CN2406332Y - High-voltage current-limitted fuse for protection of voltage mutual-inductor - Google Patents
High-voltage current-limitted fuse for protection of voltage mutual-inductor Download PDFInfo
- Publication number
- CN2406332Y CN2406332Y CN 99256108 CN99256108U CN2406332Y CN 2406332 Y CN2406332 Y CN 2406332Y CN 99256108 CN99256108 CN 99256108 CN 99256108 U CN99256108 U CN 99256108U CN 2406332 Y CN2406332 Y CN 2406332Y
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- China
- Prior art keywords
- voltage
- porcelain tube
- cap
- model
- utility
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- 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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- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 13
- 239000006004 Quartz sand Substances 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 230000004927 fusion Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 229910000990 Ni alloy Inorganic materials 0.000 abstract 1
- 206010040844 Skin exfoliation Diseases 0.000 abstract 1
- 230000035618 desquamation Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Fuses (AREA)
Abstract
The utility model relates to a current limiting fuse for protecting a voltage mutual inductor, which comprises a porcelain tube, the both ends of which are respectively pressed with an inner cap. A fusion body is arranged between the two inner caps in the porcelain tube. Contact heads are respectively pressed and assembled outside the two inner caps. The porcelain tube is filled with sufficient quantum quartz sand. The fusion body is formed by that nickel alloy wires with unequal sectional areas are wound in a desquamation spiral mode, and is directly connected with the two inner caps. The utility model has the advantages of favorable technical performance, small volume, light weight, advanced fabrication process, etc. The utility model and the voltage mutual inductor can be compounded and made into integration.
Description
The utility model relates to the high-tension electrical equipment original paper of a kind of protection, particularly a kind of high tension instrument transformer protection current limiting fuse.
Patent application CN 97239841.4 discloses the fuse of a kind of voltage transformer protection usefulness, and it is little, in light weight to have a volume; time-current chracteristic is stable, and current limiting characteristic are remarkable, and temperature is low; characteristics such as power consumption is little have existed many shortcomings, first in process for making; it is coarse that three sections melts connect technology, and the second, pressure cap and porcelain tube sealing are bad; the 3rd; configuration one porcelain knob in the fusion tube, technology is loaded down with trivial details in the mill, and product cost is higher.
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art, has proposed a kind of high tension instrument transformer protection current limiting fuse.
Fig. 1 is a structure principle chart of the present utility model.
Fig. 2 is a melt structure schematic diagram of the present utility model.
Fig. 3 is the structure principle chart of interior cap (1) of the present utility model, and wherein (a) is vertical view, (b) is positive view.
Below in conjunction with accompanying drawing structural principle of the present utility model and operation principle are done to say in detail Bright.
Referring to accompanying drawing 1,2, the utility model comprises a porcelain tube 2, dispose melt 3 in the porcelain tube 2, the nickel wire alloy tread flaking helically coiling moulding that melt 3 is not waited by the cross section, on melt 3, ward off low-melting alloy and played the effect of " M " effect, to improve interrupting performance to the overload fault electric current, wherein L1 equates with the L3 sectional area, and the L2 sectional area passes porcelain tube 2 less than the sectional area of adjacent both ends with melt 3, in hanging and being wrapped on cap 1 two ends and add soldering and sealing, after earlier an end contact 5 being press-fited then, the quartz sand 4 that proportioning is good pours into from porcelain tube 2 other ends, after enriching, press-fit contact 5 again, seal and finish.The operation principle of this product in circuit is to be connected in the circuit of protected electrical equipment, and when overload or short trouble took place circuit, electric current increased in the circuit, makes the melt intensification fusing disjunction of fuse, thereby reaches protection electrical equipment purpose.With reference to Fig. 3, interior cap 1 comprises one " U " shape cap body 6, and the top of cap body 6 has a groove 7, has a hook 8 below the groove 7.In when assembling, be wrapped on the hook 8 after an end of melt 3 walked around groove 7, will link up with 8 then and flatten, tightly with the welding rod weldering.
Main technical detail of the present utility model:
Rated voltage: 3.6Kv～40.5Kv, rated current: 0.5Kv～3.15A, specified drop-out current 50KA, frequency: 50～60Hz.
The product design size:
3.6Kv, 7.2Kv, 10Kv be 25 * 195 millimeters, 40.5Kv is 25 * 465 millimeters.
The utlity model has following characteristics:
(1) tight fit system replaces present silicon rubber, obtains good sealing effectiveness;
(2) melt adopts tread flaking helically coiling method to the suction electric arc that goes out, and has reduced product cost, has improved product quality, has simplified manufacturing process.
The utility model has on technical performance that breaking capacity height, disjunction are active in one's movements, current limiting capacity significantly, the time-current chracteristic error is little, temperature is low, power consumption is little characteristic, have also simultaneously that exterior design is refining, volume is little, in light weight, manufacturing process is advanced, can with the compound advantage such as one that is fabricated to of voltage transformer, changed old product RN2-10kv indoor high-voltage current limiting fuse technical performance instability, made shortcomings such as the assembly technology means fall behind.
Claims (3)
1, voltage transformer protection high-voltage and current-limitation fuse; comprise a porcelain tube (2); the two ends of porcelain tube (2) are pressed with interior cap (1) respectively; between the two interior caps (1) melt (3) is housed in the porcelain tube (2); dispose contact (5) outside the cap in two (1) respectively, fill capacity quartz sand in the porcelain tube (2), it is characterized in that; melt (3) is formed with the tread flaking helically coiling by the nickel wire alloy that sectional area does not wait, and directly is connected with cap (1) in two.
2, high-voltage and current-limitation fuse is used in voltage transformer protection according to claim 1, it is characterized in that, said interior cap (1) is fitted in the contact (5), and becomes tight fit with contact (5).
3, high-voltage and current-limitation fuse use in voltage transformer according to claim 1 protection, it is characterized in that, said in cap (1) comprise one " U " shape cap body (6), the top of cap body (6) has a groove (7), has one to link up with (8) below the groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256108 CN2406332Y (en) | 1999-12-23 | 1999-12-23 | High-voltage current-limitted fuse for protection of voltage mutual-inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99256108 CN2406332Y (en) | 1999-12-23 | 1999-12-23 | High-voltage current-limitted fuse for protection of voltage mutual-inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406332Y true CN2406332Y (en) | 2000-11-15 |
Family
ID=34039322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99256108 Expired - Fee Related CN2406332Y (en) | 1999-12-23 | 1999-12-23 | High-voltage current-limitted fuse for protection of voltage mutual-inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406332Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098712A (en) * | 2015-08-25 | 2015-11-25 | 国家电网公司 | Protection equipment for 6-35kV power grid voltage transformers |
| CN106981406A (en) * | 2017-05-18 | 2017-07-25 | 中国科学院合肥物质科学研究院 | KTX impulse capacitor fuses |
| CN108242374A (en) * | 2018-02-02 | 2018-07-03 | 西安交通大学 | A kind of band fixes the combined type DC fuse of fracture |
| CN111508796A (en) * | 2020-04-23 | 2020-08-07 | 南京萨特科技发展有限公司 | Controllable fuse, fuse assembly and control method |
-
1999
- 1999-12-23 CN CN 99256108 patent/CN2406332Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098712A (en) * | 2015-08-25 | 2015-11-25 | 国家电网公司 | Protection equipment for 6-35kV power grid voltage transformers |
| CN106981406A (en) * | 2017-05-18 | 2017-07-25 | 中国科学院合肥物质科学研究院 | KTX impulse capacitor fuses |
| CN108242374A (en) * | 2018-02-02 | 2018-07-03 | 西安交通大学 | A kind of band fixes the combined type DC fuse of fracture |
| CN111508796A (en) * | 2020-04-23 | 2020-08-07 | 南京萨特科技发展有限公司 | Controllable fuse, fuse assembly and control method |
| CN111508796B (en) * | 2020-04-23 | 2022-07-22 | 南京萨特科技发展有限公司 | Controllable fuse, fuse assembly and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CP03 | Change of name, title or address |
Address after: Xingqing road beishapo village 710048 Shaanxi city in Xi'an province Fu 18 northwest electric appliance manufacturing company Patentee after: Zhang Yi Address before: Xingqing road beishapo village in Shaanxi Province, Xi'an city to pay 18 Patentee before: Xi'an Northwest Electric Power Manufacturing Co. |
|
| 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 |