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composite insulator

A technology of composite insulators and sheds, used in insulators, electrical components, circuits, etc., can solve the problems of small field strength of insulators, and achieve the effects of improving water repellency, reducing the accumulation of stains, and increasing creepage distance.

Active Publication Date: 2020-12-08
STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a composite insulator to solve the problem in the prior art that there is a composite insulator with low field strength, long service life and good self-cleaning ability.

Method used

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Examples

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Embodiment 1

[0018] Embodiment 1. A composite insulator, comprising a high-voltage end 6, a ground electrode 11, a mandrel 10 and a shed, the high-voltage end 6 and the ground electrode 11 are respectively provided with locking pins 1, and the shed includes a shed I4, Shed Ⅱ5 and top shed 12, the radius of shed I4 is greater than the radius of shed II5, the radius of top shed 12 is equal to the radius of shed I4; The concave arc III8 of the shed is provided on the II5; the shed II5 and the shed I4 below the top shed 12 are alternately arranged.

Embodiment 2

[0019] Embodiment 2. A composite insulator, the top shed 12 is provided with a shed concave arc I2; the upper surface 3 of the shed I of the shed I4 is a fine zigzag plane with an included angle of 120° °; The upper surface 9 of the shed II of the shed II 5 is at an angle of 11° with the horizontal plane, and the others are the same as in Example 1.

[0020] The radius of the shed I4 is greater than that of the shed II5, and the shed I4 and the shed II5 are arranged alternately, which increases the creepage distance and ensures the self-cleaning of the shed II5. The upper surface 3 of the shed I is finely serrated Flat surface with an undulating angle of 120 improves the surface's hydrophobicity and reduces the accumulation of stains. The setting of shed concave arc I2, shed concave arc II7 and shed concave arc III8 reduces the root thickness of top shed 12, shed I4 and shed II5, and correspondingly reduces the magnitude of the field strength near the insulator, thereby The s...

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Abstract

The invention discloses a composite insulator, and belongs to the field of power equipment. The composite insulator solves the problem that a composite insulator which is low in field strength, long in service life and good in self-cleaning capacity is short in the prior art. The composite insulator mainly comprises a high-voltage end, a ground electrode, a core rod and an umbrella skirt, whereinhardware fittings are arranged in the high-voltage end and the ground electrode; locking pins are arranged on the hardware fittings; the umbrella skirt comprises umbrella skirts I, umbrella skirts IIand a top umbrella skirt; the radius of the umbrella skirts I is greater than that of the umbrella skirts II; the radius of the top umbrella skirt is equal to that of the umbrella skirts I; umbrella skirt concave arcs II are arranged on the umbrella skirts I; umbrella skirt concave arcs III are arranged on the umbrella skirts II; and the umbrella skirts II and the umbrella skirts I below the top umbrella skirt are alternately distributed. The composite insulator is mainly used for bearing voltage and mechanical stress on conductors mounted at different potentials or between the conductors andground members.

Description

technical field [0001] The present invention relates to a kind of electric equipment, in particular, relates to a kind of composite insulator. Background technique [0002] In the power system, generators, transformers, and insulators are the main equipment. Insulators are used in every link of power transmission and transformation. According to the material of the insulators, insulators can be divided into glass, ceramics and composite insulators. The insulators are connected to the fittings by filling, bolts and crimping connections. Insulators play the role of supporting wires and preventing current from returning to the ground in overhead transmission lines. Insulators should not be affected by environmental and electrical load conditions, otherwise it will damage the service life and operating life of the entire line. [0003] The service life and structural strength of the insulator are greatly affected by the field strength. The field strength near the insulator is p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/40H01B17/42H01B17/52
CPCH01B17/40H01B17/42H01B17/525
Inventor 王倩倩王萌萌代兵琪王俊鹏刘丽娜刘尚祥刘振博张学芹
Owner STATE GRID SHANDONG ELECTRIC POWER