CN208172114U - Operation load circuit - Google Patents
Operation load circuit Download PDFInfo
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- CN208172114U CN208172114U CN201820279244.1U CN201820279244U CN208172114U CN 208172114 U CN208172114 U CN 208172114U CN 201820279244 U CN201820279244 U CN 201820279244U CN 208172114 U CN208172114 U CN 208172114U
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- Prior art keywords
- arrester
- circuit
- sample
- unipolarity
- current
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- 239000003990 capacitor Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000012360 testing method Methods 0.000 abstract description 12
- 230000003245 working effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000005404 monopole Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model provides an action load circuit relates to electric wire netting technical field for can not survey the working property's of arrester problem comprehensively among the solution prior art. Wherein the circuit comprises: the device comprises a unipolar sine half-wave current impact unit, a ball gap switch and a lightning arrester sample; the first electrode of the ball gap switch is connected with the unipolar sine half-wave current impact unit, the second electrode of the ball gap switch is connected with the lightning arrester, and the unipolar sine half-wave current impact unit is used for injecting unipolar sine half-wave 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 electric power network technique field more particularly to a kind of operating duty circuits.
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 operating duty circuit, to solve that the work of arrester cannot be investigated comprehensively in the prior art
The problem of making performance.
In order to achieve the above objectives, the utility model adopts the following technical solution：
The utility model provides a kind of operating duty circuit, including：Unipolarity sinusoidal half-wave current impact unit, ball gap
Switch, arrester sample, charhing unit, divider, current divider；The first electrode of the sphere gap switch and the unipolarity are sinusoidal
The connection of half-wave current impact unit, the second electrode of the sphere gap switch are connect with the arrester, the unipolarity sinusoidal half
Wave rush of current unit is used to inject unipolarity sinusoidal half-wave current energy for the arrester sample.
Operating duty circuit provided by the utility model, the circuit including injecting unipolarity half-sinusoid for arrester sample
Unit, thus, it is possible to be investigated in the case where half-sinusoid injection, the working condition of arrester mentions in operating duty test
The accuracy for rising operating duty test, to promote the job stability of arrester.
In a kind of possible design, the unipolarity sinusoidal half-wave current impact unit includes：It is closed with being connected in parallel
At least two capacitors of system, with the concatenated inductance of at least two capacitors, wherein the inductance of the inductance is adjustable.
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 fill for the circuit
Electricity, 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 work of the wavelength of the unipolarity half-sinusoid of the injection and the arrester sample
Condition is consistent.It is thus possible to the unipolarity sinusoidal half-wave current of corresponding wavelength be injected for specific arrester, so that movement
Load test results are more in line with 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.It should be noted that arrester can be investigated comprehensively in high current, long follow current and half-sinusoid in the utility model
Working condition under electric current, the accuracy of further enhancing action load testing.
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 the structure chart of operating duty circuit 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 operating duty circuit, as shown in Figure 1, the circuit includes：Unipolarity half-sinusoid
Rush of current unit, sphere gap switch, arrester sample, charhing unit, divider, current divider.
Wherein, unipolarity sinusoidal half-wave current impact unit includes：At least two capacitor C with parallel connectivity,
With the concatenated inductance L of at least two capacitor, wherein the inductance of the inductance is adjustable.In multiple capacitors in parallel, often
The capacitance of a capacitor may be the same or different, and the utility model is limited not to this.
It is understood that in the present invention, injection can be adjusted by adjusting the inductance of controllable impedance L
The duration of unipolarity half-sinusoid adjusts the wavelength of unipolarity half-sinusoid.Optionally, the unipolarity of the injection is being just
The wavelength of string half-wave is consistent with the operating condition of the arrester sample.To inject different monopoles for the arrester of different operating conditions
Property sinusoidal half-wave current.For example, for the arrester of circuit types, the unipolarity sinusoidal half that wavelength is 200 μ s should be used
Wave impact, and the arrester of direct current E type may be needed to use wavelength for 10ms or longer unipolarity half-sinusoid
Impact.
As shown in Figure 1, the first electrode of the sphere gap switch T, i.e. electrode a and the unipolarity sinusoidal half-wave current impact
Inductance L connection in unit, the second electrode of the sphere gap switch T, i.e. electrode b are connect with one end of the arrester sample,
The other end of arrester sample is grounded, and the unipolarity sinusoidal half-wave current impact unit is used to inject for the arrester sample
Unipolarity sinusoidal half-wave current energy.
Operating duty circuit provided by the utility model, the circuit including injecting unipolarity half-sinusoid for arrester sample
Unit, thus, it is possible to be investigated in the case where half-sinusoid injection, the working condition of arrester mentions in operating duty test
The accuracy for rising operating duty test, to promote the job stability of arrester.
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 in operating duty circuit
Middle deployment current divider, current divider are used to record the electric current of arrester sample.Specifically, one end of current divider and the charhing unit
Second end connection, the other end of the current divider 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
Operating duty circuit in dispose divider, divider is used to record the voltage of arrester sample.Specifically, the divider with
The arrester sample is in parallel.
Alternatively, the circuit further includes heavy current impact unit and/or long follow current impact unit.Specifically,
Unipolarity sinusoidal half-wave current impact unit can be replaced with into 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 continue electricity to be long
The design method of stream impact circuit, heavy current impact circuit and long follow current impact circuit can be found in the prior art, this is practical
New embodiment 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, so that operating duty cycle test obtained
It is more accurate for the result of arrester performance.
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 (9)
1. a kind of operating duty circuit, which is characterized in that the circuit includes：Unipolarity sinusoidal half-wave current impact unit, ball
Gap switch and arrester sample；
The first electrode of the sphere gap switch is connect with the unipolarity sinusoidal half-wave current impact unit, the sphere gap switch
Second electrode is connect with the arrester, and the unipolarity sinusoidal half-wave current impact unit is used to infuse for the arrester sample
Enter unipolarity half-sinusoid.
2. circuit according to claim 1, which is characterized in that the unipolarity sinusoidal half-wave current impact unit includes：
At least two capacitors with parallel connectivity, with the concatenated inductance of at least two capacitors, wherein the inductance
Inductance 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 circuit, the movement switched with trigger sphere gap.
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 unipolarity half-sinusoid of the injection
Wavelength is consistent with the operating condition of the arrester sample.
7. circuit according to claim 3, which is characterized in that the wavelength of the unipolarity half-sinusoid of the injection with it is described
The operating condition of arrester 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820279244.1U CN208172114U (en) | 2018-02-27 | 2018-02-27 | Operation load circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820279244.1U CN208172114U (en) | 2018-02-27 | 2018-02-27 | Operation load circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208172114U true CN208172114U (en) | 2018-11-30 |
Family
ID=64384972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820279244.1U Expired - Fee Related CN208172114U (en) | 2018-02-27 | 2018-02-27 | Operation load circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208172114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333451A (en) * | 2018-02-27 | 2018-07-27 | 南方电网科学研究院有限责任公司 | Operation load circuit |
-
2018
- 2018-02-27 CN CN201820279244.1U patent/CN208172114U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108333451A (en) * | 2018-02-27 | 2018-07-27 | 南方电网科学研究院有限责任公司 | Operation load circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |