Shielding Structure of Pole Moving Terminal of Solid Insulation Switch
A solid insulated switch and shielding structure technology, which is applied to the setting of switchgear, switchgear, electrical components, etc., can solve the problems of excessive electric field value at the junction of three media and the edge of conductor, uneven distribution of electric field at the moving end of shielding pole, etc. , to achieve the effect of solving the problem of insulation weak links, optimizing the electric field distribution, and simple insulation structure
Active Publication Date: 2016-06-08
麦克奥迪(厦门)智能电气有限公司
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[0007] The invention provides a pole moving end shielding structure of a solid insulated switch, through which the shielding shell arranged at the pole moving end of the vacuum interrupter surrounds the three-medium junction, the soft connection and the lower outlet terminal, and transfers the high electric field to the insulation In this way, the problem of uneven distribution of the electric field on the moving end side of the shielding pole is solved, mainly because the electric field value at the junction of the three media and the edge of the conductor exceeds the standard.
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[0021] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0022] Such as Figure 1-3 As shown in the figure, a pole moving end shielding structure of a solid insulated switch includes a grounding layer 1, a cured and formed insulating layer 2, a vacuum interrupter 5, a ceramic shell, a metal cover and epoxy resin in the vacuum interrupter. The three-medium junction 4, the lower outlet terminal 6, the soft connection 7, the insulating pull rod 8 and the shielding shell 3, and the lower end of the vacuum interrupter 5 are respectively connected with the soft connection 7 and the insulating pull rod 8. Due to the setting of the ground layer 1 sprayed with conductor or semiconductor material, a strong electric field region is formed between the entire conductive loop and the ground layer 1 . Especially in the vacuum interrupter 5, the electric field at the three-dielectric junctio...
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The invention discloses a pole moving end shielding structure of a solid insulated switch, which comprises a grounding layer, a cured and molded insulating layer, a vacuum interrupter, a three-dimensional structure composed of a porcelain shell and a metal cover in the vacuum interrupter, and epoxy resin. The medium junction, the lower outgoing terminal, the soft connection, the insulating pull rod and the shielding shell, the lower end of the vacuum interrupter is respectively connected with the soft connection and the insulating pull rod, and the shielding shell is set at the moving end of the pole of the vacuum interrupter The part outside the moving end of the column surrounds the junction of the three media, the lower outlet terminal and the outside of the soft connection, and the soft connection and the lower outlet terminal are fixedly connected to the shielding case. The high electric field can be transferred to the inside of the insulating layer, thereby solving the problem of uneven distribution of the electric field on the moving end side of the shielding pole, mainly the problem that the electric field value exceeds the standard at the junction of the three media and the edge of the conductor; the entire moving pole is optimized The distribution of the electric field at the end makes the structure simpler, the production cost is lower, and the reliability is higher, thus giving full play to the advantages of solid insulation technology.
Description
[0001] Shielding Structure of Pole Moving Terminal of Solid Insulation Switch technical field [0002] The invention relates to the manufacturing field of power transmission and distribution switchgear, in particular to a pole moving end shielding structure of a solid insulated switch. Background technique [0003] Solid insulated switches are environmentally friendly due to their absence of SF6 gas. Its outer surface has a grounded metal or semiconductor coating, which can be touched by the human body during operation; by utilizing the high withstand field strength and relatively good heat dissipation of solid insulating materials, the structure of solid insulated switchgear is more compact. [0004] At present, the solid-sealed pole is mainly composed of insulating pull rods, flexible connections, lower outlet terminals, arc extinguishing chamber components, epoxy resin shells and upper outlet terminals. Since the epoxy shell is grounded, the side of the moving end of the...
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IPC IPC(8): H02B13/00
Inventor 王振良张建宏汤伟
Owner 麦克奥迪(厦门)智能电气有限公司