CN211879286U - Moving contact structure of outdoor high-voltage SF6 column circuit breaker - Google Patents
Moving contact structure of outdoor high-voltage SF6 column circuit breaker Download PDFInfo
- Publication number
- CN211879286U CN211879286U CN202020550024.5U CN202020550024U CN211879286U CN 211879286 U CN211879286 U CN 211879286U CN 202020550024 U CN202020550024 U CN 202020550024U CN 211879286 U CN211879286 U CN 211879286U
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- moving contact
- contact
- circuit breaker
- outdoor high
- movable contact
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Abstract
The utility model discloses a high-tension apparatus technical field's an outdoor high-pressure SF post goes up circuit breaker moving contact structure, including the conducting rod, install the moving contact on the conducting rod, the moving contact is blocked the drive by insulating connecting lever, moving contact one end stretches into to the explosion chamber inner chamber, the moving contact afterbody is attached to have the movable contact to indicate, the movable contact indicates that the outer wall cover is equipped with the contact finger spring, the utility model discloses increase at the moving contact afterbody and indicate this kind of nimble and the reliable contact mode of conductivity of lamella, improved the stability and the reliability of switch action greatly.
Description
Technical Field
The utility model relates to a high-tension apparatus technical field specifically is an outdoor high pressure SF6 circuit breaker movable contact structure on post.
Background
The outdoor high-voltage SF6 pole-mounted circuit breaker is an outdoor high-voltage switch device, is mainly used for separating and combining load current, overload current and short-circuit current of a power system, and is widely applied to distribution networks.
The outdoor high-voltage SF6 pole-mounted circuit breaker is SF6 gas insulation, SF6 gas arc extinguishing, a gas box comprises a moving contact, a fixed contact, a CT, a ZCT, a zero sequence voltage sensor, a main shaft component and an arc extinguishing chamber basic module, and the stability and the reliability of the switch operation are realized by the good combination of the moving contact, the fixed contact, the CT, the ZCT, the zero sequence voltage sensor, the main shaft component and the arc extinguishing chamber basic module. Due to the self-sliding property of the moving contact, the moving contact can be reliably and stably in close contact with the conducting rod and the static contact when a switch is switched on, the electrical conductivity is guaranteed, and the moving contact can be reliably disconnected from the static contact when the switch is switched off, so that the moving contact structure of the outdoor high-voltage SF6 pole-mounted circuit breaker is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an outdoor high pressure SF6 circuit breaker movable contact structure on post to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an outdoor high pressure SF circuit breaker moving contact structure on post, includes the conducting rod, install the moving contact on the conducting rod, the moving contact blocks the drive by insulating connecting lever, moving contact one end stretches into to the explosion chamber inner chamber, the moving contact afterbody is attached to have the movable contact to indicate, movable contact indicates that the outer wall cover of movable contact is equipped with the contact finger spring.
Further, the number of the movable contact fingers is 10, and the number of the contact finger springs is 2.
Furthermore, the structure of the movable contact finger is matched with the structure of the corresponding end of the movable contact.
Further, the bottom surface of the arc extinguish chamber is provided with a drying agent.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses simple structure, reasonable in design increases at the moving contact afterbody and touches this kind of nimble and the reliable contact mode of electric conductivity of finger lamella. The stability and the reliability of the switch action are greatly improved, and because of the flexibility of the finger contact valve, the requirement of the impact strength on the concentricity error of three phases can be more inclusive when the switch acts.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a conductive rod; 2. a moving contact; 3. an insulating crank arm; 4. an arc extinguishing chamber; 5. a movable contact finger; 6. a finger spring; 7. a desiccant.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides a moving contact structure of an outdoor high-voltage SF6 pole-mounted circuit breaker, including a conducting rod 1, a moving contact 2 is installed on the conducting rod 1, a watchband contact finger is installed at the internal contact position between each other to ensure good electrical contact, the moving contact 2 is blocked by an insulating connecting lever 3 to be driven, one end of the moving contact 2 extends into an inner cavity of an arc extinguish chamber 4, a moving contact finger 5 is additionally arranged at the tail part of the moving contact 2, a contact finger spring 6 is sleeved on the outer wall of the moving contact finger 5, and the structure of the moving contact finger 5 is identical to the structure of the corresponding end of the moving;
the moving contact 2 correspondingly slides back and forth on the conducting rod 1 under the strong driving of the insulating crank arm 3, and when the head of the moving contact 3 extends into the arc extinguish chamber 4 to be deeply contacted with the static contact finger and keeps specified overtravel, the switch-on is realized; when the head of the moving contact 2 exits the arc extinguish chamber 4 and keeps a specified separation distance with the static contact finger, the opening is realized.
The surface of the movable contact finger 5 can be plated with tin, so that the conductivity is increased, and the influence on the loop resistance is reduced. The outer wall of the movable contact finger 5 is sleeved with a contact finger spring 6, the contact part of the movable contact 2 and the conducting rod is additionally provided with a pressure contact mode of the movable contact finger 5 with reliable and stable activity on the basis of the existence of the original silver watchband, and the stability and the reliability of the switch action are greatly improved.
The number of the movable contact fingers 5 is 10, the number of the contact finger springs 6 is 2, the movable contact fingers 5 with certain width and the contact finger springs 6 with certain elasticity are selected through tests according to the size of the conducting rod and the requirements of the mechanical characteristics of the switch, and the performance of the movable contact 2 under normal opening and closing is guaranteed and the movable contact is not scratched.
The bottom surface of the arc extinguish chamber 4 is provided with a drying agent 7.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an outdoor high pressure SF6 circuit breaker movable contact structure on post which characterized in that: including conducting rod (1), install moving contact (2) on conducting rod (1), moving contact (2) are blocked by insulating connecting lever (3) and are driven, moving contact (2) one end is stretched into to explosion chamber (4) inner chamber, moving contact (2) afterbody is additional to have movable contact to indicate (5), movable contact indicates (5) outer wall cover and is equipped with and touches finger spring (6).
2. The moving contact structure of the outdoor high-voltage SF6 pole-mounted circuit breaker of claim 1, wherein: the number of the movable contact fingers (5) is 10, and the number of the contact finger springs (6) is 2.
3. The moving contact structure of the outdoor high-voltage SF6 pole-mounted circuit breaker of claim 1, wherein: the structure of the movable contact finger (5) is matched with the structure of the corresponding end of the movable contact (2).
4. The moving contact structure of the outdoor high-voltage SF6 pole-mounted circuit breaker of claim 1, wherein: and a drying agent (7) is arranged on the bottom surface of the arc extinguish chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020550024.5U CN211879286U (en) | 2020-04-15 | 2020-04-15 | Moving contact structure of outdoor high-voltage SF6 column circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020550024.5U CN211879286U (en) | 2020-04-15 | 2020-04-15 | Moving contact structure of outdoor high-voltage SF6 column circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211879286U true CN211879286U (en) | 2020-11-06 |
Family
ID=73251643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020550024.5U Active CN211879286U (en) | 2020-04-15 | 2020-04-15 | Moving contact structure of outdoor high-voltage SF6 column circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211879286U (en) |
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2020
- 2020-04-15 CN CN202020550024.5U patent/CN211879286U/en active Active
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