Freezing rain preventing insulator

An insulator and freezing rain technology, applied in insulators, electrical components, circuits, etc., can solve problems such as loss, collapse of utility poles, etc., and achieve the effects of avoiding losses, low cost, and simple process
CN101488383AInactive Publication Date: 2009-07-22TONGJI UNIV
0 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
TONGJI UNIV
Publication Date
2009-07-22
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

Abstract

The invention discloses a freezing rain resistant insulator, which relates to a facility that is used for transmitting high-voltage electricity and can resist freezing rain. The insulator is characterized in that a positive temperature coefficient thermistor material with heat sensitive protecting temperature of 5 DEG C- 15 DEG C is chosen as a PTC coating (7) according to the surface heat situation of the PTC coating or the size of the leakage current of the insulator in freezing rain, the thermistor material is PTC ceramic material commercially available, the PTC coating (7) is covered on the upper and the lower surfaces of the insulating part (4) of the insulator, and the thickness of the PTC coating decrease gradually from the interior to the exterior along the radius of the insulating part (4) with a variation range of 0.25-0.05mm; an insulating ceramic coating (9) is covered outside the PTC coating (7) equally so as to control the surface heat or leakage current of the insulator in freezing rain and become the insulator that can resist freezing rain. The insulator has the advantages of simple process and low cost and no freezing happening on the surface of the insulator, thereby the loss of electric power system caused by freezing rain is prevented.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] An anti-freezing rain insulator relates to a facility capable of resisting freezing rain disasters for transmitting high-voltage electricity. technical background

[0002] Freezing rain is a weather phenomenon seen in early winter or late winter and early spring. When the ground temperature is close to or lower than zero, the raindrops formed by the warm and humid air flow in the air will freeze when they hit the objects on the ground. This is freezing rain. If this kind of freezing rain occurs on the insulators used for high-voltage power transmission, the frozen area will gradually accumulate over time. Taking suspension insulators as an example, when the icy area on each insulator accumulates to connect the insulators, the flashover discharge phenomenon on the surface of the insulators occurs immediately, that is, "ice flash". When the flashover discharge occurs, the automatic protection device of the power supply system will automatically cut off...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More