GIS double-grounding isolation knife switch

Abstract

The utility model provides a GIS double grounding isolation knife switch, including base, mounting post, support device, support insulator, conductive system, grounding system, transmission system and operating mechanism, the base is equipped with the mounting post, the mounting post is equipped with the support device, the support device includes the support table and support rib plate, the support rib plate is equipped with the support insulator, the conductive system, the grounding system, the transmission system and the operating mechanism. The supporting rib plate is installed at the bottom of the supporting table, the supporting insulators are arranged on the two sides of the supporting table, the conductive system is located on the tops of the supporting insulators, and the conductive system is connected with the transmission system; the grounding system is mounted on the mounting column and is connected with the transmission system; the transmission system is located on the right side of the base, and the transmission system is connected with the operating mechanism; the operating mechanism comprises a hydraulic device and a control cabinet, the hydraulic device is arranged on the side face of the base, and the control cabinet is arranged in front of the base.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage electrical equipment technology, and in particular to a GIS double-grounding isolating switch. Background Technology

[0002] Disconnectors are indispensable and crucial equipment in power systems. They are primarily used to isolate equipment from the power supply during maintenance or repair, ensuring the safety of operators. With the continuous development and improvement of power systems, the design of disconnectors has undergone numerous improvements and innovations. Traditional disconnectors can no longer meet today's needs, and they suffer from the following drawbacks:

[0003] 1. Traditional isolating switches typically open vertically, which can generate significant electric arcs and sparks during the opening process. This can not only damage equipment and personnel but also pose safety hazards such as fires.

[0004] 2. Traditional isolating switches typically have only one grounding path, which may not provide sufficient grounding protection when equipment malfunctions. Summary of the Invention

[0005] The purpose of this utility model is to solve the above-mentioned problems by proposing a GIS double-grounding isolation switch.

[0006] To achieve the above objectives, the following technical solution was adopted:

[0007] A GIS double-grounding isolating switch includes a base, a mounting column, a support device, a support insulator, a conductive system, a grounding system, a transmission system, and an operating mechanism. The mounting column is mounted on the base, and the support device is mounted on the mounting column. The support device includes a support platform and support ribs. The support insulator is located on both sides of the support platform. The conductive system is located on top of the support insulator and is connected to the transmission system. The grounding system is mounted on the mounting column and connected to the transmission system. The transmission system is located on the right side of the base and is connected to the operating mechanism. The operating mechanism includes a hydraulic device and a control cabinet. The hydraulic device is located on the side of the base, and the control cabinet is located in front of the base.

[0008] Preferably, the right end of the support platform is provided with a first groove, and the bottom of the support platform is provided with a plurality of support ribs. The support ribs are connected to the support platform and the mounting column respectively by bolts. The first groove matches the first transmission rod, and a buffer layer is provided in the first groove to reduce the impact of the first transmission rod on the support platform and to fix the first transmission rod to prevent shaking.

[0009] Preferably, the conductive system includes a stationary contact, a moving contact, and a conductive knife switch. The stationary contact is provided with a second groove, and a contact piece is provided inside the second groove to ensure the conductive effect when the conductive knife switch and the stationary contact are in contact.

[0010] Preferably, the moving contact is provided with a guide groove that passes through the moving contact, and a guide rod is provided on the moving contact. The guide groove matches the conductive knife switch. Through the guide groove, the guide switch can be inserted into the stationary contact more accurately, thereby improving the accuracy of the closing operation.

[0011] Preferably, the conductive knife switch is provided with a sliding groove that matches the guide rod. The sliding groove and the guide rod restrict the conductive knife switch and prevent it from damaging the stationary contact. In addition, the sliding groove is provided with a conductive layer to ensure the conductivity between the guide rod and the conductive knife switch.

[0012] Preferably, the grounding system is divided into a first grounding, a second grounding, and a transmission component. The first grounding corresponds to the stationary contact, and the second grounding corresponds to the moving contact. Both the first grounding and the second grounding are composed of a first grounding contact, a second grounding contact, a grounding switch, and a grounding rod.

[0013] Preferably, the first grounding contact is installed on the side of the stationary contact and the moving contact respectively, the second grounding contact is installed on the grounding rod, and both the first grounding contact and the second grounding contact are provided with a third groove. The grounding switch is installed on the transmission assembly, and the third groove matches the grounding switch. The grounding rod is connected to the base and the mounting column respectively, and one end of the grounding rod is connected to the ground. The two independent grounding paths connected to the moving and stationary contacts respectively provide more reliable protection.

[0014] Preferably, the transmission assembly includes a bearing, a gear, a rack, and a support plate. The bearing and the gear are installed inside the support plate. The rack and the gear can mesh with each other. A slider is provided below the rack. The support plate is installed on the mounting column. A plurality of support ribs are installed at the bottom of the support plate. A slide rail is provided on the support plate, and the slide rail matches the slider.

[0015] Preferably, the transmission system includes a first transmission rod, a second transmission rod, and a fixed rod. One end of the first transmission rod is connected to the conductive knife switch, and the other end is connected to the hydraulic device. The fixed rod connects several first transmission rods together, and the second transmission rods are respectively connected to the fixed rod and the rack.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: The isolating switch adopts a parallel insertion type of opening and closing. Through the cooperation of hydraulic device and transmission system, the conductive switch is driven to move. After passing through the moving contact, the conductive switch is inserted into the stationary contact. This opening and closing method effectively reduces the generation of electric arc and spark, and improves the safety of the equipment. The isolating switch adopts a double grounding structure design. Through two independent grounding paths, it provides more reliable grounding protection capability and ensures that there is still a reliable grounding connection when the equipment is disconnected. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a GIS double-grounding isolating switch according to Embodiment 1 of this utility model;

[0018] Figure 2 This is a schematic diagram of the grounding system of a GIS double-grounding isolating switch according to Embodiment 1 of this utility model;

[0019] Figure 3 This is a schematic diagram of the transmission assembly of a GIS double-grounding isolating switch according to Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram of the transmission system of a GIS double-grounding isolating switch according to Embodiment 1 of this utility model;

[0021] Figure 5 This is a schematic diagram of the closing of a GIS double-grounding isolating switch according to Embodiment 1 of this utility model;

[0022] Figure 6 This is a schematic diagram of the opening of a GIS double-grounding isolating switch according to Embodiment 1 of this utility model;

[0023] 1. Base; 2. Mounting column; 3. Support device; 4. Support insulator; 5. Conductive system; 6. Grounding system; 7. Transmission system; 8. Operating mechanism; 31. Support platform; 32. Support rib; 33. First groove; 51. Stationary contact; 52. Moving contact; 53. Conductive switch; 54. Second groove; 531. Slide groove; 61. First grounding; 62. Second grounding; 63. Transmission assembly; 64. First grounding contact; 65. Second grounding contact; 66. Grounding switch; 67. Grounding rod; 631. Bearing; 632. Gear; 633. Rack; 634. Support plate; 635. Slide rail; 636. First transmission rod; 71. Second transmission rod; 72. Fixed rod; 81. Hydraulic device; 82. Control cabinet. Detailed Implementation

[0024] The following describes a GIS double-grounding isolating switch in detail with reference to the accompanying drawings.

[0025] like Figure 1As shown, a GIS double-grounding isolating switch includes a base 1, a mounting column 2, a support device 3, a support insulator 4, a conductive system 5, a grounding system 6, a transmission system 7, and an operating mechanism 8. The base 1 is provided with the mounting column 2, and the mounting column 2 is equipped with the support device 3. The support device 3 includes a support platform 31 and a support rib 32. The support platform 31 is installed on the upper end of the mounting column 2, and the support rib 32 is located at the bottom of the support platform 31. The support insulator 4 is located on both sides of the support platform 31. The conductive system 5 includes a stationary contact 51, a moving contact 52, and a conductive switch 53. The stationary contact 51 and the moving contact 52 are located on the top of the support insulator 4. The conductive switch 53 is provided with a sliding groove 531, and the conductive system 5 is connected to the transmission system 7.

[0026] like Figure 2 and Figure 3 As shown, the grounding system 6 is mounted on the mounting post 2 and connected to the transmission system 7. The grounding system 6 is divided into a first grounding 61, a second grounding 62, and a transmission assembly 63. The first grounding 61 and the second grounding 62 are each composed of a first grounding contact 64, a second grounding contact 65, a grounding switch 66, and a grounding rod 67. The first grounding contact 64 is installed on the side of the stationary contact 51 and the moving contact 52, respectively. The second grounding contact 65 is installed on the grounding rod 67. The grounding switch 66 is installed on the transmission assembly 63. The grounding rod 67 is connected to the base 1 and the mounting post 2, respectively. One end of the grounding rod 67 is connected to the ground. The transmission assembly 63 includes a bearing 631, a gear 632, a rack 633, and a support plate 634. A slider 635 is provided below the rack 633. The support plate 634 is mounted on the mounting post 2. Several support ribs 32 are installed at the bottom of the support plate 634. A slide rail 636 is provided on the support plate 634.

[0027] like Figure 4 As shown, the transmission system 7 is located on the right side of the base 1 and is connected to the operating mechanism 8. The transmission system 7 includes a first transmission rod 71, a second transmission rod 72 and a fixed rod 73. The operating mechanism 8 includes a hydraulic device 81 and a control cabinet 82. The hydraulic device 81 is located on the side of the base 1 and the control cabinet 82 is located in front of the base 1.

[0028] In this embodiment, as Figure 5As shown, closing the circuit breaker: The operator controls the hydraulic device 81 to pull inward via the control cabinet 82. The hydraulic device 81 drives the first transmission rod 71 to move, thereby driving the second transmission rod 72 and the conductive knife switch 53 to move towards the stationary contact 51. At the same time, the second transmission rod 72 is connected to one end of the rack 633, thereby driving the rack 633 to move. In the transmission assembly 63, the rack 633 and the gear 632 mesh with each other. The movement of the rack 633 drives the gear 632 to rotate, causing the other side of the rack 633 to move in the opposite direction. The rack 633 is equipped with a grounding switch 66, which moves with the rack 633. When the front end of the conductive switch 53 is inserted into the stationary contact 51, the first transmission rod 71 moves to the first groove 33 on the side of the support platform 31. The grounding switch 66 leaves the first grounding contact 64 and the second grounding contact 65, and moves with the rack 633 to the end of the slide rail 636. The conductive switch 53 contacts the stationary contact 51, and the grounding switches 66 on both sides are disconnected from the contacts. At this time, the moving and stationary contacts are conductive.

[0029] like Figure 6 As shown, the circuit breaker trips: The operator controls the hydraulic device 81 to push outward through the control cabinet 82. The hydraulic device 81 drives the first transmission rod 71 to move, thereby driving the second transmission rod 72 and the conductive knife switch 53 to move towards the moving contact 52. The first transmission rod 71 moves away from the first groove 33. At the same time, the second transmission rod 71 drives the rack 633 to move outward. In the transmission assembly 63, the movement of the rack 633 drives the gear 632 to rotate. The rack 633 on the other side moves in the opposite direction. The rack 633 drives the grounding knife switch 66 to move towards the first grounding contact 64 and the second grounding contact 65. When the top of the conductive knife switch 53 moves to the moving contact 52, the grounding knife switch 66 contacts the first grounding contact 64 and the second grounding contact 65. At this time, the conductive knife switch 53 is completely separated from the stationary contact 51, and both the moving and stationary contacts are connected to the ground.

[0030] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of this application. Those skilled in the art may find other optimizations and additional functions in this application. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A GIS double-grounding isolating switch, characterized in that: The system includes a base (1), mounting posts (2), a support device (3), a support insulator (4), a conductive system (5), a grounding system (6), a transmission system (7), and an operating mechanism (8). The mounting posts (2) are mounted on the base (1), and the support device (3) is mounted on the mounting posts (2). The support device (3) includes a support platform (31) and a support rib (32). The support insulator (4) is located on both sides of the support platform (31), and the conductive system (5) is located on top of the support insulator (4). The conductive system (5) is connected to the transmission system (7); the grounding system (6) is mounted on the mounting post (2) and connected to the transmission system (7); the transmission system (7) is located on the right side of the base (1) and connected to the operating mechanism (8); the operating mechanism (8) includes a hydraulic device (81) and a control cabinet (82), the hydraulic device (81) is located on the side of the base (1) and the control cabinet (82) is located in front of the base (1).

2. The GIS double-grounding isolating switch as described in claim 1, characterized in that: The right end of the support platform (31) is provided with a first groove (33), and the bottom of the support platform (31) is provided with a plurality of support ribs (32). The support ribs (32) are connected to the support platform (31) and the mounting column (2) respectively by bolts.

3. The GIS double-grounding isolating switch as described in claim 1, characterized in that: The conductive system (5) includes a stationary contact (51), a moving contact (52), and a conductive knife switch (53), wherein the stationary contact (51) is provided with a second groove (54).

4. The GIS double-grounding isolating switch as described in claim 3, characterized in that: The moving contact (52) is provided with a guide groove (55) that passes through the moving contact (52). The moving contact (52) is provided with a guide rod (56) and the guide groove (55) matches the conductive knife switch (53).

5. The GIS double-grounding isolating switch as described in claim 4, characterized in that: The conductive knife switch (53) is provided with a sliding groove (57), which matches the guide rod (56).

6. The GIS double-grounding isolating switch as described in claim 4, characterized in that: The grounding system (6) is divided into a first grounding (61), a second grounding (62) and a transmission component (63). The first grounding (61) corresponds to the stationary contact (51), and the second grounding (62) corresponds to the moving contact (52). Both the first grounding (61) and the second grounding (62) are composed of a first grounding contact (64), a second grounding contact (65), a grounding switch (66), and a grounding rod (67).

7. The GIS double-grounding isolating switch as described in claim 6, characterized in that: The first grounding contact (64) is installed on the side of the stationary contact (51) and the moving contact (52) respectively. The second grounding contact (65) is installed on the grounding rod (67). The first grounding contact (64) and the second grounding contact (65) are each provided with a third groove (68). The grounding switch (66) is installed on the transmission assembly (63). The third groove (68) matches the grounding switch (66). The grounding rod (67) is connected to the base (1) and the mounting column (2) respectively. One end of the grounding rod (67) is connected to the ground.

8. The GIS double-grounding isolating switch as described in claim 6, characterized in that: The transmission assembly (63) includes a bearing (631), a gear (632), a rack (633), and a support plate (634). The bearing (631) and the gear (632) are installed in the support plate (634). The rack (633) and the gear (632) can mesh with each other. A slider (635) is provided below the rack (633). The support plate (634) is installed on the mounting column (2). A plurality of support ribs (32) are installed at the bottom of the support plate (634). A slide rail (636) is provided on the support plate (634). The slide rail (636) matches the slider (635).

9. The GIS double-grounding isolating switch as described in claim 8, characterized in that: The transmission system (7) includes a first transmission rod (71), a second transmission rod (72), and a fixed rod (73). One end of the first transmission rod (71) is connected to the conductive knife switch (53), and the other end is connected to the hydraulic device (81). The fixed rod (73) connects several first transmission rods (71) together. The second transmission rod (72) is connected to the fixed rod (73) and the rack (633) respectively.

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