CN201796743U - Fixed contact of an indoor high-voltage AC ground switch - Google Patents
Fixed contact of an indoor high-voltage AC ground switch Download PDFInfo
- Publication number
- CN201796743U CN201796743U CN2010202906130U CN201020290613U CN201796743U CN 201796743 U CN201796743 U CN 201796743U CN 2010202906130 U CN2010202906130 U CN 2010202906130U CN 201020290613 U CN201020290613 U CN 201020290613U CN 201796743 U CN201796743 U CN 201796743U
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- Prior art keywords
- contact
- fixed contact
- ground switch
- voltage
- earthed switch
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Abstract
The utility model discloses a fixed contact of an indoor high-voltage AC ground switch. The fixed contact (1) adopts an I-shaped structure; a plane surface at the upper end is in contact with a bus; and two side surfaces at the lower end are in contact with a ground switch (2). The contact property of the fixed contact (1) and the ground switch (2) is changed from line contact into face to face contact, so that the contact area of the fixed contact and the ground switch is increased, and heavier short circuit current can pass through.
Description
Technical field
The utility model belongs to and relates to a kind of earthed switch, and is special relevant with the indoor HVAC earthed switch.
Background technology
In the electric power power transmission and transforming equipment, the indoor HVAC earthed switch is supporting with high-tension switch cabinet, makes the network artificial earthing when overhauling as high-voltage electrical equipment, guarantees that the maintainer exempts from the visual plant of Danger Electric shock risk.Fixed contact is one of critical piece of earthed switch energising, needs to sustain the short circuit current that passes through, so the quality of fixed contact directly has influence on the electric property of earthed switch.The fixed contact of existing JN15 type earthed switch is a T type structure, and last transverse plane contacts with bus, and vertical two sides include the circular arc projection, and the circular arc projection contacts with the ground connection cutter.This contact property belongs to " line " contact, and the shortcoming of fixed contact is that the processing technology difficulty is big, and is smaller with the contact area of ground connection cutter, can not pass through bigger short circuit current.
The utility model content
The purpose of this utility model is that a kind of contact area with the ground connection cutter of design is big, the fixed contact of the indoor HVAC earthed switch of convenient processing.
The technical solution of the utility model is, a kind of fixed contact of indoor HVAC earthed switch is characterized in that, fixed contact is for falling I-shaped structure.
The utility model provides the fixed contact of indoor HVAC earthed switch, and last transverse plane contacts with bus, and the two sides, lower end contact with the ground connection cutter.Fixed contact is contacted by original " line " with ground connection cutter contact property and has become contacting of " face and face " like this, has increased contact-making surface, can pass through bigger short circuit current.
Description of drawings
Fig. 1 is the structural representation of the fixed contact of existing indoor HVAC earthed switch;
Fig. 2 is the structural representation of first embodiment of stationary contact of the utility model indoor HVAC earthed switch.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Among the figure: 1, fixed contact 2, ground connection cutter 3, stage clip 4, post insulator
As shown in Figure 2, the fixed contact 1 of the utility model indoor HVAC earthed switch is for falling I-shaped structure.
Transverse plane contacts with bus on the fixed contact 1 of this indoor HVAC earthed switch, the two sides, lower end contact with ground connection cutter 2, fixed contact 1 is contacted by original " line " with ground connection cutter 2 contact properties and has become contacting of " face and face ", increase the contact area of fixed contact and ground connection cutter, can pass through bigger short circuit current.
Claims (1)
1. the fixed contact of an indoor HVAC earthed switch is characterized in that: fixed contact (1) is for falling I-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202906130U CN201796743U (en) | 2010-08-13 | 2010-08-13 | Fixed contact of an indoor high-voltage AC ground switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202906130U CN201796743U (en) | 2010-08-13 | 2010-08-13 | Fixed contact of an indoor high-voltage AC ground switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201796743U true CN201796743U (en) | 2011-04-13 |
Family
ID=43851645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202906130U Expired - Fee Related CN201796743U (en) | 2010-08-13 | 2010-08-13 | Fixed contact of an indoor high-voltage AC ground switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201796743U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903559A (en) * | 2012-10-31 | 2013-01-30 | 镇江华驰电器有限公司 | Earthing switch |
| CN107785206A (en) * | 2017-11-10 | 2018-03-09 | 河南森源电气股份有限公司 | A kind of earthed switch and its contact assembly and contact |
| CN110137019A (en) * | 2019-06-28 | 2019-08-16 | 瓯越电力科技有限公司 | A kind of movable touch knife device and its disconnecting switch |
-
2010
- 2010-08-13 CN CN2010202906130U patent/CN201796743U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102903559A (en) * | 2012-10-31 | 2013-01-30 | 镇江华驰电器有限公司 | Earthing switch |
| CN102903559B (en) * | 2012-10-31 | 2015-05-20 | 镇江华驰电器有限公司 | Earthing switch |
| CN107785206A (en) * | 2017-11-10 | 2018-03-09 | 河南森源电气股份有限公司 | A kind of earthed switch and its contact assembly and contact |
| CN110137019A (en) * | 2019-06-28 | 2019-08-16 | 瓯越电力科技有限公司 | A kind of movable touch knife device and its disconnecting 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: 20110413 Termination date: 20150813 |
|
| EXPY | Termination of patent right or utility model |