CN205159080U - Outdoor voltage transformer subassembly of operatable type of fuse - Google Patents
Outdoor voltage transformer subassembly of operatable type of fuse Download PDFInfo
- Publication number
- CN205159080U CN205159080U CN201520940997.9U CN201520940997U CN205159080U CN 205159080 U CN205159080 U CN 205159080U CN 201520940997 U CN201520940997 U CN 201520940997U CN 205159080 U CN205159080 U CN 205159080U
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- fuse
- voltage transformer
- action bars
- manipulation type
- base
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Abstract
The utility model relates to an outdoor voltage transformer subassembly of operatable type of fuse for outdoor high voltage transmission lines's fault protection, including voltage transformer (1), fuse and action bars (3), fuse top and voltage transformer (1) through rotatory bayonet coupling, voltage transformer (1) is sent the fuse into through action bars (3) in fuse bottom and action bars (3) top swing joint, or takes out in with fuse follow voltage transformer (1) through action bars (3). Compared with the prior art, the utility model discloses voltage transformer is the insulating totally enclosed structure of epoxy resin casting, have resistant electric arc, UV -resistant, ageing -resistant, creepage distance big, little, the anti overvoltage of partial discharge volume can the reinforce etc. Characteristics, the change of fuse operation of need not not cutting off the power supply, flexible operation, security height to reach the outdoor power down time that reduces, reduce loss of outage, improve the user satisfaction.
Description
Technical field
The utility model relates to a kind of voltage transformer, and especially relating to an a kind of fuse can manipulation type outdoor voltage transformer assembly.
Background technology
For guaranteeing power network safety operation; improve power supply reliability; vacuum circuit breaker is adopted to replace post load switch in recent years; because vacuum circuit breaker has multinomial advantage; as substantially non-maintaining; adjust after protection numerical value meets short circuit current later and can cut-off excision fault point effectively voluntarily, effectively ensure that power network safety operation and power supply reliability.
But vacuum circuit breaker circuit in installation process must be in power down mode, causes line outage number of times to increase, interruption duration increases, and operation of power networks business efficiency is lower.But now, must install the control cabinet of voltage transformer to circuit breaker while installing vacuum circuit breaker and power, and voltage transformer does not have cut-off point, having electric current during turn-on voltage instrument transformer passes through, so can not carry out live line working overlap joint.The installation of vacuum circuit breaker used time that must have a power failure turn increases line loop operation amount, and the time that the set-up time longer equipment user of causing waits for lengthens, and adds customer complaint rate.If the more important thing is that voltage transformer breaks down directly can cause line tripping, the safe and stable operation of electrical network is impacted.So minimizing interruption duration, improve power supply reliability further and seem particularly important.
Utility model content
The purpose of this utility model be exactly provide to overcome defect that above-mentioned prior art exists a kind of need not power operation, convenient and swift, flexibility and the high fuse of fail safe can manipulation type outdoor voltage transformer assemblies.
The purpose of this utility model can be achieved through the following technical solutions:
An a kind of fuse can manipulation type outdoor voltage transformer assembly; for the error protection of outdoor high-voltage circuit; it is characterized in that; comprise voltage transformer, fuse and action bars; described fuse top is connected by rotary bayonet with voltage transformer; be connected with action bars top movable bottom fuse, by action bars, fuse sent into voltage transformer, or by action bars, fuse is extracted out from voltage transformer.
Bottom described fuse and action bars top is flexibly connected by rotary bayonet.
Described action bars top is provided with the sleeve for holding fuse, and described sleeve is flexibly connected with bottom fuse by rotary bayonet.
Described fuse comprises fuse and connected fuse base, and described fuse base and action bars top are flexibly connected by rotary bayonet.
Described fuse is flexibly connected by rotary bayonet with fuse base.
Described fuse base is the base that brass material is made.
Described fuse base is cylindrical.
Described fuse base periphery is provided with dust-proof step, makes voltage transformer and fuse form the integrative-structure sealed.
Described voltage transformer is the outdoor voltage transformer of poured with epoxy resin insulated full-enclosed structure.
Be bolted with voltage transformer bottom described fuse.
Compared with prior art, the utility model has the following advantages:
(1) when changing fuse, only by action bars, fuse directly need be taken off from voltage transformer, again new fuse is clamped on voltage transformer, convenient and swift, do not need the dismounting carrying out high-voltage connection, need not power operation, thus reach and reduce outdoor circuit power-off time, reduce loss of outage, improve user satisfaction.
(2) fuse base is flexibly connected by rotary bayonet with the sleeve with action bars top, as long as jacket casing is rotated on fuse base during operation an angle can realize the two connection, flexible operation, fail safe is high.
(3) fuse base adopts brass material to make, and bulk strength is good, with fuse conformability and conductivity all good.
(4) voltage transformer is poured with epoxy resin insulated full-enclosed structure, the feature such as have resistance to electric arc, UV resistant, ageing-resistant, creepage distance is large, partial discharge quantity is little, anti-overvoltage capacity is strong.
(5) fuse base periphery is provided with dust-proof step, makes voltage transformer and fuse form the integrative-structure sealed, prevents foreign matter from entering, and increases fail safe.
(6) be bolted with voltage transformer bottom fuse, play auxiliary fixation, prevent fuse from coming off, increase the service life, reduce maintenance frequency.
Accompanying drawing explanation
Fig. 1 is the present embodiment fuse and voltage transformer structure and annexation schematic front view;
Fig. 2 is the present embodiment voltage transformer schematic side view;
Fig. 3 is the present embodiment fuse base schematic shapes;
Fig. 4 is the present embodiment action bars schematic shapes;
Reference numeral:
1 is voltage transformer; 21 is fuse; 22 is fuse base; 3 is action bars; 31 is sleeve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.The present embodiment is implemented premised on technical solutions of the utility model, give detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
Embodiment
As shown in figures 1-4, an a kind of fuse can manipulation type outdoor voltage transformer assembly, for the error protection of outdoor high-voltage circuit, comprises voltage transformer 1, fuse and action bars 3.
Composition and annexation as follows: fuse top is connected by rotary bayonet with voltage transformer 1; Fuse comprises fuse 21 and fuse base 22, the two is flexibly connected by rotary bayonet, fuse 21 is connected with voltage transformer 1, action bars 3 is provided with the cylindrical sleeve 31 for holding fuse, sleeve 31 inside is provided with rotary bayonet structure, fuse base 22 is flexibly connected by rotary bayonet with sleeve 31, and fuse base 22 is cylindrical, the part that fuse base 22 periphery has projective structure to connect as rotary bayonet.
During use, first fuse 21 and fuse base 22 are linked into an integrated entity, then the sleeve 31 of action bars 3 is enclosed within fuse base 22, rotate to an angle and make the two engaging, hand-held bar 3, fuse is sent into voltage transformer 1, after fixing, make it depart from or fuse base 22 action bars 3 reverse rotation certain angle again.When fuse pulled down by needs, dismantle by same method.Do not relate to the dismounting of the nut at voltage transformer 1 outside primary connection terminal place due to whole process, do not need the dismounting carrying out a high-voltage connection yet, therefore do not need power operation.Fail safe and flexibility is too increased by hand-held bar 3 operation.
Preferably, a whole set of fuse adopts copper material to produce, there is the phenomenons such as surface corrosion when can effectively prevent product from using out of doors, fuse base 22 is made for brass material, and bulk strength is good, with fuse conformability and conductivity all good, the buckle structure clip of sleeve 31 inside adopts phosphor-copper processing, die forming, coordinates degree of tightness appropriateness, and can effectively ensure that electric conductivity is good with fuse base 22.Voltage transformer 1 is the outdoor voltage transformer of poured with epoxy resin insulated full-enclosed structure, be applicable in rated frequency 50Hz or 60Hz, rated voltage 10kV and following neutral non-effective grounding electric power system, make electric energy metrical, voltage monitoring and used for relay protection, meet GB20840.1-2010 and GB20840.3-2013 standard; The feature such as there is resistance to electric arc, UV resistant, ageing-resistant, creepage distance is large, partial discharge quantity is little, anti-overvoltage capacity is strong; Ambient temperature :-25 DEG C ~+40 DEG C, gradation for surface pollution: IV grade.
Fuse is special 10kV high-tension fuse, and volume is little, lightweight, and current limiting characteristic are good, can cut-off any electric current between 2 times of rated current to 50kA; Time current curve error is little, below ± 10%; Temperature rise is low, and the resistance value of fuse own is little and radiating condition good; Be swift in motion, when drop-out current rated current more than 20 times, operate time is only 4ms.
Further, fuse base 22 periphery is provided with the dust-proof step of a circle, blocks bottom fuse and gap between voltage transformer 1, makes voltage transformer 1 and fuse form the integrative-structure sealed, prevents foreign matter from entering.
Be bolted with voltage transformer 1 bottom described fuse, this bolt can be arranged on dust-proof step, plays auxiliary fixation.
Claims (10)
1. one kind once fuse can manipulation type outdoor voltage transformer assembly; for the error protection of outdoor high-voltage circuit; it is characterized in that; comprise voltage transformer (1), fuse and action bars (3); described fuse top is connected by rotary bayonet with voltage transformer (1); be connected with action bars (3) top movable bottom fuse; by action bars (3), fuse is sent into voltage transformer (1), or by action bars (3), fuse is extracted out from voltage transformer (1).
2. an a kind of fuse according to claim 1 can manipulation type outdoor voltage transformer assembly, it is characterized in that, bottom described fuse and action bars (3) top is flexibly connected by rotary bayonet.
3. an a kind of fuse according to claim 1 and 2 can manipulation type outdoor voltage transformer assembly, it is characterized in that, described action bars (3) top is provided with the sleeve (31) for holding fuse, and described sleeve (31) is flexibly connected with bottom fuse by rotary bayonet.
4. an a kind of fuse according to claim 1 and 2 can manipulation type outdoor voltage transformer assembly, it is characterized in that, described fuse comprises fuse (21) and connected fuse base (22), and described fuse base (22) and action bars (3) top are flexibly connected by rotary bayonet.
5. an a kind of fuse according to claim 4 can manipulation type outdoor voltage transformer assembly, and it is characterized in that, described fuse (21) is flexibly connected by rotary bayonet with fuse base (22).
6. an a kind of fuse according to claim 4 can manipulation type outdoor voltage transformer assembly, it is characterized in that, the base that described fuse base (22) is made for brass material.
7. an a kind of fuse according to claim 4 can manipulation type outdoor voltage transformer assembly, and it is characterized in that, described fuse base (22) is cylindrical.
8. an a kind of fuse according to claim 4 can manipulation type outdoor voltage transformer assembly, it is characterized in that, described fuse base (22) periphery is provided with dust-proof step, makes voltage transformer (1) and fuse form the integrative-structure sealed.
9. an a kind of fuse according to claim 1 can manipulation type outdoor voltage transformer assembly, it is characterized in that, the outdoor voltage transformer that described voltage transformer (1) is poured with epoxy resin insulated full-enclosed structure.
10. an a kind of fuse according to claim 1 can manipulation type outdoor voltage transformer assembly, it is characterized in that, bottom described fuse and voltage transformer (1) be bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520940997.9U CN205159080U (en) | 2015-11-23 | 2015-11-23 | Outdoor voltage transformer subassembly of operatable type of fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520940997.9U CN205159080U (en) | 2015-11-23 | 2015-11-23 | Outdoor voltage transformer subassembly of operatable type of fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205159080U true CN205159080U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520940997.9U Active CN205159080U (en) | 2015-11-23 | 2015-11-23 | Outdoor voltage transformer subassembly of operatable type of fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205159080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304302A (en) * | 2015-11-23 | 2016-02-03 | 国网上海市电力公司 | Primary fuse operable outdoor voltage transformer assembly |
-
2015
- 2015-11-23 CN CN201520940997.9U patent/CN205159080U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304302A (en) * | 2015-11-23 | 2016-02-03 | 国网上海市电力公司 | Primary fuse operable outdoor voltage transformer assembly |
| CN105304302B (en) * | 2015-11-23 | 2017-09-12 | 国网上海市电力公司 | A kind of operable type outdoor voltage transformer component of a fuse |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |