CN208172113U - Lightning arrester detection circuit and device - Google Patents
Lightning arrester detection circuit and device Download PDFInfo
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- CN208172113U CN208172113U CN201820275257.1U CN201820275257U CN208172113U CN 208172113 U CN208172113 U CN 208172113U CN 201820275257 U CN201820275257 U CN 201820275257U CN 208172113 U CN208172113 U CN 208172113U
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- 238000001514 detection method Methods 0.000 title abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000012360 testing method Methods 0.000 abstract description 11
- 238000004870 electrical engineering Methods 0.000 abstract description 2
- 230000003245 working effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 6
- 230000002708 enhancing effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides an arrester detection circuitry relates to electrical engineering technical field for can not survey the working property's of arrester problem comprehensively among the solution prior art. Wherein the circuit comprises: lightning current surge unit, ball gap switch and lightning arrester sample; the first electrode of the ball gap switch is connected with the lightning current impact unit, the second electrode of the ball gap switch is connected with the lightning arrester, and the lightning current impact unit is used for injecting lightning current energy into the lightning arrester sample. The circuit is applied to a scene of testing the working performance of the lightning arrester.
Description
Technical field
The utility model relates to electrical engineering technical field more particularly to a kind of arrester checks circuits and device.
Background technique
In the region for being subject to lightning strike accident, arrester conduct protects electrical equipment against transient overvoltage and endangers and limit
A kind of electric appliance of time of afterflow processed, afterflow amplitude, has been widely used.In the prior art, it is examined using operating duty cycle test
Whether arrester is able to bear the biggish lightning voltage of numerical value, transient overvoltage and continuous voltage, to verify arrester in its longevity
Whether can reliably be run in life.
Currently, executing standard " GB11032 " according to arrester checks technology, in operating duty cycle test, injected for arrester
Current waveform be usually that the high current of 2ms square wave perhaps 4/10us need to investigate arrester under square wave or high current, be
It is no reliably to run.But due to the complexity of thunder and lightning weather, corresponding lightning voltage, electric current are also complex, take shelter from the thunder
The electric current that device is born in actual operation not only includes the above-mentioned more regular square wave or high current referred to, therefore, existing
Have in technology, square wave detected, high current can not comprehensively investigate the working performance of arrester in operating duty cycle test.
Utility model content
The utility model provides a kind of arrester checks circuit and device, to solve to investigate in the prior art to keep away comprehensively
The problem of working performance of thunder device.
In order to achieve the above objectives, the utility model adopts the following technical solution：
In a first aspect, the utility model provides a kind of arrester checks circuit, including：Lightning current impact unit, ball
Gap switch and arrester sample.Wherein, the first electrode of the sphere gap switch is connect with the lightning current impact unit, described
The second electrode of sphere gap switch is connect with the arrester, and the lightning current impact unit is used to infuse for the arrester sample
Enter lightning current energy.
Optionally, the lightning current of injection includes the lightning current of 100/200 μ s and the lightning current of 8/20 μ s.
Arrester checks circuit provided by the utility model, the circuit list including injecting lightning current for arrester sample
Member, thus, it is possible to investigated in the case where injecting lightning impulse current, the working condition of arrester in operating duty test,
The accuracy of enhancing action load testing.It also means that, the arrester sample tested by the operating duty of the utility model,
It is resistant to increasingly complex (not only be resistant to more regular square wave or high current, additionally it is possible to tolerance such as 100/200 μ s
The lightning current of lightning current and 8/20 μ s) overvoltage, overcurrent, to promote work of the arrester in practical thunder and lightning scene
Make stability.
In a kind of possible design, lightning current impact unit includes RLC rush of current circuit, wherein the RLC electricity
The inductance of inductance is adjustable in stream impact circuit and/or the RLC rush of current circuit in capacitor capacitance it is adjustable.To,
Can by adjust RLC rush of current circuit in inductance or capacitor come adjust the impact circuit generation dash current, and will
The dash current of generation injects arrester sample, to detect working condition of the arrester under the dash current of injection.
In a kind of possible design, the first end of the charhing unit is connect with the first electrode of the sphere gap switch,
The second end of the charhing unit is connect with the ground terminal of the arrester sample, and the charhing unit is used to take shelter from the thunder for above-mentioned
The charging of device detection circuit, the movement switched with trigger sphere gap.
In a kind of possible design, the divider is in parallel with the arrester sample, and the divider is for recording
The voltage of the arrester sample.
In a kind of possible design, one end of the current divider is connect with the second end of the charhing unit, and described point
The other end of stream device is connect with the ground terminal of the arrester sample, and the current divider is used to record the electricity of the arrester sample
Stream.
In a kind of possible design, the operating condition phase one of the wavelength of the lightning current of the injection and the arrester sample
It causes.It is thus possible to the lightning current of corresponding wavelength be injected for specific arrester, so that operating duty test result is more
Meet the working condition of the specific arrester, the accuracy of enhancing action load test results.
In a kind of possible design, the circuit further includes that heavy current impact unit or the impact of long follow current are single
Member.To which arrester can be investigated comprehensively under high current, long follow current and sinusoidal half-wave current in the utility model
Working condition, the accuracy of further enhancing action load testing.
Second aspect, the utility model provide a kind of arrester detecting device, which includes shell and above-mentioned first party
Any one arrester checks circuit in each possible design of face and first aspect, also, arrester checks circuit is arranged
Inside housings.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of structure chart of arrester checks circuit provided by the utility model embodiment；
Fig. 2 is a kind of schematic diagram of lightning impulse current provided by the utility model embodiment.
Specific embodiment
It is practical below in conjunction with this to keep the above objects, features, and advantages of the utility model more obvious and easy to understand
Attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, institute
The embodiment of description is only the utility model a part of the embodiment, instead of all the embodiments.Based in the utility model
Embodiment, those of ordinary skill in the art's all other implementation obtained without creative labor
Example belongs to the range of the utility model protection.
The utility model provides a kind of arrester checks circuit, as shown in Figure 1, the circuit includes：Lightning current impact
Unit, sphere gap switch, arrester sample, charhing unit, divider, current divider.
Wherein, lightning current impact unit includes RLC rush of current circuit.Illustratively, as shown in Figure 1, the RLC electric current
Impact the resistance R that circuit includes capacitor C, connect with capacitor C, the inductance L connecting with resistance.
As a kind of possible implementation, the inductance of inductance is adjustable and/or described in the RLC rush of current circuit
The capacitance of capacitor is adjustable in RLC rush of current circuit.It is thus possible to by adjust RLC rush of current circuit in inductance or
The dash current of generation is injected arrester sample to adjust the dash current that the impact circuit generates by capacitor, is kept away with detection
Working condition of the thunder device under the dash current of injection.Wherein it is possible to adjust injection by the inductance for adjusting controllable impedance L
Lightning current duration, that is, adjust lightning current wavelength.
It is understood that the resistance R, inductance L and capacitor C of substitution can also be taken to connect in the utility model embodiment
Connect mode, and multiple resistance, multiple inductance and multiple capacitors can be used, the utility model embodiment not to resistance, inductance and
The connection type of capacitor restricts, as long as after by adjusting controllable impedance and/or tunable capacitor, can generate satisfaction injection item
The lightning current of part.If also, using multiple capacitors, multiple resistance or multiple inductance, in multiple capacitors, Mei Ge electricity
The capacitance of appearance may be the same or different, similarly, the setting of the inductance of the resistance value of multiple resistance and multiple inductance
It can be limited with the setting of reference capacitance, the utility model not to this.
Optionally, the wavelength of the thunder and lightning of above-mentioned injection is consistent with the operating condition of the arrester sample.To be different works
The arrester of condition injects different lightning currents.It illustratively, should be 200 μ s with wavelength for the arrester of circuit types
Lightning current impact, and may need use that wavelength is 10ms or longer thunder and lightning is electric for the arrester of direct current E type
Stream impact, is illustrative only here, and the corresponding wavelength of each type of lightning-arrest implement body can be according to practical application scene
It determines, the utility model is limited not to this.
As shown in Figure 1, the electricity in the first electrode of the sphere gap switch T, i.e. electrode a and the lightning current impact unit
Feel L connection, the second electrode of the sphere gap switch T, i.e. electrode b are connect with one end of the arrester sample, arrester sample
The other end ground connection, the lightning current impact unit be used for for the arrester sample inject lightning current energy.
Optionally, the lightning current of injection includes the lightning current of 100/200 μ s and the lightning current of 8/20 μ s.Such as Fig. 2
It is shown, for the schematic diagram for the 8/20 μ s lightning current that lightning current impact unit generates.
Arrester checks circuit provided by the utility model, the circuit list including injecting lightning current for arrester sample
Member, thus, it is possible in the case where investigating injection lightning current in the scene of test arrester working performance, the work of arrester
Make situation, the accuracy of enhancing action load testing.It also means that, is tested by the operating duty of the utility model lightning-arrest
Device sample, be resistant to it is increasingly complex (be not only resistant to more regular square wave or high current, additionally it is possible to tolerance such as 100/
The lightning current of the lightning current of 200 μ s and 8/20 μ s) overvoltage, overcurrent, to promote arrester in practical thunder and lightning field
Job stability in scape.
The first electrode of the first end of the charhing unit and the sphere gap switch, i.e. electrode a connection, the charhing unit
Second end connect with the ground terminal of the arrester sample, the charhing unit be used for for the circuit charge, with trigger ball
The movement of gap switch.
In order to measure and record arrester sample electric current waveform and size, it is alternatively possible to arrester checks electricity
Current divider is disposed in road, current divider is used to record the electric current of arrester sample.Specifically, one end of current divider and the charging are single
The second end connection of member, the other end of the current divider are connect with the ground terminal of the arrester sample.
It similarly, can also be in the utility model embodiment in order to measure and record the size and waveform of arrester voltage
Arrester checks circuit in dispose divider, divider is used to record the voltage of arrester sample.Specifically, the divider
It is in parallel with the arrester sample.
Alternatively, the circuit further includes heavy current impact unit and/or long follow current impact unit.Specifically,
Lightning current impact unit can be replaced with to heavy current impact unit, or replace with long follow current impact unit.Wherein,
Heavy current impact unit can be heavy current impact circuit, and long follow current impact unit can be long follow current impact electricity
The design method of road, heavy current impact circuit and long follow current impact circuit can be found in the prior art, and the utility model is implemented
Example is no longer repeated.
As it can be seen that in the utility model embodiment arrester sample can be tested respectively under the scene of different rush of current
The working condition of product obtains working performance of the arrester under the different type function of current, and what is made is directed to arrester performance
Result it is more accurate.
The foregoing is merely specific embodiment of the present utility model, but the protection scope of the utility model is not limited to
This, anyone skilled in the art within the technical scope disclosed by the utility model, the variation that can be readily occurred in
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of arrester checks circuit, which is characterized in that the circuit includes：Lightning current impact unit, sphere gap switch and
Arrester sample；
The first electrode of the sphere gap switch is connect with the lightning current impact unit, the second electrode of the sphere gap switch with
The arrester connection, the lightning current impact unit are used to inject lightning current for the arrester sample.
2. circuit according to claim 1, which is characterized in that the lightning current impact unit includes RLC rush of current
Circuit, wherein the inductance of inductance is adjustable in the RLC rush of current circuit and/or the RLC rush of current circuit in capacitor
Capacitance it is adjustable.
3. circuit according to claim 1 or 2, which is characterized in that the circuit further includes charhing unit；
The first end of the charhing unit is connect with the first electrode of the sphere gap switch, the second end of the charhing unit and institute
The ground terminal connection of arrester sample is stated, the charhing unit is used to charge for the arrester checks circuit, with trigger sphere gap
The movement of switch.
4. circuit according to claim 3, which is characterized in that the circuit further includes divider；
The divider is in parallel with the arrester sample, and the divider is used to record the voltage of the arrester sample.
5. circuit according to claim 4, which is characterized in that the circuit further includes current divider；
One end of the current divider is connect with the second end of the charhing unit, the other end of the current divider and the arrester
The ground terminal of sample connects, and the current divider is used to record the electric current of the arrester sample.
6. circuit described according to claim 1 or 2 or 4 or 5, which is characterized in that the wavelength of the lightning current of the injection with
The operating condition of the arrester sample is consistent.
7. circuit according to claim 3, which is characterized in that the wavelength of the lightning current of the injection and the arrester
The operating condition of sample is consistent.
8. circuit according to claim 6, which is characterized in that the circuit further includes heavy current impact unit and/or length
Follow current impact unit.
9. circuit according to claim 7, which is characterized in that the circuit further includes heavy current impact unit and/or length
Follow current impact unit.
10. a kind of arrester detecting device, which is characterized in that described device includes any one in shell and claim 1 to 9
Arrester checks circuit described in, the arrester checks circuit are arranged in the enclosure interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275257.1U CN208172113U (en) | 2018-02-27 | 2018-02-27 | Lightning arrester detection circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275257.1U CN208172113U (en) | 2018-02-27 | 2018-02-27 | Lightning arrester detection circuit and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208172113U true CN208172113U (en) | 2018-11-30 |
Family
ID=64384886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820275257.1U Active CN208172113U (en) | 2018-02-27 | 2018-02-27 | Lightning arrester detection circuit and device |
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| Country | Link |
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| CN (1) | CN208172113U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107300A (en) * | 2018-02-27 | 2018-06-01 | 南方电网科学研究院有限责任公司 | Lightning arrester detection circuit and device |
| CN110308354A (en) * | 2019-07-24 | 2019-10-08 | 王炎 | A kind of multicolumn lightning arrester connected in parallel experimental rig and its test method |
| CN110988444A (en) * | 2019-11-21 | 2020-04-10 | 深圳供电局有限公司 | Zinc oxide lightning arrester voltage divider, overvoltage detection lightning arrester and detection method |
-
2018
- 2018-02-27 CN CN201820275257.1U patent/CN208172113U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107300A (en) * | 2018-02-27 | 2018-06-01 | 南方电网科学研究院有限责任公司 | Lightning arrester detection circuit and device |
| CN110308354A (en) * | 2019-07-24 | 2019-10-08 | 王炎 | A kind of multicolumn lightning arrester connected in parallel experimental rig and its test method |
| CN110988444A (en) * | 2019-11-21 | 2020-04-10 | 深圳供电局有限公司 | Zinc oxide lightning arrester voltage divider, overvoltage detection lightning arrester and detection method |
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