Transformer Winding Conductor

Paper Covered Aluminium Strips

High-Quality Insulated Aluminium Conductors for Transformer & Electrical Winding Applications

Paper Covered Aluminium Strips are specially engineered conductors used in transformer manufacturing and other heavy electrical applications where dependable insulation, mechanical strength, and efficient electrical performance are essential. These conductors are manufactured from high-conductivity EC-grade aluminium strips and wrapped with multiple layers of high-quality insulating paper such as Kraft, Crepe, or Thermally Upgraded Paper (TUP), depending on the application requirements.

At Shreyas Wires, we supply premium-quality Paper Covered Aluminium Strips designed to meet the demanding requirements of transformer manufacturers, electrical equipment manufacturers, repair industries, and OEMs. Our products combine the lightweight advantages of aluminium with the excellent dielectric properties of paper insulation, making them an ideal choice for modern transformer winding applications.

Whether you require conductors for distribution transformers, power transformers, reactors, or industrial electrical equipment, our paper covered aluminium strips deliver reliable performance, excellent insulation, and long service life.

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Product Overview

What are Paper Covered Aluminium Strips?

Paper Covered Aluminium Strips are rectangular aluminium conductors insulated by wrapping one or more layers of specialised insulating paper around the bare conductor. After assembly into transformer windings, the paper insulation is typically impregnated with transformer oil or insulating varnish, improving dielectric strength and thermal performance.

Unlike enamel insulation, paper insulation offers superior compatibility with oil-filled transformers and provides excellent mechanical flexibility during winding operations. These conductors are widely used in low-voltage and high-voltage transformer windings, reactors, and other heavy-duty electrical equipment.

Paper insulated aluminium strip for transformer windings

Product Highlights

Features of Paper Covered Aluminium Strips

Our Paper Covered Aluminium Strips are manufactured to deliver reliable electrical performance and long-term durability.

Manufactured from EC Grade aluminium
Uniform paper insulation covering
Lightweight compared to copper conductors
Excellent dielectric strength
Good thermal performance
High mechanical flexibility
Smooth conductor surface
Consistent strip dimensions
Excellent winding characteristics
Compatible with transformer oils and insulating varnishes
Corrosion-resistant aluminium conductor
Available with multiple paper covering options
Long operational service life

Product Range

Paper Insulation Options

Different transformer designs require different insulation systems. Depending on the application, paper-covered aluminium strips can be supplied with:

Kraft Paper

The most commonly used insulation material for distribution and power transformers. It provides excellent dielectric properties and mechanical strength.

Thermally Upgraded Kraft Paper (TUK)

Designed for transformers operating at higher temperatures, offering improved thermal endurance and longer insulation life.

Crepe Paper

Provides enhanced flexibility and oil absorption, making it suitable for winding applications where improved conformability is required.

Multiple Paper Layer Covering

Available in Double Paper Covered (DPC), Triple Paper Covered (TPC), and Multi-Layer Paper Covering (MPC). The number of paper layers depends on the voltage rating, insulation requirement, and transformer design.

Specifications

Technical Specifications

Conductor Material	Electrical Conductivity (EC Grade) Aluminium
Conductor Shape	Rectangular Aluminium Strip
Insulation Materials	Kraft Paper Thermally Upgraded Kraft Paper (TUK) Crepe Paper
Paper Covering Types	Double Paper Covered (DPC) Triple Paper Covered (TPC) Multi Paper Covered (MPC)
Surface Finish	Smooth aluminium strip with uniform paper wrapping for consistent winding performance.
Standards	Manufactured in accordance with applicable customer specifications and recognised industry standards for transformer winding conductors.

Where It’s Used

Applications

Paper Covered Aluminium Strips are widely used in heavy electrical equipment where paper insulation is preferred.

Transformer Manufacturing

Distribution Transformers
Power Transformers
Oil-Immersed Transformers
Dry-Type Transformers
Instrument Transformers

Electrical Equipment

Reactors
Welding Transformers
Voltage Regulators
Industrial Coils
Heavy Electrical Machines

Power Industry

Electrical Utilities
Transformer Repair Workshops
Power Distribution Equipment
Electrical Panel Manufacturers

Why Paper Covered Aluminium

Advantages of Paper Covered Aluminium Strips

These conductors are particularly suitable for oil-filled transformer windings because the paper insulation provides excellent compatibility with insulating oils and reliable dielectric performance.

Lightweight Construction

Aluminium has approximately one-third the density of copper, reducing the overall weight of transformers and simplifying handling during manufacturing and installation.

Cost-Effective Solution

Provides an economical alternative to copper while maintaining dependable electrical performance in designs intended for aluminium conductors.

Excellent Electrical Insulation

The paper insulation system delivers strong dielectric properties, making it suitable for high-voltage transformer winding applications.

Good Oil Compatibility

Paper insulation readily absorbs transformer oil, improving insulation performance and heat dissipation within oil-filled transformers.

Mechanical Flexibility

The paper covering allows smooth winding around transformer cores while reducing the risk of insulation damage during manufacturing.

Reliable Long-Term Performance

When correctly installed and impregnated, paper covered aluminium strips provide excellent durability and dependable service in demanding electrical environments.

Our Commitment

Quality Assurance

At Shreyas Wires, quality is a priority in every product we supply. Each product is intended to support efficient transformer manufacturing and dependable electrical performance.

Our Paper Covered Aluminium Strips are selected to ensure:

Accurate strip dimensions
Uniform paper insulation thickness
Consistent conductor quality
Excellent winding performance
Reliable dielectric strength
Smooth paper wrapping
Long operational life

Who We Serve

Industries We Serve

Our Paper Covered Aluminium Strips are supplied to customers across a wide range of industries.

Transformer Manufacturers Distribution Transformer OEMs Power Equipment Manufacturers Electrical Utilities Electrical Contractors Transformer Repair & Rewinding Companies Industrial Electrical Equipment Manufacturers Renewable Energy Equipment Manufacturers Heavy Engineering Industries

Paper covered aluminium strip manufacturing at Shreyas Magnametals

Our Advantage

Why Choose Shreyas Wires?

Industry Experience

Since 2007, Shreyas Wires has supplied electrical winding conductors and related products to customers across multiple industries.

Comprehensive Product Range

We offer enamelled copper wires, enamelled aluminium wires, paper-covered conductors, bus bars, foils, and other electrical products.

Reliable Product Quality

Our products are selected to deliver consistent performance, durability, and reliability for demanding applications.

Technical Guidance

Our knowledgeable team helps customers select the appropriate conductor type, insulation system, and product specification based on their application.

Customer-Focused Service

We are committed to providing dependable support, timely responses, and long-term business relationships.

Have Questions?

Frequently Asked Questions

Paper Covered Aluminium Strips are EC-grade aluminium conductors insulated with one or more layers of specialised paper for transformer and heavy electrical winding applications.

They are primarily used in distribution transformers, power transformers, oil-immersed transformers, reactors, welding transformers, and other electrical equipment requiring paper-insulated conductors.

Common insulation materials include Kraft Paper, Thermally Upgraded Kraft Paper (TUK), and Crepe Paper, depending on the application and thermal requirements.

DPC (Double Paper Covered) uses two layers of insulation paper, while TPC (Triple Paper Covered) uses three layers to provide increased insulation thickness and dielectric strength.

Aluminium offers reduced weight and lower material cost. When equipment is properly designed for aluminium conductors, it provides reliable electrical performance while helping reduce overall transformer weight.

Yes. Paper Covered Aluminium Strips can be supplied in a range of widths, thicknesses, insulation builds, and paper covering configurations based on customer specifications.

Yes. Paper-covered aluminium strips are specifically designed for oil-immersed transformer windings, where the paper insulation works effectively with transformer oil to provide excellent dielectric performance.

The correct specification depends on transformer design, operating voltage, current capacity, insulation class, strip dimensions, and winding configuration. Our team can assist you in selecting the most suitable product.

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Paper Covered Aluminium Strips

Paper Covered Aluminium Strips

High-Quality Insulated Aluminium Conductors for Transformer & Electrical Winding Applications

What are Paper Covered Aluminium Strips?

Features of Paper Covered Aluminium Strips