CN204391025U - 35kV outdoor type voltage transformer high voltage fuse wiring end cap - Google Patents
35kV outdoor type voltage transformer high voltage fuse wiring end cap Download PDFInfo
- Publication number
- CN204391025U CN204391025U CN201520162388.5U CN201520162388U CN204391025U CN 204391025 U CN204391025 U CN 204391025U CN 201520162388 U CN201520162388 U CN 201520162388U CN 204391025 U CN204391025 U CN 204391025U
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- CN
- China
- Prior art keywords
- end cap
- fuse
- cap body
- wiring
- tube
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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 43
- 238000007789 sealing Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Abstract
The utility model discloses a kind of 35kV outdoor type voltage transformer high voltage fuse wiring end cap, described fuse comprises porcelain tube, fuse tube, spring and be assemblied in the wiring end cap at described porcelain tube both ends, described fuse tube is coaxially assemblied in porcelain tube, described spring is assemblied between wiring end cap and the end face of fuse tube, described wiring end cap comprises end cap body and end cap cover, described end cap body is generally in cirque structure, form by two semi-circular portion are involutory, the centre bore of end cap body is stepped hole, step small aperture is less than the external diameter of the flange of porcelain tube end, step macropore diameter is greater than the external diameter of flange, and the hole wall of step macropore is provided with internal thread, one end of described end cap cover is threaded with the step macropore of described end cap body.The utility model end cap cover is threaded with between end cap, simple and fast during installation, laborsaving convenience during replacing.
Description
Technical field:
The utility model relates to a kind of 35kV outdoor type voltage transformer high voltage fuse wiring end cap, specifically a kind of RW10-35/0.5 type voltage transformer high voltage fuse wiring end cap.
Background technology:
For being arranged on outdoor RW10-35/0.5 type 35kV outdoor type voltage transformer; find in long-time running work; during because of system exception or unit exception; this fuse can quick fuse; play the object of protection electric equipment; but; according to long-term O&M experience; when changing its high voltage fuse because its fuse operational environment is more severe; the wiring end cap screw corrosion of major part fuse is serious, causes and changes difficulty, because internal structure is special; needing when changing one or two staff to assist could change, causing taking a lot of work during replacing, time-consuming, require great effort.
Shown in Fig. 1, existing fuse has porcelain tube 1, fuse tube 2, spring 3 and wiring end cap 4, and porcelain tube 1 is similar to the shape of bellows, and fuse tube 2 is coaxially assemblied in porcelain tube 1, the two ends of porcelain tube 1 are equipped with wiring end cap 4, and spring is assemblied between the end face of wiring end cap 4 and fuse tube 2.Can find out in Fig. 1, the end, two ends of porcelain tube 1 has the outer eaves (can be referred to as flange) of the radial ring-type protruded, wiring end cap 4 is such with the assembling form of porcelain tube 1: the washer installing at least two panels arc inside the flange of porcelain tube 1, then several M6 screw 5 is adopted washer and wiring end cap to be linked together, in fact exactly the end flange 6 of porcelain tube 1 is clamped between arc washer and wiring end cap, its problem is, when after the blown fuse in fuse tube 2, just need to change fuse tube, and when the corrosion of M6 screw is serious, wiring end cap is difficult to remove, in addition, one or two staff's assistance are generally needed when wiring end cap being installed after changing fuse tube, because the washer of two panels arc and wiring end cap will be adopted M6 screw fixing is not an easy thing.
Summary of the invention:
For overcoming the defect of prior art, the purpose of this utility model is to provide a kind of 35kV outdoor type voltage transformer high voltage fuse wiring end cap, by transforming the wiring end cap part of RW10-35/0.5 type fuse, make the simple, quick of the more transformation of RN2-35/0.5A high voltage fuse, effectively reduce because the problem of replacing difficulty that seriously causes of the interface screw corrosion of fuse, what shorten grid equipment stops the labour time, ensures that power grid security runs reliably.
The utility model technical solution problem adopts following technical scheme:
35kV outdoor type voltage transformer high voltage fuse wiring end cap, described fuse comprises porcelain tube, fuse tube, spring and be assemblied in the wiring end cap at described porcelain tube both ends, described fuse tube is coaxially assemblied in porcelain tube, described spring is assemblied between wiring end cap and the end face of fuse tube, described wiring end cap comprises end cap body and end cap cover, described end cap body is generally in cirque structure, form by two semi-circular portion are involutory, the centre bore of end cap body is stepped hole, step small aperture is less than the external diameter of the flange of porcelain tube end, step macropore diameter is greater than the external diameter of flange, and the hole wall of step macropore is provided with internal thread, one end of described end cap cover is threaded with the step macropore of described end cap body.
One end that described end cap cover is connected with the step macropore of end cap body is medial extremity, and described medial extremity end face has the cavity volume holding described spring; The external diameter of end cap cover body is greater than the aperture of described step macropore to be formed closed to the inner chamber of end cap body; The bottom of end cap cover medial extremity end face cavity volume is provided with annular seal groove, is located at the sealing ring in described annular seal groove and is formed between the cavity volume bottom surface and the end face of porcelain tube end flange of end cap cover and seal; The end face integral type of end cap cover outboard end is provided with connector lug, and is provided with wiring hole on described connector lug.
On the outer wall of described end cap body, integral type is provided with multiple boss, described multiple boss is spaced apart along the circumferencial direction of end cap body, two semi-circular portion of end cap body are connected by the soket head cap screw be connected between boss, and part boss is provided with screwed hole for coordinating with afterburning screw rod.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1, the wiring end cap of the utility model electric power system RW10-35/0.5 type 35kV outdoor type voltage transformer high voltage fuse, be divided into two parts, end cap body part and porcelain tube are rotationally connected, and (end cap body can only rotate on porcelain tube, can not move axially along porcelain tube), be threaded between end cap cover with end cap, simple and fast during installation, laborsaving convenience during replacing.
2, only need carry the boosting-rod of ten centimeters long when the wiring end cap of the utility model electric power system RW10-35/0.5 type 35kV outdoor type voltage transformer high voltage fuse operates, simplify operation tool.
3, the mode of silk age of a draught animal rotating clutch is adopted to carry out between two parts of wiring end cap fastening, make behaviour more convenient, more laborsaving, ensure that the personal safety of operating personnel, also sealing ring is provided with between end cap body and end cap cover, formed between end face of flange and the bottom surface of end cap cover cavity volume and seal (namely having sealed up the inner chamber of porcelain tube), dust foreign matter can not enter porcelain tube inside, extends the useful life of fuse tube in porcelain tube.
Accompanying drawing illustrates:
Fig. 1 is the schematic diagram of existing fuse; Fig. 2 is the schematic diagram of the utility model fuse; Fig. 3 is the A portion enlarged drawing of Fig. 2; Fig. 4 is the two-part cooperation schematic diagram of the utility model wiring end cap; The front view of Fig. 5 end cap cover; Fig. 6 is the front view of end cap body; Fig. 7 is the schematic diagram with the boosting-rod of end cap body fits; Fig. 8 is the schematic diagram adopting boosting-rod operation wiring end cap.
Number in the figure: 1 porcelain tube, 2 fuse tubes, 3 springs, 4 wiring end caps, 5 is M6 screw, 6 flanges, 7 end cap bodies, 8 end cap covers, 9 seal grooves, 10 connector lugs, 11 wiring holes, 12 screwed holes, 13 boosting-rods.
Below by way of embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
Embodiment:
Embodiment: by reference to the accompanying drawings, the 35kV outdoor type voltage transformer high voltage fuse wiring end cap of the present embodiment, this fuse comprises porcelain tube 1, fuse tube 2, spring 3 and be assemblied in the wiring end cap at porcelain tube 1 both ends, fuse tube 2 is coaxially assemblied in porcelain tube 1, spring 3 is assemblied between the end face of wiring end cap and fuse tube 2, wiring end cap comprises end cap body 7 and end cap cover 8, end cap body 7 is generally in cirque structure, form by two semi-circular portion are involutory, the centre bore of end cap body is stepped hole, step small aperture is less than the external diameter of the flange of porcelain tube end, step macropore diameter is greater than the external diameter of flange, and the hole wall of step macropore is provided with internal thread, one end of end cap cover 8 is threaded with the step macropore of end cap body.
One end that end cap cover 8 is connected with the step macropore of end cap body is medial extremity, and medial extremity end face has the cavity volume holding spring; The external diameter of end cap cover body is greater than the aperture of step macropore to be formed closed to the inner chamber of end cap body; The bottom of end cap cover medial extremity end face cavity volume is provided with annular seal groove 9, is located at the sealing ring in annular seal groove 9 and is formed between the cavity volume bottom surface and the end face of porcelain tube end flange of end cap cover and seal; The end face integral type of end cap cover outboard end is provided with connector lug 10, and on connector lug, be provided with wiring hole 11.
On the outer wall of end cap body, integral type is provided with multiple boss, multiple boss is spaced apart along the circumferencial direction of end cap body, two semi-circular portion of end cap body are connected by the soket head cap screw be connected between boss, and part boss is provided with screwed hole 12 for coordinating with afterburning screw rod.
In concrete enforcement, shown in Fig. 7,8, two parts that end cap body 7 separates are socketed in porcelain tube 1 end and by two parts to forming overall end cap body altogether, couple together with sunk screw between two parts, aperture due to the step aperture of end cap body 7 is less than the external diameter of porcelain tube flange 6, therefore end cap body 7 can not take off from porcelain tube 1, again because the aperture of the step macropore of end cap body 7 is greater than the external diameter of flange 6, can flange (i.e. the end of porcelain tube) be contained in end cap body, stop dust, foreign matter etc. to enter in porcelain tube.Be threaded with end cap body by the medial extremity of end cap cover 8, the external diameter of end cap cover body is greater than the aperture of step macropore again, is therefore enclosed in the cavity volume between end cap body and end cap cover by flange (i.e. the end of porcelain tube), plays primary seal effect.Sealing ring bottom end cap cover medial extremity end face cavity volume is tightly pushed against the outer face of flange, is thoroughly sealed by end face of flange (i.e. the oral area of porcelain tube), can protect the fuse tube of porcelain tube inside.During assembling, boosting-rod 13 is tightened in the screwed hole 12 on the excircle of end cap body 7, the hand steered firmly end cap cover 8 of operative employee one, another hand rotates end cap body 7 by boosting-rod 13, and end cap body 7 just dallies on porcelain tube, therefore can be tightened on end cap body 7 by end cap cover 8, both connecting thread portions are sealed in the step macropore of end cap body, not easily corrosion, being convenient to the later stage takes off end cap cover, thus changes fuse tube; Moreover the outer end due to spring 3 is contained in the cavity volume of medial extremity end face of end cap cover 8, assembling end cap cover is when against the force of the spring, spring is not easily crooked to be jumped out, original wiring end cap of comparing, and it is easier to install, efficiency is higher, and a people can operate.
Claims (3)
1.35kV outdoor type voltage transformer high voltage fuse wiring end cap, described fuse comprises porcelain tube (1), fuse tube (2), spring (3) and be assemblied in the wiring end cap at described porcelain tube (1) both ends, described fuse tube (2) is coaxially assemblied in porcelain tube (1), described spring (3) is assemblied between the end face of wiring end cap and fuse tube (2), it is characterized in that, described wiring end cap comprises end cap body (7) and end cap cover (8), described end cap body (7) is generally in cirque structure, form by two semi-circular portion are involutory, the centre bore of end cap body is stepped hole, step small aperture is less than the external diameter of the flange of porcelain tube end, step macropore diameter is greater than the external diameter of flange, and the hole wall of step macropore is provided with internal thread, one end of described end cap cover (8) is threaded with the step macropore of described end cap body.
2. 35kV outdoor type voltage transformer high voltage fuse wiring end cap according to claim 1, it is characterized in that, one end that described end cap cover (8) is connected with the step macropore of end cap body is medial extremity, and described medial extremity end face has the cavity volume holding described spring; The external diameter of end cap cover body is greater than the aperture of described step macropore to be formed closed to the inner chamber of end cap body; The bottom of end cap cover medial extremity end face cavity volume is provided with annular seal groove (9), is located at the sealing ring in described annular seal groove (9) and is formed between the cavity volume bottom surface and the end face of porcelain tube end flange of end cap cover and seal; The end face integral type of end cap cover outboard end is provided with connector lug (10), and on described connector lug, be provided with wiring hole (11).
3. 35kV outdoor type voltage transformer high voltage fuse wiring end cap according to claim 1, it is characterized in that, on the outer wall of described end cap body, integral type is provided with multiple boss, described multiple boss is spaced apart along the circumferencial direction of end cap body, two semi-circular portion of end cap body are connected by the soket head cap screw be connected between boss, and part boss is provided with screwed hole for coordinating with afterburning screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520162388.5U CN204391025U (en) | 2015-03-20 | 2015-03-20 | 35kV outdoor type voltage transformer high voltage fuse wiring end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520162388.5U CN204391025U (en) | 2015-03-20 | 2015-03-20 | 35kV outdoor type voltage transformer high voltage fuse wiring end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204391025U true CN204391025U (en) | 2015-06-10 |
Family
ID=53363722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520162388.5U Expired - Fee Related CN204391025U (en) | 2015-03-20 | 2015-03-20 | 35kV outdoor type voltage transformer high voltage fuse wiring end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204391025U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551899A (en) * | 2016-02-26 | 2016-05-04 | 广东中贝能源科技有限公司 | Manufacturing technique of fuse integrated wiring terminal |
| CN110783155A (en) * | 2019-11-01 | 2020-02-11 | 国网天津市电力公司 | Outdoor 35kV voltage transformer high-voltage fuse terminal cap |
-
2015
- 2015-03-20 CN CN201520162388.5U patent/CN204391025U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551899A (en) * | 2016-02-26 | 2016-05-04 | 广东中贝能源科技有限公司 | Manufacturing technique of fuse integrated wiring terminal |
| CN110783155A (en) * | 2019-11-01 | 2020-02-11 | 国网天津市电力公司 | Outdoor 35kV voltage transformer high-voltage fuse terminal cap |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20190320 |