8+FAQ About the Power Transformer Manufacturers

One of the main factors that drive this market is increasing energy efficiency. Power transformer manufacturers also provide hundreds of specific power conversion ratings for various applications. A good example of a power transformer manufacturer is DAELIM.

The company has provided competitive yet economical prices while delivering high-quality equipment to the electric sector for 15 years. It has also adhered to international standards such as ANSI, IEEE, IEC, CSA, and AS/NZ.

Here we discuss some of the most popular power transformer manufacturers like DAELIM around the globe today.

Power Transformer Manufacturers
Power Transformer Manufacturers

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What Are Power Transformers?

Ever since transformers were commercially made in the late 1800s, the device has gained popularity worldwide. But what exactly is a power transformer?

In its simplest definition, a power transformer converts power from one circuit to another without changing frequency.

It distributes electrical energy between the distribution primary circuits and the generator in any electronic or electrical circuit component. 

The device uses Faraday’s law of electromagnetic induction and mutual induction to work properly.

There are different kinds of power transformer but mainly falls into these two categories:

Voltage Conversion

There are two different power transformers under this category: step-up or step-down.

In principle, a step-up transformer converts low-voltage (LV) and high-current input to the high-voltage (HV) and low-current value.

Step-down transformers, on the other hand, are the opposite of step-up transformers.

They transform HV and low-current input to LV and high-current value.

Phase Design

The difference between a single-phase and a three-phase power transformer is the number of windings they have.

As its name implies, a single-phase power transformer only has one copper winding.

In contrast, a three-phase transformer has three sets of primary and secondary windings.

How Do Power Transformers Work?

Any power transformer borrows the principle of electromagnetic induction of Faraday’s law. To understand the intricacies of how power transformers work, one should first know the parts involved. There are three fundamental parts of a transformer:

  • Core – a transformer’s core holds the windings and provides a pathway for the magnetic flux. The diameter of the core will increase as you lose more copper, iron, or both.
  • Primary winding – a coil of wire connected to an external source and receives power.
  • Secondary winding – the coil that distributes energy to the load at the converted or altered voltage.

Here’s how a power transformer works; When an alternating current is given to the primary winding, an alternating magnetic flux is created in the iron core. The majority of this flux remains within the core, and only a small portion of it flows through the air.

The alternating magnetic flux in the iron core then connects the turns of the secondary windings, causing a voltage to be generated. It explains why the main has a voltage, and the secondary has a voltage, but they are not connected.

What Is A Power Transformer Used For?

Most companies use a power transformer to increase or decrease the voltage level in an AC circuit. But there’s more to it than that. Below are the other applications and uses of a power transformer:

  • Changing the value of an inductor or capacitor in an alternating current circuit
  • Hampering DC from flowing from one circuit to another
  • Segregate two electric circuits
  • Decreasing power losses during transmission of electric electricity
  • Increasing the voltage level at the power-producing site before transmission and distribution can take place
  • Favored in long-distance consumer cases

What Are The Top Power Transformer Manufacturers In Europe?

Power Transformer Manufacturers
Power Transformer Manufacturers

There are many large power transformer manufacturers worldwide, and some of them are found in Europe. Here are some of the top power transformer manufacturers in the EU:


Siemens is one of the biggest technology companies globally and one of the power transformer manufacturers situated in Germany.

It has been around for over a century and a half and still produces quality products today.

In 2020, they closed the year with €57.1 billion in annual sales.

Schneider Electric

Another power transformer manufacturer in Europe, Schneider Electric, doesn’t falter behind. Last year, it garnered €25.2 billion in revenue with a Gross Margin of 40.4%.

The company started in 1836 that primarily delivers smart energy and automation solutions for efficiency and sustainability.

Its headquarters is based in France and is a Fortune Global 500 company.


Another power transformer manufacturer in Europe, Schneider Electric, doesn’t falter behind. Last year, it garnered €25.2 billion in revenue with a Gross Margin of 40.4%.

The company started in 1836 that primarily delivers smart energy and automation solutions for efficiency and sustainability.

Its headquarters is based in France and is a Fortune Global 500 company.

What Are The Top Power Transformer Manufacturers In the USA?

Different industrial transformer manufacturers are found in the USA. Here’s a list of the top power transformer manufacturers in the USA:

Transformer Manufacturers
Transformer Manufacturers

Triad Magnetics

For 75 years, Triad Magnetics has become one of the best power transformer manufacturers globally.

It is estimated that the company has an annual sales of $10 million.

The company’s mission is to understand an individual’s magnetic needs and supply the necessary product.

Triad Magnetics executes its mission through meticulous design with collaboration with clients.

The manufacturer is located in Perris, California.

Neeltran, Inc.

Another power transformer manufacturer in the USA, Neeltran, Inc., is currently rising to be the best in the country. To date, it has an estimated annual sales of $17.6M per year. Its main base is located in New Milford, Connecticut.

Founded in 1973, the continuous growth of the company is the result of dedication to its clients.

Neeltran, Inc. serves its clients right from the beginning until the end of the product’s life.

Pacific Transformer Corp

Pacific Transformer strives to make ends meet for its clients, one of the leading industrial transformer manufacturers in the US. Currently, it is sitting at an estimate of over $16 million in annual sales.

It has locations in different countries, but its headquarters are in California.

Established in 1981, numerous electric transformers, both custom and standard, have been manufactured.

These transformers can be of the audio, toroidal, low-profile, power, or inverter variety.

Pico Electronics, Inc.

Pico Electronics, Inc. is solely the power transformer manufacturer in the USA that developed small-scale transformers.

Founded in 1967, it has become a million-dollar company with an estimated $1.6 million annual sales.

It is located in New York and specializes in miniature transformers in fields like commercial flights and military.

MPS Industries, Inc.

MPS Industries, Inc. is one of the many industrial transformer manufacturers located in California.

It has 60 years of professional expertise to back its products, work ethics, and designs.

The company specializes in custom transformers and other power and electric devices.

With that in mind, the company has an estimated $2.74 million in annual sales.

Lenco Electronics

Founded in 1973, Lenco Electronics, Inc. now has annual sales of $7 million.

The company, based in Illinois, believes that clients should have complete faith in the product quality and production process.

Like any other power transformer manufacturers in the USA, the company offers three-phase transformers and custom transformers.


One of the large power transformer manufacturers based in California. ROMAC Industries has an estimated annual revenue of $87 million.

It was founded in 1958 and has since supplied Americans with low voltage, dry type, and compartmental transformers.


Torelco belongs to the large power transformer manufacturers list and has over $5 Million in annual sales.

The company has over 55 years of experience in custom and standard but other toroidal and bobbin items.

Glen Magnetics, Inc

Established in 1973, it has an estimated annual sales of $2.25 million.

One of the prolific power transformer manufacturers, its main idea is “nothing is off the shelf.” The company is located in Alpha, New Jersey.

Where Are ABB Transformers Manufactured?

ABB is one of the power transformer manufacturers in Europe and has different manufacturing sites globally.

Its manufacturing sites include St. Louis, Missouri, Lodz, Poland, India, China, and South Africa.

What Is Transformer Made Of?

There are different materials used in the construction of a power transformer.

The core is made from cold-rolled grain-oriented (CRGO) silicon steel.

On the other hand, the tank or the core’s container is made from carbon steel.

The primary and secondary windings are all made from copper wires.

Difference Between Power Transformer And Distribution Transformer?

A distribution transformer is mainly used for distribution purposes. With that said, there are different points where it differs from the power transformer. First, power transformers are used in transmission networks with much greater voltages. While the other is used in distribution networks with lower voltages.

Second, power transformers are widely used at full load since they are designed to be highly efficient at 100%. On the other hand, a distribution transformer has a good efficiency when the load is between 50% and 70%.

Lastly, both are available in various ratings. However, power transformers have higher ones which include 400kV, 200kV, 66kV, and 33kV. Distribution transformers have ratings of 11kV, 6.6kV, 3.3kV, 440v, and 230 volts.

Power transformers are an amazing feat of technology, and there are various manufacturers around the world. Additionally, Power transformer manufacturers are one of the backbones of today’s electrical power industry. Without them, it could set back a company anywhere from $500,000 to $5 million for a single hour of manufacturing downtime.

So it’s essential to have a power transformer handy. If you are looking for one, be sure to check out Daelim.

At DAELIM, we make sure that our products are safe and work in accordance with regulations and follow global safety standards.

We have a mandatory quality system at all levels to ensure a level playing field for our customers.

About Bin Dong

Hello, I am Bin, General manager of Daelim which is a leading transformer manufacturer. If you have problems when you are looking for the equipment, what you need to do is tell us.

Custom Pad Mounted Transformer

When you need to find more than just existing transformers, Daelim’s Transformer Service Center can help you design and produce distribution transformers that meet your unique needs.

We have our own factory and a professional team of engineers, which can design and modify application requirements that meet all your conditions.

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