Novel looped network high-voltage switch cabinet with interlocking structure

Abstract

The utility model discloses a novel looped network high-voltage switch cabinet with an interlocking structure, which relates to the technical field of switch cabinets and comprises a frame composed of vertical rods, main cross rods and main longitudinal rods, side baffles and a top plate are arranged on the outer side of the frame, and an isolation assembly and a grounding knife assembly are fixedly mounted on the frame from top to bottom through bearing assemblies. A circuit breaker assembly is arranged between the isolation assembly and the grounding switch assembly, the circuit breaker assembly, the isolation assembly and the grounding switch assembly are electrically connected through wires, the bearing assembly comprises an auxiliary longitudinal rod and an auxiliary transverse rod, a groove-shaped piece is arranged at the vertical angle of the auxiliary longitudinal rod and the auxiliary transverse rod, and the groove-shaped piece is connected with the auxiliary longitudinal rod and the auxiliary transverse rod through bolts. According to the scheme, through mutual linkage arrangement of the circuit breaker assembly, the isolation assembly and the grounding switch assembly, maintenance can be facilitated, the safety of power transmission is further guaranteed through the arrangement, and through the arranged bearing assembly, during maintenance operation, single assemblies can be disassembled, and maintenance is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, specifically a novel ring network high-voltage switchgear with an interlocking structure. Background Technology

[0002] A ring main unit is an electrical device consisting of a set of high-voltage switchgear installed in a steel plate metal cabinet or assembled into a modular ring main power supply unit. Its core components use load switches and fuses. It has advantages such as simple structure, small size, low price, improved power supply parameters and performance, and improved power supply safety. To enhance safety, the ring main unit is equipped with five-proof interlocking.

[0003] When maintenance personnel operate high-voltage switchgear, for safety reasons, the grounding switch must be turned off before opening the cabinet door. However, existing grounding switches lack a corresponding interlocking structure with the cabinet door. If operators unknowingly operate or repair the switchgear without turning off the grounding switch, it is highly likely that they will accidentally enter a energized switchgear compartment, leading to a serious safety accident. To address this issue, we propose a novel ring network high-voltage switchgear with an interlocking structure. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of ring network high-voltage switchgear with an interlocking structure to solve the problem mentioned in the background art where, during the maintenance of high-voltage switchgear, operators may operate or repair the switchgear without turning off the grounding switch and without knowing it, which can easily lead to operators accidentally entering the energized switchgear compartment and causing a major safety accident.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel ring network high-voltage switchgear with an interlocking structure, comprising a frame composed of vertical rods, main horizontal rods, and main longitudinal rods, with side baffles and a top plate on the outside of the frame, and a five-proof interlocking assembly at the front of the frame, with an isolation assembly and a grounding switch assembly fixedly installed on the frame from top to bottom via a load-bearing assembly, and a circuit breaker assembly between the isolation assembly and the grounding switch assembly, wherein the circuit breaker assembly, the isolation assembly, and the grounding switch assembly are all electrically connected by wires;

[0006] The load-bearing component includes auxiliary longitudinal bars and auxiliary transverse bars. The auxiliary longitudinal bars and auxiliary transverse bars are provided with grooved parts at their vertical angles. The grooved parts are connected to the auxiliary longitudinal bars and auxiliary transverse bars by bolts. The auxiliary longitudinal bars are fixedly installed between adjacent main transverse bars by bolts. The auxiliary transverse bars are fixedly installed on the auxiliary longitudinal bars by bolts. The circuit breaker assembly, the isolation assembly, and the grounding switch assembly are all fixedly installed on the auxiliary transverse bars.

[0007] Preferably, the auxiliary crossbar is disposed between adjacent main crossbars, and the auxiliary crossbar and the main crossbar are parallel to each other.

[0008] Preferably, the auxiliary longitudinal rod has evenly spaced bolt holes for connecting the auxiliary crossbar, and the auxiliary longitudinal rod and the auxiliary crossbar are perpendicular to each other.

[0009] Preferably, the five-proof interlocking assembly, circuit breaker assembly, isolation assembly, and grounding switch assembly are all electrically connected by wires.

[0010] Preferably, the main crossbar has evenly spaced bolt holes for connecting the auxiliary longitudinal bars, and the main crossbar and the auxiliary longitudinal bars are perpendicular to each other.

[0011] Preferably, the auxiliary crossbar is located above the auxiliary longitudinal bar, and the length of the auxiliary crossbar is less than the length of the auxiliary longitudinal bar.

[0012] Preferably, both the auxiliary longitudinal rod and the auxiliary transverse rod have insertion holes on their sides for connecting bolts for the slotted parts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This new type of ring network high-voltage switchgear with interlocking structure allows for switching between power supply and power outage operations by operating the five-proof interlocking components. During power supply operation, the grounding switch component opens, the circuit breaker component closes, and the isolating component closes. During power outage operation, the circuit breaker component trips, and the lower end of the circuit breaker is de-energized. At this time, the isolating component opens, and the grounding switch component closes. This state facilitates maintenance, and the above settings further ensure the safety of power transmission.

[0015] 2. This new type of ring network high-voltage switchgear with interlocking structure has a load-bearing component with multiple insertion holes on the auxiliary and main crossbars. This facilitates component connection and position adjustment of the circuit breaker assembly, isolating assembly, and grounding switch assembly, making wiring operations easier. Furthermore, by installing the circuit breaker assembly, isolating assembly, and grounding switch assembly separately on their respective load-bearing components, individual components can be disassembled during maintenance, making maintenance more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the side baffle removal state of this utility model;

[0018] Figure 3 This is a schematic diagram of the side baffle structure on the right and rear sides of this utility model;

[0019] Figure 4 This is a schematic diagram of the frame structure of this utility model;

[0020] Figure 5 This is a top-section schematic diagram of the frame structure of this utility model;

[0021] Figure 6 For the present utility model Figure 5 Enlarged schematic diagram at point M.

[0022] In the diagram: 1. Frame; 11. Load-bearing component; 111. Main crossbar; 112. Auxiliary longitudinal bar; 113. Auxiliary crossbar; 114. Channel-shaped component; 115. Vertical bar; 116. Main longitudinal bar; 12. Side baffle; 3. Five-proof interlocking component; 4. Top plate; 5. Isolation component; 6. Grounding switch component; 7. Circuit breaker component. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figure 1-6 This utility model provides a technical solution: a novel ring network high-voltage switchgear with an interlocking structure, comprising a frame 1 composed of vertical rods 115, main horizontal rods 111 and main longitudinal rods 116. Side baffles 12 and top plates 4 are provided on the outside of the frame 1. The vertical rods 115, main horizontal rods 111 and main longitudinal rods 116 are all perforated C-shaped channel steel. By opening multiple mounting holes on the C-shaped channel steel, it is convenient to connect it with other components. A five-proof interlocking assembly 3 is provided at the front of the frame 1.

[0025] Please see Figure 2 and Figure 3 Among them, the frame 1 is fixedly installed with the isolation component 5 and the grounding switch component 6 from top to bottom through the bearing component 11. The circuit breaker component 7 is provided between the isolation component 5 and the grounding switch component 6. The circuit breaker component 7, the isolation component 5 and the grounding switch component 6 are all electrically connected by wires.

[0026] Specifically, the load-bearing assembly 11 includes auxiliary longitudinal rods 112 and auxiliary transverse rods 113. A slotted component 114 is provided at the vertical angle of the auxiliary longitudinal rods 112 and auxiliary transverse rods 113. Insertion holes for bolts connecting the slotted component 114 are provided on the sides of both the auxiliary longitudinal rods 112 and auxiliary transverse rods 113. The slotted component 114 is bolted to the auxiliary longitudinal rods 112 and auxiliary transverse rods 113. The auxiliary longitudinal rod 112 is bolted to adjacent main transverse rods 111, and the auxiliary transverse rod 113 is bolted to the auxiliary longitudinal rod 112. The circuit breaker assembly 7, the isolation assembly 5, and the grounding switch assembly 6 are all fixedly installed on the auxiliary transverse rod 113. The five-proof interlocking assembly 3 is electrically connected to the circuit breaker assembly 7, the isolation assembly 5, and the grounding switch assembly 6 via wires. During power supply operation, the grounding switch assembly 6 opens, the circuit breaker assembly 7 closes, and the isolation assembly 5 closes; during power de-energization operation, the circuit breaker assembly 7 trips, and there is no power at the lower end of the circuit breaker. At this time, the isolation assembly 5 opens, and the grounding switch assembly 6 closes. In this state, maintenance is convenient, and the above settings further ensure the safety of power transmission.

[0027] Please see Figure 5 and Figure 6 The auxiliary crossbar 113 is located between adjacent main crossbars 111, and the auxiliary crossbar 113 and the main crossbar 111 are parallel to each other. Both the auxiliary crossbar 113 and the main crossbar 111 are C-shaped channel steel. Bolt holes for connecting the auxiliary crossbar 113 are evenly distributed on the auxiliary longitudinal bar 112, and the auxiliary longitudinal bar 112 and the auxiliary crossbar 113 are perpendicular to each other. Bolt holes for connecting the auxiliary longitudinal bar 112 are evenly distributed on the main crossbar 111, and the main crossbar 111 and the auxiliary longitudinal bar 112 are perpendicular to each other. The auxiliary crossbar 113 is located above the auxiliary longitudinal bar 112, and the length of the auxiliary crossbar 113 is less than the length of the auxiliary longitudinal bar 112. By opening multiple insertion holes on the auxiliary crossbar 113 and the main crossbar 111, it is convenient to connect components and to easily adjust the positions of the circuit breaker assembly 7, the isolating assembly 5 and the grounding switch assembly 6, which facilitates the wiring operation between them. Furthermore, by installing the circuit breaker assembly 7, the isolating assembly 5 and the grounding switch assembly 6 in the corresponding positions of the bearing assembly 11, individual components can be disassembled during maintenance operations, making maintenance more convenient.

[0028] Working principle: This new type of ring network high-voltage switchgear with interlocking structure can switch between power supply and power outage operations by operating the five-proof interlocking component 3. During power supply operation, the grounding switch component 6 opens, the circuit breaker component 7 closes, and the isolation component 5 closes. During power outage operation, the circuit breaker component 7 trips, and there is no power at the lower end of the circuit breaker. At this time, the isolation component 5 opens, and the grounding switch component 6 closes. In this state, maintenance is convenient, and the above settings further ensure the safety of power transmission.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel ring network high-voltage switch cabinet with interlocking structure, comprising a frame (1) composed of vertical rods (115), main horizontal rods (111) and main longitudinal rods (116), the outer side of the frame (1) is provided with side baffles (12) and a top plate (4), the front of the frame (1) is provided with a five-proof interlocking assembly (3), characterized in that: The frame (1) is fixedly installed with the isolation assembly (5) and the grounding knife assembly (6) from top to bottom through the bearing assembly (11), the circuit breaker assembly (7) is arranged between the isolation assembly (5) and the grounding knife assembly (6), and the circuit breaker assembly (7), the isolation assembly (5) and the grounding knife assembly (6) are electrically connected through wires; The bearing assembly (11) comprises auxiliary vertical rods (112) and auxiliary horizontal rods (113), the auxiliary vertical rods (112) and the auxiliary horizontal rods (113) are provided with groove type pieces (114) at vertical angles, the groove type pieces (114), the auxiliary vertical rods (112) and the auxiliary horizontal rods (113) are connected through bolts, the auxiliary vertical rods (112) are fixedly installed between adjacent main horizontal rods (111) through bolts, the auxiliary horizontal rods (113) are fixedly installed on the auxiliary vertical rods (112) through bolts, and the circuit breaker assembly (7), the isolation assembly (5) and the grounding knife assembly (6) are fixedly installed on the auxiliary horizontal rods (113).

2. The novel ring network high voltage switchgear with interlocking structure according to claim 1, characterized in that: The auxiliary horizontal rods (113) are arranged between adjacent main horizontal rods (111), and the auxiliary horizontal rods (113) and the main horizontal rods (111) are parallel to each other.

3. The novel ring network high voltage switchgear with interlocking structure according to claim 1, characterized in that: The auxiliary vertical rods (112) are uniformly provided with bolt insertion holes for connecting the auxiliary horizontal rods (113), and the auxiliary vertical rods (112) and the auxiliary horizontal rods (113) are perpendicular to each other.

4. The novel ring network high voltage switchgear with interlocking structure according to claim 1, characterized in that: The five-prevention interlocking assembly (3), the circuit breaker assembly (7), the isolation assembly (5) and the grounding knife assembly (6) are electrically connected through wires.

5. The novel ring network high voltage switchgear with interlocking structure according to claim 1, characterized in that: The main horizontal rods (111) are uniformly provided with bolt insertion holes for connecting the auxiliary vertical rods (112), and the main horizontal rods (111) and the auxiliary vertical rods (112) are perpendicular to each other.

6. The novel ring network high voltage switchgear with interlocking structure according to claim 1, characterized in that: The auxiliary horizontal rods (113) are arranged above the auxiliary vertical rods (112), and the length of the auxiliary horizontal rods (113) is less than that of the auxiliary vertical rods (112).

7. The novel ring network high voltage switchgear with interlocking structure according to claim 1, characterized in that: The side surfaces of the auxiliary vertical rods (112) and the auxiliary horizontal rods (113) are provided with insertion holes for connecting bolts of the groove type pieces (114).

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