Self-powered 24kv pole-mounted circuit breaker

Abstract

The utility model discloses a self-powered 24kv pole-mounted circuit breaker, which comprises a base, a second circuit breaker is fixedly mounted in the middle of the surface of the base, a first circuit breaker is fixedly mounted on one side of the second circuit breaker, and a third circuit breaker is fixedly mounted on the other side of the second circuit breaker. The front portions of the first circuit breaker, the second circuit breaker and the third circuit breaker are covered with a front protective net, and the rear portions of the first circuit breaker, the second circuit breaker and the third circuit breaker are covered with a rear protective net. According to the self-powered 24kv pole-mounted circuit breaker, the protective screen frame is integrally arranged in a plastic grid shape, is non-conductive, covers the outer side surfaces of the first circuit breaker, the second circuit breaker and the third circuit breaker, can protect the first circuit breaker, the second circuit breaker and the third circuit breaker, and can prevent wild animals or domestic pets from being in contact with the pole-mounted circuit breaker, so that the safety of the pole-mounted circuit breaker is improved, and the service life of the pole-mounted circuit breaker is prolonged. And electrical accidents such as short circuit and tripping caused by animal touch are avoided.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to a self-powered 24kv pole-mounted circuit breaker. Background Technique

[0002] The working principle of the self-powered 24kv pole-mounted circuit breaker is as follows: Detect current: The magnitude of the current in the line is monitored in real time through devices such as current transformers. Judge abnormality: When a fault occurs in the line, such as a short circuit or overload, the current will change accordingly. In case of a short circuit, the current will increase sharply instantaneously; in case of an overload, the current will exceed the rated value for a long time and continue to increase. Trigger action: Short-circuit situation: The magnetic field generated by a large current (usually 10 to 12 times the rated current) overcomes the acting force of the counter-force spring, causing the release to pull the operating mechanism to act quickly, realizing instantaneous tripping of the switch, so as to quickly cut off the short-circuit fault current and prevent greater damage to the line and equipment. Overload situation: As the current increases, the heat generation intensifies, and the bimetallic strip deforms due to heat. When the deformation reaches a certain degree, it pushes the operating mechanism to act. And the greater the current, the faster the bimetallic strip deforms and the shorter the action time, thereby cutting off the overload current and protecting the line and equipment from overload damage.

[0003] For pole-mounted circuit breakers, in the outdoor environment, the activities of personnel are relatively complex, and there may be a situation where non-professionals accidentally approach the pole-mounted circuit breaker, resulting in an electric shock hazard. In the outdoor environment, various external forces may be encountered, such as falling branches, rolling stones, and items thrown by people, reducing the service life of the equipment. Content of the Utility Model

[0004] The purpose of the utility model is to provide a self-powered 24kv pole-mounted circuit breaker to solve the defects mentioned in the above background technique.

[0005] To achieve the above purpose, a self-powered 24kv pole-mounted circuit breaker is provided, including a base. The middle part of the surface of the base is fixedly installed with a second circuit breaker, and a first circuit breaker is fixedly installed on one side of the second circuit breaker. At the same time, a third circuit breaker is fixedly installed on the other side of the second circuit breaker. At the same time, the front parts of the first circuit breaker, the second circuit breaker, and the third circuit breaker are covered with a front protection net, and the rear parts of the first circuit breaker, the second circuit breaker, and the third circuit breaker are covered with a rear protection net.

[0006] Preferably, both sides of the bottom of the base are fixedly installed with bottom plates, and two groups of installation holes are opened on the bottom plates. At the same time, two groups of fixing pieces are fixedly installed on both sides of the surface of the base, and fixing holes are opened on the fixing pieces.

[0007] Preferably, both the front protection net and the rear protection net are made of plastic material and are in a grid shape, and three groups of positioning pieces are evenly installed at the bottom of the front protection net and the rear protection net.

[0008] Preferably, a perforation is formed on the positioning piece, and the positioning piece covers the surface of the base and is fixed by screwing with a fixing bolt. At the same time, the front protection net and the rear protection net are detachable structures on the surface of the base.

[0009] Preferably, the outer sides of the first circuit breaker, the second circuit breaker and the third circuit breaker are wrapped with a protection net frame, and the protection net frame mainly includes a front protection net and a rear protection net. The front protection net and the rear protection net are combined into a cuboid shape.

[0010] Preferably, four groups of positioning cylinders are evenly installed on the top of the front protection net, and four groups of positioning columns are evenly and fixedly arranged on the top of the rear protection net. At the same time, the sizes of the positioning columns and the positioning cylinders are adapted to each other, and the positioning columns are inserted into the interior of the positioning cylinders. The front protection net and the rear protection net are positioned and installed through the four groups of positioning columns and positioning cylinders.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The overall protection net frame is arranged in a plastic mesh shape, which is non-conductive and covers the outer surfaces of the first circuit breaker, the second circuit breaker and the third circuit breaker, and can protect the first circuit breaker, the second circuit breaker and the third circuit breaker. The protection net frame can prevent wild animals or domestic pets from contacting the pole-mounted circuit breaker, avoiding electrical accidents such as short circuits and tripping caused by animal contact, and ensuring the stable operation of the power system; the protection net frame can provide a physical barrier for the pole-mounted circuit breaker, reduce the direct impact of these external forces on the equipment, and reduce the probability of equipment damage; it can prevent sundries such as leaves and plastic bags from entering the interior of the circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a front view schematic diagram of the structure of the present utility model;

[0013] Figure 2 is Figure 1 the bottom view of

[0014] Figure 3 is Figure 1 the top view of

[0015] Figure 4 is the bottom view of the installation structure of the three groups of circuit breakers.

[0016] Reference numerals in the drawings: 1, base; 2, fixing piece; 3, bottom plate; 4, first circuit breaker; 41, second circuit breaker; 42, third circuit breaker; 5, front protection net; 6, rear protection net; 7, positioning piece; 8, positioning cylinder; 9, positioning column; 10, protection net frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-4 , the present utility model provides a self-powered 24kv pole-mounted circuit breaker, which includes a base 1. A second circuit breaker 41 is fixedly installed in the middle of the surface of the base 1. A first circuit breaker 4 is fixedly installed on one side of the second circuit breaker 41. At the same time, a third circuit breaker 42 is fixedly installed on the other side of the second circuit breaker 41. At the same time, a front protection net 5 covers the front parts of the first circuit breaker 4, the second circuit breaker 41 and the third circuit breaker 42, and a rear protection net 6 covers the rear parts of the first circuit breaker 4, the second circuit breaker 41 and the third circuit breaker 42.

[0019] Working principle: When in use, hold the front protection net 5, cover the three groups of positioning pieces 7 at the bottom of the front protection net 5 on the surface of the base 1, and fixedly connect them through three groups of bolts. At the same time, cover the three groups of positioning pieces 7 at the bottom of the rear protection net 6 on the surface of the base 1, and fixedly connect them through three groups of bolts. The rear protection net 6 and the front protection net 5 are combined to form a protection net frame 10. The protection net frame 10 is integrally arranged in a plastic mesh shape and is non-conductive. It covers the outer surfaces of the first circuit breaker 4, the second circuit breaker 41, and the third circuit breaker 42, and can perform protection work on the first circuit breaker 4, the second circuit breaker 41, and the third circuit breaker 42. The protection net frame 10 can prevent wild animals or domestic pets from coming into contact with the pole-mounted circuit breaker, avoiding electrical accidents such as short circuits and tripping caused by animal touch, and ensuring the stable operation of the power system; the protection net frame 10 can provide a physical barrier for the pole-mounted circuit breaker, reduce the direct impact of these external forces on the equipment, and reduce the probability of equipment damage; it can block sundries such as leaves and plastic bags from entering the circuit breaker. The protection net itself can be used as an obvious sign to remind people that there is high-voltage equipment here and do not approach; the eye-catching protection net can improve people's safety awareness and reduce the occurrence of accidents; four groups of positioning cylinders 8 are evenly installed on the top of the front protection net 5, and four groups of positioning columns 9 are evenly and fixedly arranged on the top of the rear protection net 6. The front protection net 5 and the rear protection net 6 are positioned and installed through the four groups of positioning columns 9 and positioning cylinders 8.

[0020] Both sides of the bottom of the base 1 are fixedly installed with bottom plates 3, and two installation holes are opened on the bottom plates 3. At the same time, two groups of fixing pieces 2 are fixedly installed on both sides of the surface of the base 1, and fixing holes are opened on the fixing pieces 2.

[0021] As a preferred embodiment, both the front protection net 5 and the rear protection net 6 are made of plastic and are in a grid shape, and three positioning pieces 7 are evenly installed at the bottom of the front protection net 5 and the rear protection net 6.

[0022] Perforations are formed on the positioning piece 7, and the positioning piece 7 covers the surface of the base 1 and is fixed by screwing with a fixing bolt. At the same time, the front protection net 5 and the rear protection net 6 are detachable structures on the surface of the base 1.

[0023] As a preferred embodiment, a protection net frame 10 is wrapped around the outside of the first circuit breaker 4, the second circuit breaker 41 and the third circuit breaker 42. The protection net frame 10 mainly includes a front protection net 5 and a rear protection net 6. The front protection net 5 and the rear protection net 6 are combined into a cuboid shape.

[0024] Four positioning cylinders 8 are evenly installed at the top of the front protection net 5, and four positioning columns 9 are evenly and fixedly arranged at the top of the rear protection net 6. At the same time, the dimensions of the positioning column 9 and the positioning cylinder 8 are adapted to each other, and the positioning column 9 is inserted into the inside of the positioning cylinder 8. The front protection net 5 and the rear protection net 6 are positioned and installed through the four positioning columns 9 and the positioning cylinders 8.

[0025] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-powered 24 kV pole-mounted circuit breaker, comprising a base (1), characterized in that: In the middle of the surface of the base (1), a second circuit breaker (41) is fixedly installed, and a first circuit breaker (4) is fixedly installed on one side of the second circuit breaker (41). At the same time, a third circuit breaker (42) is fixedly installed on the other side of the second circuit breaker (41). At the same time, the front of the first circuit breaker (4), the second circuit breaker (41), and the third circuit breaker (42) is covered with a front protective net (5), and the rear of the first circuit breaker (4), the second circuit breaker (41), and the third circuit breaker (42) is covered with a rear protective net (6).

2. The self-powered 24 kV pole-mounted circuit breaker according to claim 1, wherein: On both sides of the bottom of the base (1), bottom plates (3) are fixedly installed, and two sets of mounting holes are opened on the bottom plates (3). At the same time, two sets of fixing pieces (2) are fixedly installed on both sides of the surface of the base (1), and fixing holes are opened on the fixing pieces (2).

3. A self-powered 24 kV pole-mounted circuit breaker according to claim 1, characterized in that: Both the front protective net (5) and the rear protective net (6) are made of plastic material and are arranged in a grid shape, and three positioning pieces (7) are evenly installed at the bottom of the front protective net (5) and the rear protective net (6).

4. The self-powered 24 kV pole-mounted circuit breaker according to claim 3, characterized in that: Perforations are opened on the positioning pieces (7), and the positioning pieces (7) cover the surface of the base (1) and are fixedly connected by fixing bolts. At the same time, the front protective net (5) and the rear protective net (6) are detachable structures on the surface of the base (1).

5. A self-powered 24 kV pole-mounted circuit breaker according to claim 1, characterized in that: The outer sides of the first circuit breaker (4), the second circuit breaker (41), and the third circuit breaker (42) are wrapped with a protective net frame (10), and the protective net frame (10) includes a front protective net (5) and a rear protective net (6). The front protective net (5) and the rear protective net (6) are combined together to form a cuboid shape.

6. A self-powered 24 kV pole-mounted circuit breaker according to claim 5, characterized in that: Four positioning cylinders (8) are evenly installed at the top of the front protective net (5), and four positioning columns (9) are fixedly arranged at the top of the rear protective net (6). At the same time, the sizes of the positioning columns (9) and the positioning cylinders (8) are adapted to each other, and the positioning columns (9) are inserted into the internal parts of the positioning cylinders (8). The front protective net (5) and the rear protective net (6) are positioned and installed through four positioning columns (9) and positioning cylinders (8).

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