Adjustable environment-friendly gas inflation cabinet

Abstract

An adjustable environment-friendly gas inflation cabinet comprises a gas box and a circuit breaker, a circuit breaking assembly is installed in the gas box, the top of the circuit breaking assembly is connected with a wire inlet sleeve inserted into the gas box, and the bottom of the circuit breaking assembly is connected with a wire outlet sleeve inserted into the gas box; the circuit breaking assembly comprises a first disconnecting switch, a circuit breaker and a second disconnecting switch, the circuit breaker is arranged between the first disconnecting switch and the second disconnecting switch, and the first disconnecting switch or the second disconnecting switch is connected with the circuit breaker through a wire; the first isolating switch comprises an upper isolating contact, a first isolating blade and an upper grounding contact, and the first isolating switch is arranged between the upper isolating contact and the upper grounding contact; the second isolation switch comprises a lower isolation contact, a second isolation blade and a lower grounding contact. The first isolation switch is arranged between the upper isolation contact and the upper grounding contact. Through the multi-station disconnecting switch, more flexible and efficient control of the circuit is realized, and the safety of operation and maintenance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power switch equipment, in particular to an adjustable environmentally friendly gas-filled switchgear cabinet. Background Technique

[0002] In recent years, with the rapid development of the power industry, the safety and environmental friendliness of power switch equipment have become the focus of attention in the power industry. The gas-filled switchgear cabinet has a compact design and flexible operation, and can adapt to different application occasions, especially in harsh environments such as plateaus, coasts, sandy and dusty areas, mines and other regions. This compact design not only reduces space requirements but also enables the gas-filled switchgear cabinet to work stably in various complex environments.

[0003] Currently, the gas-filled switchgear cabinet mostly adopts a single disconnector design for switch control, with low operation safety, which is not conducive to maintenance personnel to perform equipment inspection and maintenance. Content of the Utility Model

[0004] The purpose of the utility model is to provide an adjustable environmentally friendly gas-filled switchgear cabinet to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] An adjustable environmentally friendly gas-filled switchgear cabinet, including a gas box and a circuit breaker. The circuit breaker assembly is installed in the gas box. The top of the circuit breaker assembly is connected to the incoming line bushing inserted in the gas box, and the bottom is connected to the outgoing line bushing inserted in the gas box.

[0007] The circuit breaker assembly includes a first disconnector, a circuit breaker and a second disconnector. The circuit breaker is arranged between the first disconnector and the second disconnector. The first disconnector or the second disconnector is connected to the circuit breaker through a wire.

[0008] The first disconnector includes an upper isolation contact, a first isolation blade and an upper grounding contact. The first disconnector is arranged between the upper isolation contact and the upper grounding contact.

[0009] The second disconnector includes a lower isolation contact, a second isolation blade and a lower grounding contact. The first disconnector is arranged between the upper isolation contact and the upper grounding contact.

[0010] In a possible implementation manner, the number of the first disconnectors is at least two, and each of the first disconnectors is arranged in a straight line.

[0011] In a possible implementation manner, the number of the incoming line bushings is the same as the number of the first disconnectors.

[0012] In a possible implementation manner, there are at least two of the second disconnectors, and each of the second disconnectors is arranged in a straight line.

[0013] In a possible implementation manner, the circuit breaker assembly includes a vacuum interrupter chamber, and the vacuum interrupter chamber is arranged near the upper grounding contact.

[0014] In a possible implementation manner, the outgoing line bushing is connected to the second disconnector through a main busbar.

[0015] In a possible implementation manner, the first disconnector is connected to a first disconnector controller, the second disconnector is connected to a second disconnector controller, the circuit breaker is connected to a circuit breaker controller, and the first disconnector controller, the circuit breaker controller, and the second disconnector controller are sequentially fixed on the outer wall of the gas tank.

[0016] Compared with the prior art, the present utility model has the following advantages:

[0017] Through the multi-station disconnectors, more flexible and efficient control of the circuit is achieved, and the safety of operation and maintenance is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is Figure 1 a schematic diagram of the overall structure of the circuit breaker assembly in the interruption;

[0020] Figure 3 is Figure 2 a side view of

[0021] In the figure: 1, circuit breaker assembly; 2, incoming line bushing; 3, outgoing line bushing; 4, main busbar; 5, gas tank; 6, first disconnector controller; 7, circuit breaker controller; 8, second disconnector controller; 10, first disconnector; 11, upper isolation contact; 12, first isolation blade; 13, upper grounding contact; 20, second disconnector; 21, lower isolation contact; 22, second isolation blade; 23, lower grounding contact; 30, circuit breaker; 31, vacuum interrupter chamber. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following describes in detail the specific implementation manners, structures, features, and effects according to the present utility model in combination with the accompanying drawings and preferred embodiments.

[0023] As Figures 1 - 3As shown in the figure, an adjustable environmental protection gas-filled switch cabinet includes a gas box 5 and a circuit breaker assembly 1. The circuit breaker assembly 1 is installed in the gas box 5. The top of the circuit breaker assembly 1 is connected to an incoming line bushing 2 inserted into the gas box 5, and the bottom is connected to an outgoing line bushing 3 inserted into the gas box 5. The circuit breaker assembly 1 includes a first disconnecting switch 10, a circuit breaker 30, and a second disconnecting switch 20. The circuit breaker 30 is arranged between the first disconnecting switch 10 and the second disconnecting switch 20. The first disconnecting switch 10 or the second disconnecting switch 20 is connected to the circuit breaker 30 through a wire. The first disconnecting switch 10 includes an upper isolating contact 11, a first isolating blade 12, and an upper grounding contact 13. The first disconnecting switch 10 is arranged between the upper isolating contact 11 and the upper grounding contact 13. The second disconnecting switch 20 includes a lower isolating contact 21, a second isolating blade 22, and a lower grounding contact 23. The first disconnecting switch 10 is arranged between the upper isolating contact 11 and the upper grounding contact 13. The outgoing line bushing 3 is connected to the second disconnecting switch 20 through a main bus 4.

[0024] Among them, the first disconnecting switch 10 and the second disconnecting switch 20 can adopt the same structure. During use, both the first isolating blade 12 and the second isolating blade 22 can stay at three different positions, namely "closed", "isolated", and "grounded". Through the position of the disconnecting switch, flexible control of the circuit can be achieved, and various safe operation and maintenance environments can be realized. The gas box 5 adopts a sealed structure to isolate the external environment. The gas box 5 is filled with environmental protection gas, such as dry air gas or other environmental protection insulating gases, as the insulating medium of the equipment.

[0025] In order to adjust the energized state of the gas-filled switch cabinet more flexibly, there are at least two first disconnecting switches 10, and each of the first disconnecting switches 10 is arranged in a straight line. There are at least two second disconnecting switches 20, and each of the second disconnecting switches 20 is arranged in a straight line. The number of the incoming line bushings 2 is the same as the number of the first disconnecting switches 10.

[0026] Specifically, as Figure 2 shown, both the first disconnecting switch 10 and the second disconnecting switch 20 are three. When closing the switch is required, both the first disconnecting switch 10 and the second disconnecting switch 20 on the same line are placed in the closing position and then the circuit breaker is closed. When opening the switch is required, first open the circuit breaker, and then place both disconnecting switches in the opening position. When isolation or grounding operations are required, the position of one or two disconnecting switches can be adjusted as needed. The disconnecting switches at different positions can be flexibly adjusted according to the actual working conditions.

[0027] The disconnection assembly 1 further includes a vacuum interrupter 31, which is arranged near the upper grounding contact 13. The vacuum interrupter 31 can quickly extinguish the arc and suppress the current after the medium and high voltage circuit cuts off the power supply by virtue of the excellent insulation of the vacuum inside the tube.

[0028] In order to control the disconnector and the circuit breaker, the first disconnector 10 is connected to the first disconnector controller 6, the second disconnector 20 is connected to the second disconnector controller 8, and the circuit breaker 30 is connected to the circuit breaker controller 7. The first disconnector controller 6, the circuit breaker controller 7, and the second disconnector controller 8 are sequentially fixed on the outer wall of the gas tank 5. Commercial controllers are used for the above-mentioned respective controllers, and the control method also uses the conventional control method in the art to control the position of the disconnector and the state of the circuit breaker.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", "left and right", "front and back", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "set", "connected", "fixed", "swivelly connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The above is only the preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Although the present invention has been disclosed as above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content without departing from the technical solution of the present invention. However, as long as it does not depart from the technical solution content of the present invention, any brief modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An adjustable environmental protection gas-filled cabinet, characterized in that, It includes an air tank (5) and a disconnection component (1). The disconnection component (1) is installed inside the air tank (5). The top of the disconnection component (1) is connected to an incoming line bushing (2) inserted into the air tank (5), and the bottom is connected to an outgoing line bushing (3) inserted into the air tank (5). The disconnection component (1) includes a first disconnecting switch (10), a circuit breaker (30), and a second disconnecting switch (20). The circuit breaker (30) is arranged between the first disconnecting switch (10) and the second disconnecting switch (20). The first disconnecting switch (10) or the second disconnecting switch (20) is connected to the circuit breaker (30) through a wire. The first disconnecting switch (10) includes an upper isolating contact (11), a first isolating blade (12), and an upper earthing contact (13). The first disconnecting switch (10) is arranged between the upper isolating contact (11) and the upper earthing contact (13). The second disconnecting switch (20) includes a lower isolating contact (21), a second isolating blade (22), and a lower earthing contact (23). The first disconnecting switch (10) is arranged between the upper isolating contact (11) and the upper earthing contact (13).

2. The adjustable environmental protection gas-filled cabinet according to claim 1, characterized in that, There are at least two first disconnecting switches (10), and each of the first disconnecting switches (10) is arranged in a straight line.

3. The adjustable environmentally friendly gas-filled switchgear according to claim 2, wherein, The number of the incoming line bushings (2) is the same as the number of the first disconnecting switches (10).

4. The adjustable environmental protection gas-filled cabinet according to claim 1, wherein, There are at least two second disconnecting switches (20), and each of the second disconnecting switches (20) is arranged in a straight line.

5. The adjustable environmental protection gas-filled cabinet according to claim 1, characterized in that, The disconnection component (1) includes a vacuum interrupter (31), and the vacuum interrupter (31) is arranged near the upper earthing contact (13).

6. The adjustable environmentally friendly gas-filled switchgear according to claim 1, characterized in that The outgoing line bushing (3) is connected to the second disconnecting switch (20) through a main busbar (4).

7. The adjustable environmental protection gas-filled cabinet according to claim 1, characterized in that, The first disconnecting switch (10) is connected to a first disconnecting switch controller (6), the second disconnecting switch (20) is connected to a second disconnecting switch controller (8), the circuit breaker (30) is connected to a circuit breaker controller (7), and the first disconnecting switch controller (6), the circuit breaker controller (7), and the second disconnecting switch controller (8) are sequentially fixed on the outer wall of the air tank (5).

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