CN217061902U - Switch module for 12kV solid ring main unit - Google Patents
Switch module for 12kV solid ring main unit Download PDFInfo
- Publication number
- CN217061902U CN217061902U CN202220541823.5U CN202220541823U CN217061902U CN 217061902 U CN217061902 U CN 217061902U CN 202220541823 U CN202220541823 U CN 202220541823U CN 217061902 U CN217061902 U CN 217061902U
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- sword
- switch module
- stationary contact
- ring main
- main unit
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Abstract
The utility model provides a 12kV solid looped netowrk is switch module for cabinet, it includes vacuum interrupter, stationary contact sword, ground contact, keeps apart the sword and keeps apart sword operating device, the stationary contact sword passes through vacuum interrupter and is connected with the inlet wire conductor, keep apart the sword setting between stationary contact sword and ground contact and be connected with the outlet conductor, keep apart sword operating device drive keep apart the sword and swing between stationary contact sword and ground contact to realize with work, keep apart and three kinds of operating condition of ground connection. The switch module has the advantages of more reliable use, more environmental protection, wider application range and the like, and is a new generation of ring main unit switch.
Description
Technical Field
The utility model relates to a looped netowrk cabinet accessory especially relates to a 12kV solid for looped netowrk cabinet switch main module.
Background
In an electric power distribution system, a 12kV ring main unit is an extremely important complete set of equipment in the distribution system. Among them, 12kV solid ring main units are the main trend in the future. The switch module is a core component of the 12kV solid ring main unit, and the performance of the switch module directly influences the safety and reliability of the operation of the solid ring main unit.
The development trend of the existing ring main unit is miniaturization and intellectualization. With the modern development of electrical equipment, ring main units increasingly become terminal equipment of power supply units of ring main units in urban industrial parks, business centers, residential districts, industrial and mining enterprises and the like, and are high-voltage switch complete equipment integrating electric energy distribution, control and electrical protection. Most of the existing solid ring main units do not really realize the all-solid insulation requirement, in order to meet the development requirement of modern industrialization, a switch module matched with a 12kV solid ring main unit is particularly required to be developed, and the switch module capable of realizing industrial mass production does not appear in the market at present.
Disclosure of Invention
In order to solve the problem that exists among the background art, the utility model provides a 12kV solid looped netowrk is switch module for cabinet, this switch module have use more reliable, more environmental protection, application scope advantage such as wider, be the looped netowrk cabinet switch of new generation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a 12kV solid is switch module for looped netowrk cabinet, includes vacuum interrupter, quiet sword, ground contact, isolation sword and isolation sword operating device, the quiet sword that touches passes through vacuum interrupter and is connected with the inlet wire conductor, keep apart the sword setting and touch between sword and ground contact and be connected with the conductor of being qualified for the next round of competitions at the quiet, keep apart sword operating device drive keep apart the sword and touch the sword with the quiet swing between sword and ground contact to realize with the quiet sword contact, with the ground contact and with the quiet sword of touching and the equal three kinds of operating condition that break off of ground contact.
The end of the isolating knife connected with the outgoing conductor is hinged, and the other end swings around the hinged shaft under the action of the isolating knife operating mechanism.
The isolation knife operating mechanism comprises an isolation knife pull rod, one end of the isolation knife pull rod is hinged to the middle of the isolation knife, and the other end of the isolation knife pull rod is connected with the operating mechanism.
And a vacuum arc extinguish chamber pull rod is also arranged on the vacuum arc extinguish chamber.
The vacuum arc extinguish chamber, the stationary contact knife, the incoming line conductor and the outgoing line conductor are fixedly sealed together through a fixed insulating material.
The outer surface of the switch module is sprayed with a conductive or semi-conductive layer and the surface is grounded during operation.
And the switch module is closed in the grounded metal shell after being assembled.
The beneficial effects of the utility model are that:
the switch module adopts a vacuum arc extinguish chamber to realize the on-off of faults. The vacuum circuit breaker does not need SF6 or insulating oil and other arc extinguishing and insulating media, can realize quick arc extinguishing, and does not have the material that can be ionized in the arc extinguishing chamber. In any event, when the contacts are separated, the arc path between the contacts is made up of metal ions of the contact material only.
The switch module is particularly suitable for metal armor complete set design, and can provide a product with high reliability, good economy, friendly user operation interface and high safety for customers. The method is suitable for a 6-12 kV three-phase alternating current 50Hz power system, such as: the power distribution system comprises a ring network power supply system, a small-capacity power distribution room, a double-radiation power supply system and a cable feed network. Compared with the traditional SF6 ring main unit, the ring main unit is a new generation ring main unit which is more reliable in use, more environment-friendly and wider in application range.
Drawings
The present invention will be further explained with reference to the accompanying drawings
Fig. 1 is a schematic structural view of the switch module of the present invention in an operating position;
fig. 2 is a schematic structural view of the switch module of the present invention in the isolated position;
fig. 3 is a schematic structural diagram of the switch module of the present invention when the switch module is in the grounding position.
Wherein:
1-a line-incoming conductor; 2-a pull rod of the vacuum arc extinguish chamber; 3, isolating a knife; 4-a ground contact; 5-isolating the knife pull rod; 6-an outlet conductor; 7-stationary contact knife; 8-a vacuum arc-extinguishing chamber; 9-fixing the insulating material.
Detailed Description
The invention will be further described with reference to the following description and embodiments in conjunction with the accompanying drawings:
example 1
The embodiment provides a 12kV solid ring main unit switch module, which is arranged between an incoming line conductor 1 and an outgoing line conductor 6, wherein the incoming line conductor 1 is used for connecting a primary power supply and a combined cabinet bus, and the outgoing line conductor 6 is used for leading out the power supply and supplying power to a load after being assembled with a cable accessory.
As shown in fig. 1, the switch module for the 12kV solid ring main unit comprises a vacuum arc extinguish chamber 8, a stationary contact knife 7, a grounding contact 4, an isolation knife 3 and an isolation knife operating mechanism, wherein one end of the vacuum arc extinguish chamber 8 is connected with an incoming line conductor 1, the other end of the vacuum arc extinguish chamber 8 is connected with the stationary contact knife 7, and the vacuum arc extinguish chamber 8 is used for realizing the opening and closing of a primary loop.
The isolation knife 3 is arranged between the static contact knife 7 and the grounding contact 4 and is connected with the outgoing line conductor 6, and the other end, connected with the outgoing line conductor 6, of the isolation knife 3 swings between the static contact knife 7 and the grounding contact 4 under the driving of the isolation knife operating mechanism so as to realize three working states of being in contact with the static contact knife, being in contact with the grounding contact and being disconnected with the static contact knife and the grounding contact.
Under the condition that the power equipment normally operates, as shown in fig. 1, the isolation knife 3 is in contact with the static knife 7, the incoming line conductor 1 is communicated with the outgoing line conductor 6, and the whole switch module is located at a working position.
When a fault occurs and the arc extinguish chamber is disconnected, as shown in fig. 2, the isolation knife 3 is located between the stationary contact knife 7 and the grounding contact 4, the isolation knife 3 is kept disconnected from the grounding contact 4 and the stationary contact 7, and at this time, the whole switch module is located at an isolation position.
When the maintenance or the test is needed, as shown in fig. 3, the isolation knife 3 is in contact with the grounding contact 4, and the switch module is in the grounding position at this time, so that the safety of maintenance and operation personnel can be ensured.
Keep apart sword 3 and the one end of being connected of conductor 6 and be articulated the connection, the other end is around the articulated shaft swing under the effect of keeping apart sword operating device, and as preferred, keep apart sword operating device and include keeping apart sword pull rod 5, keep apart the articulated connection of one end of sword pull rod 5 and be in keep apart the middle part of sword 3, keep apart the other end of sword pull rod 5 and link to each other with operating mechanism, through the effect of keeping apart sword pull rod 5, can realize keeping apart the three station operations of sword 3.
The vacuum arc extinguish chamber 8 is also provided with a vacuum arc extinguish chamber pull rod 2, and the vacuum arc extinguish chamber pull rod 2 is used for the insulation connection of the vacuum arc extinguish chamber and the operating mechanism and used for the disconnection and the closing of arc extinguish.
The vacuum arc extinguish chamber 8, the stationary contact knife 7, the incoming line conductor 1 and the outgoing line conductor 6 are fixedly sealed together through a fixed insulating material 9 to jointly realize solid insulation.
The outer surface of the switch module is sprayed with a conducting or semi-conducting layer and the surface is grounded during operation. And the switch module is closed in the grounded metal shell after being assembled.
Those skilled in the art will recognize that a wide variety of modifications, alterations, and combinations can be made with respect to the above described embodiments without departing from the scope of the invention, and that such modifications, alterations, and combinations are to be viewed as being within the ambit of the inventive concept.
Claims (7)
1. The utility model provides a 12kV solid looped netowrk is switch module for cabinet, includes vacuum interrupter, stationary contact sword, ground contact, isolation sword and isolation sword operating device, its characterized in that:
the utility model discloses a line conductor, including stationary contact sword, isolation sword operating device, stationary contact sword passes through vacuum interrupter and is connected with the inlet wire conductor, keep apart the sword setting between stationary contact sword and ground contact and be connected with the outlet wire conductor, keep apart sword operating device drive keep apart the sword and swing between stationary contact sword and ground contact to realize contacting with stationary contact sword, contacting with ground contact and all breaking off three kinds of operating condition with stationary contact sword and ground contact.
2. The switch module for the 12kV solid ring main unit according to claim 1, wherein one end of the isolation knife connected with the outgoing conductor is hinged, and the other end swings around the hinge shaft under the action of the isolation knife operating mechanism.
3. The switch module for the 12kV solid ring main unit according to claim 2, wherein the isolation knife operating mechanism comprises an isolation knife pull rod, one end of the isolation knife pull rod is hinged to the middle of the isolation knife, and the other end of the isolation knife pull rod is connected to the operating mechanism.
4. The switch module for the 12kV solid ring main unit according to claim 1, wherein a vacuum arc-extinguishing chamber pull rod is further arranged on the vacuum arc-extinguishing chamber.
5. The switch module for the 12kV solid ring main unit according to claim 1, wherein the vacuum arc-extinguishing chamber, the stationary contact knife, the incoming conductor and the outgoing conductor are all fixedly sealed together through a fixing insulating material.
6. The switch module as claimed in claim 1, wherein the outer surface of the switch module is coated with a conductive layer or a semi-conductive layer, and the surface is grounded during operation.
7. The switch module for the 12kV solid ring main unit as claimed in claim 1, wherein the switch module is enclosed in a grounded metal casing after being assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220541823.5U CN217061902U (en) | 2022-03-15 | 2022-03-15 | Switch module for 12kV solid ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220541823.5U CN217061902U (en) | 2022-03-15 | 2022-03-15 | Switch module for 12kV solid ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217061902U true CN217061902U (en) | 2022-07-26 |
Family
ID=82489328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220541823.5U Active CN217061902U (en) | 2022-03-15 | 2022-03-15 | Switch module for 12kV solid ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217061902U (en) |
-
2022
- 2022-03-15 CN CN202220541823.5U patent/CN217061902U/en active Active
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