CN2413372Y - High-tension sulfur hexafluoride load switch - Google Patents
High-tension sulfur hexafluoride load switch Download PDFInfo
- Publication number
- CN2413372Y CN2413372Y CN 00227761 CN00227761U CN2413372Y CN 2413372 Y CN2413372 Y CN 2413372Y CN 00227761 CN00227761 CN 00227761 CN 00227761 U CN00227761 U CN 00227761U CN 2413372 Y CN2413372 Y CN 2413372Y
- Authority
- CN
- China
- Prior art keywords
- load switch
- sulfur hexafluoride
- high pressure
- switch
- distance
- 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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- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to a high-tension sulfur hexafluoride load switch, which comprises a case shell, a load switch body, a contact system and an operating system. The body is provided with a gas pressure meter SF6, an observation window, a charge valve and light holes, and a projecting lamp is arranged outside the light holes; a big creep distance dabber is adopted at the terminal; a grading shield with an insulating layer is adopted at the inlet and outlet terminal; the three-station structure causes the capacity of the earthing switch closing the short-circuit current to reach the national standard; the phase distance is 210 mm. When working, the load switch can read the gas pressure of internal S F6 and observe the working position of the contact to ensure safety; meanwhile, the load switch can replenish S F6 gas during working, and the phase distance, the interphase distance and the relative creepage distance are in accordance with domestic standards.
Description
The utility model relates to a kind of high pressure sulfur hexafluoride on-load switch, relates in particular to a kind of High-Voltage Electrical Appliances sulphur hexafluoride on-load switch of urban network restructuring and construction and switch cubicle of fuse combination of being applicable to.
Current high voltage load switch is commonly used to sulphur hexafluoride (SF6) on-load switch, it is generally by shell, load switch body, composition such as contact system and operating mechanism, contact system is installed and is full of sulphur hexafluoride (SF6) gas in the load switch body of sealing, dynamic/static contact divides fashionable generation electric arc, electric arc permanent-magnetic field through interior dress under the pulling of moving contact makes its rotation, dissociate and cool off rapidly and go by SF6 gas, electric arc is extinguished when current over-zero, on the basis of on-load switch, increase high-voltage and current-limitation fuse and mount pad and tripping system thereof and promptly form switch-fuse combination.
Nearly ten years, the release one after another sulphur hexafluoride on-load switch of different structure and moulding of external many companies, but since external technical standard and running environment with in state-owned bigger difference, so all there are many problems in these products during use in the electrical network at home, specifically have the following:
1) owing on the high pressure SF6 load switch body of sealing, is not provided with the SF6 gas gauge, switch can't be understood the pressure of SF6 gas in the on-load switch when running status, be difficult to judge the built-in electrical insulation intensity of on-load switch and the requirement whether connecting-disconnecting function satisfies safe operation, can not guarantee the switch safe operation;
2) on the high pressure SF6 load switch body of sealing, there is not observation window, can not under the switch running status, clearly see the service position or the contact condition of contact in the switch, can not under the charging operation state, observe the service position of on-load switch moving contact intuitively, can not recognize particularly whether moving contact is in the isolated location, thereby can not guarantee operations staff's safety operation;
3) spaced apart, creepage distance alternate and relatively do not meet national standard, and the spaced apart that offshore company is used for the high pressure SF6 on-load switch of 10kV grade is 200mm, and relatively creepage distance is less than 230mm;
What 4) the SF6 on-load switch adopted is two station structures, and earthed switch adopts external air insulation earthed switch, and earthed switch closes the ability of closing short circuit current and do not reach national standard, and bulky, dress cabinet inconvenience;
5) conveniently do not inflate interface, at on-load switch just in case when minute leakage occurring and causing the SF6 gas pressure not enough, guarantee safety thereby can not under running status, supply fast.
First purpose of the present utility model just provides a kind of high pressure sulfur hexafluoride on-load switch that can understand SF6 gas pressure in the switch when switch moves at a glance.
Second purpose of the present utility model is exactly on the basis of above-mentioned on-load switch, provides a kind of and can clearly see the service position of contact in the switch or the high pressure sulfur hexafluoride on-load switch of contact condition.
For realizing above-mentioned first purpose, high pressure sulfur hexafluoride on-load switch of the present utility model has been taked following technical measures:
High pressure sulfur hexafluoride on-load switch of the present utility model comprises cabinet shell, load switch body, contact system, operating system, it is characterized in that: the sulfur hexafluoride gas Pressure gauge is installed on load switch body.
Described sulfur hexafluoride gas Pressure gauge is the two display types of numeral and colour code.
For realizing second purpose, on above-mentioned basis, an observation window is installed on load switch body.
Described observation window can be perforate on body, and the external end in hole has the straight tube of transparent material sealing, or perforate on body, hole are sealed with transparent material.
On the basis of above-mentioned switch cubicle, the utility model also can further improve: 1) be provided with the loophole assembly on body, it is perforate and with transparent material sealing on body, is provided with shot-light outside loophole; 2) spaced apart of on-load switch shell is changed into 210mm; 3) terminals adopt the large distance reinforcement; 4) the turnover line end adopts the grading shield of tape insulation layer; 5) on body, be equiped with the charge valve of quick plugging/unplugging device; 6) adopt three station structures, make the earthed switch pass close the short circuit current ability and be up to state standards (20kA/2s), dwindle volume of switch.
After having taked above-mentioned technical measures, high pressure sulfur hexafluoride on-load switch of the present utility model, but when operation, both read to intuitive and convenient inner SF6 gas pressure, guaranteed the switch safe operation, and can make things convenient for service position and the contact condition of clearly seeing inside contact, guarantee operations staff's safety operation, simultaneously, also can when on-load switch moves, replenish safe and efficiently SF6 gas, the operation more safe and reliable, volume is little, the dress cabinet is convenient, spaced apart, alternate and relatively creepage distance meet domestic standard.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 looks schematic diagram for master of the present utility model;
Fig. 2 is along Fig. 1. the sectional drawing of A-A line;
Can see from Fig. 1 and Fig. 2, the high pressure sulfur hexafluoride on-load switch of the utility model embodiment, comprise cabinet shell 1, load switch body 2, (contact system, operating system is enclosed in the load switch body and does not draw) be installed in numeral on the load switch body and the two display type sulfur hexafluoride gas Pressure gauges 3 of colour code, straight barrel type observation window 4, be located at the body below, direct pouring is in the loophole assembly 5 of body, dead ahead outside loophole is installed miniature long-lived shot-light 6 and is made radiation source, loophole assembly 7 in the positive casting of body, loophole assembly 5 and 7 is for to cast out circular hole 8 at the body top-pour, the hole is with clear glass 9 sealings and fastening with end cap, reinforcement 10 is arranged between the terminals 13, the turnover line end adopts the grading shield 11 of tape insulation layer, the charge valve 12 that possesses quick plugging/unplugging device also is housed on body, simultaneously, the time just the spaced apart 14 of SF6 on-load switch shell is changed into 210mm in design, straight barrel type observation window 4 is one to terminate at loophole assembly 7, the other end also is the cylinder that the clear glass sealing is arranged.
The two SF6 gas gauges that show of numeral and colour code are embedded in cabinet shell front, SF6 gas pressure value in the energy intuitive and convenient ground read switch, the SF6 gas pressure size in the on-load switch be can under the charging operation state, grasp intuitively, thereby the built-in electrical insulation intensity of on-load switch and the requirement whether connecting-disconnecting function satisfies safe operation judged; Long-lived shot-light 6 and loophole assembly 5,7, the light that shot-light is injected in the load switch body chamber reflects again, and by the positive straight barrel type observation window of installing of cabinet shell, just can under the charging operation state, observe the service position of on-load switch moving contact intuitively, particularly understand moving contact and whether be in the isolated location, thereby guarantee handling safety, charge valve with quick plugging/unplugging device makes high pressure sulfur hexafluoride on-load switch of the present utility model tonifying Qi fast under running status, and charge valve has tight hermetically-sealed construction to guarantee that charge valve does not leak.
Claims (9)
1, a kind of high pressure sulfur hexafluoride on-load switch comprises load switch body, it is characterized in that: the sulfur hexafluoride gas Pressure gauge is installed on the described load switch body.
2, according to the high pressure sulfur hexafluoride on-load switch of claim 1, it is characterized in that: described sulfur hexafluoride gas Pressure gauge is numeral and the two display types of colour code.
3, according to the high pressure sulfur hexafluoride on-load switch of claim 1, it is characterized in that: on the described load switch body observation window is housed.
4, according to the high pressure sulfur hexafluoride on-load switch of claim 3, it is characterized in that: described observation window is perforate on body, and the external end in hole has the straight tube of transparent material sealing.
5, according to the high pressure sulfur hexafluoride on-load switch of claim 3, it is characterized in that: seal with transparent material for perforate on body, hole at described observation window.
6, according to the high pressure sulfur hexafluoride on-load switch of claim 3, it is characterized in that: described body is provided with the loophole assembly, and it is perforate and with transparent material sealing on body, is provided with shot-light outside loophole.
7, according to the high pressure sulfur hexafluoride on-load switch of claim 3, it is characterized in that: described body is provided with reinforcement.
8, according to the high pressure sulfur hexafluoride on-load switch of claim 3, it is characterized in that: described body is provided with grading shield.
9, according to the high pressure sulfur hexafluoride on-load switch of claim 3, it is characterized in that: described body is provided with the fast aeration valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00227761 CN2413372Y (en) | 2000-04-05 | 2000-04-05 | High-tension sulfur hexafluoride load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00227761 CN2413372Y (en) | 2000-04-05 | 2000-04-05 | High-tension sulfur hexafluoride load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2413372Y true CN2413372Y (en) | 2001-01-03 |
Family
ID=33591346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00227761 Expired - Fee Related CN2413372Y (en) | 2000-04-05 | 2000-04-05 | High-tension sulfur hexafluoride load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2413372Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013644A (en) * | 2010-11-15 | 2011-04-13 | 国网电力科学研究院武汉南瑞有限责任公司 | Air-insulated switching device used for controlling inner electric field |
| CN102324348A (en) * | 2011-09-20 | 2012-01-18 | 北京科锐配电自动化股份有限公司 | Fuse cylinder |
-
2000
- 2000-04-05 CN CN 00227761 patent/CN2413372Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013644A (en) * | 2010-11-15 | 2011-04-13 | 国网电力科学研究院武汉南瑞有限责任公司 | Air-insulated switching device used for controlling inner electric field |
| CN102324348A (en) * | 2011-09-20 | 2012-01-18 | 北京科锐配电自动化股份有限公司 | Fuse cylinder |
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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: GUANGZHOU BAI YUN ELECTRIC DEVICE CO., LTD. Free format text: FORMER OWNER: BAIYUN ELECTRICAL EQUIPMENT PLANT, GUANGZHOU Effective date: 20050624 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050624 Address after: 510540 Guangzhou 1 private technology park, Taihe Guangzhou Town, Baiyun District, Guangdong, Guangzhou 863 industrialization promotion center, 214 to 5 Patentee after: Guangzhou Baiyun Electric Equipment Co., Ltd. Address before: 510460 Industrial Zone, Kamiyama Town, Guangzhou, Guangdong Patentee before: Baiyun Electrical Equipment Plant, Guangzhou |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |