CN204086379U - A kind of shnt capacitor fling-cut switch restoring over-voltage proving installation - Google Patents
A kind of shnt capacitor fling-cut switch restoring over-voltage proving installation Download PDFInfo
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- CN204086379U CN204086379U CN201420628259.6U CN201420628259U CN204086379U CN 204086379 U CN204086379 U CN 204086379U CN 201420628259 U CN201420628259 U CN 201420628259U CN 204086379 U CN204086379 U CN 204086379U
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- voltage
- proving installation
- switch
- signal transmission
- acquisition module
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- 239000003990 capacitor Substances 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 title claims abstract description 20
- 230000008054 signal transmission Effects 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 2
- 229920000260 silastic Polymers 0.000 claims description 2
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000005070 sampling Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
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Abstract
The utility model discloses a kind of shnt capacitor fling-cut switch restoring over-voltage proving installation, comprise and gather each paralleling switch both sides and each shunt capacitance voltage acquisition module away from the voltage of the common port of switch side, be connected with described voltage acquisition module, for carrying out the signal transmission module of voltage signal transmission, be connected with described signal transmission module, the superpotential tester that the voltage signal for gathering described voltage acquisition module processes.The proving installation using the application to provide, can complete and test the superpotential of shnt capacitor fling-cut switch, determine whether switch meets superpotential requirement.
Description
Technical field
The application relates to technical field of power systems, more particularly, relates to a kind of shnt capacitor fling-cut switch restoring over-voltage proving installation.
Background technology
Shunt Capacitor Unit, as capacitive element, is widely used in the reactive-load compensation of electrical network, to improve line voltage and power factor, reduces the damage of circuit.
When switch cut-offs Shunt Capacitor Unit, due to the singularity of load, between contact, there is higher recovery voltage.After dropout current blow-out, residual charge on Capacitor banks cannot discharge at short notice, residual voltage on supply voltage and Capacitor banks is reverse, cause between switch fracture and bear higher restoring over-voltage for a long time, once the insulation recovery intensity of switch can not bear the restoring over-voltage added thereon, very easily there is arc reignition.
Therefore, be necessary to study a kind of proving installation for shnt capacitor fling-cut switch restoring over-voltage, the superpotential of bearing in switching process with Test Switchboard, and then determine whether switch meets superpotential requirement.
Utility model content
In view of this, this application provides a kind of shnt capacitor fling-cut switch restoring over-voltage proving installation, for providing a kind of proving installation for shnt capacitor fling-cut switch restoring over-voltage, the superpotential of bearing in switching process with Test Switchboard.
To achieve these goals, the existing scheme proposed is as follows:
A kind of shnt capacitor fling-cut switch restoring over-voltage proving installation, comprising:
Gather each paralleling switch both sides and each shunt capacitance voltage acquisition module away from the voltage of the common port of switch side;
Be connected with described voltage acquisition module, for carrying out the signal transmission module of voltage signal transmission;
Be connected with described signal transmission module, the superpotential tester that the voltage signal for gathering described voltage acquisition module processes.
Preferably, described voltage acquisition module is voltage divider.
Preferably, described voltage divider is made up of high voltage arm capacitor and low-voltage arm electric capacity, and high voltage arm capacitor and described paralleling switch both sides and each shunt capacitance are connected away from the common port of switch side, and low-voltage arm electric capacity is connected with described signal transmission module.
Preferably, described high voltage arm capacitor outside is coated with silastic material.
Preferably, described signal transmission module is concentric cable.
As can be seen from above-mentioned technical scheme, the shnt capacitor fling-cut switch restoring over-voltage proving installation that the embodiment of the present application provides, comprise and gather each paralleling switch both sides and each shunt capacitance voltage acquisition module away from the voltage of the common port of switch side, be connected with described voltage acquisition module, for carrying out the signal transmission module of voltage signal transmission, be connected with described signal transmission module, the superpotential tester that the voltage signal for gathering described voltage acquisition module processes.The proving installation using the application to provide, can complete and test the superpotential of shnt capacitor fling-cut switch, determine whether switch meets superpotential requirement.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only the embodiment of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is a kind of shnt capacitor fling-cut switch restoring over-voltage schematic diagram disclosed in the embodiment of the present application;
Fig. 2 is a kind of shnt capacitor fling-cut switch restoring over-voltage proving installation test process schematic diagram disclosed in the embodiment of the present application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
See Fig. 1, Fig. 1 a kind of shnt capacitor fling-cut switch restoring over-voltage schematic diagram disclosed in the embodiment of the present application.
After switch T disconnects, the residual charge on Capacitor banks C cannot discharge at short notice, and the residual voltage on supply voltage and Capacitor banks oppositely, causes between switch T fracture and bears higher restoring over-voltage for a long time.The scheme of the application measures the superpotential on switch T just.
See Fig. 2, Fig. 2 a kind of shnt capacitor fling-cut switch restoring over-voltage proving installation test process schematic diagram disclosed in the embodiment of the present application.
As shown in Figure 2, this proving installation comprises:
Gather each paralleling switch T both sides and each shunt capacitance C voltage acquisition module 21 away from the common port N voltage of switch side;
Be connected with described voltage acquisition module 21, for carrying out the signal transmission module 22 of voltage signal transmission;
Be connected with described signal transmission module 22, the superpotential tester 23 that the voltage signal for gathering described voltage acquisition module 21 processes.
Particularly as shown in Figure 2, in Fig. 2, left part is circuit-under-test, and voltage acquisition module 21 gathers the voltage signal U1-U6 of switch T both sides, and voltage acquisition module 21 also gathers the voltage signal U7 of each electric capacity C away from the common port N of switch T side simultaneously.
In Fig. 2, right part is the structure of proving installation, utilizes signal transmission module 22 that the voltage signal of collection is transferred to superpotential tester 23.Completed superpotential on-line monitoring by superpotential tester 23, stored and display from motion tracking, data waveform, the control to voltage acquisition module and the multi input oscillograph by Design of Virtual Instrument realize the function such as inquiry, operation of preserving superpotential historical data.
Superpotential tester 23 has 8 synchronized sampling passages, is enough to support the synchronized sampling process to above-mentioned 7 voltage signals.
Optionally, for obtaining the low voltage signal pressed out from bus point, voltage acquisition module 21 can adopt voltage divider, and the number of voltage divider is 7, gathers the voltage signal at above-mentioned 7 places respectively.Each voltage divider is made up of high voltage arm capacitor and low-voltage arm electric capacity, and it has enough industrial frequency withstand voltages and the ability of surge voltage, and has good frequency response, is beneficial to acquisition operations surge waveform.The first half of voltage divider is the core of voltage divider, i.e. high-voltage capacitance, and most high pressure all drops in high-voltage capacitance, its outside by silicon rubber as insulating material; And the latter half is exactly low-voltage arm capacitive part, low-voltage signal obtains from its two ends.High voltage arm capacitor and paralleling switch both sides and each shunt capacitance are connected away from the common port of switch side, and low-voltage arm electric capacity is connected with described signal transmission module.
Optionally, above-mentioned signal transmission module 22 can select concentric cable.
It should be noted that, the superpotential tester that the application adopts possesses following functions:
can Real-Time Monitoring, from motion tracking execute-in-place superpotential, can, exactly simultaneously recorded voltage waveform and relevant information complete when superpotential occurs;
real-time sampling rate reaches as high as 1.2M/s.From 100K/s to 1.2M/s, scope internal classification can set sampling rate, and 100K/s is one-level;
every passage 4M Large Copacity internal memory;
possess 8 synchronized sampling passages;
start record wave voltage: use neutral point voltage divider signal to be trigger source, or connect external trigger source.Trigger thresholding can arrange arbitrarily;
can manual triggers gather immediately;
have waveform return function, can operate (as stretching, convergent-divergent, channel selecting etc.) to waveform, two groups of subsidiary cursors make measurement more convenient, more accurate, are with good expansibility;
the analog input bandwidth of responsive bandwidth: 0 ~ 1MHZ;
manually can arrange parameters such as sampling rate, sampling length, sampling delay before collection;
there is powerful frequency analysis function, relevant mathematical operation is done to waveform.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the application.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a shnt capacitor fling-cut switch restoring over-voltage proving installation, is characterized in that, comprising:
Gather each paralleling switch both sides and each shunt capacitance voltage acquisition module away from the voltage of the common port of switch side;
Be connected with described voltage acquisition module, for carrying out the signal transmission module of voltage signal transmission;
Be connected with described signal transmission module, the superpotential tester that the voltage signal for gathering described voltage acquisition module processes.
2. proving installation according to claim 1, is characterized in that, described voltage acquisition module is voltage divider.
3. proving installation according to claim 2, it is characterized in that, described voltage divider is made up of high voltage arm capacitor and low-voltage arm electric capacity, high voltage arm capacitor and described paralleling switch both sides and each shunt capacitance are connected away from the common port of switch side, and low-voltage arm electric capacity is connected with described signal transmission module.
4. proving installation according to claim 3, is characterized in that, described high voltage arm capacitor outside is coated with silastic material.
5. proving installation according to claim 1, is characterized in that, described signal transmission module is concentric cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628259.6U CN204086379U (en) | 2014-10-27 | 2014-10-27 | A kind of shnt capacitor fling-cut switch restoring over-voltage proving installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420628259.6U CN204086379U (en) | 2014-10-27 | 2014-10-27 | A kind of shnt capacitor fling-cut switch restoring over-voltage proving installation |
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| Publication Number | Publication Date |
|---|---|
| CN204086379U true CN204086379U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420628259.6U Expired - Fee Related CN204086379U (en) | 2014-10-27 | 2014-10-27 | A kind of shnt capacitor fling-cut switch restoring over-voltage proving installation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014676A (en) * | 2020-09-11 | 2020-12-01 | 西安高压电器研究院有限责任公司 | Switching test device for capacitor device type test |
-
2014
- 2014-10-27 CN CN201420628259.6U patent/CN204086379U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014676A (en) * | 2020-09-11 | 2020-12-01 | 西安高压电器研究院有限责任公司 | Switching test device for capacitor device type test |
| CN112014676B (en) * | 2020-09-11 | 2023-10-13 | 西安高压电器研究院股份有限公司 | Switching test device for capacitor device type test |
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| Date | Code | Title | Description |
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| 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: 20150107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |