CN202351403U - Electric leakage testing apparatus - Google Patents
Electric leakage testing apparatus Download PDFInfo
- Publication number
- CN202351403U CN202351403U CN2011205135026U CN201120513502U CN202351403U CN 202351403 U CN202351403 U CN 202351403U CN 2011205135026 U CN2011205135026 U CN 2011205135026U CN 201120513502 U CN201120513502 U CN 201120513502U CN 202351403 U CN202351403 U CN 202351403U
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- China
- Prior art keywords
- wiring point
- leak
- age
- transformer
- test device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 238000004880 explosion Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model provides an electric leakage testing apparatus. In the electric leakage testing apparatus, a first terminal point and a second terminal point in a three-phase AC (alternate current) circuit are respectively connected into both ends of the input side of a transformer; a series circuit loop is formed by the output side of the transformer, a duplex button and a contactor; and a third terminal point in the three-phase AC circuit is connected into the ground by a normally-open contact of the contactor. After the electric leakage testing apparatus provided by the utility model is adopted, the process of doing a remote electric leakage experiment is simplified and the electric leakage testing apparatus is more convenient to operate. The electric leakage testing apparatus is flexible to act and is safe and reliable. Moreover, the test data result can be ensured to be accurate.
Description
Technical field
The utility model relates to a kind of leak(age) test device, and this leak(age) test device is used in especially and carries out the borehole operation test in the field, colliery.
Background technology
In the field, colliery, often need to adopt the feeding switch leak detection relay at present,, guarantee power supply safety so that down-hole low-voltage power supply system operate as normal and work are sensitive reliable.For this reason, need regularly leak detection relay to be carried out the artificial leak(age) test in a distant place.
Usually the test method that is adopted is: the load side at the CS of distal-most end inserts test resistances by different electric pressures, for example in the electromagnetic starter one of test resistance terminate at fuse tube spiral shell buckle, and the other end is connected on the shell.Cover enclosing cover then and send electricity, observe feeding switch and whether trip.Like tripping operation, leak detection protective device reliable in action is described then.
After test finishes, need to remove test resistance.Yet it is all very inconvenient in process of the test, to install, remove test resistance, if misoperation also can influence test findings.In disassembly process, be easy to produce electric spark, this just causes very big potential safety hazard.
The utility model content
The utility model provides a kind of leak(age) test device, has overcome the many defectives that exist in the prior art mentioned above.
Particularly; The utility model provides a kind of leak(age) test device; In this leak(age) test device; First wiring point in the three-phase circuit and second wiring point insert the two ends of the input side of transformer respectively, and the outgoing side of this transformer and duplex button, contactor form the series circuit loop, and the 3rd wiring point in the three-phase circuit inserts the earth through the normally opened contact of contactor.
Preferably, first fuse is set on the connection line between first wiring point and the transformer.
More preferably, second fuse is set on the connection line between second wiring point and the transformer.
Preferably, on the connection line between the 3rd wiring point and the earth, current-limiting resistance is set.
Preferably, transformer and contactor all are fixed in the anti-explosion terminal box, and three-phase circuit is drawn from this anti-explosion terminal box.
More preferably, first wiring point, second wiring point, the 3rd wiring point are fixed on the switch load side joint terminal.
Adopt like the described leak(age) test device of the utility model, simplified the operation of doing distant place leak(age) test, make it more convenient to operate.This leak(age) test device action is sensitive, and is safe and reliable, and the test figure result can guarantee comparatively accurate.
Description of drawings
Fig. 1 illustrates the outside drawing according to the leak(age) test device in the mine anti-explosion terminal box of the utility model;
Fig. 2 illustrates the leak(age) test manipulated or operated apparatus according to the utility model.
Reference numeral:
Current-limiting resistance 1
Second fuse 6
Normally opened contact KM
The first wiring point A
The second wiring point B
The 3rd wiring point C
Embodiment
Hereinafter, identical Reference numeral refers to components identical.
Fig. 1 illustrates the outside drawing according to the leak(age) test device in the mine anti-explosion terminal box of the utility model.In circuit board shown in Figure 1, be placed with current-limiting resistance 1, duplex button 2, first fuse 3, second fuse 6, transformer 4, contactor 5.Fig. 1 is clear to illustrate the relative position of above-mentioned each element in said leak(age) test device, yet does not show the electrical connection between each element.
Fig. 2 illustrates the leak(age) test manipulated or operated apparatus according to the utility model.Demonstrate three-phase wiring point A, B, C in the three-phase circuit that anti-explosion terminal box draws among Fig. 2.Wherein, the first wiring point A, the second wiring point B insert the two ends of the input side of transformer 4 respectively, and the outgoing side of transformer 4 and duplex button 2, contactor 5 form the series circuit loop.The 3rd wiring point C is through the normally opened contact KM of contactor 5 ground connection.It should be noted that because normally opened contact KM is in normally open therefore the 3rd wiring point C this moment and unearthed, the feeding switch that therefore is in the three-phase circuit can't trip.
Preferably; First fuse 3 is set on the connection line between the first wiring point A and the transformer 4; Second fuse 6 is set on the connection line between the second wiring point B and the transformer 4; On the connection line between the 3rd wiring point C and the earth, current-limiting resistance 1 is set, total system is caused damage to prevent that electric current is excessive.Preferably, the fusing current of first and second fuses is 2 peaces, and current-limiting resistance is 1000 Europe.
When the leak(age) test device moves, because the two ends of the input side of transformer 4 are connected respectively to the first wiring point A and the second wiring point B in the three-phase circuit.Therefore, form certain trial voltage at the two ends of the input side of transformer 4.This trial voltage forms a certain amount of output voltage after transformer 4 transformations.
Because the outgoing side of transformer 4, contactor 5, duplex button 2 series connection each other form the loop; Therefore the outgoing side at transformer 4 produces under the situation of certain voltage; Press duplex button 2 this moment, with regard to conducting electric current arranged in this loop, just the coil in the contactor 5 got thus.
Because it is electric that the coil in the contactor 5 gets, just make the normally opened contact KM of contactor 5 closed, just make the 3rd wiring point C and the earth form thus and conduct.In the case, the feeding switch in the three-phase circuit is tripped.The tripping operation of feeding switch just means leak detection protective device reliable in action.
According to the different voltage outputs of three-phase AC line, the input end of transformer 4 for example can be accepted 1140 volts input voltage or 660 volts input voltage.Can correspondingly adjust transformer 4, make it be output as 36 volts.
Preferably, the first wiring point A, the second wiring point B, the 3rd wiring point C can be fixed on the switch load side joint terminal.
Adopt like the described leak(age) test device of the utility model, simplified the operation of doing distant place leak(age) test, make it more convenient to operate.This leak(age) test device action is sensitive, and is safe and reliable, and the test figure result can guarantee comparatively accurate.
Those skilled in the art will also be appreciated that the protection domain of the utility model is not limited in the foregoing description, and all equivalents to the utility model all drop in the scope of the utility model.
Claims (6)
1. leak(age) test device; It is characterized in that; In this leak(age) test device; First wiring point in the three-phase circuit and second wiring point insert the two ends of the input side of transformer respectively, and the outgoing side of this transformer and duplex button, contactor form the series circuit loop, and the 3rd wiring point in the three-phase circuit inserts the earth through the normally opened contact of contactor.
2. leak(age) test device according to claim 1 is characterized in that, first fuse is set on the connection line between first wiring point and the transformer.
3. leak(age) test device according to claim 2 is characterized in that, second fuse is set on the connection line between second wiring point and the transformer.
4. leak(age) test device according to claim 1 is characterized in that, on the connection line between the 3rd wiring point and the earth, current-limiting resistance is set.
5. leak(age) test device according to claim 1 is characterized in that, transformer and contactor all are fixed in the anti-explosion terminal box, and three-phase circuit is drawn from this anti-explosion terminal box.
6. leak(age) test device according to claim 5 is characterized in that, first wiring point, second wiring point, the 3rd wiring point are fixed on the switch load side joint terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205135026U CN202351403U (en) | 2011-12-09 | 2011-12-09 | Electric leakage testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205135026U CN202351403U (en) | 2011-12-09 | 2011-12-09 | Electric leakage testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351403U true CN202351403U (en) | 2012-07-25 |
Family
ID=46540399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205135026U Expired - Lifetime CN202351403U (en) | 2011-12-09 | 2011-12-09 | Electric leakage testing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202351403U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101574A1 (en) * | 2012-12-26 | 2014-07-03 | Guo Chunping | Coal mine remote leakage test method and device |
-
2011
- 2011-12-09 CN CN2011205135026U patent/CN202351403U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101574A1 (en) * | 2012-12-26 | 2014-07-03 | Guo Chunping | Coal mine remote leakage test method and device |
| US9575109B2 (en) | 2012-12-26 | 2017-02-21 | Chunping Guo | Method and apparatus for remote coal mine leakage test |
| EA030501B1 (en) * | 2012-12-26 | 2018-08-31 | Чуньпин Го | Coal mine remote leakage test method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |