36/66/132kV Composite Station

Composite Post Insulator

36/66/132kV Station

36/66/132kV Composite Station

Description

As an alternative to ceramics, composite materials were developed for use in insulators for transmission systems. Such composite insulators are also referred to as non-ceramic insulators (NCI) or polymer insulators, and usually employ insulator housings made of materials such as ethylene propylene rubber (EPR), polytetro fluoro ethylene (PTFE), silicone rubber, or other similar materials.

Compared with the conventional insulators manufactured homogeneously from the material ceramic or glass, composite insulators consist of two components of different materials.

A number of composite insulators made from lighter weight polymeric materials have been developed for use in such high voltage installations. Such composite insulators generally include a fiberglass rod having a number of weather sheds constructed of a highly insulating polymeric material attached to the rod along its length. Composite insulators including shield layers of a synthetic material are given preference mainly because the shield layer of a synthetic material, particularly silicone, is hydrophobic, i.e. the insulators employed mostly outdoors are highly water repellant which is conducive to repelling dirt and thus to low leakage current losses. And also, this is a lightweight structure which facilitates assembly.

Composite polymer insulator is composed of epoxy glass fiber core rod, silicon rubber shed and metal parts.

Composite polymer insulator is of high strength and light weight. A synthetic insulator is 1/5 of that of porcelain insulator, but the circum-tensile strength of insulator is very high. Generally, it can be above 6000MPa.

Its umbrella shed is an organic polymer structure of silicone rubber. Therefore, it has a strong anti-pollution performance.

The product has reliable structure and will not damage the core rod. It belongs to the rod-shaped insulation structure.

Application

As an alternative to ceramics, composite materials were developed for use in insulators for transmission systems. Such composite insulators are also referred to as non-ceramic insulators (NCI) or polymer insulators, and usually employ insulator housings made of materials such as ethylene propylene rubber (EPR), polytetro fluoro ethylene (PTFE), silicone rubber, or other similar materials.

Compared with the conventional insulators manufactured homogeneously from the material ceramic or glass, composite insulators consist of two components of different materials.

A number of composite insulators made from lighter weight polymeric materials have been developed for use in such high voltage installations. Such composite insulators generally include a fiberglass rod having a number of weather sheds constructed of a highly insulating polymeric material attached to the rod along its length. Composite insulators including shield layers of a synthetic material are given preference mainly because the shield layer of a synthetic material, particularly silicone, is hydrophobic, i.e. the insulators employed mostly outdoors are highly water repellant which is conducive to repelling dirt and thus to low leakage current losses. And also, this is a lightweight structure which facilitates assembly.

Specifications

Main dimension & technical data of 36/66/132kV Composite Station Post Insulator :

TypeRated
voltage (KV)
Specified
bending load (kN)
Structure
length (mm)
Min Arc distance (mm)Leakage distance (mm)Lightning impulse withstand BIL (KV)Power frequency withstand(wet) (KV)
FZSW-11/41142651554307542
FZSW-24/824839528076015065
FZSW-33/633643032087018580
FZSW-36/636644533592018595
FZSW-66/86688505852570400130
FZSW-66/1066108607202539350160
FZSW-72.5/12.572.512.57605901950400185
FZSW110/101101010508853330550185
FZSW-126/81268122010553500550185
FZSW-132/1013210150013003600765430
FZSW220/10220102440220070601000395