CN202662977U - Power supply knife switch box for electrical test - Google Patents
Power supply knife switch box for electrical test Download PDFInfo
- Publication number
- CN202662977U CN202662977U CN 201220230405 CN201220230405U CN202662977U CN 202662977 U CN202662977 U CN 202662977U CN 201220230405 CN201220230405 CN 201220230405 CN 201220230405 U CN201220230405 U CN 201220230405U CN 202662977 U CN202662977 U CN 202662977U
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- CN
- China
- Prior art keywords
- phase
- knife switch
- power supply
- disconnecting link
- electrical test
- Prior art date
- 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 - Fee Related
Links
- 230000001681 protective effect Effects 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 6
- 230000001012 protector Effects 0.000 abstract 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
A power supply knife switch box for an electrical test comprises a knife switch box shell, an insulating board, a power supply input terminal, a power supply output terminal, and a voltage indicating gauge, a leakage protector, two three-hole single-phase sockets, a three-phase knife switch and a light emitting diode (LED) indicator light which are arranged on the insulating board in the knife switch box shell, wherein the voltage indicating gauge is electrically connected with the power supply input terminal; the leakage protector is connected between the power supply input terminal and the three-phase knife switch; the three-hole single-phase sockets are connected between the three-phase knife switch and the leakage protector and respectively connected with an A phase and a B phase, so that the single-phase output is realized; the three-phase knife switch is directly connected with the power supply output terminal; and the LED indicator light is connected between the three-phase knife switch and the power supply output terminal. The three-wire four-phase power supply knife switch box is used for the electrical test and provided with the leakage protector, regulations on safety standard are fulfilled, the requirements for the test are met, and the power supply knife switch box is used conveniently and quickly and cannot be influenced by a test site.
Description
Technical field
The utility model relates to a kind of electric box, specifically a kind of electrical test power knife switch case.
Background technology
When equipment carried out electrical test, test apparatus need to access three phase mains, and particularly the deformation test of main transformer impedance method is quite high to the requirement of power supply, not only needs single phase poaer supply, also need three phase mains, and zero line can not disconnect.Company is very high to the requirement of electric source for test purposes case at present, must meet the safety regulation, and power wire coil does not in the market meet the power supply disks that electrical test requires, and needs autonomous the making to be with earth leakage protective device, plug-in strip, three-phase four-wire power disconnecting link power supply box.
The utility model content
The purpose of this utility model is to provide a kind of electrical test power knife switch case, and being used for provides a kind of safe, portable while can satisfy again the disconnecting link case of single phase poaer supply, three phase mains.
The technical scheme in the invention for solving the technical problem is: a kind of electrical test power knife switch case; comprise the disconnecting link tank shell; insulation board; power input and power output end; described power input and power output end all are installed on the insulation board; it is characterized in that; also comprise and be installed in the voltage dial gauge on the insulation board in the disconnecting link tank shell; earth leakage protective device; three hole single-phase sockets; three-phase disconnecting link; LED light; described voltage dial gauge is electrically connected with power input; earth leakage protective device of access between described power input and the three-phase disconnecting link; and access three hole single-phase sockets between three-phase disconnecting link and earth leakage protective device; the quantity of described three hole single-phase sockets is two; it is electric mutually with B to access respectively the A phase; realize the output of single-phase electricity; described three-phase disconnecting link directly links to each other with power output end, and accesses LED light between three-phase disconnecting link and power output end.
Described earth leakage protective device for can bear the 32A electric current earth leakage protective device,
Described three hole single-phase sockets are for bearing three hole single-phase sockets of 10A electric current.
Described three-phase disconnecting link can bear the 30A electric current.
The beneficial effects of the utility model are:
By making electrical test usefulness with three lines, the four phase power knife switch casees of earth leakage protective device, both met the regulation of safety, satisfy again the test demand, and easy to use, quick, be not subjected to on-the-spot impact.The key technical indexes is as follows:
1, earth leakage protective device Pass Test instrument service requirement allows electric current 32A;
2, plug-in strip has obvious cut-off point, and the band cover; Allow electric current 30A;
3, casing meets the field test security regulations;
4, simple and practical, easy to carry, lightweight.
Description of drawings
Fig. 1 is the layout plan of each electrical component on insulation board;
Fig. 2 is the electrical connection schematic diagram of each electrical component;
Embodiment
As shown in Figure 1 and Figure 2,
A kind of electrical test power knife switch case comprises disconnecting link tank shell and the insulation board that serial electric component is installed, and it is inner that this insulation board is fixed on the disconnecting link tank shell, and this structure with existing disconnecting link case is identical.
Be fixed with voltage dial gauge, earth leakage protective device, three hole single-phase sockets, three-phase disconnecting link, LED light, power input and power output end at insulation board, be three-phase, be respectively A phase, B phase, C phase, also have a zero line, be labeled as O.Contrast Fig. 2, the below is described according to order from left to right: power input is installed in the leftmost side of insulation board, three voltage dial gauges (250V) respectively three of corresponding A, B, C mutually electricity be electrically connected, be used for showing the voltage of three-phase electricity.
Earth leakage protective device of access between power input and the three-phase disconnecting link, this earth leakage protective device plays the function of overload protection.Access three hole single-phase sockets between three-phase disconnecting link and earth leakage protective device, the quantity of three hole single-phase sockets is two, accesses respectively A phase and B mutually, realizes the output of single-phase electricity.Three-phase disconnecting link directly links to each other with power output end, and between three-phase disconnecting link and power output end, access LED light (L1, L2, L3), can realize like this output of three-phase electricity, the state of all right display circuit of indicator light plays the effect of safety indication simultaneously.
The allocating method of the best of above-mentioned components and parts is: earth leakage protective device for can bear the 32A electric current earth leakage protective device, three hole single-phase sockets are for bearing three hole single-phase sockets of 10A electric current, three-phase disconnecting link can bear the 30A electric current.
Except the described technical characterictic of specification, be the known technology of those skilled in the art.
Claims (4)
1. electrical test power knife switch case; comprise the disconnecting link tank shell; insulation board; power input and power output end; described power input and power output end all are installed on the insulation board; it is characterized in that; also comprise and be installed in the voltage dial gauge on the insulation board in the disconnecting link tank shell; earth leakage protective device; three hole single-phase sockets; three-phase disconnecting link; LED light; described voltage dial gauge is electrically connected with power input; earth leakage protective device of access between described power input and the three-phase disconnecting link; and access three hole single-phase sockets between three-phase disconnecting link and earth leakage protective device; the quantity of described three hole single-phase sockets is two; two three hole single-phase sockets access respectively mutually electricity of A phase and B; described three-phase disconnecting link directly links to each other with power output end, and accesses LED light between three-phase disconnecting link and power output end.
2. a kind of electrical test power knife switch case according to claim 1 is characterized in that, described earth leakage protective device for can bear the 32A electric current earth leakage protective device,
3. a kind of electrical test power knife switch case according to claim 1 is characterized in that, described three hole single-phase sockets are for bearing three hole single-phase sockets of 10A electric current.
4. a kind of electrical test power knife switch case according to claim 1 is characterized in that described three-phase disconnecting link can bear the 30A electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230405 CN202662977U (en) | 2012-05-22 | 2012-05-22 | Power supply knife switch box for electrical test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230405 CN202662977U (en) | 2012-05-22 | 2012-05-22 | Power supply knife switch box for electrical test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202662977U true CN202662977U (en) | 2013-01-09 |
Family
ID=47457856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220230405 Expired - Fee Related CN202662977U (en) | 2012-05-22 | 2012-05-22 | Power supply knife switch box for electrical test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202662977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632246A (en) * | 2017-11-06 | 2018-01-26 | 国网辽宁省电力有限公司大连供电公司 | The integrated switched disconnecting link device of ac voltage withstanding experiment |
-
2012
- 2012-05-22 CN CN 201220230405 patent/CN202662977U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107632246A (en) * | 2017-11-06 | 2018-01-26 | 国网辽宁省电力有限公司大连供电公司 | The integrated switched disconnecting link device of ac voltage withstanding experiment |
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Legal Events
| 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: 20130109 Termination date: 20180522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |