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Insulator and transmission line

A technology of insulators and insulating surfaces, applied in the field of power transmission and transformation, can solve problems affecting the safe and stable operation of power systems, and achieve the effects of increasing temperature, accelerating thermal aging, and preventing ice formation

Active Publication Date: 2012-06-20
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no effective means to remove or prevent the icing of insulators, and insulator flashover accidents caused by icing occur from time to time, affecting the safe and stable operation of the power system

Method used

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  • Insulator and transmission line
  • Insulator and transmission line
  • Insulator and transmission line

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] In one embodiment, the insulator includes an insulating surface, a portion of which is coated with a conductive paint of a specific resistivity. see figure 1 , the insulator of one embodiment is divided by the center line, the left half a of the center line is the view of the outer surface of the insulator, the right half part b is the cross-sectional view of the insulator, and the specific resistivity conductive paint area on the insulating surface is figure 1 For surfaces between midpoint 2 and point 3, the specific resistivity conductive coating preferably has a volume resistivity of 10 5 Ohm centimeters, forming a low-temperature hydrophobic surface, the coating thickness is preferably 0.3mm-0.4mm. figure 1 The area between midpoint 1 and point 2 is not coated with conductive paint, which is a non-conductive paint area. Areas of...

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Abstract

The present invention discloses an insulator comprising an insulation surface, wherein one part of the insulation surface is coated with conductive coating having special resistivity,the conducting coating area of the special resistivity and the uncondutive coating area are arranged in a discontinuous conduting channel between an upper armour clamp and a lower armour clamp of the insulator under a dry environment,and the conductive coating area of the special resistivity makes the leakage current value caused on the insulation surface reach to the temperature for preventing ice coating under ice coating weather conditions. The utility model also discloses a transmission device using the insulator. under the ice coating weather conditions, the conductive coating can improve the leakage current value of the surface of the insulator so as to prevent ice coating.

Description

technical field [0001] The invention relates to the field of power transmission and transformation, in particular, the invention relates to an insulator and transmission line equipment with the insulator. Background technique [0002] For a large number of transmission lines passing through a wide area, under cold weather conditions, the surface of insulators and conductors often forms an ice layer, which can cause accidents such as line breakage, tower collapse, and flashover trips in severe cases. Traditional insulator surface materials such as RTV (room temperature vulcanized silicone rubber), PRTV (ultra long-term room temperature vulcanized silicone rubber), etc., have good hydrophobicity at room temperature, but due to the characteristics of the material itself, the hydrophobicity will decrease when the temperature is close to zero. Disappeared, no anti-icing performance. The anti-icing method that increases the surface temperature through energy consumption and heati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/54H01B17/50H01B17/02
CPCH01B17/50H01B17/02H01B17/54H01B3/28H01B7/28H01B9/008
Inventor 李岩贾志东赵宇明许志海黎小林关志成廖伟焱韦晓星覃煜邓禹苏华锋
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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