CN206236957U - A kind of trigger type sparkgap - Google Patents
A kind of trigger type sparkgap Download PDFInfo
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- CN206236957U CN206236957U CN201621125744.7U CN201621125744U CN206236957U CN 206236957 U CN206236957 U CN 206236957U CN 201621125744 U CN201621125744 U CN 201621125744U CN 206236957 U CN206236957 U CN 206236957U
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- air gap
- capacitor
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- 239000003990 capacitor Substances 0.000 claims abstract description 48
- 238000004804 winding Methods 0.000 claims abstract description 28
- 238000007789 sealing Methods 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a kind of trigger type sparkgap device, including：The air gap G1 and G2, capacitor bank C1 and C2, switch TG, transformer T, triggers circuit TC and switch K, the air gap G1 and G2 series connection；Capacitor bank C1 is in parallel with the air gap G1, capacitor bank C2 and the air gap G2 is in parallel；The switch TG with after the high pressure windings in series of the transformer T and the air gap G1 is in parallel；The switch K is connected with the low pressure winding of the transformer T, and the on off operating mode of the switch K is controlled by triggers circuit TC；The low pressure winding of the transformer T is connected by switching K with minimum one or more levels capacitor of series capacitor group；And during the switch K closures, the connected mode of transformer T windings should cause that high pressure winding is exported and the opposite polarity voltage of low pressure winding.The triggering mode overall structure of spark gap described in the utility model is simple, and the element for triggering system is few, and reliability is high, practical, with engineering application value very high.
Description
Technical field
The utility model is related to electrical equipment technical field, and more particularly, to a kind of trigger type sparkgap.
Background technology
In recent years, in the series compensation device that China puts into operation, some engineering is accepted by offshore company, wherein
Spark-gap devices also provided by external several companies；Another part is domestic series compensation device, and spark gap therein is
There is provided by China Electric Power Research Institute.In the world, only this several company can provide series compensation device control triggering
Type spark gap, but the spark gap operation principle that different manufacturers are provided is different.
Spark gap is the crucial protection equipment of string bowl spares.When because of line fault, capacitor bank voltage is too high, voltage limiter energy
When energy absorption capability exceedes protection definite value, spark gap can be bypassed quickly, play protection capacitor bank in parallel therewith
With the effect of voltage limiter.Spark gap typically constitutes a clearance system by two gap series, is acted spark gap is needed
During bypass series capacitor compensation group, string mends Control protection system and issues gap trigger control box trigger command by optical fiber, and gap is touched
Hair control cabinet sends trigger signal to clearance system again, finally makes spark gap, so that spark gap feed-through capacitor
Group.Found by substantial amounts of Test And Research Work, touching for clearance system can be improved using sealing triggered gap in triggering system
Hair reliability, but only carry out that there is more serious polar effect during ignition discharge on the electrode of seal clearance side, i.e., one
The ignition discharge voltage planted under polarity of voltage is very low, and the ignition discharge voltage under another polarity is very high, and time delay is very
Greatly；This polar effect can be eliminated when being lighted a fire on the high and low pressure electrode of seal clearance simultaneously, makes two reliability of polarity
Ignition discharge voltage is all very low, effectively increases the performance of protection cooperation, so as to during pilot spark gap, be carried under same voltage
The high stability and reliability of triggering electric discharge.
At home and abroad obtain in series compensation extensively should by the trigger type sparkgap of Chinese DianKeYuan independent development
With, and have application to extra-high voltage series compensation engineering.In principle, the existing product of Chinese DianKeYuan has with the product of offshore company
Institute is different：The seal clearance that high and low pressure electrode is lighted a fire simultaneously is employed in triggering system, polar effect is eliminated, while reducing
The magnitude of voltage of reliable triggering electric discharge, improves protection cooperation performance, improves the stability and reliability of triggering electric discharge.But by
The seal clearance that high and low pressure electrode is lighted a fire simultaneously is employed in the trigger theory in the gap, so entirely triggering system element
It is more, it is relatively complicated.
The content of the invention
In order to solve the above problems, the utility model provides a kind of trigger type sparkgap device, and described device includes：
The air gap G1 and G2, capacitor bank C1 and C2, switch TG, transformer T, triggers circuit TC and switch K,
The air gap G1 and G2 connects；Capacitor bank C1 is in parallel with the air gap G1, between capacitor bank C2 and air
Gap G2 is in parallel；
The switch TG with after the high pressure windings in series of the transformer T and the air gap G1 is in parallel；
The switch K is connected with the low pressure winding of the transformer T, and the on off operating mode of the switch K is by triggers circuit TC
Control；
The low pressure winding of the transformer T is connected by switching K with minimum one or more levels capacitor of series capacitor group
Connect；And
When the switch K is closed, the connected mode of transformer T windings should cause that high pressure winding is exported and low pressure winding polarity
Opposite voltage.
Preferably, wherein the switch TG with after the high pressure windings in series of the transformer T and the air gap G1 is in parallel
Resistance R can also be included in loop.
Preferably, wherein the capacitor bank C1 and C2 can be single capacitor unit.
Preferably, wherein the switch TG be sealing gas gap, sealing vacuum gap, unlimited the air gap or
Person's controllable semiconductor switch.
Preferably, wherein the switch K be sealing gas gap, sealing vacuum gap, unlimited the air gap or
Person's controllable semiconductor switch.
Preferably, wherein the low pressure winding of the transformer T it is minimum by switching the voltage of K and series capacitor group one
Group capacitor is connected.
Preferably, wherein the transformer T can be voltage transformer, and the output polarity of the transformer T with it is defeated
Enter opposite polarity.
The beneficial effects of the utility model are：
The energy harvesting mode of the triggers circuit is taken from the minimum group capacitor of the voltage in main capacitor group
Can, while energy is got, trigger control box gets the real-time voltage information of capacitor bank, realizes clearance system judgement
The function of itself instantaneous voltage.The spark triggers circuit is entered in the ranks when the triggering command that string benefit control protection is sent is connected to
The voltage of gap itself judges, some interference signals can be avoided to cause gap to be triggered and discharged so that the reliable trigger in gap is big
Width is improved.
The transformer T has certain rule in wiring so that its input voltage (low-pressure side) and secondary output
The phase of voltage (high-pressure side) be it is opposite, it is big so as to cause to switch voltage instantaneous TG two ends born after trigger pulse is sent
Width increases, and promotes switch TG from conducting.The reliability of the switch TG triggering and conductings of the utility model triggering mode is higher, and triggering
System element is few, and structure is simpler.The triggering mode overall structure of spark gap described in the utility model is simple, triggering system
Element is few, and reliability is high, practical, with engineering application value very high.
Brief description of the drawings
By reference to the following drawings, illustrative embodiments of the present utility model can be more fully understood by：
Fig. 1 is the fundamental diagram of the spark gap according to the utility model implementation method；And
Fig. 2 is the structural representation of another embodiment according to the utility model implementation method.
Specific embodiment
With reference now to accompanying drawing, illustrative embodiments of the present utility model are introduced, however, the utility model can use many
Different forms is implemented, and is not limited to embodiment described herein, there is provided these embodiments are in order at large and complete
The utility model is disclosed entirely, and scope of the present utility model is fully passed on to person of ordinary skill in the field.For
Term in the illustrative embodiments being illustrated in the accompanying drawings is not to restriction of the present utility model.In the accompanying drawings, identical
Cells/elements use identical reference.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with usually used dictionary, is appreciated that and it
The linguistic context of association area has consistent implication, and is not construed as Utopian or excessively formal meaning.
Fig. 1 is the fundamental diagram of the spark gap according to the utility model implementation method.As shown in figure 1, the triggering
Type spark gap includes：The air gap G1 and G2, capacitor bank C1 and C2, switch TG, transformer T, triggers circuit TC and open
Close K, the air gap G1 and G2 series connection；Capacitor bank C1 is in parallel with the air gap G1, capacitor bank C2 and the air gap G2
It is in parallel；The switch TG with after the high pressure windings in series of the transformer T and the air gap G1 is in parallel；The switch K with it is described
The low pressure winding connection of transformer T, the on off operating mode of the switch K is controlled by triggers circuit TC；The low pressure of the transformer T around
Group is connected by switching K with minimum one or more levels capacitor of series capacitor group；And during the switch K closures, transformation
The connected mode of device T windings should cause that high pressure winding is exported and the opposite polarity voltage of low pressure winding.
Preferably, wherein the switch TG be sealing gas gap, sealing vacuum gap, unlimited the air gap or
Person's controllable semiconductor switch.Preferably, the switch K be sealing gas gap, sealing vacuum gap, unlimited air between
Gap or controllable semiconductor switch.Preferably, wherein the capacitor bank C1 and C2 can be single capacitor unit.Due to electricity
The pressure effect of container group C1 and C2, when string is mended control protective unit and normally run with rated value so that two are connected in series
The air gap G1 and G2 respectively undertake the 1/2 of series capacitor compensation group rated voltage, it is specified that switch TG also takes on series capacitor compensation group
The 1/2 of voltage.When earth fault occurs in circuit, due to the effect of voltage limiter, it is assumed that the voltage highest of capacitor bank is increased
To UPL, the voltage about U that two the air gaps G1 and G2 undertake before actionPL/2.The air gap G1 and G2 and switch TG
Distance adjustment be with ensure without trigger in the case of gap under the overvoltage that maximum possible undergoes will not self discharge, but
Gap is enabled to after trigger pulse is given, and reliably electric discharge is principle.
Energy is obtained on the minimum group capacitor Cz1 of triggers circuit TC voltages from capacitor bank C, and it is described
Triggers circuit obtains the real-time voltage value of main capacitor group C.The triggers circuit TC is responsible for receiving string benefit control protective unit hair
The triggering command that goes out simultaneously sends trigger pulse to the transformer T.After trigger pulse boosts through transformer T, make the two of switch TG
Pressure difference on individual electrode is significantly increased suddenly, beyond the self discharge voltage of switch TG, so as to promote switch TG to puncture rapidly.It is described
After switch TG punctures, the capacitor C1 and C2 in parallel with the air gap G1 will be discharged by the first winding of transformer T, be made
The voltages that undertake of the air gap G1 decline rapidly, and the voltage that the air gap G2 undertakes rises rapidly until G2 from
Discharge, and then whole voltages are applied on the air gap G1, make the air gap G1 also rapid self discharges, so far,
Two the air gap G1, G2 being connected in series all discharge, and series capacitor compensation group C and voltage limiter (by protection equipment) are bypassed,
Complete a gap triggering discharge process.The spark gap is suitable for being operated in series compensation device and series resonance-type event
In barrier demand limiter, for quick bypass capacitor bank.
Fig. 2 is the structural representation of another embodiment according to the utility model implementation method.As shown in Fig. 2 including empty
Gas clearance G 1 and G2, triggers circuit TC, switch TG, resistance R, transformer T, capacitor C1, C2, string mend main capacitor group unit
Cz1, Cz2 ... Czn, high-pressure side HV and low-pressure end LV.
The utility model is described by reference to a small amount of implementation method.However, it is known in those skilled in the art,
As subsidiary Patent right requirement is limited, except the utility model other embodiments disclosed above equally fall
In the range of the utility model.
Normally, all terms for using in the claims are all solved according to them in the usual implication of technical field
Release, unless clearly defined in addition wherein.It is all of to be all opened ground with reference to " one/described/be somebody's turn to do [device, component etc.] "
At least one of described device, component etc. example is construed to, unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate order, unless explicitly stated otherwise.
The utility model is described by reference to a small amount of implementation method.However, it is known in those skilled in the art,
As subsidiary Patent right requirement is limited, except the utility model other embodiments disclosed above equally fall
In the range of the utility model.
Normally, all terms for using in the claims are all solved according to them in the usual implication of technical field
Release, unless clearly defined in addition wherein.It is all of to be all opened ground with reference to " one/described/be somebody's turn to do [device, component etc.] "
At least one of described device, component etc. example is construed to, unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate order, unless explicitly stated otherwise.
Claims (7)
1. a kind of trigger type sparkgap device, described device includes：The air gap G1 and G2, capacitor bank C1 and C2, switch
TG, transformer T, triggers circuit TC and switch K, it is characterised in that
The air gap G1 and G2 connects；Capacitor bank C1 is in parallel with the air gap G1, capacitor bank C2 and the air gap G2
It is in parallel；
The switch TG with after the high pressure windings in series of the transformer T and the air gap G1 is in parallel；
The switch K is connected with the low pressure winding of the transformer T, and the on off operating mode of the switch K is controlled by triggers circuit TC；
The low pressure winding of the transformer T is connected by switching K with minimum one or more levels capacitor of series capacitor group；
When the switch K is closed, the connected mode of transformer T windings should cause that high pressure winding is exported and low pressure winding opposite polarity
Voltage.
2. spark gap device according to claim 1, it is characterised in that the height of the switch TG and transformer T
Resistance R is included after pressure windings in series and in the air gap G1 loops in parallel.
3. spark gap device according to claim 1, it is characterised in that the capacitor bank C1 and C2 can be single
Capacitor unit.
4. spark gap device according to claim 1, it is characterised in that the switch TG be sealing gas gap,
The vacuum gap of sealing, unlimited the air gap or controllable semiconductor switch.
5. spark gap device according to claim 1, it is characterised in that the switch K is the gas gap of sealing, close
The vacuum gap of envelope, unlimited the air gap or controllable semiconductor switch.
6. spark gap device according to claim 1, it is characterised in that the low pressure winding of the transformer T is by opening
A K group capacitors minimum with the voltage of series capacitor group is closed to be connected.
7. spark gap device according to claim 1, it is characterised in that the transformer T is voltage transformer, and
The output polarity of the transformer T and input opposite polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621125744.7U CN206236957U (en) | 2016-10-14 | 2016-10-14 | A kind of trigger type sparkgap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621125744.7U CN206236957U (en) | 2016-10-14 | 2016-10-14 | A kind of trigger type sparkgap |
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| Publication Number | Publication Date |
|---|---|
| CN206236957U true CN206236957U (en) | 2017-06-09 |
Family
ID=58982330
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621125744.7U Active CN206236957U (en) | 2016-10-14 | 2016-10-14 | A kind of trigger type sparkgap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571583A (en) * | 2016-10-14 | 2017-04-19 | 中国电力科学研究院 | Triggering type spark gap |
-
2016
- 2016-10-14 CN CN201621125744.7U patent/CN206236957U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571583A (en) * | 2016-10-14 | 2017-04-19 | 中国电力科学研究院 | Triggering type spark gap |
| CN106571583B (en) * | 2016-10-14 | 2018-04-10 | 中国电力科学研究院 | A kind of trigger type sparkgap |
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