltage generator at the step voltage height, or the igniting of the triggering under mal-conditions such as a high height above sea level difficult problem.
Description of drawings
Fig. 1 is the impulse voltage generator first order ball crack monolateral triggering ignition mechanism plan view schematic representation that traditional bilateral symmetry is charged;
Fig. 2 is the impulse voltage generator first order ball crack monolateral triggering ignition mechanism plan view schematic representation that traditional bilateral symmetry is charged;
Fig. 3 the utility model impulse voltage generator first order ball crack symmetry ignition mechanism plan view schematic representation;
Fig. 4 the utility model impulse voltage generator first order ball crack symmetry ignition mechanism plan view schematic representation;
Fig. 5 the utility model firing pulse amplifier electrical principle schematic representation.
Embodiment
The bilateral symmetry charging can be with the step voltage U of impulse voltage generator charging, be divided into+(1/2) U and-(1/2) U, the ignition pill electrode current potential over the ground on the left side is+(1/2) U, and the ignition pill electrode current potential over the ground on the right is-(1/2) U, and the voltage between two ball electrodes is a level charging voltage U.Shown in Fig. 3 and 4, change the photosphere 3 of the body first order into ignition pill 2, constitute symmetric type three electrode gap ignition pill cracks, the ignition pill 2 in the electrode gap ignition pill crack of symmetry respectively increases by a cover every straight coupling capacitance 5, damping resistor 6 and high-pressure ignition wire 8.
In Fig. 5, the direct current of being exported by rectifier bridge D charges through the elementary winding paired pulses capacitor C 1 of current-limiting resistance R1 and pulse transformer T1.Pulse transformer T1 increase by one with the identical secondary windings of the secondary windings number of turn originally.Asterisk indicating impulse transformer T1 end of the same name.When needs are lighted a fire triggering to generator, control system by generator is sent trigger signal, gate pole to controllable silicon V1, the V1 conducting, pulsed capacitance C1 is by the elementary winding discharge of V1 and pulse transformer T1, two secondary windings A ends of pulse transformer T1 produce the firing pulse of a positive polarity, and the B end produces the firing pulse of a negative polarity.A rectifies the firing pulse of polarity, receives among the figure two every straight coupling capacitance, damping resistor and high-pressure ignition wire, current potential over the ground is+(1/2) U ignition pill electrode on.The firing pulse of B end negative polarity is received among the figure two every straight coupling capacitance, damping resistor and high-pressure ignition wire, current potential over the ground is-(1/2) U ignition pill electrode on.Thereby realize the bilateral symmetry formula igniting of ball crack.
Claims (4)
1, symmetry ignition mechanism in a kind of first order ball crack of impulse voltage generator is characterized in that, comprises epoxy cylinder, places at least one group ball electrode crack in the described epoxy cylinder, places the pulse amplifier on the epoxy cylinder base center line.
2, symmetry ignition mechanism in the first order ball crack of impulse voltage generator according to claim 1 is characterized in that, described ball electrode crack is the ignition pill that a pair of symmetry is placed.
3, the first order ball crack of impulse voltage generator according to claim 2 symmetry ignition mechanism, it is characterized in that, place two ignition pills in one group of ball electrode crack of epoxy cylinder bottom respectively to be connected with every straight coupling capacitance, damping resistor and high-pressure ignition wire respectively.
4, according to the symmetrical ignition mechanism in the first order ball crack of each described impulse voltage generator in the claim 1 to 3, it is characterized in that, described pulse amplifier comprises: a rectifier bridge (D), and an output terminal of described rectifier bridge (D) is got back to another output terminal of rectifier bridge (D) by current-limiting resistance (R1), the pulsed capacitance (C1) of series connection, the elementary winding of pulse transformer (T1); At the pulsed capacitance (C1) and the two ends of pulse transformer (T1) of series connection and be connected to a controllable silicon (V1); The secondary windings two ends of pulse transformer (T1) are connected to described two ignition pills respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201071009U CN201412256Y (en) | 2009-05-26 | 2009-05-26 | First-step sphere gap symmetrical ignition device of impulse voltage generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201071009U CN201412256Y (en) | 2009-05-26 | 2009-05-26 | First-step sphere gap symmetrical ignition device of impulse voltage generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412256Y true CN201412256Y (en) | 2010-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201071009U Expired - Lifetime CN201412256Y (en) | 2009-05-26 | 2009-05-26 | First-step sphere gap symmetrical ignition device of impulse voltage generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN201412256Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743979A (en) * | 2014-01-07 | 2014-04-23 | 深圳供电局有限公司 | Impulse-current multifunctional ignition device |
| CN104796124A (en) * | 2015-04-17 | 2015-07-22 | 国家电网公司 | Closed type small-gap multi-electrode gas switch device and method |
| CN105676078A (en) * | 2014-11-20 | 2016-06-15 | 江苏启源雷宇电气科技有限公司 | Rapidly-installed 4000kV outdoor impulse voltage generator applied to high altitude |
| CN106571582A (en) * | 2016-10-20 | 2017-04-19 | 中国电力科学研究院 | Sphere gap spark switch triggering device, sphere gap spark switch, and control method |
| CN106771418A (en) * | 2015-11-19 | 2017-05-31 | 中国电力科学研究院 | A kind of many ball electrode ignition devices of novel closed-type |
-
2009
- 2009-05-26 CN CN2009201071009U patent/CN201412256Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743979A (en) * | 2014-01-07 | 2014-04-23 | 深圳供电局有限公司 | Impulse-current multifunctional ignition device |
| CN103743979B (en) * | 2014-01-07 | 2016-05-04 | 深圳供电局有限公司 | A kind of multifunction ignition device of dash current |
| CN105676078A (en) * | 2014-11-20 | 2016-06-15 | 江苏启源雷宇电气科技有限公司 | Rapidly-installed 4000kV outdoor impulse voltage generator applied to high altitude |
| CN104796124A (en) * | 2015-04-17 | 2015-07-22 | 国家电网公司 | Closed type small-gap multi-electrode gas switch device and method |
| CN104796124B (en) * | 2015-04-17 | 2017-11-21 | 国家电网公司 | Closed small―gap suture multi-electrode gas switch device and method |
| CN106771418A (en) * | 2015-11-19 | 2017-05-31 | 中国电力科学研究院 | A kind of many ball electrode ignition devices of novel closed-type |
| CN106571582A (en) * | 2016-10-20 | 2017-04-19 | 中国电力科学研究院 | Sphere gap spark switch triggering device, sphere gap spark switch, and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100224 |
|
| CX01 | Expiry of patent term |