High-voltage switch cabinet with grounding protection
By introducing multiple sets of grounding plates and grounding control and monitoring structures into the high-voltage switchgear, the grounding status is monitored in real time, which solves the problem of insufficient protection of existing high-voltage switchgear during grounding faults, realizes rapid discharge of fault current, and improves equipment safety and reliability.
Patent Information
- Application Number
- CN202520010603.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing high-voltage switchgear cannot effectively protect equipment and personnel safety in a timely manner when faced with excessive grounding resistance, grounding line breaks or short circuits, especially when the grounding resistance increases due to aging or corrosion of the grounding line, it cannot quickly discharge fault current.
A high-voltage switchgear with grounding protection was designed, which adopts multiple sets of grounding plates and an optimized grounding line design. Combined with a grounding control and monitoring structure, including grounding wires, protective switches and wire monitoring electrical components, it monitors the grounding current, voltage and resistance values in real time, issues early warning signals in a timely manner, and achieves rapid switching on and off through the protective switches to reduce grounding resistance.
It enables rapid discharge of fault current during grounding faults, protecting the internal electrical components of the switchgear, improving the safety and reliability of the equipment, and reducing equipment damage and power outage time.
Smart Images
Figure CN223713327U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electrical equipment field especially relates to a high voltage switchgear with earthing protection. BACKGROUND
[0002] The high voltage switchgear bears the vital role in the electric power system, however, the existing high voltage switchgear earthing protection has many deficiencies. The traditional earthing protection device is often single structure, can only provide the basic earthing passage, when facing the complex fault condition, such as earthing resistance is too big, earthing line circuit breaker or short circuit, cannot protect the equipment and personnel safety in time effectively. For example, when the earthing line appears the aging, corrosion and leads to the earthing resistance increase because of long-term operation, cannot discharge the fault current quickly when the system occurs the earthing fault, makes the internal electrical element of switch cabinet can be damaged because of the overvoltage, for this, design a kind of high voltage switchgear with earthing protection. SUMMARY
[0003] The utility model discloses a kind of high voltage switchgears with earthing protection, to solve above-mentioned technical problem, to achieve above-mentioned purpose, the utility model uses following technical scheme:
[0004] A kind of high voltage switchgear with earthing protection, including switch cabinet body, switch cabinet door, earthing control panel, earthing pole plate, the switch cabinet door is hinged to the front side of switch cabinet body, the earthing control panel is fixed on switch cabinet door, the earthing pole plate is provided with multiple groups, multiple groups of earthing pole plate are arranged in the bottom side of switch cabinet body, the inner bottom side of switch cabinet body is provided with hidden cabinet door, the bottom side of hidden cabinet door is provided with structure fixed plate, the structure fixed plate is fixed with earthing control monitoring structure.
[0005] On the basis of above technical scheme, the rear side of hidden cabinet door is hinged to the rear wall of switch cabinet body, lifting handle is provided on hidden cabinet door, and earthing wire perforation is opened on hidden cabinet door, the structure fixed plate is transversely fixed on the two side walls of switch cabinet body, one side of earthing control monitoring structure passes through earthing wire perforation, the other side of earthing control monitoring structure is connected to earthing pole plate.
[0006] On the basis of above technical scheme, the earthing control monitoring structure has earthing wire, protection switch, wire monitoring electrical component, the earthing wire is connected to the two sides of protection switch, the wire monitoring electrical component is arranged on the outside of earthing wire on the two sides of protection switch, and wire monitoring electrical component is electrically connected to earthing control panel on switch cabinet door, the protection switch is fixed on structure fixed plate, one end of earthing wire passes through earthing wire perforation, the other end of earthing wire is connected to earthing pole plate.
[0007] Compared with the prior art, the high-voltage switch cabinet with grounding protection has the following advantages: the setting of the high-voltage switch cabinet is optimized, the setting of the grounding structure of the switch cabinet is improved, the structure capable of monitoring the on-off state of the grounding wire is arranged, the function of fault positioning is increased, the maintenance of the staff is facilitated, the safety is improved, and the high-voltage switch cabinet with grounding protection is suitable for popularization and use. BRIEF DESCRIPTION OF DRAWINGS
[0008] Figure 1 It is a general appearance state diagram of the utility model.
[0009] Figure 2 It is a cabinet door opening schematic view of the utility model.
[0010] Figure 3 It is a switch cabinet inner bottom side partial detail schematic view of the utility model.
[0011] Figure 4 It is a grounding control monitoring structure connection schematic view of the utility model.
[0012] In the drawing: switch cabinet body 1, switch cabinet cabinet door 2, grounding control panel 3, grounding electrode plate 4, hidden cabinet door 5, structure fixing plate 6, grounding control monitoring structure 7, lifting handle 8, grounding wire perforation 9, grounding wire 10, protection switch 11, wire monitoring electrical assembly 12. DETAILED DESCRIPTION
[0013] The utility model will be further described in detail in combination with the drawings and specific implementation.
[0014] A kind of high-voltage switch cabinet with grounding protection, including switch cabinet body 1, switch cabinet cabinet door 2, grounding control panel 3, grounding electrode plate 4, the switch cabinet cabinet door 2 is hinged in the front side of switch cabinet body 1, the grounding control panel 3 is fixed on switch cabinet cabinet door 2, the grounding electrode plate 4 is provided with multiple groups, multiple groups of grounding electrode plate 4 are arranged in the bottom side of switch cabinet body 1, the inner bottom side of switch cabinet body 1 is provided with hidden cabinet door 5, the hidden cabinet door 5 bottom side is provided with structure fixing plate 6, the structure fixing plate 6 is fixed with grounding control monitoring structure 7.
[0015] The hidden cabinet door 5 rear side is hinged in the rear side wall of switch cabinet body 1, the hidden cabinet door 5 is provided with lifting handle 8, and hidden cabinet door 5 is provided with grounding wire perforation 9, the structure fixing plate 6 is transversely fixed on the two side walls of switch cabinet body 1, one side of the grounding control monitoring structure 7 passes through grounding wire perforation 9, and the other side of the grounding control monitoring structure 7 is connected to the grounding electrode plate 4.
[0016] The ground control monitoring structure 7 is composed of a ground wire 10, a protection switch 11 and a wire monitoring electrical component 12, the ground wire 10 is connected to the two sides of the protection switch 11, the wire monitoring electrical component 12 is arranged outside the ground wire 10 on the two sides of the protection switch 11, and the wire monitoring electrical component 12 is electrically connected to the ground control panel 3 on the switch cabinet door 2, the protection switch 11 is fixed on the structure fixing plate 6, one end of the ground wire 10 passes through the ground wire hole 9, and the other end of the ground wire 10 is connected to the ground electrode plate 4.
[0017] The utility model discloses working principle: this structure adopts the characteristics of fault positioning, enhancing ground performance.
[0018] The protection switch 11 arranged in the ground system can realize quick on-off ability of the staff in the working process, improve the safety ability of the staff, in addition, the wire monitoring electrical component 12 and the ground control panel 3 can monitor the ground current, voltage and resistance value in real time, discover the ground fault hidden danger in time and send early warning signals, so that the operating personnel can take measures in advance, prevent the occurrence of accidents, reduce equipment damage and power-off time.
[0019] The multiple ground electrode plates 4 can increase the ground performance, the multi-point grounding mode and the optimized ground line design effectively reduce the ground resistance, ensure that the fault current can be rapidly discharged when the ground fault occurs, the protection switch cabinet internal electrical element is protected from the damage of excessively high voltage, and the safety and reliability of the equipment are improved.
[0020] The above is the preferred embodiment of the utility model, and for ordinary skilled personnel in the art, according to the teaching of the utility model, the change, modification, replacement and modification of the embodiment without departing from the principle and spirit of the utility model still fall within the protection scope of the utility model.
Claims
1. A high-voltage switchgear with grounding protection, characterized in that, The switch cabinet includes a switch cabinet body (1), a switch cabinet door (2), a grounding control panel (3), and a grounding electrode plate (4). The switch cabinet door (2) is hinged to the front side of the switch cabinet body (1). The grounding control panel (3) is fixed on the switch cabinet door (2). Multiple sets of grounding electrodes plate (4) are arranged on the bottom side of the switch cabinet body (1). A hidden cabinet door (5) is provided on the inner bottom side of the switch cabinet body (1). A structural fixing plate (6) is provided on the bottom side of the hidden cabinet door (5). A grounding control and monitoring structure (7) is fixed on the structural fixing plate (6).
2. A high-voltage switchgear with grounding protection according to claim 1, characterized in that, The rear hinge of the hidden cabinet door (5) is connected to the rear side wall of the switch cabinet body (1). The hidden cabinet door (5) is provided with a lifting handle (8) and a grounding wire through hole (9) is opened on the hidden cabinet door (5). The structural fixing plate (6) is horizontally fixed on both sides of the switch cabinet body (1). One side of the grounding control monitoring structure (7) passes through the grounding wire through hole (9), and the other side of the grounding control monitoring structure (7) is connected to the grounding electrode plate (4).
3. A high-voltage switchgear with grounding protection according to claim 2, characterized in that, The grounding control and monitoring structure (7) consists of a grounding wire (10), a protective switch (11), and a wire monitoring electrical component (12). The grounding wire (10) is connected to both sides of the protective switch (11). The wire monitoring electrical component (12) is located on the outside of the grounding wire (10) on both sides of the protective switch (11). The wire monitoring electrical component (12) is electrically connected to the grounding control panel (3) on the switch cabinet door (2). The protective switch (11) is fixed on the structural fixing plate (6). One end of the grounding wire (10) passes through the grounding wire through hole (9), and the other end of the grounding wire (10) is connected to the grounding electrode plate (4).