CN218849353U

CN218849353U - Pole-mounted circuit breaker structure with lightning arrester

Info

Publication number: CN218849353U
Application number: CN202223575580.6U
Authority: CN
Inventors: 张珠文; 洪戏场; 杨树勋; 王黎; 肖化飞
Original assignee: Zhuhai Powint Electric Co ltd
Current assignee: Zhuhai Powint Electric Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-11
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a take circuit breaker structure on post of arrester relates to circuit breaker field on the post. The pole-mounted circuit breaker structure with the lightning arrester comprises a shell, wherein three pole columns are fixedly mounted at the top of the shell, the lightning arresters are assembled on two sides of each pole column, and a mounting mechanism is assembled between each lightning arrester and the shell; the side and the top of utmost point post are fixed mounting respectively has inlet wire end and leading-out terminal, the top of arrester is called high-voltage pole, the other end of arrester is called earthing pole, inlet wire end and leading-out terminal are connected through the wire with the high-voltage pole that is in both sides arrester respectively, the earthing pole of arrester passes through the switch-on of electrically conductive metal support and post upper circuit breaker shell. This take circuit breaker structure on post of arrester, the arrester of being convenient for is connected with circuit breaker on the post, and the earthing pole of arrester is through the unified ground connection of electrically conductive metal support, circuit breaker shell on the post and earthing rod, protects circuit breaker on the post.

Description

Pole-mounted circuit breaker structure with lightning arrester

Technical Field

The utility model relates to a circuit breaker technical field on the post specifically is a take circuit breaker structure on post of arrester.

Background

The pole-mounted circuit breaker is a switch capable of switching on and off a certain load current, and is core equipment in the field of distribution automation.

In recent years, accidents of burning-out of the on-column circuit breaker caused by lightning strike frequently occur, and the reason for frequent lightning strike of the on-column circuit breaker is that the on-column circuit breaker is not provided with the lightning arrester or the method for installing the lightning arrester is incorrect.

And cause "circuit breaker does not install the arrester on the post, perhaps the method of installing the arrester is incorrect" the reason all is relevant with the structure that does not have the direct mount arrester on the circuit breaker body on the post, but the installation of arrester is realized by the arrester installing support who is independent of circuit breaker body on the post, and the installation is comparatively loaded down with trivial details, and the cost is higher, therefore we have proposed a pole circuit breaker structure who takes the arrester.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a take circuit breaker structure on post of arrester has solved when installing the arrester through the arrester installing support that is independent of circuit breaker body on the post, and the installation of arrester is comparatively loaded down with trivial details, and the higher problem of cost.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a pole-mounted circuit breaker structure with an arrester comprises a shell, wherein three poles are fixedly mounted at the top of the shell, the arrester is assembled on two sides of each pole, and a mounting mechanism is assembled between the arrester and the shell;

the side and the top of the pole are respectively fixedly provided with a wire inlet end and a wire outlet end, the top end of the lightning arrester is called a high-voltage pole, and the wire inlet end and the wire outlet end are respectively connected with the high-voltage poles of the lightning arresters at two sides through wires.

Preferably, the outer surface of the housing is fixedly provided with a grounding post.

Preferably, installation mechanism includes the metal sheet, the metal sheet sets up to "Y" style of calligraphy, the end of forking of metal sheet laminates with the top of shell mutually to through the top fixed connection of two bolts and shell.

Preferably, the other end of the metal plate is provided with a jack, the bottom end of the lightning arrester is called as a grounding electrode, and the grounding electrode penetrates through the jack and extends downwards.

Preferably, the outer surface of the grounding electrode is in threaded connection with a nut, and the nut is tightly attached to the lower surface of the metal plate.

The utility model discloses a take circuit breaker structure on post of arrester, its beneficial effect who possesses as follows:

1. this take circuit breaker structure on post of arrester, the arrester is installed on the shell of circuit breaker on the post, be located the inlet wire end or the leading-out terminal of utmost point post, the high-voltage pole of arrester is connected to the inlet wire end or the leading-out terminal that correspond utmost point post respectively through the wire simultaneously, the inlet wire side to three-phase circuit respectively, the side is protected appearing, this structure lets the erection joint of arrester on the circuit breaker on the post become very simple, especially the earthing pole of arrester and the short-circuit low resistance switch-on of circuit breaker shell on the post, the earthing post unified ground connection on the rethread shell, guaranteed that the switch only bears the residual voltage of arrester to ground insulation, can prevent to burn out because of the circuit breaker on the post that the thunderbolt arouses.

2. The pole-mounted circuit breaker structure with the lightning arrester is characterized in that two fixing bolts are respectively welded and connected to a shell of the pole-mounted circuit breaker positioned at a wire inlet end and a wire outlet end of a pole, metal plates are mounted on the two fixing bolts, the other end of each metal plate is provided with an insertion hole of the lightning arrester, and a grounding electrode of the lightning arrester is inserted into the insertion hole and is fixed by a nut; to this end, the earth electrode of the arrester is connected to the case of the pole top circuit breaker and is grounded uniformly via the earth post of the case of the pole top circuit breaker.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention.

In the figure: 1. a housing; 101. a ground post; 2. a pole column; 201. a wire inlet end; 202. a wire outlet end; 3. a lightning arrester; 301. a high voltage pole; 4. a metal plate; 401. a bolt; 402. and a nut.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The embodiment of the application provides a take pole-mounted circuit breaker structure of arrester, solved when installing the arrester through the arrester installing support that is independent of the pole-mounted circuit breaker body, the installation of arrester is comparatively loaded down with trivial details, and the higher problem of cost, realized letting the erection joint of arrester 3 on the pole-mounted circuit breaker become very simple, especially earthing pole 302 of arrester 3 and the stub low resistance switch-on of pole-mounted circuit breaker shell 1, the unified ground connection of earthing post 101 on the rethread shell 1, guaranteed that the switch only bears the residual voltage of arrester 3 to ground insulation, can prevent to burn out because of the pole-mounted circuit breaker that the thunderbolt arouses.

In order to better understand the technical scheme, the technical scheme is described in detail in the following with reference to the attached drawings of the specification and specific embodiments.

The embodiment of the utility model discloses take circuit breaker structure on post of arrester.

According to the attached drawings 1-2, the lightning arrester comprises a shell 1, wherein three poles 2 are fixedly installed at the top of the shell 1, lightning arresters 3 are respectively assembled at two sides of each pole 2, and an installation mechanism is assembled between each lightning arrester 3 and the shell 1;

the side surface and the top of the pole 2 are respectively fixedly provided with a wire inlet end 201 and a wire outlet end 202, the top end of the lightning arrester 3 is called as a high-voltage pole 301, and the wire inlet end 201 and the wire outlet end 202 are respectively connected with the high-voltage poles 301 of the lightning arresters 3 at two sides through conducting wires.

The outer surface of the housing 1 is fixedly mounted with a ground post 101.

The lightning arrester 3 is installed on the shell 1 of the circuit breaker on the post, be located the inlet wire end 201 or the leading-out terminal 202 of utmost point post 2, simultaneously the high voltage pole 301 of lightning arrester 3 is connected to respectively on the inlet wire end 201 or the leading-out terminal 202 of corresponding utmost point post 2 through the wire, respectively to the inlet wire side of three phase circuit, the side is protected appears, this structure makes the erection joint of lightning arrester 3 on the circuit breaker on the post become very simple, especially the earthing pole 302 of lightning arrester 3 and the short-circuit low resistance switch-on of the circuit breaker shell 1 on the post, the unified ground connection of earthing post 101 on the rethread shell 1, guaranteed that the switch only bears the residual voltage of lightning arrester 3 to ground insulation, can prevent the circuit breaker burnout on the post that arouses because of the thunderbolt.

The mounting mechanism comprises a metal plate 4, the metal plate 4 is arranged in a Y shape, and the forked end of the metal plate 4 is attached to the top of the shell 1 and fixedly connected with the top of the shell 1 through two bolts 401.

The other end of the metal plate 4 is provided with a jack, the bottom end of the lightning arrester 3 is called as a grounding electrode 302, and the grounding electrode 302 penetrates through the jack and extends downwards.

A nut 402 is screwed on the outer surface of the ground electrode 302, and the nut 402 is tightly attached to the lower surface of the metal plate 4.

When the lightning arrester 3 is installed, at most six lightning arresters 3 can be installed at the wire inlet end 201 and the wire outlet end 202 of the three poles 2 to respectively protect the wire inlet end 201 and the wire outlet end 202 of the three-phase circuit, or the lightning arrester 3 can be installed only on one side of the wire inlet end 201 and the wire outlet end 202 according to actual needs, or the lightning arresters 3 are not installed on both sides of the wire inlet end 201 and the wire outlet end 202, which corresponds to four installation modes of the lightning arrester 3.

The working principle is as follows: the lightning arrester 3 is arranged on a shell 1 of the pole-mounted circuit breaker, is positioned at a wire inlet end 201 or a wire outlet end 202 of a pole 2, is respectively welded and connected with two fixing bolts 401 on the shell 1 of the pole-mounted circuit breaker positioned at the wire inlet end 201 and the wire outlet end 202 of the pole 2, a metal plate 4 is arranged on the two fixing bolts 401, the other end of the metal plate 4 is provided with an insertion hole of the lightning arrester 3, and a grounding electrode 302 of the lightning arrester 3 is inserted into the insertion hole and is fixed by a nut 402; to this end, the grounding pole 302 of the arrester 3 is connected to the case 1 of the pole top circuit breaker and is grounded through the grounding pole 101 of the case 1 of the pole top circuit breaker.

Meanwhile, the high-voltage pole 301 of the arrester 3 is respectively connected to the wire inlet end 201 or the wire outlet end 202 of the corresponding pole 2 through a wire to respectively protect the wire inlet side and the wire outlet side of a three-phase circuit, the structure enables the installation and connection of the arrester 3 on a pole-mounted circuit breaker to be very simple, particularly, the grounding pole 302 of the arrester 3 is connected with the short wire low resistance of the pole-mounted circuit breaker shell 1 and then is uniformly grounded through the grounding pole 101 on the shell 1, the condition that the switch is insulated to the ground and only bears the residual voltage of the arrester 3 is guaranteed, and the pole-mounted circuit breaker can be prevented from being burnt due to lightning stroke.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a take pole-mounted circuit breaker structure of arrester, includes shell (1), its characterized in that: the top of the shell (1) is fixedly provided with three poles (2), two sides of each pole (2) are respectively provided with an arrester (3), and an installation mechanism is arranged between each arrester (3) and the shell (1);

the side and the top of the pole (2) are respectively and fixedly provided with a wire inlet end (201) and a wire outlet end (202), the top end of the lightning arrester (3) is called as a high-voltage pole (301), and the wire inlet end (201) and the wire outlet end (202) are respectively connected with the high-voltage poles (301) of the lightning arresters (3) on two sides through wires.

2. The pole-mounted circuit breaker structure with an arrester as claimed in claim 1, wherein: and a grounding post (101) is fixedly arranged on the outer surface of the shell (1).

3. The pole-mounted circuit breaker structure with an arrester as claimed in claim 1, wherein: the installation mechanism comprises a metal plate (4), the metal plate (4) is arranged to be Y-shaped, the forked end of the metal plate (4) is attached to the top of the shell (1) and fixedly connected with the top of the shell (1) through two bolts (401).

4. The pole-mounted circuit breaker structure with an arrester of claim 3, wherein: the jack has been seted up to the other end of metal sheet (4), the bottom of arrester (3) is called earthing pole (302), earthing pole (302) run through the jack and downwardly extending.

5. The pole-mounted circuit breaker structure with an arrester of claim 4, wherein: the outer surface of the grounding electrode (302) is in threaded connection with a nut (402), and the nut (402) is tightly attached to the lower surface of the metal plate (4).