Substation Equipment Insulator & Bushing
High-performance hollow core insulators and composite bushings for EHV/UHV substation equipment — GIS, HGIS, transformers, and circuit breakers rated to ±1100kV.
Overview
Shemar USA offers comprehensive insulator and bushing solutions for substation equipment, including transformers, circuit breakers, GIS, and other high-voltage apparatus. Our products are engineered to deliver exceptional performance in the most demanding utility environments.
Gas Insulated Bushing - High Performance Composite Design
GIS Bushing - UHV Application Ready
Product Features
- UHV rated: 800kV - 1100kV applications
- Advanced composite materials for lightweight design
- Superior insulation performance in harsh environments
- Excellent resistance to environmental factors (UV, pollution, moisture)
- High mechanical strength and seismic resistance
- Maintenance-free operation with 40+ year design life
- IEC/ANSI certified for global deployment
Key Advantages
Shemar USA's equipment insulators and bushings offer significant advantages over traditional porcelain alternatives, ensuring reliable performance in critical substation applications.
Non-explosion
The main body adopts continuous high-strength glass fiber with high mechanical strength and good toughness. No explosion will occur even under extreme operating conditions.
The main body high-strength glass fiber runs through, high strength, good toughness, no explosion under extreme conditions.
Non-brittle fracture
With a fiber content up to 80%, the product adopts a grid-like cross-linked structure for integral load bearing. Under extreme conditions, only cracks will be generated without overall fracture.
Fiber content reaches 80%, grid-like cross-linked structure, integral load bearing. Under extreme conditions, only cracks will be generated without breaking.
Non-flashover
The silicone rubber sheds are made of hydrophobic materials with excellent hydrophobicity and hydrophobic migration performance. It presents superior resistance to pollution flashover, rain flashover and ice flashover.
Silicone rubber umbrella skirt is a hydrophobic material with excellent hydrophobicity and hydrophobic migration properties, with excellent resistance to pollution flashover, rain flashover, and ice flashover.
Long Service Life
Our composite equipment insulators and bushings are designed for a service life of 40+ years, providing long-term reliability and reducing lifecycle costs for utilities.
Designed for 40+ years service life, reducing lifecycle costs and maintenance requirements.
Technical Specifications
Our insulators and bushings are engineered to meet the most stringent international standards, ensuring reliable performance in critical substation applications.
800kV Equipment Bushing Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 800 kV |
| Rated Current | Up to 6300 A |
| Lightning Impulse Withstand | 2100 kV |
| Switching Impulse Withstand | 1550 kV |
| Power Frequency Withstand (1 min) | 740 kV |
| Insulation Medium | SF6 Gas / Oil |
| Material | Composite (Silicone Rubber + FRP) |
| Design Life | ≥ 40 years |
1100kV Equipment Bushing Specifications
| Parameter | Specification |
|---|---|
| Rated Voltage | 1100 kV |
| Rated Current | Up to 8000 A |
| Lightning Impulse Withstand | 2400 kV |
| Switching Impulse Withstand | 1800 kV |
| Power Frequency Withstand (1 min) | 960 kV |
| Insulation Medium | SF6 Gas / Oil |
| Material | Composite (Silicone Rubber + FRP) |
| Design Life | ≥ 40 years |
Typical UHV Substation Projects
Explore our successful UHV substation projects that demonstrate the reliability and performance of our equipment insulators and bushings in critical applications.
765kV EHV Substation Equipment
Our 765kV equipment bushings were selected for major UHV substation projects, providing reliable insulation performance for transformers, circuit breakers, and GIS in harsh environmental conditions. The composite design significantly reduced weight compared to traditional porcelain bushings while maintaining superior electrical and mechanical properties.
Project Highlights:
- 765kV voltage level
- Zero failures in service
- 40+ years design life
- Lightweight composite design
1100kV UHV Substation Equipment
For the world's highest voltage AC substations, our 1100kV equipment bushings delivered unmatched insulation performance. The advanced composite materials ensure reliable operation under extreme electrical stress and environmental conditions, setting new industry benchmarks for UHV applications.
Project Highlights:
- World's highest voltage level (1100kV)
- 100% test pass rate
- Zero maintenance required
- Superior environmental resistance
Download Resources
Access our comprehensive technical documentation including product specifications, test reports, and engineering drawings.
800kV GIS Bushing Test Report
Comprehensive type test report for 800kV GIS bushings
1100kV GIS Bushing Test Report
Comprehensive type test report for 1100kV GIS bushings
Product Brochure
Complete product catalog with specifications and dimensions
Engineering Drawings
2D and 3D CAD drawings for installation reference
Aging Reports
Long-term aging performance data and field validation records
Installation Guide
Video tutorials and step-by-step installation manuals
Ready to Enhance Your Substation Equipment?
Our engineering team is ready to help you select the optimal insulator and bushing solution for your substation equipment. Contact us today for a comprehensive assessment.
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