765kV+ Grid Solutions Products Why Shemar Insights Start a Project
Substation Insulators
Product Series

Substation Post Insulators

Complete range of composite post insulators for EHV/UHV substations — from 69kV distribution class to 1200kV UHV, engineered for North American grid requirements.

1200kVMax Voltage
40-YearDesign Life
ANSI C29Certified
USA-MadeNC

Industry Challenge

Electricity is the most important terminal energy for humanity. The reliability and economy of electricity directly affect the competitiveness of every country and enterprise. For nearly a century, the immaturity of traditional power outer insulation technology has caused the most grid accidents and the greatest waste, specifically reflected in:

  • Transmission outer insulation has problems such as wind deflection flashover, pollution flashover, rain flashover, ice flashover, bird droppings flashover, etc.
  • Substation outer insulation has problems such as explosion, pollution flashover, rain flashover, ice flashover, brittle fracture, etc.
  • Distribution outer insulation has problems such as lightning flashover, disconnection, bird droppings flashover, etc.

According to incomplete statistics, traditional outer insulation products account for a small proportion (only 2%~3%) of the one-time construction cost of the power grid, but after completion, 60%-70% of the annual operation and maintenance costs of the power grid are spent on outer insulation. The global power grid loses more than 400 billion yuan every year due to traditional outer insulation, and it is growing at a rate of 20 billion yuan every year.

Substation Insulators (By Application)

Shemar USA offers a comprehensive range of substation insulators designed to meet the specific requirements of various substation applications. Our insulators are organized by application type to provide the optimal solution for your specific needs.

Applications

Bus Support Insulator

Bus Support Insulators

Insulators designed to support busbars in substation environments.

  • Composite bus support insulators
  • Porcelain bus support insulators
  • High mechanical strength
  • Excellent dielectric properties
Post Insulator

Post Insulators

Insulators used for supporting and isolating equipment in substations.

  • Composite post insulators
  • Porcelain post insulators
  • High voltage ratings
  • Weather resistant
Line Post Insulator

Line Post Insulators

Insulators used for supporting overhead lines in substation areas.

  • Composite line post insulators
  • Porcelain line post insulators
  • Easy installation
  • Long service life
Transformer Bushing

Transformer Bushings

Insulators used to bring electrical connections through transformer cases.

  • Composite bushings
  • Porcelain bushings
  • High voltage insulation
  • Thermal stability

Product Attachments

Download technical specifications, installation guides, and other product-related documents for our substation insulators.

Product Catalog

Comprehensive catalog of all substation insulators by application type.

Technical Specifications

Detailed technical data sheets for each type of substation insulator.

Installation Guide

Step-by-step instructions for proper installation of substation insulators.

Test Reports

Certification and test reports for substation insulators.

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