35kv Pin Type Porcelain Insulator for Transformer Substation(ANSI)
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35kv Pin Type Porcelain Insulator for Transformer Substation(ANSI)

Porcelain insulators,also named ceramic Insulators are made from clay, quartz or alumina and feldspar, and are covered with a smooth glaze to shed water. Insulators made from porcelain rich in alumina are used where high mechanical strength is a criterion. Porcelain has a dielectric strength of about 4–10 kV/mm.It also has perfect dielectric performance.Porcelain insulators are widely used in overhead transmission lines to provide mechanical support and electrical protection, as well as in distribution lines and substations. Depending on voltage considerations, different kinds of insulators are used in power systems,we have Pin insulator,strain insulator,suspension insulator.post insulator,long rod insulator,horizontal post insulator,Railway insulator,shackle insulator,stay insulator.
Availability:
  • 56-1

  • HAIVOL

Insulators are vital for maintaining safe and efficient overhead transmission lines. While originally intended for telegraph poles, today, disk-shaped insulators are commonly attached to high-voltage wire connection towers to increase the creepage distance. Typically made from glass or ceramics, these insulators must withstand various electromechanical stresses caused by environmental and electrical load changes. If they fail, the entire line could suffer damage and reduced operating life.


The main function of insulators is to achieve electrical insulation and mechanical fixation, for which various electrical and mechanical performance requirements are specified. If under the specified operating voltage, lightning overvoltage and internal overvoltage, no breakdown or flashover along the surface; under the specified long-term and short-term mechanical load, no damage and damage; under the specified machine , After long-term operation under electrical load and various environmental conditions, no obvious deterioration will occur; the fittings of insulators will not produce obvious corona discharge under the operating voltage, so as not to interfere with radio or television reception. Because insulators are widely used devices, their connection fittings are also required to be interchangeable. In addition, the technical standards of insulators also require various electrical, mechanical, physical, and environmental conditions to test the performance and quality of the insulators according to different types and conditions of use.


Summary

1) Material:porcelain

2) Class ANSI: 56-1 56-2 56-3 56-4 56-5

3)pin type insualators for high voltage

4)safe usage

5)various desigins available

6)fast shipping and great service

7)good quality and reasonable price

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Main dimensions and standard particulars
Fig 1 1 2 2
3
Class ANSI 56-1 56-2 56-3  56-4 56-5
Main Dimensions (mm) H 146 165 191 241 318
h 50.8 50.8 50.8 50.8 63.5
D 191 228 267 305 343
d 34.9 34.9 34.9 34.9 34.9
d1
19 19 19 19 19
R2 14 14 14 14 14
Nominal Voltage (kV) 23 23 35 46 69
Creepage Distance (mm) 330 430 533 685 865
Minimum Flashover Voltage Power-frequency Dry (kV) 95 110 125 140 175
Wet (kV) 60 70

80

95 125
50% Impulse

Positive(kv) 150 175 200 225 270
Negative(kv) 190 225 265 310 340
Radio Influence Voltage Data Test Voltage to Ground (KV) 15 22 30 30 44
Maximum RIV at 1000kHz (uv) 100 100 200 200 200
Low-frquency puncture puncture voltage average (kV)
130 145 165 186 225
Dry arcing dislance (mm) 178 210 241.3 285 356
Cantilever Failing Load(kN) 1134 1360 1360 1360 1360
Weight (kg) 3.7 5.3 7 10.8 13.5



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