In today’s rapidly growing power sector, reliable electrical components are essential for safe and efficient energy transmission. Among these components, epoxy bushings for transformers play a crucial role in maintaining insulation, safety, and long-term operational performance.As a trusted epoxy bushing manufacturer in India, we specialize in manufacturing high-quality epoxy resin bushings for transformers, solar power systems, wind energy projects, industrial power distribution, and commercial electrical infrastructure.
High-Quality Epoxy Bushings with Advanced Manufacturing Technology
Our manufacturing facility is equipped with a complete state-of-the-art in-house production setup, including Automatic Pressure Gelation (APG) machines and advanced quality control systems. This modern manufacturing process ensures precision, consistency, and superior product reliability.
Every epoxy bushing is manufactured under strict process control to eliminate common defects such as:
- Pinholes
- Surface defects
- Internal voids
- Oil leakage issues
This allows us to deliver 100% oil leakage-free epoxy bushings, ensuring maximum transformer safety and performance.
Premium Raw Materials for Superior Performance
We use only premium-grade materials to manufacture our transformer bushings, including:
- High-quality epoxy resin from reputed manufacturers
- ETP-grade copper with purity greater than 99.3%
- High-performance tin plating for improved conductivity and corrosion resistance
These materials enhance electrical conductivity, thermal stability, and mechanical strength.
Comprehensive Testing for Reliable Transformer Bushings
Quality assurance is a major part of our manufacturing process. Every product undergoes rigorous testing before delivery.
Our in-house testing capabilities include:
- 100% High Voltage (HV) testing
- Thermal cycle testing
- Temperature rise testing up to 2500A
- Glass Transition Temperature (Tg) testing above 130°C
Additionally, all products are type-tested at NABL-approved laboratories and comply with global and Indian standards, including:
- IEC 60137
- IS:2099
- BS 2562 for Mooblocks
This ensures our epoxy bushings meet strict international safety and performance requirements.
Wide Range of Epoxy Bushings for Transformer Applications
We manufacture epoxy bushings for a broad range of transformer applications across industrial, commercial, residential, and renewable energy sectors.
Industrial & Commercial Transformer Bushings
Our product range includes:
- 1.1kV epoxy bushings
- Current ratings from 630A to 5000A
These are widely used in transformers ranging from:
- 500 KVA to 4 MVA
- Voltage classes:
- 33kV/440V
- 22kV/440V
- 11kV/440V
These bushings are ideal for factories, commercial buildings, and power distribution systems.
Epoxy Bushing Manufacturer for Solar and Wind Energy Transformers
Renewable energy is one of the fastest-growing sectors in India, and we actively support this transformation.We manufacture epoxy bushings for solar transformers and wind power transformers with specifications including:
- 3.6kV rating
- Current capacities of 1100A, 1400A, 2150A, 3300A, 4000A, and 5000A
Our bushings are used in renewable energy transformers up to 17.5 MVA.We supply to major solar and wind projects across Rajasthan, Maharashtra, Gujarat, Karnataka, and Tamil Nadu.
Four Terminal Resin Cast Monoblocks for Distribution Transformers
In modern power distribution systems, reliability, safety, and efficient power delivery are essential. Four Terminal Resin Cast Monoblocks are designed to provide a robust and efficient solution for supplying power to outgoing low-tension (LT) feeders from oil-filled distribution transformers.
Operating at 0.433 Volt (1 kV class), these monoblocks serve as a modern alternative to the conventional arrangement of using four separate porcelain bushings mounted on the LT side of transformer tanks. By replacing multiple individual bushings with a single integrated unit, resin cast monoblocks help simplify transformer design while improving durability and performance.
Why Resin Cast Monoblocks are Better than Conventional Porcelain Bushings
Traditional transformer setups often rely on separate porcelain bushings, which can increase installation complexity and maintenance requirements. In comparison, resin cast monoblocks offer several advantages:
- Compact and integrated design
- Improved mechanical strength
- Better resistance to environmental stress
- Reduced maintenance requirements
- Enhanced electrical insulation and safety
Because of their durable resin cast construction, these monoblocks are highly reliable even under demanding operating conditions.
Applications in Distribution Transformers
Four Terminal Resin Cast Monoblocks are primarily used in 11/0.433 kV distribution transformers, where efficient low-voltage power distribution is critical. They ensure stable and safe power delivery to multiple outgoing LT feeders, making them suitable for:
- Power distribution utilities
- Industrial electrical systems
- Commercial infrastructure
- Residential power networks
These monoblocks play an important role in ensuring uninterrupted electricity supply across various sectors.
Product Range and Technical Specifications
Our product range includes 1.1 kV Four Terminal Resin Cast Monoblocks with current ratings ranging from 1700 Amps to 2500 Amps. The products are available with multiple take-off configurations, allowing flexibility based on transformer design and power distribution requirements.
Key specifications include:
- Voltage Class: 1.1 kV
- Current Rating: 1700A to 2500A
- Configuration: Four Terminal with Multiple Take-Offs
- Application: Oil-Filled Distribution Transformers
Trusted Epoxy Bushing Supplier Across India
Our customer network spans all states and union territories across India. We proudly supply to:
- Transformer manufacturers
- OEMs
- Power utilities
- Solar EPC companies
- Wind energy developers
We are recognized as a preferred supplier for major transformer manufacturers and power sector companies nationwide.
Your Trusted Epoxy Bushing Manufacturer?
Choosing the right epoxy bushing supplier directly impacts transformer efficiency and lifespan. Here’s why customers trust us:
- 20+ years of epoxy manufacturing experience
- Modern APG manufacturing technology
- In-house NABL-certified testing facilities
- 100% quality-tested products
- Compliance with global standards
- Pan-India supply capability
- Trusted by leading OEMs and EPC companies
Powering India’s Energy Future
As India expands its power infrastructure and renewable energy capacity, demand for high-performance transformer components continues to rise. CTR mission is to deliver reliable, durable, and high-quality epoxy bushings for transformers that help power industries, cities, and renewable energy projects across the country.
With advanced manufacturing, rigorous testing, and decades of expertise, we continue to support India’s journey toward a stronger and more sustainable energy future. Contact us today to discuss your requirements and discover the right solution for your business.