CN214068631U

CN214068631U - 10kV aerifys circuit breaker for cabinet

Info

Publication number: CN214068631U
Application number: CN202120062009.0U
Authority: CN
Inventors: 罗健; 欧阳帆
Original assignee: Hunan Changgao Electrical Equipment Co ltd
Current assignee: Hunan Changgao Electrical Equipment Co ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2021-08-27
Anticipated expiration: 2031-01-11

Abstract

The utility model discloses a 10kV aerifys circuit breaker for cabinet, including earthing switch and two interval arrangement's mounting panel, it has the ground connection switch to inlay between the bottom of two mounting panels, and earthing switch includes moves the sword revolving rack and locates and move the earthing knife contact on the sword revolving rack, moves the sword revolving rack and inlays between two mounting panels with rotating. This 10kV aerifys circuit breaker for cabinet has structural strength height, divide-shut brake fast, divide-shut brake stability good and can bear advantages such as great electric current repulsion.

Description

10kV aerifys circuit breaker for cabinet

Technical Field

The utility model relates to an aerify cabinet technical field, especially relate to a 10kV aerifys circuit breaker for cabinet.

Background

With the development of new processes and new materials, the types of high-voltage switch cabinets are more and more abundant, but the gas-filled cabinet also plays an important role in a 10kV power transmission and distribution system.

In the gas-filled cabinet, the circuit breaker is an important primary component, and whether the power transmission and distribution system can safely operate depends on whether the performance of the circuit breaker is strong and reliable to a great extent.

In the current market, the circuit breaker and isolation and grounding integrated switch used in the gas-filled cabinet has obvious defects, particularly, in the grounding switch part, the existing grounding switch basically adopts an independent crank arm to drag a moving blade, the structural strength is relatively weak, the switching-on and switching-off speed is slow, and the stability during switching-on and switching-off is not good enough, so that the switching-on and switching-off capacity of the grounding knife switch is not strong, however, the grounding switch is a common switch device which is most widely applied in a power distribution system and used for protecting the human body and equipment safety, the load can possibly flow current back to the grounding switch in the switching-on and switching-off process of the grounding switch, the current instantaneous value reaches dozens of kiloamperes, the current repulsion force generated by huge instantaneous current has great influence on the reliable switching-on and switching-off of the grounding switch, and the grounding switch of the existing gas-filled cabinet is difficult to bear larger current repulsion force.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a structural strength height, divide-shut brake speed fast, divide-shut brake stability good and can bear a 10kV of great electric current repulsion circuit breaker for gas insulated switchgear.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a circuit breaker for 10kV aerifys cabinet, includes earthing switch and two mounting panels of interval arrangement, two it has ground connection switch to inlay between the bottom of mounting panel, earthing switch includes moves the sword revolving rack and locates and moves the earthing knife touch piece on the sword revolving rack, it can inlay between two mounting panels with rotating to move the sword revolving rack.

As a further improvement of the above technical solution:

the moving knife rotating frame is provided with a mounting groove, the grounding knife contact piece) is fixed in the mounting groove, and one end of the grounding knife contact piece is provided with a contact used for contacting with a grounding knife switch.

And a base is further inlaid between the bottoms of the two mounting plates, a cutter holder is arranged on the base, a hinge hole coaxial with the rotation center of the movable cutter rotating frame is formed in the cutter holder, and one end, away from the contact, of the grounding cutter contact piece is hinged in the hinge hole in the cutter holder.

The grounding knife contact piece comprises two parallel contact strips, the two contact strips are fixed in the mounting groove, the contact is connected to one ends of the two contact strips, and the other ends of the two contact strips are hinged to hinge holes in the knife holder.

And the two contact strips are fixed in the mounting groove through pin shafts.

And a contact block is arranged at the position of the grounding disconnecting link corresponding to the contact.

The grounding knife contact pieces are at least three, and are distributed at intervals along the axial direction of the movable knife rotating frame.

And an isolation disconnecting link is arranged between the tops of the two mounting plates.

And the two mounting plates are provided with insulating plates on two sides of the isolation disconnecting link.

And a vacuum arc extinguish chamber is formed between the two insulating plates above the isolation disconnecting link.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a 10kV aerifys circuit breaker for cabinet, including earthing switch and two interval arrangement's mounting panel, it has the ground connection switch to inlay between the bottom of two mounting panels, and earthing switch includes moves the sword revolving rack and locates and move the earthing knife contact piece on the sword revolving rack, moves the sword revolving rack and inlays between two mounting panels with rotating. The switching-on process of the grounding switch is as follows: the movable knife rotating frame rotates to enable the grounding knife contact piece on the movable knife rotating frame to be in contact with the grounding knife switch, and closing is achieved. The moving knife rotating frame is driven by a straight shaft, the strength is better, the moving knife rotating frame can bear larger force when extreme working conditions occur, the moving knife rotating frame is more stable when switching on, the bounce time is short, the grounding knife contact piece is not easy to damage when contacting a grounding knife switch, the energy transmission loss of an operating mechanism is reduced, and the switching-on speed is higher. This 10kV aerifys circuit breaker for cabinet structural strength height, divide the closing fast, divide closing stability good and can bear great electric current repulsion.

Drawings

Fig. 1 is the front structure schematic diagram of the circuit breaker for 10kV gas-filled cabinet of the utility model.

Fig. 2 is the back structure schematic diagram of the circuit breaker for 10kV gas-filled cabinet of the utility model.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a schematic view of the three-dimensional structure of the movable knife rotating stand of the circuit breaker for 10kV gas-filled cabinet of the utility model.

Fig. 5 is an enlarged view at B in fig. 4.

The reference numerals in the figures denote:

1. a grounding switch; 11. a movable knife rotating frame; 111. mounting grooves; 12. a grounding blade contact; 121. a touch bar; 13. a pin shaft; 2. mounting a plate; 3. a grounding disconnecting link; 31. a contact block; 4. a contact; 5. a base; 6. a tool apron; 7. isolating the disconnecting link; 8. an insulating plate; 81. a branch bus; 82. mounting blocks; 83. mounting holes; 9. a vacuum arc-extinguishing chamber.

Detailed Description

The invention will be described in further detail with reference to the drawings and specific examples.

Fig. 1 to 5 show the utility model discloses an embodiment of 10kV aerifys circuit breaker for cabinet, this circuit breaker for 10kV aerifys cabinet includes earthing switch 1 and two interval arrangement's mounting panel 2, inlays between the bottom of two mounting panels 2 and has ground connection switch 3, and earthing switch 1 includes moves sword revolving rack 11 and locates the earthing knife contact 12 on moving sword revolving rack 11, moves sword revolving rack 11 and can inlay between two mounting panels 2 with rotating. The switching-on process of the grounding switch 1 is as follows: the movable knife rotating frame 11 rotates, and the grounding knife contact piece 12 on the movable knife rotating frame 11 is contacted with the grounding knife switch 3 to realize switch-on. The moving knife rotating frame 11 is adopted for straight shaft driving, the strength is better, when extreme working conditions occur, the large force can be borne, the switch-on is more stable, the bounce time is short, the grounding knife contact piece 12 is not easy to damage when contacting the grounding knife switch 3, the energy transmission loss of an operating mechanism is reduced, and the switch-on speed is higher. This 10kV aerifys circuit breaker for cabinet structural strength height, divide the closing fast, divide closing stability good and can bear great electric current repulsion.

In this embodiment, as shown in fig. 3 and 5, the movable blade turret 11 is provided with a mounting groove 111, the grounding blade contact 12) is fixed in the mounting groove 111, and one end of the grounding blade contact 12 is provided with the contact 4 for contacting with the grounding switch 3. The switching-on process of the grounding switch 1 is as follows: the movable knife rotating frame 11 rotates to drive the grounding knife contact piece 12 to move, so that the contact 4 on the grounding knife contact piece 12 is contacted with the grounding knife switch 3 to realize switching on.

In this embodiment, as shown in fig. 1 to 3, a base 5 is further embedded between the bottoms of the two mounting plates 2, a tool post 6 is arranged on the base 5, a hinge hole coaxial with the rotation center of the movable tool rotating frame 11 is arranged on the tool post 6, and one end of the grounding tool contact 12 away from the contact 4 is hinged in the hinge hole on the tool post 6. The base 5 is embedded between the two mounting plates 2, and the mounting is convenient. The end of the grounding knife contact piece 12 far away from the contact 4 is hinged in a hinge hole on the knife holder 6, so that the moving knife rotating frame 11 rotates more stably, and can bear larger force, namely larger current repulsion force when extreme working conditions occur.

In this embodiment, as shown in fig. 1, 3 and 5, the grounding blade contact 12 includes two parallel contact bars 121, the two contact bars 121 are fixed in the mounting slot 111, the contact 4 is connected to one end of the two contact bars 121, and the other end of the two contact bars 121 is hinged in a hinge hole of the tool holder 6. Specifically, the two contact bars 121 are fixed in the mounting groove 111 by the pin 13. The two tentacles 121 are fixed in the mounting groove 111 through at least two pin shafts 13, so that the mounting and dismounting are facilitated.

In this embodiment, as shown in fig. 1, a contact block 31 is disposed at a position of the grounding switch 3 corresponding to the contact 4. The switching-on process of the grounding switch 1 is as follows: the movable knife rotating frame 11 rotates to drive the grounding knife contact piece 12 to move, so that the contact 4 on the grounding knife contact piece 12 is contacted with the contact block 31 on the grounding knife switch 3, and the switch-on is realized.

In this embodiment, the grounding blade contact 12 is provided with at least three grounding blade contacts, and each grounding blade contact 12 is distributed at intervals along the axial direction of the movable blade rotating frame 11. The grounding knife switch 3 is provided with contact blocks 31 corresponding to the positions of the contacts 4.

In this embodiment, as shown in fig. 1 and 2, an isolation knife switch 7 is arranged between the tops of the two mounting plates 2. The two mounting plates 2 are provided with insulating plates 8 at two sides of the isolation knife switch 7. A vacuum arc extinguish chamber 9 is formed between the two insulating plates 8 above the isolation switch 7. The insulating plate 8 is provided with a branch bus 81 and a mounting block 82, and the mounting block is provided with a mounting hole 83.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a 10kV aerifys circuit breaker for cabinet which characterized in that: including earthing switch (1) and two mounting panel (2) of interval arrangement, two it has earthing knife-switch (3) to inlay between the bottom of mounting panel (2), earthing switch (1) is including moving sword revolving rack (11) and locating earthing knife touching piece (12) on moving sword revolving rack (11), it can inlay between two mounting panel (2) to move sword revolving rack (11) with rotating.

2. The circuit breaker for 10kV gas-filled cabinet according to claim 1, characterized in that: move and be equipped with mounting groove (111) on sword revolving rack (11), ground connection sword contact (12) are fixed in mounting groove (111), the one end of ground connection sword contact (12) is equipped with contact (4) that are used for with ground connection switch (3) contact.

3. The circuit breaker for 10kV gas-filled cabinet according to claim 2, characterized in that: two still inlay between the bottom of mounting panel (2) has base (5), be equipped with blade holder (6) on base (5), be equipped with on blade holder (6) with move the coaxial hinge hole of centre of rotation of sword revolving rack (11), the one end that contact (4) were kept away from in the hinge hole on blade holder (6) to ground connection sword palpator (12).

4. The circuit breaker for 10kV gas-filled cabinet according to claim 3, characterized in that: the grounding knife contact piece (12) comprises two parallel contact strips (121), the two contact strips (121) are fixed in the mounting groove (111), the contact (4) is connected to one ends of the two contact strips (121), and the other ends of the two contact strips (121) are hinged to hinge holes in the knife holder (6).

5. The circuit breaker for 10kV gas-filled cabinet according to claim 4, characterized in that: the two contact strips (121) are fixed in the mounting groove (111) through a pin shaft (13).

6. The circuit breaker for 10kV gas-filled cabinet according to claim 2, characterized in that: and a contact block (31) is arranged at the position of the grounding disconnecting link (3) corresponding to the contact (4).

7. The circuit breaker for 10kV gas-filled cabinet according to claim 1, characterized in that: the grounding knife contact pieces (12) are at least three, and the grounding knife contact pieces (12) are distributed at intervals along the axial direction of the movable knife rotating frame (11).

8. The circuit breaker for a 10kV gas-filled cabinet according to any one of claims 1 to 7, characterized in that: an isolation disconnecting link (7) is arranged between the tops of the two mounting plates (2).

9. The circuit breaker for 10kV gas-filled cabinet according to claim 8, characterized in that: and two insulation plates (8) are arranged on the two sides of the isolation disconnecting link (7) of the two mounting plates (2).

10. The circuit breaker for 10kV gas-filled cabinet according to claim 9, characterized in that: and a vacuum arc-extinguishing chamber (9) is formed between the two insulating plates (8) above the isolation switch (7).