CN201238001Y - Pouring type pole of miniature vacuum circuit breaker - Google Patents
Pouring type pole of miniature vacuum circuit breaker Download PDFInfo
- Publication number
- CN201238001Y CN201238001Y CNU2008200954128U CN200820095412U CN201238001Y CN 201238001 Y CN201238001 Y CN 201238001Y CN U2008200954128 U CNU2008200954128 U CN U2008200954128U CN 200820095412 U CN200820095412 U CN 200820095412U CN 201238001 Y CN201238001 Y CN 201238001Y
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- CN
- China
- Prior art keywords
- pole
- electric
- conductor
- vacuum circuit
- vacuum
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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 - Lifetime
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model provides a casted pole of a small vacuum breaker, which is used on a vacuum breaker with a rated current of 1250A. The pole comprises a vacuum arc extinguish chamber, an upper conducting part and a lower conducting part, which are integrated together by epoxy resin casting to form the pole. Since the vacuum arc extinguish chamber, the upper conducting part and the lower conducting part are integrated together by casting to form the pole, the number of parts is reduced, the structure is simplified, the volume of the pole is effectively reduced, consequently, when the pole is assembled into a high-voltage switch cabinet, the width of the high-voltage switch cabinet can be reduced, and therefore the miniaturization of the high-voltage switch cabinet is realized. Moreover, since the pole is integrated with the vacuum arc extinguish chamber and no gap exists between the pole and the vacuum arc extinguish chamber, the mechanical reliability is high; meanwhile, the vacuum arc extinguish chamber can be protected from being impacted by external force; in terms of electrical properties, the capability of resisting environmental dirtiness and dew formation is strong; and when current is conducted, the creepage distance of the current along the outer insulation of the pole is long, so the insulating level is improved.
Description
Technical field
The utility model relates to a kind of high-tension vacuum switch equipment with vacuum interrupter, relates in particular to a kind of cast-type pole of small size vacuum circuit breaker.
Background technology
In electric power system, circuit breaker is widely used as power distribution equipment, in a large amount of vacuum circuit-breakers that use, generally comprises the phase post with vacuum interrupter at present.
In existing rated current is in the vacuum circuit-breaker of 1250A, and described phase post is made up of vacuum interrupter and insulating cylinder, and there is the space in the complex structure of phase post between vacuum interrupter and the insulating cylinder, thereby makes that the volume of phase post is big.Described phase column volume is big, can make that whole vacuum circuit-breaker volume is big, when being contained in vacuum circuit-breaker in the high-tension switch cabinet, can't realize the miniaturization of high-tension switch cabinet.
In addition, described vacuum interrupter is made by glass or pottery, because of having the space between vacuum interrupter and the insulating cylinder, when stressed external impacts, damages easily; Simultaneously, the easy condensation water of air makes to be subjected to environmental pollution easily by the easy condensation of phase post; When circuit turn-on, electric current is short along the shell surface creepage distance of vacuum interrupter, and insulation level is low.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of cast-type pole of small size vacuum circuit breaker, and its volume is little, good insulation preformance.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of cast-type pole of small size vacuum circuit breaker, and it is used for the vacuum circuit-breaker that rated current is 1250A; Described pole comprises vacuum interrupter, go up electric-conductor and electric-conductor down, described vacuum interrupter, go up electric-conductor and down electric-conductor connect one by poured with epoxy resin and form described pole.
The beneficial effects of the utility model are: vacuum interrupter, last electric-conductor and following electric-conductor are connected one by poured with epoxy resin form described pole, can reduce parts, simplified structure, effectively reduced the volume of pole, thereby in the time of in the high-tension switch cabinet of packing into, the high-tension switch cabinet width is reduced, realize the high-tension switch cabinet miniaturization.And pole and vacuum interrupter are integrated; there is not the space between the two; the Mechanical Reliability height; simultaneously can protect vacuum interrupter to avoid external force collision; anti-environment filth aspect electric property, condensation ability are strong; during current lead-through, electric current is long along the outer surface creepage distance of pole, has improved insulation level.
Description of drawings
Fig. 1 is the cross-sectional schematic of first preferred implementation of the utility model.
Embodiment
For making technical problem to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and the embodiments.Should be appreciated that embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Seeing also Fig. 1, is a preferred implementation of the cast-type pole of the utility model small size vacuum circuit breaker, and the pole in the present embodiment is used for the vacuum circuit-breaker that rated current is 1250A.
Described pole 1 comprises vacuum interrupter 2, goes up electric-conductor 3, electric-conductor 4 down, described vacuum interrupter 2, go up electric-conductor 3 and down electric-conductor 4 connect one by poured with epoxy resin and form described pole 1.The diameter of described vacuum interrupter 2 is 85mm only, described vacuum interrupter 2 comprises fixed contact (not shown) and moving contact 20, described fixed contact is fixed on the electric-conductor 3, and moving contact 20 is connected with following electric-conductor 4 by soft binding 5, constitutes the galvanic circle thus.Described vacuum circuit-breaker also comprises a pull bar 6, and pull bar 6 one ends are connected with moving contact 20, and the other end links to each other with operating mechanism.
Described vacuum circuit-breaker is the closure of realization circuit in vacuum interrupter 2 and opens circuit, during work,, form conductive path when fixed contact contacts with moving contact 20, electric current flow to the moving contact 20 of vacuum interrupter 2 from last electric-conductor 3 by fixed contact, again to soft binding 5 and electric-conductor 4 down; And when wanting open circuit, only need pulling pull bar 6, make fixed contact separate and get final product with moving contact 20.
The vacuum interrupter 2 of the cast-type pole of above-mentioned small size vacuum circuit breaker, go up electric-conductor 3 and down electric-conductor 4 become whole by poured with epoxy resin, can reduce parts, simplified structure, make that the volume of pole 1 is little, thereby make that the volume of vacuum circuit-breaker is little, in the time of in the high-tension switch cabinet of packing into, can make the high-tension switch cabinet width little, cabinet is wide only to be 550mm, realizes the high-tension switch cabinet miniaturization.Described pole 1 is integrated with vacuum interrupter 2; there is not the space between the two; the Mechanical Reliability height; simultaneously can protect vacuum interrupter 2 to avoid external force collision; it is strong that ability is revealed in anti-environment filth aspect electric property, anti-freezing; during current lead-through, electric current is long along the outer surface creepage distance of insulation of pole 1, has improved insulation level.
Claims (4)
1. the cast-type pole of a small size vacuum circuit breaker, it is used for the vacuum circuit-breaker that rated current is 1250A; Described pole comprises vacuum interrupter, go up electric-conductor and electric-conductor down, it is characterized in that: described vacuum interrupter, go up electric-conductor and down electric-conductor connect one by poured with epoxy resin and form described pole.
2. the cast-type pole of small size vacuum circuit breaker as claimed in claim 1 is characterized in that: described vacuum interrupter comprises fixed contact and moving contact, and described fixed contact is fixed on the electric-conductor, and moving contact is connected with following electric-conductor.
3. the cast-type pole of small size vacuum circuit breaker as claimed in claim 2 is characterized in that: described moving contact is connected with following electric-conductor by soft binding.
4. the cast-type pole of small size vacuum circuit breaker as claimed in claim 2 is characterized in that: described moving contact links to each other with a pull bar, and the other end of described pull bar is connected with the corresponding operating mechanism of vacuum circuit-breaker outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200954128U CN201238001Y (en) | 2008-07-02 | 2008-07-02 | Pouring type pole of miniature vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200954128U CN201238001Y (en) | 2008-07-02 | 2008-07-02 | Pouring type pole of miniature vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201238001Y true CN201238001Y (en) | 2009-05-13 |
Family
ID=40650736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200954128U Expired - Lifetime CN201238001Y (en) | 2008-07-02 | 2008-07-02 | Pouring type pole of miniature vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201238001Y (en) |
-
2008
- 2008-07-02 CN CNU2008200954128U patent/CN201238001Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090513 |