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Resin Silicon Bushings

Enhanced Safety for Transformer Operators
No Routine Maintenance or Continuous Monitoring Required

Advanced Insulation for Safer, Low‑Maintenance Transformer Operation

Resin silicone bushings combine a solid resin core with a silicone rubber external insulation to deliver high electrical performance, mechanical robustness and enhanced safety. Insulect supplies COMEM combined resin–silicone bushings, designed for modern transformer and power equipment applications where reliability, safety and reduced maintenance are critical.

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Application Overview

COMEM resin silicone bushings are designed for use in oil‑filled power and distribution transformers, as well as other high‑voltage electrical equipment. Typical applications include:

  • Medium‑ and high‑voltage transformer connections
  • Indoor and outdoor transformer installations
  • Applications requiring high creepage distances and pollution resistance
  • Equipment operating in harsh environmental or coastal conditions

The compact design and non‑porous external insulation make them well suited to modern substation environments and space‑constrained installations.

What We Solve For

Traditional bushing technologies can require regular inspection, careful handling and ongoing monitoring. COMEM resin silicone bushings address these challenges by providing:

  • Enhanced safety for personnel and equipment
  • Stable electrical performance without oil leakage or brittle materials
  • Reduced maintenance requirements compared to traditional designs
  • Improved logistics, handling and storage flexibility

This results in lower lifecycle costs, improved operational safety and simplified asset management.

TECHNICAL

Features & Functionality

Solid Resin Core with Silicone Insulation
Solid Resin Core with Silicone Insulation

A rigid resin body combined with silicone rubber sheds delivers excellent dielectric strength and mechanical stability.

High Pollution and Environmental Resistance
High Pollution and Environmental Resistance

Silicone rubber external insulation provides superior performance in polluted, humid and harsh outdoor environments.

Compact and Lightweight Design
Compact and Lightweight Design

Compared to porcelain alternatives, resin silicone bushings offer reduced weight and smaller dimensions, simplifying installation and structural design.

Standards‑Compliant Performance
Standards‑Compliant Performance

Designed and tested in accordance with IEC and IEEE standards for transformer bushings, ensuring reliable operation and regulatory compliance.

Functionality & Options

  • Combined resin–silicone insulation system

  • Indoor and outdoor application suitability

  • Wide range of voltage and current ratings

  • Options for different pollution levels and creepage distances

  • IEC and IEEE design variants available

  • Custom configurations on request

Key Specifications

  • Voltage range: Medium to high voltage (up to 72.5 kV depending on type)

  • Rated current: Up to 6300 A (product dependent)

  • Insulation system: Solid resin core with silicone rubber housing

  • Pollution level: Designed for high‑pollution environments

  • Application: Oil‑filled transformers and electrical equipment

  • Standards: IEC 60137, IEC 60815, IEEE C57.19 

Downloads

COMEM Combined Resin Silicon Bushings

Brochure
ADVANTAGES

Why Choose COMEM Resin Silicone Bushings

Engineered to prioritise safety, reliability and ease of ownership, COMEM resin silicone bushings combine solid insulation technology with modern materials to reduce operational risk and maintenance effort.
 
Highest Safety for People
The solid insulation design eliminates fragile porcelain and reduces the risk of shattering, helping protect personnel during installation, operation and fault conditions.
Enhanced Safety for Transformer Operators
Resin silicone bushings provide stable electrical performance with minimal ageing effects, reducing the need for intervention and improving operational confidence.
No Routine Maintenance or Continuous Monitoring Required
The non‑porous silicone insulation and solid construction minimise ageing and environmental degradation, eliminating the need for constant bushing monitoring.
Easier Asset and Spare Parts Management
These bushings can be transported and stored in any orientation, simplifying logistics, reducing handling risk, and supporting efficient spare parts management.
IMPLEMENTATION

Services & Support

Insulect offers comprehensive services and support for the products we manufacture and specialise in, enhancing value for local utilities, major energy users, equipment manufacturers, and service operators. 

LOCAL TECHNICAL TEAM

Our local technical team provides exceptional support and expertise, ensuring quick response times and personalised service to tackle any challenges that may arise during project execution.

  
ENGINEERING EXPERTISE

Through COMEM, our team utilises advanced technology and industry knowledge to assist customers.


  
PROCUREMENT & LOGISTICS

We facilitate smooth procurement and logistics processes by sourcing from trusted, proven partners and coordinating timely deliveries, ensuring projects remain on schedule and within budget.


  
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