The C TYPE TRANSFORMER, the core of the transformer is C-shaped and two C-shaped cores can be combined to a closed core with a mouth shape. The material of the core is usually cold rolled silicon steel sheet. It has the advantages of small magnetic leakage, small size and core structure. So, it is often used to make a variety of small transformers. The operating principle is the same as the general transformer. When there is AC current in the primary coil, An AC magnetic flux is created in the core to induce a current in the secondary coil, to change the output voltage. It is widely used in various electronic and industrial equipment.

Product Features

  • Efficient Energy Transfer:

Our C Type Transformers are designed with a core-type configuration, allowing for efficient energy transfer between primary and secondary windings.

  • Robust Construction:

Constructed with high-quality ferromagnetic materials, our transformers offer reliable performance and durability.

  • Compact Design:

With a space-saving "E" shaped core, our transformers are ideal for applications with limited space requirements.

  • High Efficiency:

Our C Type Transformers are engineered to minimize energy losses, resulting in high efficiency and reduced operating costs.

  • Wide Range of Applications:

Suitable for various voltage and power ratings, our transformers find applications in industries such as power distribution, voltage regulation, and industrial automation.


  • Power Distribution:

Our C Type Transformers play a crucial role in distributing electrical power efficiently and reliably across various industries and applications.

  • Voltage Regulation:

With precise voltage control capabilities, our transformers ensure stable and consistent voltage levels, essential for sensitive electronic equipment and machinery.

  • Industrial Automation:

From powering motors to controlling machinery, our transformers provide the necessary voltage transformation for seamless operation in industrial automation processes.

  • Renewable Energy:

Integrated into renewable energy systems, our transformers facilitate the efficient conversion and distribution of electricity generated from sources such as solar and wind power.

  • Commercial and Residential:

Whether in commercial buildings or residential complexes, our transformers deliver dependable power supply, ensuring uninterrupted operation of essential electrical systems and equipment.

Company Advantages

  • Industry Expertise:

With years of experience in transformer design and manufacturing, we offer expertise and insight into meeting the unique needs of our customers.

  • Quality Assurance:

Committed to quality excellence, our transformers undergo rigorous testing and inspection processes to ensure compliance with industry standards and customer requirements.

  • Customization Options:

We understand that every application is unique. Our flexible manufacturing capabilities allow us to customize transformers to meet specific voltage, power, and dimensional requirements.

  • Customer Support:

From product selection to after-sales service, our dedicated team provides comprehensive support and assistance to ensure customer satisfaction.

  • Innovation and Technology:

Leveraging the latest advancements in transformer technology, we continuously innovate to deliver products that meet the evolving demands of the industry.


1. What is C core transformer?

A C-core transformer is a type of transformer that utilizes a core shaped like the letter "C". The core consists of a single continuous piece of ferromagnetic material, such as iron or silicon steel, formed into a C-shaped loop. This core design allows for the primary and secondary windings of the transformer to be wound around the central protrusion of the "C" core.

The C-core transformer offers several advantages over other transformer designs:

  • Compact Size:

The C-core design results in a more compact transformer compared to other core shapes, such as E-I or toroidal cores. This makes C-core transformers suitable for applications where space is limited.

  • Efficient Magnetic Circuit:

The single-piece C-core provides a continuous magnetic path for the flow of magnetic flux, reducing magnetic losses and improving efficiency.

  • Low Leakage Inductance:

The winding configuration around the central protrusion of the C-core helps minimize leakage inductance, resulting in better performance and reduced electromagnetic interference.

  • High Power Density:

Due to their compact size and efficient magnetic circuit, C-core transformers offer high power density, allowing them to handle significant power levels in a relatively small footprint.

C-core transformers are commonly used in various applications, including audio amplifiers, power supplies, telecommunications equipment, and industrial machinery. Their compact size, high efficiency, and low leakage inductance make them suitable for a wide range of electrical and electronic devices where space-saving and reliable performance are important considerations.


2. What is C rating in transformer?

In the context of transformers, the "C rating" typically refers to the temperature rise rating of the transformer's insulation system. It indicates the maximum allowable temperature rise of the transformer's windings and insulation above the surrounding ambient temperature under normal operating conditions.

The temperature rise rating is an important parameter for transformers as it directly affects their efficiency, reliability, and lifespan. Transformers generate heat during operation due to electrical losses (such as copper losses in the windings and core losses in the magnetic core). Excessive heat can degrade the insulation system, leading to insulation breakdown, reduced efficiency, and ultimately, transformer failure.

The C rating is typically expressed as a temperature rise above the ambient temperature, measured in degrees Celsius (°C) or Fahrenheit (°F). Common C ratings for transformers include 55°C, 65°C, 80°C, and 115°C, among others. For example, a transformer with a C rating of 80°C means that the temperature rise of the windings and insulation should not exceed 80°C above the ambient temperature during normal operation.

It's important to note that transformers are designed and rated based on specific temperature rise criteria to ensure safe and reliable operation. Proper cooling methods, such as natural convection, forced air cooling, or liquid cooling, are often employed to dissipate heat and keep the transformer within its temperature rise limits.

When selecting a transformer for a particular application, it's essential to consider the C rating along with other factors such as load conditions, ambient temperature, cooling methods, and environmental factors to ensure optimal performance and longevity of the transformer.

3. What is core type transformer?

A core-type transformer is a type of transformer design where the windings surround the magnetic core. In this configuration, the primary and secondary windings are wound around two separate legs of the core, forming an "E" shape. The core is typically made of ferromagnetic material, such as iron or silicon steel, and consists of two parallel legs connected by a yoke.

In a core-type transformer, the windings are placed on the limbs of the core, which helps to maximize the magnetic coupling between the primary and secondary windings. This design allows for efficient energy transfer and reduces leakage flux, resulting in improved transformer performance.

Core-type transformers are commonly used in various electrical and electronic applications, including power distribution, voltage regulation, and isolation. They are available in different configurations, such as single-phase and three-phase, and can be designed for various voltage and power ratings.

Overall, core-type transformers are widely used due to their relatively simple design, high efficiency, and versatility in meeting the needs of different applications in electrical power systems.

4. What are the 3 types of transformers?

There are primarily three types of transformers based on their core construction:

  • Core-type Transformer:

In a core-type transformer, the windings surround the magnetic core. The core is typically made of ferromagnetic material, such as iron or silicon steel, and consists of two parallel legs connected by a yoke. The windings are wound around the legs of the core, forming an "E" shape. Core-type transformers are commonly used in various electrical and electronic applications due to their efficient energy transfer and relatively simple design.

  • Shell-type Transformer:

In a shell-type transformer, the windings are placed inside the magnetic core, which surrounds them. The core consists of two cylindrical or rectangular shells, with the windings sandwiched between them. Shell-type transformers offer better short-circuit strength and are often used in high-voltage and high-power applications where robust construction is required.

  • Toroidal Transformer:

In a toroidal transformer, the magnetic core is toroidally or ring-shaped, with the primary and secondary windings wound concentrically around it. Toroidal transformers offer advantages such as compact size, low electromagnetic interference (EMI), and high efficiency. They are commonly used in audio equipment, medical devices, and other applications where space-saving and high performance are important.

These three types of transformers differ in their core construction, winding arrangement, and performance characteristics, making them suitable for different applications and operating conditions. Each type has its advantages and disadvantages, and the choice of transformer type depends on factors such as power rating, efficiency requirements, space constraints, and application-specific needs.

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