PDF
Substation, traction, line post insulators

Substation, traction, line post insulators include solid core station post insulators, line post insulators, traction insulators for railway electrification, apparatus porcelain insulators as per the following specifications and features.

Solid core station post insulators   Solid core line post insulators

Substation, traction, line post insulators:
Solid core station post insulators:
Specifications:
Rating: up to 800 kV
Creepage distance: 25 and 31mm /kV
Applicable standards: IS, IEC, ANSI
Features:
Solid core station post insulators are comparatively lighter and have smaller diameters than other types of post insulators of similar voltage class. These are ideally suitable for compact installations which result in slim and neat appearance and afford better harmony with other modern apparatus in any EHV/UHV substation.
Solid core station post insulators have superior antipollution performance, low RIV, better arc resistibility and lower deflection under cantilever load.

Long rod insulators:
Specifications:
Rating: up to 800 kV
Creepage distance: 25 and 31mm /kV
Applicable standards: IS, IEC, ANSI
Features:
Long rod insulators are absolutely puncture-proof, possess high arc resistibility and are free from cement growth trouble.
Long rod insulators can be used at suspension and tension locations both as single and multiple strings as per system requirements.
Standard long rod insulators have high strength in compression and tension, provide higher leakage distance with superior self-cleaning characteristics and are lighter when compared to disc insulator strings of similar voltage class.
These insulators are useful for reducing the width of the right of way with consequential economy in the design of the overhead line.

Traction insulators for railway electrification:
Specifications:
Rating: up to 25 kV
Creepage distance: 25 and 31mm /kV
Applicable standards: IS, IEC, RDSO specifications
Features:
Traction insulators are 25 KV OHE insulators manufactured for Indian Railways. These are solid core insulators suitable for normal and polluted zones and are designed as per RDSO specifications.

Apparatus porcelain insulators:
Specifications:
Either fitted with metallic flanges or without flanges for SF6 circuit breakers, instrument transformers, condensor bushings, and lightning arresters upto 800 kV
Maximum height in one unit construction: up to 2600mm
Maximum diameter: 650mm
Bore can be parallel, taper or bulge as per customer's specific design
Applicable standards: IS, IEC, European norms 50062, ANSI.
Features:
The design concept for hollow porcelains is dependant on the complete design of electrical equipment such as SF6 circuit breakers, air-blast circuit breakers, minimum-oil circuit breakers, instrument transformers, condenser bushing and lightning arresters.
The porcelains are designed in consultation with the manufacturers of equipment so as to meet the electrical and mechanical requirements. The manufacturing possibilities of shape, size and dimensional tolerances of large hollow porcelains comply with Indian and international standards.

Solid core line post insulators:
Specifications:
Rating: up to 66 kV
Creepage distance: 25 & 31mm /kV
Applicable standards: IEC, ANSI
Features:
Solid core line post insulators can be used as support for conductors on cross-arms of transmission and distribution line poles. These insulators are recommended for polluted zones and areas prone to vandal damages.
Even if the insulator shed is damaged, there will be little decrease in flashover voltage and power supply will not be disturbed. The damaged insulator can be left in service and replaced conveniently. No change in cross arm is necessary, if pin type insulators are replaced by line post insulators during maintenance.


Relative Articles:
IXOSIL MSA Slip-on Joint
Insulator metal
Insulator structure
550 kV high-voltage cables

Orient is an international line post insulator manufacturer and supplier of high quality porcelain line post insulators and porcelain pin post insulator.
Copyright ©Zhengzhou Orient Power Co., Ltd. All Rights Reserved.     sales@orientinsulators.com     Tel: +86 13673997131