CN2884496Y - Structure for preventing heavy-current Dc isolating-switch from DC earth short circuit - Google Patents
Structure for preventing heavy-current Dc isolating-switch from DC earth short circuit Download PDFInfo
- Publication number
- CN2884496Y CN2884496Y CN 200620200131 CN200620200131U CN2884496Y CN 2884496 Y CN2884496 Y CN 2884496Y CN 200620200131 CN200620200131 CN 200620200131 CN 200620200131 U CN200620200131 U CN 200620200131U CN 2884496 Y CN2884496 Y CN 2884496Y
- Authority
- CN
- China
- Prior art keywords
- switch
- isolating switch
- short circuit
- isolating
- isolation switch
- 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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Abstract
The utility model discloses a structure that can prevent DC grounding short circuit in large current DC isolating switch. The structure comprises a DC isolating switch and its installation base in rectification unit; the DC isolating switch is arranged on the base through bolts and insulating gasket, and the DC isolating switch base is arranged on the grounded steel support of the rectification unit through the insulator. The utility model adds the supporting insulator under the DC isolating switch installation base, the space between the switch live part and the grounding steel support is enlarged, the isolating switch is far from the grounding steel support, even if the creepage short circuit occurs between the DC isolating switch live part and the installation base, the DC grounding short circuit through the steel support can not form because of the function of the insulator, so the safety of equipment and personnel are guaranteed.
Description
Technical field:
The utility model relates to a kind of structure that prevents heavy DC isolating switch direct current shorted to earth, particularly a kind of structure that prevents the heavy DC isolating switch direct current shorted to earth of electrolytic aluminium factory Rectification Power Factor.
Background technology:
At present, the dc bus outlet side in the electrolytic aluminium factory Rectification Power Factor is equipped with the DC-isolation switch, and the direct current when large-scale electrolysis aluminium manufacturer general work is 160～350KA, and direct voltage is 800～1600V.And in the prior art, when the DC-isolation switch is installed, only consider the Insulation Problems of DC-isolation switch to its mounting seat, therefore usually its mounting seat is directly installed on the ground connection steel bracket that is connected with the earth of Rectification Power Factor, and reckon without when there was dampness in the air, when dust is big, DC-isolation switch live part can produce creepage short circuit phenomenon to the connecting bolt of its mounting seat, and this connecting bolt is connected by ground connection steel bracket and the earth, cause the D.C. high-current shorted to earth, this not only can damage equipment, but also can damage the person.This kind accident is in operation and repeatedly takes place.
Summary of the invention:
The purpose of this utility model is: provide a kind of structure that prevents heavy DC isolating switch direct current shorted to earth of simple in structure, security of operation, to overcome the deficiencies in the prior art.
The utility model is to constitute like this: it comprises the DC-isolation switch (1) that Rectification Power Factor is connected with dc bus (6) and the mounting seat (2) of DC-isolation switch (1), DC-isolation switch (1) is installed on the mounting seat (2) of DC-isolation switch (1) by bolt and insulation cushion (3), it is characterized in that: the mounting seat (2) of DC-isolation switch (1) is installed on the ground connection steel bracket (5) that is connected with the earth of Rectification Power Factor by insulator (4).
Owing to adopted technique scheme, the utility model installs insulator additional under the mounting seat of DC-isolation switch, make distance increasing between switch live part and the ground connection steel bracket, dc switch is away from the ground connection steel bracket, even the dc switch live part takes place mounting seat is produced creepage short circuit, but because the effect of the insulator that increases can not form the direct current shorted to earth by the ground connection steel bracket yet, thereby equipment and personnel's safety is protected.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
Embodiment:
Embodiment of the present utility model: the method by prior art is connected the DC-isolation switch (1) of Rectification Power Factor earlier with dc bus (6), by bolt and insulation cushion (3) DC-isolation switch (1) is installed on the mounting seat (2) then, and install insulator (4) in the bottom surface of the mounting seat (2) of DC-isolation switch (1), the ground connection steel bracket (5) that is connected with the earth that insulator (4) is fixed on Rectification Power Factor is gone up.
Claims (1)
1. structure that prevents heavy DC isolating switch direct current shorted to earth, it comprises the DC-isolation switch (1) that Rectification Power Factor is connected with dc bus (6) and the mounting seat (2) of DC-isolation switch (1), DC-isolation switch (1) is installed on the mounting seat (2) of DC-isolation switch (1) by bolt and insulation cushion (3), it is characterized in that: the mounting seat (2) of DC-isolation switch (1) is installed on the ground connection steel bracket (5) that is connected with the earth of Rectification Power Factor by insulator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200131 CN2884496Y (en) | 2006-02-10 | 2006-02-10 | Structure for preventing heavy-current Dc isolating-switch from DC earth short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620200131 CN2884496Y (en) | 2006-02-10 | 2006-02-10 | Structure for preventing heavy-current Dc isolating-switch from DC earth short circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2884496Y true CN2884496Y (en) | 2007-03-28 |
Family
ID=37957549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620200131 Expired - Fee Related CN2884496Y (en) | 2006-02-10 | 2006-02-10 | Structure for preventing heavy-current Dc isolating-switch from DC earth short circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2884496Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101471551B (en) * | 2007-12-25 | 2011-11-09 | 贵阳铝镁设计研究院有限公司 | DC convergent current bus bar insulator bracket |
| CN102480240A (en) * | 2010-11-30 | 2012-05-30 | 沈阳铝镁设计研究院有限公司 | Insulation mounting structure of rectifier used in electrolytic industry |
| CN101760761B (en) * | 2008-12-23 | 2012-07-04 | 贵阳镁铝设计研究院有限公司 | Bus suction-resisting bracket |
-
2006
- 2006-02-10 CN CN 200620200131 patent/CN2884496Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101471551B (en) * | 2007-12-25 | 2011-11-09 | 贵阳铝镁设计研究院有限公司 | DC convergent current bus bar insulator bracket |
| CN101760761B (en) * | 2008-12-23 | 2012-07-04 | 贵阳镁铝设计研究院有限公司 | Bus suction-resisting bracket |
| CN102480240A (en) * | 2010-11-30 | 2012-05-30 | 沈阳铝镁设计研究院有限公司 | Insulation mounting structure of rectifier used in electrolytic industry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUIYANG ALUMINUM AND MAGNESIUM DESIGN INSTITUTE CO Free format text: FORMER OWNER: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. Effective date: 20110720 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 550004 NO. 208, BEIJING ROAD, GUIYANG CITY, GUIZHOU PROVINCE TO: 550081 NO.2, JINZHU ROAD, JINYANG NEW DISTRICT, GUIYANG CITY, GUIZHOU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110720 Address after: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Patentee after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550004 No. 208, Beijing Road, Guiyang, Guizhou Patentee before: Guiyang Aluminium and Magnesium Design Inst. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070328 Termination date: 20140210 |