CN202887558U - Lightning arrester operation simulation device - Google Patents
Lightning arrester operation simulation device Download PDFInfo
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- CN202887558U CN202887558U CN 201220534817 CN201220534817U CN202887558U CN 202887558 U CN202887558 U CN 202887558U CN 201220534817 CN201220534817 CN 201220534817 CN 201220534817 U CN201220534817 U CN 201220534817U CN 202887558 U CN202887558 U CN 202887558U
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- Prior art keywords
- leakage current
- reference voltage
- power supply
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- voltage
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- 238000004088 simulation Methods 0.000 title abstract description 13
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract description 28
- 239000011787 zinc oxide Substances 0.000 abstract description 14
- 238000012549 training Methods 0.000 abstract description 11
- 229960001296 zinc oxide Drugs 0.000 description 13
- 238000010586 diagram Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
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Abstract
The utility model relates to the technical field of electric power equipment, and discloses a lightning arrester operation simulation device. The device comprises a housing. The device further comprises: a power supply unit used for access to an AC power source; a reference voltage simulation unit connected with the power supply unit; a leakage current simulation unit connected with the power supply unit; a reference voltage output interface connected with the reference voltage simulation unit; and a leakage current output interface connected with the leakage current simulation unit. The power supply unit, the reference voltage simulation unit and the leakage current simulation unit are positioned in the housing. The reference voltage output interface and the leakage current output interface are placed on the surface of the housing. The lightning arrester operation simulation device, based on the electrical principle, is capable of simulating electrified operation states of a zinc oxide lightning arrester, is small in size and light in weight, and is quite suitable for being used by a skill training class to help students to well understand and grasp principles and operation skills about an apparatus like the lightning arrester.
Description
Technical field
The utility model relates to electrical equipment technical field, is specifically related to a kind of lightning arrester operation analogue means.
Background technology
Metal oxide arrester is because of its superior nonlinear characteristic and through-current capability. is widely used in the electric system.Operating lightning arrester is because of internal wetted or bear for a long time the insulation defect such as aging that occurs under working voltage and the superpotential effect, all can cause the resistive component in the lightning arrester ac leakage current to increase, thus the accelerated deterioration process.Judge whether Zinc-Oxide Arrester has aging or the phenomenon of making moist, and the method for on-the-spot more employing live testing is namely measured under the working voltage, and whether the resistive component in the Zinc-Oxide Arrester body ac leakage current has significant change.Therefore, working voltage and the electric current of lightning arrester are measured the accurate evaluation that will directly determine lightning arrester insulation status accurately.
Zinc oxide arrester tester is the important instrument of finishing this work.Along with the progress of manufacturer's productive capacity and technical merit, this quasi-instrument moves to maturity gradually and in the electric system widespread use, has obtained electric power overhaul personnel's approval.
For making maintainer's correct understanding and grasp the use operative skill of zinc oxide arrester tester, generally to carry out to it training of a period of time the maintainer is pre-job.General in the prior art is that the student that undergoes training utilizes zinc oxide arrester tester that the Zinc-Oxide Arrester material object in the charged situation is measured, and there is following shortcoming in this mode:
One, Zinc-Oxide Arrester build in kind, weight are larger, training venue etc. are required high, when the student that undergoes training is more, more are unfavorable for carrying out.
Two, carry out the zinc oxide lightning arrester block property current test job under the charging operation, have larger potential safety hazard.
The utility model content
The utility model embodiment technical matters to be solved provides a kind of lightning arrester operation analogue means, can be at the charging operation state of electrical principle simulation Zinc-Oxide Arrester, and this device volume is little, lightweight, is fit to skills training class and uses.
The utility model embodiment provides a kind of lightning arrester operation analogue means, comprise housing, also comprise: be used for power supply unit, the reference voltage analogue unit that is connected with described power supply unit, the leakage current analogue unit that is connected with described power supply unit, the reference voltage output interface that is connected with described reference voltage analogue unit of incoming transport power supply and the leakage current output interface that is connected with described leakage current analogue unit; Wherein, described power supply unit, described reference voltage analogue unit and described leakage current analogue unit are positioned at described housing, and described reference voltage output interface and described leakage current output interface are positioned at described surface of shell.
The lightning arrester operation analogue means that provides among the utility model embodiment is at the charging operation state of electrical principle simulation Zinc-Oxide Arrester, operation use also to actual checking experiment situation under similar, volume is little, lightweight, very suitable skills training class uses, can the student be understood and grasp principle and the operative skill of this quasi-instrument, can when reaching training purpose, significantly improve work efficiency.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use among the embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of a panel of lightning arrester operation analogue means among the utility model embodiment;
Fig. 2 is the block diagram of lightning arrester operation analogue means among the utility model embodiment;
Fig. 3 is the circuit diagram of lightning arrester operation analogue means among the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
A kind of lightning arrester operation analogue means is provided among the utility model embodiment, be used for the charging operation state at electrical principle simulation Zinc-Oxide Arrester, operation use also to actual checking experiment situation under similar, volume is little, lightweight, very suitable skills training class uses.Below be elaborated.
The utility model provides a kind of lightning arrester operation analogue means, as shown in Figure 1, 2, comprise housing 1, also comprise: be used for power supply unit 2, the reference voltage analogue unit 3 that is connected with power supply unit 2, the leakage current analogue unit 4 that is connected with power supply unit 3, the reference voltage output interface 5 that is connected with reference voltage analogue unit 3 of incoming transport power supply and the leakage current output interface 6 that is connected with leakage current analogue unit 4; Wherein power supply unit 2, reference voltage analogue unit 3 and leakage current analogue unit 4 all are positioned at housing 1 inside, and reference voltage output interface 5 and leakage current output interface 6 are positioned at the surface of housing 1.
Further, shown in Fig. 1,3, this lightning arrester operation analogue means also comprises power switch 7, and power switch 7 is positioned on the panel of housing 1, and power switch 7 is connected with power supply unit 2, and power switch 7 can be used for controlling the break-make of this installation's power source.
Particularly, as shown in Figure 3, reference voltage analogue unit 3 comprises the first voltage transformer (VT) 31, the primary side of the first voltage transformer (VT) 31 is connected with power supply unit 2, secondary side is connected with reference voltage output interface 5, and the voltage transformation of the alternating current that the first voltage transformer (VT) 31 can access power supply unit is to required reference voltage.In the present embodiment, when the voltage of alternating current of access is 220V, the reference voltage of secondary side output can be about 57.7V.
Particularly, the electric capacity 43 that shown in Fig. 1,3, leakage current analogue unit 4 comprises second voltage mutual inductor 41, connects the resistance 42 of second voltage mutual inductor 41, be connected in parallel with resistance 42 and the reometer 44 that all is connected in series with resistance 42 and electric capacity 43.The primary side of second voltage mutual inductor 41 is connected with power supply unit 2, the voltage transformation of the alternating current that power supply unit 2 can be accessed is to required voltage, preferably, second voltage mutual inductor 41 is adjustable voltage mutual inductor, in order to obtain the output of Zinc-Oxide Arrester analog current different value.Drawn second voltage mutual inductor 41 is that two grades of formulas are adjustable among Fig. 3, accordingly, also comprised gauge tap 45 in the circuit, gauge tap 45 is connected with second voltage mutual inductor 41, gauge tap 45 is used for control second voltage mutual inductor secondary side voltage, for the ease of operation, the control button of gauge tap 45 or sliding button are arranged at housing 1 surface.
Need to prove, second voltage mutual inductor 41 is the adjustable voltage mutual inductor of other type also, as uses continuous adjustable voltage mutual inductor to form second voltage mutual inductor 41.
As shown in Figure 3, resistance 42 and electric capacity 43 are connected in parallel, and can obtain the electric current that and voltage have certain phase relation after circuit is connected, and can simulate the leakage current of the lightning arrester under the charging operation; In the present embodiment, two grades of electric currents adjustable (the secondary side voltage by second voltage mutual inductor 41 determines) are arranged in this device.The reometer 44 that connects in the circuit is used for the size of the leakage current that measure analog obtains, and as shown in Figure 1, is provided with display unit 8 at the housing 1 of lightning arrester operation analogue means, and display unit 8 is connected with reometer 44, can show the reading of reometer 44.
In one of them embodiment of the present utility model, the secondary side voltage of second voltage sensor 41 can be made as 10V and 5V is adjustable, the resistance of resistance 42 is 100k Ω, the electric capacity of electric capacity 43 is 0.01 μ F.
Need to prove, cited various parameters are the selection in the present embodiment in above-described embodiment, are not limitation of the utility model, and the design parameter of each element also can be selected or adjust according to actual conditions to persons skilled in the art.
Need to prove, each unit or the element that are positioned in above-described embodiment on the housing can all be positioned on the panel of housing 1 as shown in Figure 1, certainly also can be positioned at other the suitable positions on the housing 1.
The above lightning arrester operation analogue means that the utility model embodiment is provided is described in detail, this device can be at the charging operation state of electrical principle simulation Zinc-Oxide Arrester, operation use also to actual checking experiment situation under similar, volume is little, lightweight, very suitable skills training class uses, can the student be understood and grasp principle and the operative skill of this quasi-instrument, can when reaching training purpose, significantly improve work efficiency.
Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. a lightning arrester moves analogue means, comprise housing, it is characterized in that, also comprise: be used for power supply unit, the reference voltage analogue unit that is connected with described power supply unit, the leakage current analogue unit that is connected with described power supply unit, the reference voltage output interface that is connected with described reference voltage analogue unit of incoming transport power supply and the leakage current output interface that is connected with described leakage current analogue unit; Wherein said power supply unit, described reference voltage analogue unit and described leakage current analogue unit are positioned at described housing, and described reference voltage output interface and described leakage current output interface are positioned at described surface of shell.
2. device according to claim 1 is characterized in that, described reference voltage analogue unit comprises the first voltage transformer (VT).
3. device according to claim 2, it is characterized in that, described leakage current analogue unit comprises: second voltage mutual inductor, the resistance that is connected with described second voltage mutual inductor, with the electric capacity of described resistance parallel connection and the reometer of all connecting with described resistance and described electric capacity.
4. device according to claim 3 is characterized in that, described second voltage mutual inductor is adjustable voltage mutual inductor.
5. device according to claim 4 is characterized in that, described device comprises that also be used to the gauge tap of controlling described second voltage mutual inductor secondary side voltage, described gauge tap is connected with described second voltage mutual inductor.
6. the described device of any one is characterized in that according to claim 3-5, and described device also comprises be used to the display unit that shows described reometer reading, and described display unit is connected with described reometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534817 CN202887558U (en) | 2012-10-18 | 2012-10-18 | Lightning arrester operation simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220534817 CN202887558U (en) | 2012-10-18 | 2012-10-18 | Lightning arrester operation simulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202887558U true CN202887558U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220534817 Expired - Fee Related CN202887558U (en) | 2012-10-18 | 2012-10-18 | Lightning arrester operation simulation device |
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| CN (1) | CN202887558U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108647479A (en) * | 2018-07-03 | 2018-10-12 | 广东电网有限责任公司 | A kind of surge arrester failure transient-wave diagnostic method and device |
-
2012
- 2012-10-18 CN CN 201220534817 patent/CN202887558U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108647479A (en) * | 2018-07-03 | 2018-10-12 | 广东电网有限责任公司 | A kind of surge arrester failure transient-wave diagnostic method and device |
| CN108647479B (en) * | 2018-07-03 | 2020-11-17 | 广东电网有限责任公司 | Lightning arrester fault transient waveform diagnosis method and device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20201018 |
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| CF01 | Termination of patent right due to non-payment of annual fee |