Product Introduction：
The composite station post insulators are widely applied to disconnector,devices in electric transformer substations, convertor stations and tubular bus-bar and other primary equipment. With so many special advantages, composite station post insulator is increasing its market shares. According to company standard Q/GDW-383 SMART CONVERTOR TECHNOLOGY GUIDE, which is stated by State Grid Corporation of China, “primary equipment should be with high reliability, apply composition material as outer insulation, and suitable for the working environment.
According to customers requirements, post insulator can be made for voltage of 33kV, 69kV, 132kV, 230KV, 300kV, 400kV, 500kV ...
Mostly, the plymer post insulators are used to support bus-bars in transformer sub-station yards, support breakers in switchgear, and support capacitor banks etc. These plymer post insulators are generally subjected to bending, torsion and compression forces in service. They may also be installed horizontally, vertically, or underhung some times, and different installations will be accoring to different applications. They can be designs according to IEC, ANSI and other standards or to customer specification, in the factory of GW.
Product parameters table:
Fig.28 24kv composite post insulator
General dimension and characteristic of 24kv composite post insulator
|
No. |
Fig. |
Type |
Rated voltage KV |
Specified mechanical Bending load KN |
Section height H, mm |
Minimum arcing distance H,mm |
Large shed diameter D, mm |
Small shed diameter D,mm |
Shed spacing B, mm |
Minimum nominal creepage distance L, mm |
Lighting impulse withstand voltage≥ |
Wet power frequency voltage≥ |
Weight kg |
|
1 |
28 |
FZ-24/8 |
24 |
8 |
410±5 |
280 |
157 |
105 |
51 |
900 |
150 |
80 |
4.2 |
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