CN203406203U - Blow-out coil used for load switch - Google Patents
Blow-out coil used for load switch Download PDFInfo
- Publication number
- CN203406203U CN203406203U CN201320437939.5U CN201320437939U CN203406203U CN 203406203 U CN203406203 U CN 203406203U CN 201320437939 U CN201320437939 U CN 201320437939U CN 203406203 U CN203406203 U CN 203406203U
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- CN
- China
- Prior art keywords
- load switch
- coil
- pom
- housing
- blow
- 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
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a blow-out coil used for a load switch. The blow-out coil comprises a POM housing, coils, and inner rings. The coils and the inner rings are disposed in the POM housing, and the inner rings compress the coils on an inner side wall of the POM housing. An end of the coil is provided with a CuW80 wire, and the other end passes through the POM housing and is pressed in a groove on the back of the POM housing, and the end of the coil is communicated with a main bus-bar of the load switch. Thus, the blow-out coil is disposed behind a moving contact of the load switch, and after the load switch is switched off, current of electric arc establishes a magnetic field through the coils, and under the action of a magnetic field, the arc rotates rapidly and is extinguished at a zero point of alternating current, thereby preventing a contact from being burnt caused by continuous arc between the moving contact and a fixed contact of the load switch and ensuring stability of the load switch. Service life of the blow-out coil is long.
Description
Technical field
The utility model belongs to electrical network equipment for power transmission and distribution technical field, relates to a kind of Petersen coil for on-load switch.
Background technology
At present, all can applied load switch in electrical network equipment for power transmission and distribution, to complete " closing ", " dividing " function; But existing on-load switch is when cut-offfing on market, between moving contact and fixed contact, often produce lasting electric arc, easily by contact burning, useful life is short, and stable service behaviour cannot ensure.
Utility model content
For solving the above-mentioned problems in the prior art, the utility model provide a kind of can be after on-load switch cut-offs, electric arc is rotated fast and extinguish when 0 of alternating current, avoid electric arc to continue and cause contact burning, guarantee the stability of on-load switch, the Petersen coil for on-load switch of long service life.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
For a Petersen coil for on-load switch, include POM housing, coil and inner ring, described coil and inner ring are located in described POM housing, and described inner ring is pressed on described coil in the inside side walls of described POM housing; One end of described coil is provided with CuW80 the end of a thread, and the other end is through described POM housing and compress into the groove that the back of described POM housing is provided with, and with the main bus bar UNICOM of on-load switch.
Further, described coil is made by the copper wire of diameter 1.2mm.
Further, the D.C. resistance of described coil is 0.505 ohm; When input voltage frequency is 1000Hz, the inductance of described coil is 38.7mH, and Q value is 2.167; When input voltage frequency is 100Hz, the inductance 0.7mH of described coil, Q value is 0.207.
The beneficial effects of the utility model are:
The utility model passes through technique scheme, can be after on-load switch cut-offs, the electric current of electric arc is set up magnetic field by coil, electric arc is under the effect in magnetic field, rotation fast is also extinguished when 0 of alternating current, avoid producing sustained arc and causing contact burning between the moving contact of on-load switch and fixed contact, guarantee the stability of on-load switch, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Petersen coil embodiment for on-load switch described in the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in fig. 1:
A kind of Petersen coil for on-load switch described in the utility model embodiment, includes POM housing 1, coil 2 and inner ring 3, and described coil 2 and inner ring 3 are located in POM housing 1, and inner ring 3 is pressed on coil 2 in the inside side walls of POM housing 1; Wherein, described coil 2 is made by the copper wire of diameter 1.2mm, totally 23 enclose, the D.C. resistance of described coil 2 is 0.505 ohm, one end of described coil 2 is provided with CuW80 the end of a thread 4, the other end is through POM housing 1 and compress into the groove that the back of POM housing 1 is provided with, and with main bus bar 5 UNICOMs of on-load switch; When input voltage frequency is 1000Hz, the inductance of coil 2 is 38.7mH, and Q value is 2.167; When input voltage frequency is 100Hz, the inductance 0.7mH of coil 2, Q value is 0.207.
During use, Petersen coil described in the utility model is located at after the moving contact of on-load switch, after on-load switch cut-offs, because the main bus bar of on-load switch 5 communicates with one end of coil 2, electric arc between another termination priming fixed contact, the electric current of electric arc is set up magnetic field by coil 2, electric arc is under the effect in magnetic field, rotation fast is also extinguished when 0 of alternating current, avoid producing sustained arc and causing contact burning between the moving contact of on-load switch and fixed contact, guarantee the stability of on-load switch, long service life.
The above is preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications are also considered as protection range of the present utility model.
Claims (3)
1. the Petersen coil for on-load switch, it is characterized in that: include POM housing (1), coil (2) and inner ring (3), described coil (2) and inner ring (3) are located in described POM housing (1), and described inner ring (3) is pressed on described coil (2) in the inside side walls of described POM housing (1); One end of described coil (2) is provided with CuW80 the end of a thread (4), and the other end is through described POM housing (1) and compress into the groove that the back of described POM housing (1) is provided with, and with main bus bar (5) UNICOM of on-load switch.
2. the Petersen coil for on-load switch according to claim 1, is characterized in that: described coil (2) is made by the copper wire of diameter 1.2mm.
3. the Petersen coil for on-load switch according to claim 1 and 2, is characterized in that: the D.C. resistance of described coil (2) is 0.505 ohm; When input voltage frequency is 1000Hz, the inductance of described coil (2) is 38.7mH, and Q value is 2.167; When input voltage frequency is 100Hz, the inductance 0.7mH of described coil (2), Q value is 0.207.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320437939.5U CN203406203U (en) | 2013-07-19 | 2013-07-19 | Blow-out coil used for load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320437939.5U CN203406203U (en) | 2013-07-19 | 2013-07-19 | Blow-out coil used for load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406203U true CN203406203U (en) | 2014-01-22 |
Family
ID=49942127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320437939.5U Expired - Fee Related CN203406203U (en) | 2013-07-19 | 2013-07-19 | Blow-out coil used for load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203406203U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981390A (en) * | 2016-01-19 | 2017-07-25 | 欧玛嘉宝（珠海）开关设备有限公司 | A kind of gas-insulated arc-control device |
| CN111564333A (en) * | 2020-05-26 | 2020-08-21 | 珠海市实创智能电气有限公司 | Spring operating mechanism of pole-mounted switch |
-
2013
- 2013-07-19 CN CN201320437939.5U patent/CN203406203U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981390A (en) * | 2016-01-19 | 2017-07-25 | 欧玛嘉宝（珠海）开关设备有限公司 | A kind of gas-insulated arc-control device |
| CN111564333A (en) * | 2020-05-26 | 2020-08-21 | 珠海市实创智能电气有限公司 | Spring operating mechanism of pole-mounted switch |
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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: 20140122 Termination date: 20140719 |
|
| EXPY | Termination of patent right or utility model |