CN217561557U - Electric power high voltage arrester connects device soon - Google Patents
Electric power high voltage arrester connects device soon Download PDFInfo
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- CN217561557U CN217561557U CN202220970222.6U CN202220970222U CN217561557U CN 217561557 U CN217561557 U CN 217561557U CN 202220970222 U CN202220970222 U CN 202220970222U CN 217561557 U CN217561557 U CN 217561557U
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Abstract
The utility model discloses an electric power high voltage arrester connects device soon relates to the relevant field of power equipment, including the test box body, the last activity pull of test box body is provided with drawer portion, be provided with the load wiring end that links to each other with external cable and the earthing terminal that links to each other with the ground on the test box body, be provided with a plurality of arresters in the drawer portion, the inboard one end of drawer portion is provided with the moving contact of pegging graft with load wiring end, earthing terminal cooperation, the moving contact links to each other with the arrester, drawer outside one end is provided with the pull handle, when the arrester test is carried out to needs, can with having done experimental and qualified with the specification device, insert the switch board fast in, reduce outage time by a wide margin.
Description
Technical Field
The utility model relates to a power equipment technical field especially relates to an electric power high voltage arrester connects device soon.
Background
With the high-quality development of economy in China, the requirements of various industries on the safety and reliability of power supply are higher and higher, server rooms, robots, numerical control machines, machining centers and the like are increased in enterprises and become core units of the enterprises, the normal operation of the enterprises cannot be guaranteed by the traditional power supply guarantee, and therefore the components of a power system need to be periodically checked.
The lightning arrester is an important link in an electric power system and is mainly used for protecting various electrical equipment in the electric power system from lightning overvoltage, operation overvoltage and power frequency transient overvoltage impact, particularly in some occasions with higher altitude or high power and frequent starting, lightning stroke or overvoltage in the system is particularly common, and if the lightning arrester fails for a long time, the lightning arrester can impact the electrical equipment on the whole line to cause damage. Therefore, in the national grid company transformation overhaul management regulation, the lightning arrester overhaul detailed rule is regulated: the maintenance period is appropriately prolonged or shortened on the basis of the reference period according to the characteristics of equipment state, regional environment, power grid structure and the like, and the adjusted maintenance period is generally not less than 1 year. National preventive test regulations for electric power equipment stipulate: the 10kV lightning arrester is tested once a year.
The mounting means adopts about bolt fastening mode in the switch board traditional arrester, and every test all needs to go on after dismantling the arrester after the outage, and three arresters of installation ABC in every cupboard, including the arrester mounted position is located cabinet body bottom, consequently dismantle the degree of difficulty great, and dismantlement time and recovery time are longer, about general power failure check time 3 hours, can cause enterprise's economic loss of stopping production when so long, influence resident's normal life. How to solve the trouble and ensure the reliable and safe electricity utilization is urgent.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a device that connects soon of electric power high voltage arrester, and this equipment can be with having done experimental and qualified with the specification device when the arrester test is carried out to needs, in the quick access switch board, reduces the outage time by a wide margin, has solved the problem that exists among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an electric power high voltage arrester connects device soon, includes the test box, the last activity pull of test box is provided with drawer portion, be provided with the load wiring end that links to each other with external cable and the earthing terminal that links to each other with the ground on the test box, be provided with a plurality of arresters in the drawer portion, the inboard one end of drawer portion is provided with the moving contact of pegging graft with load wiring end, earthing terminal cooperation, the moving contact links to each other with the arrester, drawer outside one end is provided with the pull handle.
In order to further optimize the utility model discloses, can prefer following technical scheme for use:
preferably, the moving contacts are arranged in parallel, and the moving contacts are fork-shaped pincer type joints.
Preferably, the bottom of the drawer part is also rotatably provided with a roller for translational guiding, a slide rail matched with the roller is arranged in the test box, and the roller is a V-shaped wheel.
Preferably, a limiting plate is further arranged at one end of the bottom of the drawer portion, which is close to the outer side, and an elastic pad is arranged at one end of the inner side of the limiting plate.
Preferably, one end of the outer side of the drawer part is provided with a switching indicator lamp, one end of the switching indicator lamp is connected with a load wiring terminal, and the other end of the switching indicator lamp is connected with a grounding terminal.
Preferably, an insulating assembly for ensuring a safe distance is arranged between the lightning arrester and the load wiring terminal and between the lightning arrester and the ground terminal.
Preferably, still be provided with side guide mechanism on the lateral wall of drawer portion both sides, side guide mechanism sets up the backing roll on drawer portion lateral wall including rotating, the backing roll lateral wall laminates with the test box inboard wall mutually.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
in transversely installing the arrester in the drawer cupboard in this scheme, pull out or impel the arrester wholly through operation push-and-pull handle, only need in the preventive test process with qualified arrester of test and the whole change of drawer can, reach the purpose that reduces the power off time. In the scheme, insulating assemblies are arranged between the drawer part and the arrester busbar so as to ensure the safety distance; in addition, guide mechanisms are designed at the bottom and the side part of the drawer, so that the inserting and connecting accuracy can be guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of a lightning arrester quick-connection device;
fig. 2 is a schematic view of the drawer structure.
The lightning arrester test device comprises a test box body 1, a drawer part 2, a load terminal 3, a clamp type connector 4, a lightning arrester 5, a drawing handle 6, a side guide mechanism 7, a slide rail 8, a roller 9, a support roller 10, a split indicator lamp 11, a connecting wire 12, a grounding end 13, a soft sleeve 14, a support shaft 15, a limiting plate 16 and an elastic pad 17.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
The lightning arrester is common in high-low voltage complete switch cabinets and one of important electrical equipment, and has the significance of protecting other electrical equipment and effectively avoiding faults of the switch cabinet in an abnormal voltage state. The arrester is connected between the cable and ground, typically in parallel with the equipment to be protected. The lightning arrester can effectively protect communication equipment, and once abnormal voltage appears, the lightning arrester acts to play a role in protection. When the communication cable or equipment is operated under normal operating voltage, the lightning arrester does not act and is considered as an open circuit to the ground. Once high voltage occurs and the insulation of the protected equipment is endangered, the lightning arrester acts immediately to guide high voltage surge current to the ground, thereby limiting the voltage amplitude and protecting the communication cable and the equipment insulation. When the overvoltage disappears, the lightning arrester is quickly restored to the original state, so that the communication line works normally. Therefore, the lightning arrester mainly plays a role in reducing the amplitude of the invading flowing wave and reducing the overvoltage value borne by the protected equipment through the action of the parallel discharge gap or the nonlinear resistor, thereby protecting communication lines and equipment. The lightning arrester can be used not only to protect against high voltages generated by lightning but also to protect against high operating voltages.
The lightning arrester is used for protecting various electrical equipment in an electric power system from being damaged by lightning overvoltage, operation overvoltage and power frequency transient overvoltage impact. The types of arresters are mainly protection gap, valve type arresters and zinc oxide arresters. The protective gap is mainly used for limiting atmospheric overvoltage and is generally used for protecting the line incoming section of a power distribution system, a line and a substation. The valve type lightning arrester and the zinc oxide lightning arrester are used for protecting a substation and a power plant, are mainly used for limiting atmospheric overvoltage in a system of 500KV and below, and are also used for limiting internal overvoltage or performing backup protection on the internal overvoltage in an ultrahigh voltage system.
Example 1:
as shown in the figures 1-2 of the drawings,
the utility model provides an electric power high voltage arrester connects device soon, including test box 1, movable pull installs drawer portion 2 on the test box 1, install the load wiring end 3 that links to each other with external cable and the earthing terminal that links to each other with the ground on the test box, install a plurality of arrester 5 in the drawer portion, the moving contact of pegging graft with load wiring end 3, earthing terminal 13 cooperation is installed to the inboard one end of drawer portion, the moving contact links to each other with the arrester, wherein, the moving contact is installed a plurality of side by side, the moving contact is 6 in this embodiment, wherein three moving contact links to each other with three load wiring end, three moving contact links to each other with three earthing terminal 13 in addition, in order to guarantee the fastness of connection, the moving contact is jaw type joint 4 of fork, pull handle 6 is installed to drawer outside one end, be convenient for personnel to install, dismantle, transversely install the arrester in the drawer cupboard in this scheme, pull out the arrester wholly through the pull handle, when in the preventative test process only need with qualified arrester and drawer whole change can, reach the mesh that reduces the power failure time.
As preferred scheme, drawer portion bottom still rotates installs the gyro wheel 9 that is used for the translation direction, install in the test box with gyro wheel complex slide rail 8, the gyro wheel is V type wheel, all designs at drawer bottom and lateral part in this scheme in addition has guiding mechanism, can guarantee the accuracy of adjusting well of pegging graft.
As preferred scheme, limiting plate 16 is still installed to the bottom of drawer portion near outside one end position, and the inboard one end of limiting plate 16 is installed the cushion 17, and the cushion 17 can prevent limiting plate and test box rigid contact, plays the safety protection effect.
Preferably, one end of the outer side of the drawer part 2 is provided with a switching indicator lamp 11, one end of the switching indicator lamp 11 is connected with a load wiring terminal through a connecting wire 12, and the other end of the switching indicator lamp is connected with a grounding terminal through the connecting wire 12, so that the on-off of a test circuit can be observed conveniently, and the safety is ensured.
Preferably, an insulating component for ensuring a safe distance is arranged between the lightning arrester and the load terminal and between the lightning arrester and the ground terminal.
As preferred scheme, still install side guide mechanism 7 on the lateral wall of drawer portion both sides, side guide mechanism 7 is including rotating the backing roll 10 of installing on the drawer portion lateral wall, and the backing roll lateral wall is laminated mutually with the test box lateral wall, and the backing roll includes upwards installs back shaft 15 on the drawer portion lateral wall, and the cover is equipped with soft cover 14 in the pivot, can further improve the nimble stability of drawer portion tractive process through side guide mechanism, can also prevent that drawer portion from breaking away from the slide rail.
Preferably, the U-shaped positioning rings on the left clamping part and the right clamping part are installed in a vertically staggered mode and are opposite in position.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The utility model provides an electric power high voltage arrester connects device soon which characterized in that: the testing box is movably pulled and provided with a drawer part, a load wiring end connected with an external cable and a grounding end connected with the ground are arranged on the testing box, a plurality of lightning arresters are arranged in the drawer part, a moving contact which is matched and spliced with the load wiring end and the grounding end is arranged at one end of the inner side of the drawer part, the moving contact is connected with the lightning arresters, and a pulling handle is arranged at one end of the outer side of the drawer.
2. An electric high voltage arrester quick-connect device according to claim 1, characterized in that: the moving contacts are arranged in parallel and are fork-shaped clamp-type joints.
3. The electric power high voltage arrester of claim 1 is connected device soon, characterized in that: the bottom of the drawer part is also rotatably provided with a roller for translational guiding, a slide rail matched with the roller is arranged in the test box, and the roller is a V-shaped wheel.
4. An electric high voltage arrester quick-connect device according to claim 1, characterized in that: a limiting plate is further arranged at one end, close to the outer side, of the bottom of the drawer portion, and an elastic pad is arranged at one end of the inner side of the limiting plate.
5. An electric high voltage arrester quick-connect device according to claim 1, characterized in that: and one end of the outer side of the drawer part is provided with a split indicator light, one end of the split indicator light is connected with the load wiring terminal, and the other end of the split indicator light is connected with the grounding terminal.
6. An electric high voltage arrester quick-connect device according to claim 1, characterized in that: and an insulating assembly for ensuring a safe distance is arranged between the lightning arrester and the load wiring terminal and between the lightning arrester and the grounding terminal.
7. An electric high voltage arrester quick-connect device according to claim 1, characterized in that: still be provided with side guide mechanism on the lateral wall of drawer portion both sides, side guide mechanism sets up the backing roll on drawer portion lateral wall including rotating, the backing roll lateral wall laminates with the test box inboard wall mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220970222.6U CN217561557U (en) | 2022-04-21 | 2022-04-21 | Electric power high voltage arrester connects device soon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220970222.6U CN217561557U (en) | 2022-04-21 | 2022-04-21 | Electric power high voltage arrester connects device soon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217561557U true CN217561557U (en) | 2022-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220970222.6U Active CN217561557U (en) | 2022-04-21 | 2022-04-21 | Electric power high voltage arrester connects device soon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217561557U (en) |
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2022
- 2022-04-21 CN CN202220970222.6U patent/CN217561557U/en active Active
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