High reputation 24kv Disconnect Switch Post Insulator - 13KN PW-33-Y High Voltage Pin Type Porcelain Insulator – Johnson

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High reputation 24kv Disconnect Switch Post Insulator - 13KN PW-33-Y High Voltage Pin Type Porcelain Insulator – Johnson Detail:

Product Definition

A pin insulator is a component used to support or suspend a wire and to form an electrical insulation between the tower and the wire [1]. Pin type common ceramic insulator porcelain parts and cast steel are glued together with cement adhesive, and the surface of the porcelain parts is coated with a layer of glaze to improve the insulation performance of the insulator. 
Insulators shall have sufficient insulation strength and mechanical strength. During operation, insulators shall not only withstand the action of working voltage and over voltage, but also have sufficient resistance to the erosion of chemical impurities, and can adapt to the influence of temperature change and surrounding environment.

13KN PW-33-Y High Voltage  Pin Type Porcelain Insulator (8)

Product performance

The basic properties of pin insulators include electrical, mechanical and thermal properties. In addition, there are environmental resistance and aging resistance and other properties.

(1) Electrical performance: The destructive discharge along the insulating surface is called flashover, and the flashover characteristic is the main electrical performance of insulators. For different voltage levels, insulators have different voltage tolerance requirements, including power frequency dry and wet voltage tolerance, lightning impact voltage tolerance, lightning impact wave cut-off voltage tolerance, and operation impact voltage tolerance. To avoid breakdown during operation, the breakdown voltage of an insulator is higher than the flashover voltage. In the factory test, the breakdown type porcelain insulator usually goes through the spark test, that is, the high voltage is increased to make frequent sparks occur on the insulation surface, and maintain for a certain time to see whether it is broken down. Some insulators need to undergo corona test, radio interference test, partial discharge test and dielectric loss test. The electrical strength of insulators in high altitude areas decreases due to the decrease in air density, so their withstand voltage should be increased when converted to standard atmospheric conditions. The flashover voltage of polluted insulators when they are affected with moisture is much lower than their dry and wet flashover voltage. Therefore, insulation should be strengthened or pollution resistant insulators should be used in polluted areas, and the creepage distance (the ratio of creepage distance to rated voltage) should be higher than that of normal insulators. Compared with AC insulators, DC insulators have poor electric field distribution, adsorption of pollution particles and electrolysis, low flashover voltage, and generally require special structural design and larger creepage distance.

Pin Type Porcelain Insulator PW-33-Y
type   PW-33-Y
DIMENSIONS
Diameter of shell mm 220
Height mm 260
Creepage distance mm 1000
Net weight,approximate kg 10.8
Electrical performances
Type application voltage kv 35
power frequency wet withstand voltage kv 85
power frequency dry withstand voltage kv 110
Critical impulse flashover voltage,positive kv 190
Critical impulse flashover voltage,negative kv 200
Low frequency puncture voltage kv 165
Mechanical performances
Cantilever strength kn 10
Radio influence voltage date
Test voltage RMS to ground kv 22
Maximum RIV at 1000kHz μv 100

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High reputation 24kv Disconnect Switch Post Insulator - 13KN PW-33-Y High Voltage  Pin Type Porcelain Insulator – Johnson detail pictures

High reputation 24kv Disconnect Switch Post Insulator - 13KN PW-33-Y High Voltage  Pin Type Porcelain Insulator – Johnson detail pictures

High reputation 24kv Disconnect Switch Post Insulator - 13KN PW-33-Y High Voltage  Pin Type Porcelain Insulator – Johnson detail pictures

High reputation 24kv Disconnect Switch Post Insulator - 13KN PW-33-Y High Voltage  Pin Type Porcelain Insulator – Johnson detail pictures

High reputation 24kv Disconnect Switch Post Insulator - 13KN PW-33-Y High Voltage  Pin Type Porcelain Insulator – Johnson detail pictures

High reputation 24kv Disconnect Switch Post Insulator - 13KN PW-33-Y High Voltage  Pin Type Porcelain Insulator – Johnson detail pictures

High reputation 24kv Disconnect Switch Post Insulator - 13KN PW-33-Y High Voltage  Pin Type Porcelain Insulator – Johnson detail pictures


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We support our consumers with ideal good quality merchandise and large level provider. Becoming the specialist manufacturer in this sector, we have attained wealthy practical encounter in producing and managing for High reputation 24kv Disconnect Switch Post Insulator - 13KN PW-33-Y High Voltage Pin Type Porcelain Insulator – Johnson, The product will supply to all over the world, such as: Zurich, Slovenia, Swiss, Most problems between suppliers and clients are due to poor communication. Culturally, suppliers can be reluctant to question things they do not understand. We break down those barriers to ensure you get what you want to the level you expect, when you want it. Faster delivery time and the product you want is our Criterion .
  • This manufacturers not only respected our choice and requirements, but also gave us a lot of good suggestions, ultimately, we successfully completed the procurement tasks.
    5 Stars By Lynn from Macedonia - 2017.06.22 12:49
    Products and services are very good, our leader is very satisfied with this procurement, it is better than we expected,
    5 Stars By Irene from Norwegian - 2017.03.28 16:34

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