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This section provides an overview for amorphous transformers as well as their applications and principles. Also, please take a look at the list of 13 amorphous transformer manufacturers and their company rankings. Here are the top-ranked amorphous transformer companies as of May, 2025: 1.ABB E-mobility, 2.RISHO KOGYO CO., LTD., 3.TRAFO ELETTRO SRL.
Table of Contents
An amorphous transformer is a transformer that uses an amorphous alloy in the internal structure, mainly for voltage conversion of electric power.
A transformer is a device that converts high-voltage power from power plants. It changes this power into usable voltage values for homes, factories, buildings, and other businesses.
In silicon steel plates normally used in transformers, the atoms are arranged in a regular structure. In contrast, amorphous alloys have a random atomic structure. This structure gives amorphous alloys the advantage of high strength, soft magnetic properties, and corrosion resistance.
Like ordinary transformers, amorphous transformers are used to convert the voltage values of high-voltage power produced at power plants and substations for use in homes, apartments, buildings, factories, and other business establishments.
Ordinary transformers generally use silicon steel plates for their cores, which results in standby power losses and energy dissipation. These standby power losses are extremely burdensome and are not environmentally friendly.
In contrast, amorphous transformers minimize energy consumption loss and significantly reduce standby power by taking advantage of the properties of the alloy. However, the disadvantage is that the size of the transformer is larger and heavier than conventional transformers. Also, the mechanical noise is louder than conventional transformers.
The principle of the amorphous transformer involves using an amorphous alloy in the inductor (Coil), which corresponds to the iron core in ordinary transformers. This improves electron mobility and reduces power loss, particularly standby power. In a transformer, the voltage is adjusted by the ratio of the number of turns of the coils inside the transformer to the current that flows through it. The voltage value is raised or lowered depending on the ratio of the number of turns of the coils on the primary and secondary sides inside the transformer.
The higher the number of coil turns, the higher the voltage, and conversely, the lower the voltage. Power plants and substations supply electricity with high-voltage AC power because it is necessary to reduce transmission losses in the wire cables as much as possible.
The transformer, which ultimately converts the AC voltage values of 100V/200V in ordinary homes and offices, is an indispensable piece of equipment for electric utilities. The presence of these transformers allows us to safely use electricity in our daily lives.
Although amorphous transformers are highly effective in reducing standby power when there is no load, it is also necessary to pay attention to their load loss reduction rate when the load is large. In general, amorphous transformers are characterized by load losses that vary little with the state of the load (i.e., the rate at which power is used).
This means that a very large power-saving effect can be obtained in low-load equipment with long standby time, but the power-saving effect is reduced in high-load equipment that is always in operation. Therefore, it is necessary to understand the power load status of transformer equipment installation.
For example, in emergency power generation facilities and solar power substation applications, the average power load condition is small, so a very high power saving effect can be expected.
Compared to transformers made of ordinary silicon steel sheets, amorphous transformers require 1.5 to 2 times the volume due to limitations in the physical properties of the alloy. As this affects the transformer's weight, ensure the installation site's structural floor load limit is not exceeded. For example, an oil-filled transformer may have a mass of about 3,000 kg, depending on the thing.
*Including some distributors, etc.
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RISHO KOGYO CO. LTD. is a Japanese manufacturer of electronic materials and cast resin products founded in 1921 and based in Kita-ku, Osaka. The company produces various electronic materials, insulating materials, and epoxy cast resin devices. Its products include epoxy tape for smart card terminals, cast resin phase advanced capacitors, and thermosetting resin laminated tubes/rods. The company primarily serves clients in the energy distribution, civil engineering, and offshore sectors. It offers additional services such as R&D, environmental management, and customer support.
Transcon was established in 2003 and is based in Hyderbad, Telangana, as a manufacturer of energy-efficient tools. The company is the first industry to get certified with the stringent BEE 5 star rating. The company's product portfolio includes distribution transformers, power transformers, special designed transformers, lightning arrestors as well as servo controlled voltage stabilizers. The company also produces 33 kV voltage class and 25KVA distribution transformers while investing in an in-house engineering and R&D.
Hitachi, Ltd was established in 2002 and headquartered in Chiyoda-ku, Tokyo is a manufacturer of industrial electrical equipment and system solutions. The company offers an extensive and diversified product portfolio including industrial drive systems, power electronics, energy-related equipment, power distribution systems, and various other industrial solutions. These products serve as integral components that drive advancements in industrial capabilities across diverse sectors by playing a pivotal role in promoting energy conservation and storage, automating robot systems in large factories, enabling smarter manufacturing through digital solutions, and facilitating efficient transportation within industrial facilities.
ABB E-mobility provides electric vehicle charging solutions for customers around the globe. ABB E-mobility offers DC fast chargers as well as AC chargers with focus on reliability and uptime. Since 2010, ABB E-mobility has sold over 50,000 DC fast chargers and over 1 million total AC chargers. ABB E-mobility offers home single and multi-charge units, retail, workplace, and hospitality charge units, electric vehicle fleet sales, as well as public transportation. Additionally, numerous digital solutions and software services are available.
Ranking as of May 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | ABB E-mobility |
16.9%
|
| 2 | RISHO KOGYO CO., LTD. |
13.7%
|
| 3 | TRAFO ELETTRO SRL |
11.5%
|
| 4 | Transcon |
9.0%
|
| 5 | Kyte Powertech |
7.2%
|
| 6 | Hitachi, Ltd. |
7.2%
|
| 7 | Hitachi Nico Transmission Co.,Ltd. |
6.1%
|
| 8 | MBT |
5.8%
|
| 9 | Rajasthan Powergen Transformer Pvt. Ltd. |
5.4%
|
| 10 | PT. Bambang Djaja |
5.4%
|
Derivation Method
The ranking is calculated based on the click share within the amorphous transformer page as of May 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
3 | 25.0% |
|
India
|
3 | 25.0% |
|
China
|
2 | 16.7% |
|
Italy
|
1 | 8.3% |
|
Ireland
|
1 | 8.3% |
|
Indonesia
|
1 | 8.3% |
Vietnam
|
1 | 8.3% |
115 products found
115 products
NC Automation Co., Ltd.
240+ people viewing
■Please replace the product as soon as possible due to its lifespan. The expected lifespan is generally assumed to be about 30 years, but after abo...
Daido Japan Co., Ltd.
860+ people viewing
Last viewed: 16 hours ago
■Amorphous power distribution transformer "Amorphous transformer using natural ester oil (FR3)" won the Taiwan Excellence Award. History/history ■...
8 models listed
Daido Japan Co., Ltd.
1220+ people viewing
Last viewed: 12 minutes ago
■Amorphous power distribution transformer "Amorphous transformer using natural ester oil (FR3)" won the Taiwan Excellence Award. History/history ■...
10 models listed
Daido Japan Co., Ltd.
770+ people viewing
Last viewed: 2 hours ago
■Amorphous power distribution transformer "Amorphous transformer using natural ester oil (FR3)" won the Taiwan Excellence Award. History/history ■...
8 models listed
Daido Japan Co., Ltd.
1270+ people viewing
Last viewed: 54 minutes ago
■Amorphous power distribution transformer "Amorphous transformer using natural ester oil (FR3)" won the Taiwan Excellence Award. History/history ■...
10 models listed
Ozeki Co., Ltd.
60+ people viewing
Last viewed: 1 day ago
Amorphous core is a material with a thickness of 20 to 30 μm that suppresses eddy currents and achieves low iron loss. We provide C-shaped cut core...
Eagle Rise Japan Co., Ltd.
310+ people viewing
■Summary High efficiency amorphous specification available
Ipec Co., Ltd.
90+ people viewing
Last viewed: 1 hour ago
Achieved approximately 1/2 the volume compared to the conventional structure. The device can be made smaller and lighter. Since losses are small, i...
