CN109004509A - A kind of high-pressure multi-stage series gap switch - Google Patents
A kind of high-pressure multi-stage series gap switch Download PDFInfo
- Publication number
- CN109004509A CN109004509A CN201810814559.6A CN201810814559A CN109004509A CN 109004509 A CN109004509 A CN 109004509A CN 201810814559 A CN201810814559 A CN 201810814559A CN 109004509 A CN109004509 A CN 109004509A
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- China
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- switch
- voltage
- connecting node
- stage series
- series connection
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T7/00—Rotary spark gaps, i.e. devices having one or more rotating electrodes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a kind of high-pressure multi-stage series gap switches, including high-voltage power supply, low pressure source, control switch, trigger, first divider resistance, first voltage-dividing capacitor and several two-stage series connection spark gap switches, wherein, each two-stage series connection spark gap switch includes the first gap, two-electrode gas switch, pulse transformer, second voltage-dividing capacitor, second divider resistance, high-voltage capacitor, bleeder resistance, first connecting node, second connecting node, third connecting node and the 4th connecting node, the gap switch can carry out reliable triggering and conducting under low service factor.
Description
Technical field
The invention belongs to power switchgear fields, are related to a kind of high-pressure multi-stage series gap switch.
Background technique
Spark gap switch because its structure is simple, work quick and precisely with good economy performance due to be widely used in electric system
It is used as main discharge to switch as in overvoltage protecting device or pulse discharge circuit.To prevent spark gap switch because complicated severe
Operating condition and misplace electricity, the service factor in gap is generally not more than 60%, and (service factor is defined as switch operating voltage and its
The percentage of self-breakdown voltage).Particularly, it is born to avoid spark gap switch from issuing in bad weathers such as rain, snow, sandstorms
It dodges, while remaining to safe and stable, reliability service under the complex working conditions such as close, the strong filthy and condensation of strong salt, need to further decrease
The service factor of spark gap switch, i.e. the overall work coefficient of gap switch are even needed lower than 30%.
Common gas switch triggering technique (mainly including trigatron triggering and field distortion triggering), switch is reliable
Service factor is generally 70% or more, it is difficult to directly be transplanted and be used for high voltage, long gap spark switch in low service factor
Under reliable triggering.
Existing high tension spark gap switch, is typically designed as plural serial stage structure, empty by being shorted the first order or part
Gas gap makes system voltage be applied to residual gap, realizes triggering, conducting of the spark gap switch under overvoltage effect.So
And the overvoltage obtained by shorted section gap is typically up to only 2 times or so of its normal working voltage, far from satisfaction
Application demand under harsh, complicated bad working environments.
Therefore, studying reliable triggering technique of the new spark gap of one kind under low service factor has highly important meaning
Justice.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of high-pressure multi-stage series gap is provided
Switch, the gap switch can carry out reliable triggering and conducting under low service factor.
In order to achieve the above objectives, high-pressure multi-stage series gap of the present invention switch include high-voltage power supply, low pressure source,
Control switch, trigger, the first divider resistance, the first voltage-dividing capacitor and several two-stage series connection spark gap switches, wherein each
Two-stage series connection spark gap switch include the first gap, two-electrode gas switch, pulse transformer, the second voltage-dividing capacitor,
Second divider resistance, high-voltage capacitor, bleeder resistance, the first connecting node, the second connecting node, third connecting node and the 4th
Connecting node, wherein the one end in the first gap is connected with the first connecting node, and third connecting node is another with the first gap
The other end, one end of bleeder resistance and the cathode of high-voltage capacitor that end, two-electrode gas switch are connected, high-voltage capacitor
Anode is connected with one end of pulse transformer primary side winding, the other end of pulse transformer primary side winding and bleeder resistance it is another
The other end of one end and two-electrode gas switch is connected, the second connecting node and the anode of the second voltage-dividing capacitor and second point
One end of piezoresistance is connected, the other end of the cathode of the second voltage-dividing capacitor and the second divider resistance and pulse transformer pair side
One end of winding is connected, and the other end of pulse transformer vice-side winding is connected with the 4th connecting node；
The first connecting node and the second connecting node in first two-stage series connection spark gap switch are connected with high-voltage power supply
It connects, in the third connecting node in previous two-stage series connection spark gap switch and the latter two-stage series connection spark gap switch
First connecting node be connected, the 4th connecting node in previous two-stage series connection spark gap switch and the latter two-stage
The second connecting node in series gap switch is connected, and the third in the last one two-stage series connection spark gap switch connects
It connects node to be connected with one end of control switch, the other end of low pressure source and control switch, one end of the first divider resistance and
The cathode of one voltage-dividing capacitor is connected, the 4th connecting node in the last one two-stage series connection spark gap switch with first point
The anode of the other end of piezoresistance and the first voltage-dividing capacitor is connected, and trigger is connected with the control terminal of control switch.
Control switch is high-voltage circuitbreaker.
Control switch triggers gas spark switch, Triggered Vacuum Switch, trigatron for plasma jet and triggers and open
It closes, field distortion trigger switch or high-voltage semi-conductor switch.
The invention has the following advantages:
High-pressure multi-stage series gap of the present invention switch is when specific operation, using the sides at different levels triggered respectively
Formula is triggered, in triggering, in the voltage of first order voltage-dividing capacitor, the voltage and pulse transforming of second level voltage-dividing capacitor
The first gap triggering and conducting is realized under the collective effect of the high-voltage pulse of device pair side output, so that gap switch can be low
Reliable triggering and conducting is carried out under service factor, then and so on, complete the touching of entire high-pressure multi-stage series gap switch
Hair conducting, structure is simple, easy to operate.
Detailed description of the invention
Fig. 1 is the schematic diagram of two-stage series connection spark gap switch in the present invention；
Fig. 2 is structural schematic diagram of the invention.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
As shown in Figures 1 and 2, high-pressure multi-stage series gap switch of the present invention includes high-voltage power supply HV, low pressure
Source LV, control switch G1, trigger, the first divider resistance R1, the first voltage-dividing capacitor C1 and several two-stage series connection spark gaps
Switch, wherein each two-stage series connection spark gap switch includes the first clearance G 2, two-electrode gas switch G3, pulse transformer
T, the second voltage-dividing capacitor C2, the second divider resistance R2, high-voltage capacitor C3, bleeder resistance R3, the first connecting node, second connect
Connecing node, third connecting node and the 4th connecting node, wherein one end of the first clearance G 2 is connected with the first connecting node,
Third connecting node and the other end of the first clearance G 2, the other end of two-electrode gas switch G3, bleeder resistance R3 one end and
The cathode of high-voltage capacitor C3 is connected, and the anode of high-voltage capacitor C3 is connected with one end of pulse transformer T primary side winding,
The other end of pulse transformer T primary side winding is connected with the other end of the other end of bleeder resistance R3 and two-electrode gas switch G3
It connects, the second connecting node is connected with one end of the anode of the second voltage-dividing capacitor C2 and the second divider resistance R2, the second partial pressure
The other end of the cathode of capacitor C2 and the second divider resistance R2 are connected with one end of pulse transformer T vice-side winding, pulse
The other end of transformer T vice-side winding is connected with the 4th connecting node；
The first connecting node and the second connecting node and high-voltage power supply HV phase in first two-stage series connection spark gap switch
It connects, third connecting node and the latter two-stage series connection spark gap switch in previous two-stage series connection spark gap switch
In first connecting node be connected, the 4th connecting node in previous two-stage series connection spark gap switch and the latter two
The second connecting node in grade series gap switch is connected, the third in the last one two-stage series connection spark gap switch
Connecting node is connected with one end of control switch G1, the other end, the first divider resistance R1 of low pressure source LV and control switch G1
One end and the cathode of the first voltage-dividing capacitor C1 be connected, the 4th connection in the last one two-stage series connection spark gap switch
Node is connected with the anode of the other end of the first divider resistance R1 and the first voltage-dividing capacitor C1, trigger and control switch G1
Control terminal be connected.
Control switch G1 be high-voltage circuitbreaker, plasma jet trigger gas spark switch, Triggered Vacuum Switch,
Trigatron trigger switch, field distortion trigger switch or high-voltage semi-conductor switch.
Specific work process of the invention are as follows:
Trigger sends trigger command and control switch G1 is connected, and the first voltage-dividing capacitor C1 is to control switch G1 immediately
Electric discharge, in control switch G1 discharge process, the first voltage-dividing capacitor C1 simultaneously charges to high-voltage capacitor C3, works as high pressure
When capacitor C3 charges to setting voltage value, two-electrode gas switch G3 self discharge immediately, and form conducting；Two-electrode gas is opened
After closing G3 conducting, the primary side of high-voltage capacitor C3 pulse transformer T is discharged, and high in the generation one of the secondary side of pulse transformer T
Amplitude pulse high pressure；In the high voltage pulse of pulse transformer T pair side output, the voltage of the first voltage-dividing capacitor C1 and the second partial pressure
Under the collective effect of the voltage of capacitor C2, realizes the conducting of the first clearance G 2, complete the triggering of two-stage series connection spark gap switch.
The triggering mode of other two-stage series connection spark gap switches is identical as the triggering mode of first two-stage series connection spark gap switch,
To realize the triggering of high-pressure multi-stage series gap switch.
The above described is only a preferred embodiment of the present invention, limitation in any form not is done to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the method and technique content using the disclosure above make it is a little more
Equivalent embodiment that is dynamic or being modified to equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is according to the present invention
Technical spirit any simple modification, equivalent change and modification made to the above embodiment, still fall within technical solution of the present invention
In range.
Claims (3)
1. a kind of high-pressure multi-stage series gap switch, which is characterized in that including high-voltage power supply (HV), low pressure source (LV), control
Switch (G1), trigger, the first divider resistance (R1), the first voltage-dividing capacitor (C1) and several two-stage series connection spark gaps are opened
It closes, wherein each two-stage series connection spark gap switch includes the first gap (G2), two-electrode gas switch (G3), pulse transforming
Device (T), the second voltage-dividing capacitor (C2), the second divider resistance (R2), high-voltage capacitor (C3), bleeder resistance (R3), first connect
Connect node, the second connecting node, third connecting node and the 4th connecting node, wherein the one end and first of the first gap (G2)
Connecting node is connected, the other end of third connecting node and the first gap (G2), two-electrode gas switch (G3) the other end,
One end of bleeder resistance (R3) and the cathode of high-voltage capacitor (C3) are connected, high-voltage capacitor C3) anode and pulse transforming
One end of device (T) primary side winding is connected, the other end of pulse transformer (T) primary side winding and the other end of bleeder resistance (R3)
And the other end of two-electrode gas switch (G3) is connected, the anode of the second connecting node and the second voltage-dividing capacitor (C2) and the
One end of two divider resistances (R2) is connected, the cathode of the second voltage-dividing capacitor (C2) and the other end of the second divider resistance (R2)
It is connected with one end of pulse transformer (T) vice-side winding, the other end of pulse transformer (T) vice-side winding connect section with the 4th
Point is connected；
The first connecting node and the second connecting node in first two-stage series connection spark gap switch are connected with high-voltage power supply (HV)
It connects, in the third connecting node in previous two-stage series connection spark gap switch and the latter two-stage series connection spark gap switch
First connecting node be connected, the 4th connecting node in previous two-stage series connection spark gap switch and the latter two-stage
The second connecting node in series gap switch is connected, and the third in the last one two-stage series connection spark gap switch connects
It connects node to be connected with one end of control switch (G1), the other end of low pressure source (LV) and control switch (G1), the first partial pressure electricity
The cathode of one end and the first voltage-dividing capacitor (C1) for hindering (R1) is connected, in the last one two-stage series connection spark gap switch
4th connecting node is connected with the anode of the other end of the first divider resistance (R1) and the first voltage-dividing capacitor (C1), trigger
It is connected with the control terminal of control switch (G1).
2. high-pressure multi-stage series gap switch according to claim 1, which is characterized in that control switch (G1) is height
Voltage breaker.
3. high-pressure multi-stage series gap according to claim 1 switch, which is characterized in that control switch (G1) is etc.
Gas ions jet stream triggers gas spark switch, Triggered Vacuum Switch, trigatron trigger switch, field distortion trigger switch or height
Press semiconductor switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810814559.6A CN109004509A (en) | 2018-07-23 | 2018-07-23 | A kind of high-pressure multi-stage series gap switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810814559.6A CN109004509A (en) | 2018-07-23 | 2018-07-23 | A kind of high-pressure multi-stage series gap switch |
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| Publication Number | Publication Date |
|---|---|
| CN109004509A true CN109004509A (en) | 2018-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810814559.6A Pending CN109004509A (en) | 2018-07-23 | 2018-07-23 | A kind of high-pressure multi-stage series gap switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737555A (en) * | 2020-12-30 | 2021-04-30 | 安徽徽电科技股份有限公司 | High pulse trigger circuit and device for vacuum spark gap |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3628122A (en) * | 1968-05-16 | 1971-12-14 | Haefely & Cie Ag Emil | Multistage marx impulse generator circuit comprising charging switch and protective resistors |
| CN102523675A (en) * | 2011-12-13 | 2012-06-27 | 西安交通大学 | Plasma ejection device for igniting long air spark gap and circuit thereof |
| CN203166304U (en) * | 2013-03-11 | 2013-08-28 | 中国电力科学研究院 | Trigger type spark gap |
| CN107104364A (en) * | 2017-04-26 | 2017-08-29 | 西安交通大学 | A kind of controllable triggering discharge switch of plural serial stage the air gap high pressure |
-
2018
- 2018-07-23 CN CN201810814559.6A patent/CN109004509A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3628122A (en) * | 1968-05-16 | 1971-12-14 | Haefely & Cie Ag Emil | Multistage marx impulse generator circuit comprising charging switch and protective resistors |
| CN102523675A (en) * | 2011-12-13 | 2012-06-27 | 西安交通大学 | Plasma ejection device for igniting long air spark gap and circuit thereof |
| CN203166304U (en) * | 2013-03-11 | 2013-08-28 | 中国电力科学研究院 | Trigger type spark gap |
| CN107104364A (en) * | 2017-04-26 | 2017-08-29 | 西安交通大学 | A kind of controllable triggering discharge switch of plural serial stage the air gap high pressure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737555A (en) * | 2020-12-30 | 2021-04-30 | 安徽徽电科技股份有限公司 | High pulse trigger circuit and device for vacuum spark gap |
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Effective date of abandoning: 20210115 |