Medium voltage switch insulation support framework

A technology of supporting frame and insulating support, applied in switchgear, switchgear setting, electrical components and other directions, can solve problems such as harm caused by users, and achieve the effect of compact structure, meeting reliability requirements and high safety

Active Publication Date: 2014-04-23
HM POWER (GUANGDONG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the structure is not made of all plastic or all insulating materials, once the injection molding or compression molding insulating materials on the surface of the metal plate are worn, it is easy to bring harm to the user

Method used

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  • Medium voltage switch insulation support framework
  • Medium voltage switch insulation support framework
  • Medium voltage switch insulation support framework

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Embodiment Construction

[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] See Figure 1-Figure 5 , The insulating support frame of the medium voltage switch includes a support frame that bears the mechanical support strength and the separation and insulation function under the working condition of the electrical switch. Shield the charged body of the electrical switch between the insulating support frame, so that the electric field between the phase and the phase and the phase and the ground becomes a uniform electric field, reducing the space occupied, thereby achieving a compact structure; the supporting frame includes the left / right side plate 2 and The upper support beam 1, the horizontal support plate 3 and the bottom support block 4 distributed from top to bottom and connected between the left / right side plates; the left / right side plates and the horizontal support plates are all reinforced by SMC unsaturated polyester glass fiber...

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Abstract

A medium voltage switch insulation support framework comprises support frameworks which can undertake mechanical strength under the conditions of opening and closing an electrical switch and possess a separation insulation effect. An electrified body of the electrical switch is shielded between the insulation support frameworks so that electric fields between phase and phase, phase and ground can be turned into the uniform electric fields. The support framework comprises left / right side plates, an upper support beam, a horizontal support plate and a bottom support block, wherein the upper support beam, the horizontal support plate and the bottom support block are distributed from top to bottom and are connected between left and right side plates. The left / right side plates and the horizontal support plate are formed by compacting SMC unsaturated polyester glass fiber reinforcement molding compound. The upper support beam and the insulation support framework formed by a glass fiber reinforcement engineering plastics bottom support block are performed as support structures and isolated insulation of opening and closing functions of the electrical switch. Space insulation distances are shortened by establishing barriers from three directions of a left side, a right side and a bottom side. Combination between structure strength components and insulating materials can be realized.

Description

Technical field [0001] The invention relates to an insulating support frame for a switch, in particular to an insulating support frame for a medium voltage switch. Background technique [0002] In order to meet the requirements of mechanical support strength and isolation insulation under the working conditions of the electrical switch, the existing medium voltage switch support frame is made of metal materials to achieve the purpose of supporting the mechanical strength; in addition, insulation is performed through an air gap. Due to the complexity of the charged body, the electric field is concentrated in some parts. In order to improve the insulation strength, the size of the support frame can only be increased to ensure the insulation distance. However, it is difficult to realize due to the structural limitation of the product, which will result in the low insulation strength safety factor of the existing medium voltage switch supporting frame, the gas insulation gap causes t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B13/035
Inventor 麦建国李家良涂景添
Owner HM POWER (GUANGDONG) CO LTD
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