Pole-mounted circuit breaker

Abstract

The utility model relates to a pole-mounted circuit breaker with an anti-squirrel function. In an outdoor environment, small animals such as squirrels may climb a pole-mounted circuit breaker, so that interphase short circuit, damage or misoperation is caused, and normal operation of a power system is affected. The device comprises a mounting base, and is characterized in that three pole columns are uniformly arranged on the mounting base at intervals, one end of each pole column is connected with an upper wiring pile, the other end of each pole column is connected with a mutual inductor, the mutual inductor is connected with a lower wiring pile through an isolation disconnecting link, and the lower wiring pile is mounted on a cross arm through a supporting insulator; and the isolation cover covers the middle pole and the mutual inductor, the supporting insulator, the isolation disconnecting link, the lower wiring pile and the upper wiring pile which are connected with the middle pole. According to the utility model, small animals can be prevented from climbing and contacting the circuit breaker, so that the safety and reliability of a power system are improved.

Description

pole-mounted circuit breaker Technical Field

[0001] This utility model relates to the field of power equipment, specifically a pole-mounted circuit breaker with anti-squirrel function. Background Technology

[0002] Pole-mounted circuit breakers are common electrical devices used to control and protect power lines. However, in outdoor environments, small animals such as squirrels may climb on them, causing phase-to-phase short circuits, damage, or malfunctions, affecting the normal operation of the power system. Therefore, there is a need for a pole-mounted circuit breaker that can effectively prevent squirrels from climbing and contacting it. Summary of the Invention

[0003] This invention provides a squirrel-proof pole-mounted circuit breaker that can prevent small animals from climbing and touching the circuit breaker, thereby improving the safety and reliability of the power system.

[0004] This utility model adopts the following technical solution: a pole-mounted circuit breaker, including a mounting base, characterized in that three poles are evenly spaced on the mounting base, one end of each pole is connected to an upper terminal block, and the other end is connected to a current transformer, the current transformer is connected to a lower terminal block through an isolating switch, and the lower terminal block is mounted on a crossarm through a supporting insulator; it also includes an isolation cover, the isolation cover covering the middle pole, the current transformer connected to the middle pole, the supporting insulator, the isolating switch, the lower terminal block, and the upper terminal block.

[0005] Preferably, the isolation cover has a U-shaped structure with two sets of grooves at the bottom. The inner end face of one set of grooves is flat, and the inner end face of the other set of grooves is inclined.

[0006] Preferably, one set of grooves has a width that matches the crossarm, and the other set of grooves has a width that matches the base.

[0007] Preferably, the two ends of the base are provided with support frames on the same side, and the support frames are connected by crossbeams.

[0008] Preferably, the isolation cover is made of smooth, transparent PVC material.

[0009] This invention, by incorporating an isolation cover, effectively prevents small animals such as squirrels from contacting critical components of the circuit breaker, thereby avoiding phase-to-phase short circuits, damage, or misoperation caused by animals, and improving the operational stability and reliability of the pole-mounted circuit breaker. The isolation cover has a simple and reasonable overall structure, allowing for quick assembly and disassembly, and its positioning is stable and reliable. Attached Figure Description

[0010] Figure 1 is a schematic diagram of the structure of this utility model.

[0011] Figure 2 is a schematic diagram of the isolation cover of this utility model. Detailed Implementation

[0012] The present invention will be further described below with reference to specific embodiments.

[0013] As shown in Figure 1, a pole-mounted circuit breaker includes a mounting base 1, pole posts 2, current transformers 3, supporting insulators 4, isolating switches 5, lower terminals 6, upper terminals 7, isolation covers 8, crossarms 9, and support frames 10. Multiple pole posts 2 are evenly spaced on the mounting base 1. Each pole post 2 is connected to the upper terminal 7 at one end and to the current transformer 3 at the other end. The current transformer 3 is connected to the isolating switch 5, and the other end of the isolating switch 5 is connected to the lower terminal 6. The lower terminal 6 is mounted on the crossarm 9 via the supporting insulators 4. Support frames 10 are located on the same side at both ends of the base, and the crossarm 9 connects the two support frames 10. There are three sets of pole posts 2, current transformers 3, supporting insulators 4, isolating switches 5, lower terminals 6, and upper terminals 7.

[0014] The isolation cover 8 is installed between the first pole and the third pole, covering the second pole current transformer 3, the support insulator 4, the isolating switch 5, the lower terminal 6 and the upper terminal 7.

[0015] As shown in Figure 2, the isolation cover 8 has a U-shaped structure with two sets of grooves on the bottom two sides. The width of the first groove 6-1 is the same as that of the crossarm 9, and the width of the second groove 6-2 is the same as that of the base 1. The isolation cover 8 is secured to the crossarm 9 and the base 1 through these two sets of grooves.

[0016] Specifically, the inner end face of the first groove is inclined, while the inner end face of the second groove is flat. The different angles of the inner end faces allow for adaptation to crossbeams and bases with different tilt angles, resulting in more reliable fixing. Furthermore, assembly is performed solely through the grooves, eliminating the need for additional fasteners and significantly improving assembly and disassembly efficiency.

[0017] Specifically, the isolation cover 8 is made of smooth, transparent PVC material. This facilitates observation of the internal operating status of the circuit breaker and ensures operational reliability.

[0018] This invention, by incorporating an isolation cover, effectively prevents small animals such as squirrels from contacting critical components of the circuit breaker, thereby avoiding phase-to-phase short circuits, damage, or misoperation caused by animals, and improving the operational stability and reliability of the pole-mounted circuit breaker. The isolation cover has a simple and reasonable overall structure, allowing for quick assembly and disassembly, and its positioning is stable and reliable.

[0019] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A pole-mounted circuit breaker, including a mounting base (1), characterized in that... The mounting base has three poles evenly spaced on it. One end of each pole is connected to the upper terminal block (7) and the other end is connected to the current transformer (3). The current transformer is connected to the lower terminal block through the isolating switch (5). The lower terminal block (6) is mounted on the crossarm (9) through the supporting insulator (4). The base also includes an isolation cover (8), which covers the middle pole and the current transformer (3), supporting insulator (4), isolating switch (5), lower terminal block (6) and upper terminal block (7) connected to the middle pole.

2. The pole-mounted circuit breaker of claim 1, wherein The isolation cover (8) has a U-shaped structure, with two sets of grooves at the bottom. The inner end face of one set of inner grooves is a plane, and the inner end face of the other set of inner grooves is a slope.

3. The pole-mounted circuit breaker of claim 2, wherein One set of grooves has a width that matches the crossarm (9), and the other set of grooves has a width that matches the base.

4. The pole-mounted circuit breaker of claim 3, wherein The two ends of the base are provided with support frames (10) on the same side, and the support frames (10) are connected by crossbeams (9).

5. The pole-mounted circuit breaker according to claim 2, characterized in that... The isolation cover (8) is made of smooth, transparent PVC material.

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