High-voltage cable remote transmission circuit breaker
By using a moving conductive tube and a stationary conductive rod made of ceramic material, and taking advantage of their high temperature resistance and insulation properties, the arc is cut off, which solves the problems of complex structure and high failure rate of existing high voltage circuit breakers, and realizes a circuit breaker design with low failure rate and low cost.
Patent Information
- Application Number
- CN202422853800.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing high-voltage circuit breakers have complex structures, high failure rates, and require the filling and storage of sulfur hexafluoride gas, which is costly. Furthermore, sulfur hexafluoride gas is prone to liquefying at high temperatures, posing a safety hazard.
The system uses a moving conductive tube and a stationary conductive rod made of ceramic material. The vertical movement of the moving conductive tube and the moving insulating ceramic tube cuts off the electric arc. By utilizing the high temperature resistance, chemical corrosion resistance and insulation properties of ceramics, the generation of electric arcs is reduced, and the failure rate and maintenance costs are lowered.
It achieves effective arc interruption, reduces failure rate and maintenance costs, and the use of ceramic materials improves the durability of the equipment.
Smart Images
Figure CN223582881U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of high-voltage cable remote transmission circuit breaker in the electric power transmission technical field. BACKGROUND
[0002] Electric energy transmission refers to a mode of transmission from power plant or power source from somewhere to another, due to early technology immaturity, electric energy transmission is mostly direct current transmission, and gradually evolves into alternating current transmission in later period, alternating current transmission has many advantages, reduces the loss in electric power transmission, improves speed and transmission length, but still has certain loss, it is believed that after technology matures, more suitable electric energy transmission mode will appear.
[0003] High-voltage electric circuit breaker controls the contact of two copper material contacts inside the circuit breaker by controller, and removes arc by using sulfur hexafluoride gas, to avoid sulfur hexafluoride gas being converted into liquid under certain pressure due to temperature reduction, therefore, heater is additionally installed inside, which has complex structure and high failure rate, and sulfur hexafluoride gas needs to be filled, stored and consumed, therefore, the above defects are solved by improving existing technology. SUMMARY
[0004] The utility model aims at providing a kind of high-voltage cable remote transmission circuit breaker to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] A kind of high-voltage cable remote transmission circuit breaker, including two segments of ceramic shell, two segments of ceramic shell are connected by flange, the top of ceramic shell is provided with upper conductive part, upper conductive part is equipped with static conductive rod, the inside of ceramic shell is provided with vertically slidable dynamic conductive tube, the top of dynamic conductive tube is equipped with dynamic insulating ceramic tube, the bottom end of static conductive rod is equipped with static insulating ceramic rod.
[0007] As a further scheme of the utility model: after dynamic insulating ceramic tube and dynamic conductive tube move upwards to top, dynamic conductive tube and static conductive rod contact to form electrical connection, after dynamic insulating ceramic tube and dynamic conductive tube move downwards to bottom, static insulating ceramic rod and dynamic insulating ceramic tube contact, dynamic conductive tube and static conductive rod are disconnected.
[0008] As a further scheme of the utility model: the inside of ceramic shell is provided with outer conductor and outer insulating ceramic body, after dynamic insulating ceramic tube and dynamic conductive tube move downwards to bottom, the outside of dynamic insulating ceramic tube and outer insulating ceramic body contact.
[0009] As a further scheme of the utility model: the inside of the ceramic shell is provided with a conductive support, the movable conductive pipe is located inside the conductive support and can vertically slide inside the conductive support, the conductive support is a conductor, and the conductive support is connected with the conductive end and outputs current through the conductive end.
[0010] As a further scheme of the utility model: the bottom end of the movable conductive pipe is provided with an insulation section, and the insulation section is connected with the driving shaft.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] The high-voltage cable remote transmission circuit breaker cuts off the electric arc by the vertical movement of the movable conductive pipe and the movable insulation ceramic pipe, utilizes the characteristics of ceramic, reduces the generation of electric arc, and replaces and maintains the ceramic accessories through the circuit breaking times, so that compared with the sulfur hexafluoride gas circuit breaker, the maintenance and replacement cost is low, the failure rate is low, and the circuit breaker is more durable. BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 It is a structural schematic view of a high-voltage cable remote transmission circuit breaker;
[0014] Fig. 2 It is an exploded view of a high-voltage cable remote transmission circuit breaker;
[0015] Fig. 3 It is a structural electrical connection schematic view of an outer conductor of a high-voltage cable remote transmission circuit breaker;
[0016] Fig. 4 It is a structural electrical disconnection schematic view of an outer conductor of a high-voltage cable remote transmission circuit breaker.
[0017] In the drawing: 1, ceramic shell; 2, flange; 3, conductive end; 4, upper conductive part; 5, driving shaft; 6, static conductive rod; 7, static insulation ceramic rod; 8, outer conductor; 9, outer insulation ceramic body; 10, movable insulation ceramic pipe; 11, movable conductive pipe; 12, insulation section; 13, conductive support. DETAILED DESCRIPTION
[0018] Please refer to Figs. 1-4The utility model discloses an embodiment of a kind of high-voltage cable remote transmission circuit breaker, including two section ceramic shell 1, two section ceramic shell 1 is connected through flange 2, the top of ceramic shell 1 is provided with upper conductive part 4, upper conductive part 4 is equipped with static conductive rod 6, ceramic shell 1 is provided with movable conducting tube 11 that can vertically slide, the top of movable conducting tube 11 is equipped with movable insulating ceramic tube 10, the bottom of static conductive rod 6 is equipped with static insulating ceramic rod 7, arc is a kind of material surface ablation phenomenon caused by arc discharge, its high temperature and high pressure can cause nearby material to volatilize or melt, form ablation pit, ceramic material has the characteristics of high temperature resistance, chemical corrosion resistance, good insulation, high hardness, under arc discharge environment, due to its hardness and chemical corrosion resistance, can resist ablation of arc to some extent.
[0019] In a preferred embodiment, after moving upward to the top, the movable conducting tube 11 contacts the static conductive rod 6 to form an electrical connection, and the circuit is connected. After moving downward to the bottom, the static insulating ceramic rod 7 contacts the movable insulating ceramic tube 10, and the movable conducting tube 11 is disconnected from the static conductive rod 6. At the moment of disconnection, the static insulating ceramic rod 7 contacts the movable insulating ceramic tube 10 at the moment, and the movable conducting tube 11 is disconnected from the static conductive rod 6. The static insulating ceramic rod 7 and the movable insulating ceramic tube 10 block the arc and inhibit the generation of the arc, which can effectively avoid the generation of the arc.
[0020] In a preferred embodiment, the inside of the ceramic shell 1 is provided with an outer conductor 8 and an outer insulating ceramic body 9. After moving downward to the bottom, the outside of the movable insulating ceramic tube 10 contacts the outer insulating ceramic body 9, and the outer conductor 8 simultaneously contacts or disconnects from the movable conducting tube 11 and the static conductive rod 6. At the moment of disconnection, the outer insulating ceramic body 9, the movable insulating ceramic tube 10, and the static insulating ceramic rod 7 form contact and cut off the arc.
[0021] In a preferred embodiment, the inside of the ceramic shell 1 is provided with a conductive support 13. The movable conducting tube 11 is located inside the conductive support 13 and can vertically slide inside the conductive support 13. The conductive support 13 is a conductor, and the conductive support 13 is connected to the conductive end 3 and outputs current through the conductive end 3. In combination with the structure of the sulfur hexafluoride gas circuit breaker, technical transformation is carried out.
[0022] In a preferred embodiment, the bottom end of the movable conducting tube 11 is provided with an insulating section 12, and the insulating section 12 is connected to the drive shaft 5 to improve the insulation performance of the equipment. The drive shaft 5 controls the vertical movement in combination with the controller of the sulfur hexafluoride gas circuit breaker.
[0023] It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has different emphases. If the description in an individual embodiment is not exhaustive, the description in other embodiments can be referred to.
[0024] The above-described embodiments only express the implementation of the utility model, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which are all within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A high-voltage cable remote transmission circuit breaker, comprising two ceramic housings (1) connected by a flange (2), wherein an upper conductive part (4) is provided on the top of the ceramic housing (1), and a stationary conductive rod (6) is installed on the upper conductive part (4), characterized in that, The ceramic shell (1) is provided with a vertically sliding movable conductive tube (11), the top of the movable conductive tube (11) is equipped with a movable insulating ceramic tube (10), and the bottom of the static conductive rod (6) is equipped with a static insulating ceramic rod (7).
2. The high-voltage cable remote transmission circuit breaker according to claim 1, characterized in that, After the moving insulating ceramic tube (10) and the moving conductive tube (11) move upward to the top, the moving conductive tube (11) contacts the stationary conductive rod (6) to form an electrical connection. After the moving insulating ceramic tube (10) and the moving conductive tube (11) move downward to the bottom, the stationary insulating ceramic rod (7) contacts the moving insulating ceramic tube (10), and the moving conductive tube (11) disconnects from the stationary conductive rod (6).
3. A high-voltage cable remote transmission circuit breaker according to claim 1 or 2, characterized in that, The ceramic shell (1) is provided with an external conductor (8) and an external insulating ceramic body (9). After the moving insulating ceramic tube (10) and the moving conductor (11) move downward to the bottom, the outer side of the moving insulating ceramic tube (10) contacts the external insulating ceramic body (9).
4. A high-voltage cable remote transmission circuit breaker according to claim 1, characterized in that, The ceramic shell (1) is equipped with a conductive support (13). The movable conductive tube (11) is located inside the conductive support (13) and can slide vertically inside the conductive support (13). The conductive support (13) is a conductor. The conductive support (13) is connected to the conductive end (3) and outputs current through the conductive end (3).
5. A high-voltage cable remote transmission circuit breaker according to claim 1, characterized in that, An insulating section (12) is provided at the bottom end of the moving conductive tube (11), and the insulating section (12) is connected to the drive shaft (5).