Safety arc suppression coil complete combination cabinet

Abstract

The utility model discloses a safe arc suppression coil complete combination cabinet, which comprises a fixed vertical plate, the front surface of the fixed vertical plate is fixedly connected with a horizontal fixed plate, the upper surface of the horizontal fixed plate is fixedly connected with a mounting seat, the upper surface of the mounting seat is fixedly connected with a main cabinet, and the upper surface of the main cabinet is fixedly connected with an arc suppression coil. The inner wall of the right side of the main cabinet is fixedly connected with copper rods, the number of the copper rods is four, the surfaces of the copper rods are wound with main coils, the inner wall of the left side of the main cabinet is fixedly connected with a grounding transformer box, and the grounding transformer box is connected with the copper rods; the sliding type cabinet body opening and closing mechanism is composed of the mounting base, the main cabinet, the horizontal guide rail, the reversible motor, the horizontal lead screw, the horizontal sliding block and the control cabinet, automatic opening and closing of the main cabinet and the control cabinet are facilitated, rapid overhaul of the interior of the combined cabinet is facilitated, and convenience is provided for daily maintenance of the combined cabinet; and the structure is firm, the installation is convenient, the cabinet body adopts a closed structure, and the safety is high.

Description

Technical Field

[0001] This utility model relates to the field of power safety cabinet technology, and in particular to a safety arc suppression coil complete set of cabinets. Background Technology

[0002] The existing safety arc suppression coil complete set of cabinets uses a cabinet door and door lock structure to open and close the cabinet. During maintenance, if the door lock malfunctions or the key is lost, the cabinet door will be difficult to open, causing difficulties in maintenance.

[0003] A Chinese patent discloses an "arc-suppressing high-voltage safety switchgear" with application number "CN202221548144.7". In use, it is not only easy to install and move, but also convenient to combine multiple cabinets, improving the stability of the installed cabinets. However, during routine maintenance, if the door lock malfunctions or the key is lost, the maintenance process becomes inconvenient, affecting the daily use of the switchgear. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a safe arc suppression coil complete set of cabinets. The cabinet consists of a mounting base, main cabinet, horizontal guide rail, reversible motor, horizontal lead screw, horizontal slider and control cabinet to form a sliding cabinet opening and closing mechanism, which facilitates the automatic opening and closing of the main cabinet and control cabinet, facilitates the rapid inspection and maintenance of the cabinet, and provides convenience for the daily maintenance of the cabinet. The structure is solid, easy to install, and the cabinet is closed, which ensures high safety.

[0005] This utility model also provides a complete set of safety arc suppression coil combination cabinets, including: a fixed vertical plate, a horizontal fixed plate fixedly connected to the front surface of the fixed vertical plate, a mounting base fixedly connected to the upper surface of the horizontal fixed plate, a main cabinet fixedly connected to the upper surface of the mounting base, four copper rods fixedly connected to the right inner wall of the main cabinet, a main coil wound on the surface of the copper rods, and a grounding transformer box fixedly connected to the left inner wall of the main cabinet, the grounding transformer box being connected to the copper rods; and horizontal guide rails fixedly connected to the upper surface of the horizontal fixed plate, the horizontal guide rails being symmetrically distributed. A reversible motor is fixedly connected inside the horizontal guide rail, which is located at the rear end of the horizontal guide rail. A horizontal lead screw is fixedly connected to the output end of the reversible motor. A horizontal slider is threadedly connected to the horizontal lead screw. A control cabinet is fixedly connected to the upper surface of the horizontal slider. Inside the control cabinet, from top to bottom, a circuit breaker, a contactor, a transformer, a current transformer, and a voltage transformer are fixedly connected in sequence. The contactor is connected to the circuit breaker, the transformer is connected to the contactor, the current transformer is connected to the transformer, and the voltage transformer is connected to the current transformer.

[0006] According to the present invention, a safety arc suppression coil assembly cabinet is provided, wherein a mounting vertical plate is fixedly connected to the rear surface of the fixed vertical plate, and the mounting vertical plate is provided with mounting holes located at the four corners of the mounting vertical plate. This facilitates the installation and fixing of the assembly cabinet.

[0007] According to the present invention, a safety arc-suppression coil assembly cabinet is provided, wherein the front surface of the fixed vertical plate is fixedly connected to the lower surface of the horizontal fixed plate by diagonal braces, and the diagonal braces are symmetrically distributed at the left and right ends of the fixed vertical plate, thereby ensuring structural stability and firmness.

[0008] According to the present invention, a safety-type arc-suppression coil assembly cabinet is provided, wherein a damping resistor box is fixedly connected to the lower surface of the main cabinet, and the damping resistor box is connected to a grounding transformer box. This prevents series resonance.

[0009] According to the present invention, a safety arc suppression coil assembly cabinet is provided, wherein the rear surface of the main cabinet is fixedly connected to the front surface of the fixed vertical plate, and a frame-shaped groove is provided at the front end of the main cabinet. This improves the stability of the cabinet closure.

[0010] According to the present invention, a safety arc suppression coil assembly cabinet is provided, wherein a retaining frame is fixedly connected to one end of the control cabinet near the main cabinet, and the retaining frame engages with a frame groove. This facilitates stable connection between the main cabinet and the control cabinet.

[0011] According to the present invention, a complete set of safe arc suppression coil assembly cabinet is provided, wherein the rear end of the horizontal guide rail is fixedly connected to the front surface of the mounting base, making the structure stable and firm. A horizontal groove is provided on the inner side wall of the horizontal guide rail to facilitate the limiting installation of the horizontal slider.

[0012] According to the present invention, a safety arc suppression coil assembly cabinet is provided, wherein a horizontal sliding rod is fixedly connected to the side surface of the horizontal slider, and the horizontal sliding rod slides within a horizontal groove. This facilitates the stable movement of the horizontal slider.

[0013] Beneficial effects:

[0014] 1. Compared with the existing technology, this safety arc suppression coil complete set of cabinets consists of a mounting base, main cabinet, horizontal guide rail, reversible motor, horizontal lead screw, horizontal slider and control cabinet to form a sliding cabinet opening and closing mechanism, which facilitates the automatic opening and closing of the main cabinet and control cabinet, facilitates the rapid inspection and maintenance of the cabinet, and provides convenience for the daily maintenance of the cabinet.

[0015] 2. Compared with existing technologies, this safety arc suppression coil complete set of cabinets has a robust structure, is easy to install, and the cabinet is enclosed with a closed structure, which ensures high safety. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a longitudinal three-dimensional cross-sectional structural diagram of a complete set of safety arc suppression coil combination cabinet according to the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of a complete set of safety arc suppression coil combination cabinet according to this utility model;

[0019] Figure 3 This is a schematic diagram of the main cabinet and control cabinet of a safety arc suppression coil assembly cabinet of this utility model in the open state;

[0020] Figure 4 This is a schematic diagram of the horizontal three-dimensional cross-sectional structure of a complete set of safety arc suppression coil combination cabinet according to the present invention.

[0021] Legend:

[0022] 1. Fixed vertical plate; 2. Main cabinet; 3. Control cabinet; 4. Horizontal fixed plate; 5. Horizontal lead screw; 6. Horizontal guide rail; 7. Horizontal slider; 8. Diagonal bar; 9. Mounting hole; 10. Mounting vertical plate; 11. Mounting base; 12. Reversible motor; 13. Main coil; 14. Grounding transformer box; 15. Damping resistor box; 16. Frame-type slot; 17. Clip frame; 18. Copper rod; 19. Circuit breaker; 20. Contactor; 21. Transformer; 22. Current transformer; 23. Voltage transformer; 24. Horizontal slide bar; 25. Horizontal slide groove. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figure 1 , Figure 2 and Figure 3This utility model discloses a safety arc suppression coil assembly cabinet, which includes a fixed vertical plate 1. A mounting vertical plate 10 is fixedly connected to the rear surface of the fixed vertical plate 1. The mounting vertical plate 10 has mounting holes 9 located at its four corners. A horizontal fixing plate 4 is fixedly connected to the front surface of the fixed vertical plate 1. The front surface of the fixed vertical plate 1 is fixedly connected to the lower surface of the horizontal fixing plate 4 via diagonal rods 8. The diagonal rods 8 are symmetrically distributed at the left and right ends of the fixed vertical plate 1. A mounting base 1 is fixedly connected to the upper surface of the horizontal fixing plate 4. 1. The main cabinet 2 is fixedly connected to the upper surface of the mounting base 11. The rear surface of the main cabinet 2 is fixedly connected to the front surface of the fixed vertical plate 1. The front end of the main cabinet 2 is provided with a frame-shaped groove 16. The inner right wall of the main cabinet 2 is fixedly connected with four copper rods 18. The surface of the copper rods 18 is wound with a main coil 13. The inner left wall of the main cabinet 2 is fixedly connected with a grounding transformer box 14. The grounding transformer box 14 is connected to the copper rods 18. The lower surface of the main cabinet 2 is fixedly connected with a damping resistor box 15. The damping resistor box 15 is connected to the grounding transformer box 14.

[0025] Specifically, when the current is transmitted to the inside of the main cabinet 2, it first reaches the copper rod 18. The main coil 13 will compensate the grounding capacitor current through the inductor current to achieve rapid extinguishing of the arc at the fault point. The grounding transformer box 14 will be connected to the main coil 13 through the copper rod 18 and provide an artificial neutral point for the neutral point ungrounded system. The damping resistor box 15 will suppress the resonant overvoltage and prevent the system from experiencing series resonance.

[0026] Reference Figure 1 , Figure 2 and Figure 4 A horizontal guide rail 6 is fixedly connected to the upper surface of a horizontal fixed plate 4. The horizontal guide rails 6 are symmetrically distributed at both ends of the horizontal fixed plate 4. The rear end of the horizontal guide rail 6 is fixedly connected to the front surface of the mounting base 11. A horizontal sliding groove 25 is provided on the inner side wall of the horizontal guide rail 6. A reversible motor 12 is fixedly connected inside the horizontal guide rail 6, located at the rear end of the horizontal guide rail 6. A horizontal lead screw 5 is fixedly connected to the output end of the reversible motor 12. A horizontal slider 7 is threadedly connected to the horizontal lead screw 5. A horizontal sliding rod 24 is fixedly connected to the side surface of the horizontal slider 7. The smooth rod 24 slides in the horizontal slide groove 25. The control cabinet 3 is fixedly connected to the upper surface of the horizontal slider 7. The end of the control cabinet 3 near the main cabinet 2 is fixedly connected to the frame 17, which engages with the frame groove 16. The inside of the control cabinet 3 is fixedly connected to the circuit breaker 19, contactor 20, transformer 21, current transformer 22 and voltage transformer 23 from top to bottom. The contactor 20 is connected to the circuit breaker 19, the transformer 21 is connected to the contactor 20, the current transformer 22 is connected to the transformer 21, and the voltage transformer 23 is connected to the current transformer 22.

[0027] Specifically, during the process of the control cabinet 3 and the main cabinet 2 docking and closing, the reversible motor 12 of the horizontal guide rail 6 will drive the horizontal lead screw 5 to rotate in the opposite direction. The horizontal lead screw 5 will drive the horizontal slider 7 to move. The horizontal slider 7 will drive the control cabinet 3 to move to the position where it abuts against the main cabinet 2. Similarly, the control cabinet 3 and the main cabinet 2 can be opened. The control cabinet 3 will monitor the power grid parameters in real time and automatically adjust the compensation state of the main coil 13.

[0028] Working principle: The safety-type arc suppression coil complete set of cabinets achieves arc suppression by dynamically compensating for the capacitive current during a single-phase ground fault in the power grid. When a single-phase ground fault occurs in the system, the microcomputer controller inside the cabinet monitors the neutral point displacement voltage and capacitive current in real time, automatically adjusts the inductance value of the main coil 13, and generates an inductive current that is opposite in phase to the capacitive current at the fault point, so that the residual current at the fault point approaches zero, thereby quickly extinguishing the arc and suppressing overvoltage. At the same time, the damping resistor box 15 suppresses resonance, protects the equipment and line safety, and ensures that the power grid can still provide power for a short time during a ground fault, thereby improving the reliability and safety of the system.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A safety-type arc suppression coil complete set of cabinet, characterized in that, include: A fixed vertical plate (1) is fixedly connected to a horizontal fixed plate (4) on its front surface. A mounting base (11) is fixedly connected to the upper surface of the horizontal fixed plate (4). A main cabinet (2) is fixedly connected to the upper surface of the mounting base (11). A copper rod (18) is fixedly connected to the inner right side of the main cabinet (2). There are four copper rods (18). A main coil (13) is wound around the surface of the copper rods (18). A grounding transformer box (14) is fixedly connected to the inner left side of the main cabinet (2). The grounding transformer box (14) is connected to the copper rods (18). A horizontal guide rail (6) is fixedly connected to the upper surface of a horizontal fixed plate (4). The horizontal guide rails (6) are symmetrically distributed at the left and right ends of the horizontal fixed plate (4). A reversible motor (12) is fixedly connected inside the horizontal guide rail (6). The reversible motor (12) is located at the rear end of the horizontal guide rail (6). A horizontal lead screw (5) is fixedly connected to the output end of the reversible motor (12). A horizontal slider (7) is threadedly connected to the horizontal lead screw (5). The horizontal slider (7) has... A control cabinet (3) is fixedly connected to the upper surface. Inside the control cabinet (3), a circuit breaker (19), a contactor (20), a transformer (21), a current transformer (22), and a voltage transformer (23) are fixedly connected from top to bottom. The contactor (20) is connected to the circuit breaker (19), the transformer (21) is connected to the contactor (20), the current transformer (22) is connected to the transformer (21), and the voltage transformer (23) is connected to the current transformer (22).

2. The safety-type arc suppression coil complete set of cabinets according to claim 1, characterized in that, The rear surface of the fixed vertical plate (1) is fixedly connected to the mounting vertical plate (10), and the mounting vertical plate (10) is provided with mounting holes (9), which are located at the four corners of the mounting vertical plate (10).

3. The safety-type arc suppression coil complete set of cabinets according to claim 1, characterized in that, The front surface of the fixed vertical plate (1) is fixedly connected to the lower surface of the horizontal fixed plate (4) by the diagonal rod (8), and the diagonal rod (8) is symmetrically distributed at the left and right ends of the fixed vertical plate (1).

4. A safety-type arc-suppression coil complete set of cabinets according to claim 1, characterized in that, A damping resistor box (15) is fixedly connected to the lower surface of the main cabinet (2), and the damping resistor box (15) is connected to the grounding transformer box (14).

5. A safety-type arc suppression coil complete set of cabinets according to claim 1, characterized in that, The rear surface of the main cabinet (2) is fixedly connected to the front surface of the fixed vertical plate (1), and the front end of the main cabinet (2) is provided with a frame-shaped groove (16).

6. A safety-type arc suppression coil complete set of cabinets according to claim 1, characterized in that, The control cabinet (3) is fixedly connected to a card frame (17) at one end near the main cabinet (2), and the card frame (17) is engaged with the frame groove (16).

7. A safety-type arc suppression coil complete set of cabinets according to claim 1, characterized in that, The rear end of the horizontal guide rail (6) is fixedly connected to the front surface of the mounting base (11), and the inner side wall of the horizontal guide rail (6) is provided with a horizontal groove (25).

8. A safety-type arc suppression coil complete set of cabinets according to claim 1, characterized in that, A horizontal slide rod (24) is fixedly connected to the side surface of the horizontal slider (7), and the horizontal slide rod (24) slides in the horizontal slide groove (25).

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