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Crane power supply is synonymous of robustness and reliability, requiring in-depth mechanical and electrical studies. Additionally, this application often operates in harsh environmental conditions that must be carefully considered.

When it comes to outdoor transformers used in tower crane power supply, several technical challenges must be addressed to ensure optimal performance and longevity. These issues include handling overload cycles, minimizing energy losses, and managing high levels of harmonics.

: Cranes often operate under varying loads, causing frequent overload cycles. The transformer in this application must handle these fluctuations without compromising its performance or longevity.

: Efficiency is critical in crane operations to reduce energy consumption and operational costs. Transformers with low losses ensure that more energy is effectively used for the crane's operations rather than being dissipated as heat.

: Cranes' electrical systems can create significant harmonic distortions, affecting transformer performance and lifespan. Managing these harmonics is essential for maintaining the integrity and reliability of the transformer.

Given these challenges, Dry Type transformers are an ideal solution for tower crane power supply. Some of the benefits of this environmental-friendly technology are:

: Dry Type transformers are known for their robustness and low maintenance needs. This is especially beneficial for crane operations, where maintenance downtime can lead to significant delays and costs. Furthermore, their design reduces risks, ensuring continuous and reliable operations.

: Dry Type transformers can be tailored to meet specific customer standards and environment requirements. This customization ensures that the transformer meets the technical specifications and smoothly integrates into the existing crane systems.

: outdoor transformers are well-suited for harsh environments. Thanks to advanced enclosures, they can withstand dust, moisture, water and other challenging conditions, ensuring the transformer’s endurance.

When it comes to tower crane power supply, TMC Transformers leads the field. With more than 30 years of experience and strong engineering expertise, TMC provides exceptional solutions designed specifically for crane operations.

: TMC has developed a profound understanding of the complexities involved in transformer design and application.

: TMC excels in delivering custom mechanical projects, including specialized protection enclosures that safeguard transformers from dust and water. This attention to detail ensures that the transformer operates even in the harshest conditions.

: TMC's expertise lies in adapting transformers to accommodate various accessories, such as disconnectors and MV switchgear. These enhancements boost the transformers' functionality and adaptability, enabling them to meet a broad spectrum of operational demands.

: For comprehensive needs, TMC offers turnkey solutions, extending its portfolio up to complete MV substation solutions. This all-inclusive approach ensures that clients receive a fully integrated system designed to meet their needs.

Dry Type transformers are essential for crane operations because they're secure, easy to maintain, and can withstand tough conditions. TMC Transformers, with its vast experience and engineering skills, offers tailored, top-notch solutions that guarantee the best performance for crane operations. Choose TMC as your partner for excellence that understands your requirements in every step of your operations.

Crane power supply: The Essential Role of Dry Type Transformers

Dry type transformers are experiencing a positive market trend, with new applications growing and demanding this technology.
As a green technology, dry type transformers, especially those utilizing a cast-resin coil design, are much more ecologically friendly than their liquid-filled counterparts. Cast-resin coil transformers are also very robust, standing up well in harsh environments which enables them to be utilized in outdoor applications typically served by liquid-filled solutions in the past.

Unlike liquid-filled transformers, dry-type units do not use hazardous substances. In fact, due to their non-flammable nature, they can be widely used in applications in restricted spaces or areas with a substantial risk of fire hazards, such as underground tunnels, mines, chemical plants, offshore platforms, and densely populated urban centers. Furthermore, in line with the green transition, several markets are paying more attention to the efficiency of the product with low losses, leading to CO2 emission reductions .

In the United States, the dry type transformer market has witnessed significant growth in recent years, driven by several market factors, including exponential growth in the data center market and IT infrastructure, electric vehicle charging equipment (EVCE) infrastructure, the electrification of major rail lines, and the strong push toward renewable and sustainable energy sources utilizing Battery Energy Storage Solutions (BESS).


Active in the dry-type transformer market, TMC Transformers USA was born in 2022 from the expertise of TMC
Transformers SpA: a European company with global presence and many decades of experience, specialized in the design and manufacturing of medium and low voltage innovative transformers suitable for distribution and many other applications. These tailor-made solutions differentiate themselves from the more traditional liquid immersed type, because of constructive, operative, and maintenance key features.


TMC’s success in the market to-date has far exceeded expectations prompting the organization to open a US-based headquarters and manufacturing facility in Waynesboro, GA in 2023. This milestone demonstrates TMC’s commitment to the US market by directly investing assets to strategically build an infrastructure to serve it along with all of North America, and its commercial reach and partnerships will be a key contributor in the ever-expanding “World of Transformers”.

The USA Dry-Type Transformers market

What’s the situation that characterizes the transformers market at present and for future years?

The transformers market is experiencing a favorable trend with numerous opportunities emerging. This trajectory is being driven by post-COVID investment across diverse applications, together with the initiative for new electrical infrastructures to facilitate the green transition. The adoption of more sustainable solutions that utilize dry transformer technology is gaining market share and finding applications in innovative sectors.

Additionally, in recent months, there has been a significant stabilization in the trend of raw material costs. Speculative fever that dominated 2021 and 2022 has subsided to more reasonable levels, fostering a more stable environment conducive to long-term project investment.

How TMC is positioned today against this backdrop? Where are TMC investing?

TMC stands as a leading player in the global transformer market, strategically positioning its products across all sectors that utilize dry transformers. Offering a range of technical solutions tailored to various applications, we constantly invest in R&D to explore innovative cooling systems, enhanced protections and advanced materials. Concurrently, significant steps have been made in expanding our production capabilities through the establishment of new facilities, coupled with the acquisition of state-of-the-art machinery. This expansion mirrors the substantial growth trajectory experienced by the TMC group, since its acquisition by H&F in 2017.

What’s the most complex challenge TMC is facing and how will they overcome it?

TMC faces its greatest challenge in managing tailored and special products and in relation to our strong position in this market, numerous customers express interest in collaborating with us.

However, the production of complex solutions for various special projects demands expertise and clear technical comprehension of end-user requirements, from both TMC and our customers as well as robust project management support from TMC. Consequently, to address these demanding customer needs, we have made significant investments in recruiting and training new personnel in engineering, implementing lean processes, automating our working tools, and bolstering project management across all areas.

What’s the most growing sector in Europe? And in USA? And in APAC?

Several applications are experiencing positive trends, largely driven by the need for new electrical infrastructure to support global growth and facilitate the transition towards a more sustainable economy. Significant investments are being made in hydrogen production, battery storage, and e-mobility, alongside the continuous expansion of renewable energy sources.

The data center market is also witnessing development, boosted by the surge in social media usage, the integration of artificial intelligence and the increasing reliance on cloud-based applications.

Additionally, in regions such as North America, the shortage of oil transformers is catalyzing market growth for dry technology in outdoor solutions.

How TMC is proceeding with the path towards the green economy?

TMC's dedication to optimizing production processes for waste and emission reduction (Eg.: through the Zero Carbon Project of Schneider Electric) involves several key objectives in process engineering.

Among these goals is the aim to produce transformers utilizing recyclable or recycled materials. We are currently engaged in defining the Life Cycle Assessment and EPD certification for our transformers, used as green passports to validate our environmental commitment.

Furthermore, our efforts to reduce and recover waste, with 90% of waste materials, including mixed waste, wood packaging, and plastics, being recovered by third-party entities.

Additionally, we are exploring chemical processes to recover the resins utilized in our production processes.

We also work tirelessly to ensure that our partners embrace our code of ethics and adhere to EU directives, ensuring products and solutions comply with regulations while verifying their origins. All of our products adhere to European regulations concerning the restriction of hazardous substances and comply with the European Chemicals Agency's SVHC candidate list.

TMC remains persistent in its investment strategy aimed at expanding its presence in the low and medium voltage transformers market. Our efforts include the acquisition of new buildings to increase capacity and the investment in state-of-the-art machinery.

Last year, we established a manufacturing facility in the United States and an assembly workshop in Israel, aligning with our objective of localized presence in key markets. Furthermore, we inaugurated an office in Singapore to better serve customers in Southeast Asia.

Looking ahead, TMC's vision encompasses maintaining technological leadership in dry transformer products while ensuring global reach to cater to primary markets beyond Europe. This involves establishing local footholds to offer enhanced customer proximity throughout the design, production, and after-sales service phases.

Hannover Messe Interview 2024

Traction transformers are essential for electric railway systems, including 

high-speed trains, conventional trains, light rails, metros, and trams

, they help convert grid voltage into the voltage that trains need to run while minimizing wastage during transmission.

Electric railway systems usually feature traction substations, and transformers in substations must convert 

 to a form suitable for powering a rail system through overhead lines or third rails. The best transformers for this industry must 

 during operation while maintaining high performance and safety.

The design of traction transformers must consider such needs while ensuring minimal maintenance requirements and high reliability, and that is where dry-type transformers come in!

Read on to know why a dry-type transformer is well suited for railways applications.

Benefits of Dry-Type Transformers for Railway Traction

Dry-type transformers have various features that make them excellent for railway traction applications, including:

Dry-type transformers are designed according to industry standards to ensure the safety of train operators, passengers, and maintenance personnel. They are completely 

, so you do not have to worry about fires igniting in case of accidents or faults. 

Both mechanical and electrical parts are short-circuit tested and validated through rigorous criteria like finite element analysis (FEA)

 regardless of environment or condition. They feature different types of protection to ensure they remain functional and last for a long time, even in 

 and applications. The last thing a railway system needs is stoppages or halts due to breakdowns, but you can rest easy when you install dry-type transformers as traction transformers outdoors, in pressurized substations or tunnels.

A dry-type traction transformer can make the railway system 

. They are highly efficient to ensure great energy savings corresponding to reduced carbon emissions. They also feature solutions like 

 instead of oil solutions for further reductions in emissions and losses.

, which can help reduce downtime and the total cost of operating train systems. They are suitably protected from atmospheric agents and harsh conditions, so you can be safe and secure about maintenance stoppages for trains or transformers in substations situated in very low temperatures or highly polluted areas.

TMC Transformers USA Inc.: Leaders in Dry Type Transformers for Railway Traction

TMC supplies a broad array of dry type transformers for 

fixed rail traction electrical substations

medium voltage distribution transformers for auxiliary services

It has over 30 years of experience in manufacturing and designing dry-type transformers according to all international standards like 

high-quality, safe, reliable, eco-friendly, and low-maintenance

 dry type transformers for railway traction applications, compliant with applicable standards and designed according to your requirements and technical specifications.

Traction Transformers to boost Railway Performance 

Renewable energy sources for power generation can pave the way for a 

Sustainability, environmental protection, emission-free processes are critical decision factors in power generation today, and sustainable transformers can play a crucial role in achieving them.

Dry Type Transformers from TMC Transformers

TMC Transformers supports sustainable power generation from renewable energy by providing a broad portfolio of 

. Transformers are vital in power generation and are widely used in 

TMC Transformers offers sustainable transformers that allow efficient, reliable, continuous, and emission-free operations.

Dry type transformers are sustainable transformers that use 

 medium instead of relying on oil or other liquids in the cooling system. They use natural or forced air ventilation for cooling, making them more beneficial than liquid-filled units.

How Do Dry Type Transformers Ensure Sustainability

Energy must be efficiently collected and distributed to be sustainable, and dry-type transformers guarantee high reliability regardless of environment or condition, with the 

. Transformers operate by the principle of 

 in power generation. TMC Transformers features an in-house 

 (FEA) facility that allows studying complex electromagnetic circuits, thermal and structural performance to ensure the finished product meets the required levels of reliability and efficiency.

 in operations or manufacture, making them a far 

 than oil transformers. They also feature increased efficiency, which translates to high energy savings and reduced emissions. Dry-type transformers feature 

 and use solutions like natural air cooling instead of oil solutions, guaranteeing low emissions and losses.

TMC sustainable transformers are protected from harsh conditions and atmospheric agents 

 and flexible for use in extreme environments.

We’re referring to highly polluted areas and high climate class for transport, storage, and operation at very low temperatures (down to -50° for operation and -60° for storage and transport), and as well as resistance to fire hazards.

outdoor auxiliary sustainable transformers

, TMC Transformers has you covered! It features a team with over 30 years of experience designing and manufacturing dry-type transformers that meet applicable standards, technical specifications and customer needs. Check them out today to discover how sustainable transformers can help you achieve sustainable power generation.

Powergen Renewable Energy Sustainability

 with a longstanding commitment to designing and building quality and correct transformers for the mining industry. Thanks to over thirty years of transformer experience, TMC transformers are designed in compliance with applicable standards, technical specifications and customer requirements.

The Mining Transformers Industry & The Relevancy of TMC Transformers at a Glance

Highly reliable mining transformers are essential for the mining industry to guarantee production and prevent profit losses. The transformers mining industry needs mechanically and electronically robust equipment to withstand 

 like high and low temperatures and dust. The last thing you want is outages or breakdowns during extraction or processing, and with TMC mining transformers, you can rest easy whether you’re mining in the middle of the desert or in snowy and cold areas.

Features of TMC Mining Transformers – Compliance & Innovation Are at Our Core!

An Impressive Foray of Full Certifications

TMC transformers are designed according to all international transformers mining industry standards, including 

. Both mechanical and electrical parts are short-circuit tested and validated through rigorous criteria like finite element analysis (

 mining transformers. Dry type transformers are a green technology that is recyclable and highly efficient to ensure high energy savings corresponding to 

. Eco-friendly solutions like heat exchanger solutions and natural air cooling instead of oil solutions provide low emissions and losses.

TMC mining transformers can reach different levels of protection, including totally enclosed solutions from IP00 to IP68, ensuring protection from total dust ingress. You’re guaranteed high reliability in all kinds of challenging environments and applications. Thanks to different types of protection, you can install the mining transformers directly outdoors, in mine tunnels or pressurized substations.

TMC mining transformers are suitably protected from harsh conditions and atmospheric agents, making them maintenance-free and flexible for use in extreme environments. You don’t have to worry about maintenance stoppages during mining operations, whether in highly polluted areas or very low temperatures.

 from TMC are ideal for all kinds of applications worldwide, whether you’re mining metallic ores, diamonds, coal or oil.

Check out the TMC extensive portfolio for 

 and maintenance-free transformers that adhere to standards in the transformers mining industry that can be customized to your needs and requirements.

Transformers perfectly suited for Mining extreme environmental conditions

 the Andrea Ghidini's interview about how TMC is facing the transformer market evolution and its challenges during the last years. 📈

What’s the situation that characterises the transformers market after the pandemic?

After the end of the Covid restriction, we started to see two main factors that have characterized the market. The first was the increase in volume requested and the second was related to the increase of the cost of raw materials, together with a longer lead time. Initially we considered this to be a reaction to the reduction in global activity due to Covid, but we continued to see a significant upturn in orders and growth continued over many months that followed.

How is TMC positioned? Where is TMC investing?

It all started five years ago, when TMC invested heavily in the dry transformer business. We saw continuous growth as a result, even during Covid time we managed to retain all employees, which helped give TMC the platform to continue the journey and grow the business. In order to maintain sustainable growth, we have always tried to anticipate the market, although what happened after Covid was not easy to predict. Our investment continued with the purchase of new winding machines, new facilities, special tools for production and the latest software to improve design and production processes. In addition to this, TMC have and continue to invest heavily in bringing new people on board across all functions of the business. This will enable us to increase capacity in the medium and long term. But we didn’t stop there! We’ve expanded our global presence by opening new facilities in both the USA & Israel.

What’s the most complex challenge you’re facing? How will you overcome it?

The most challenging aspect, first and foremost, is to 

. More recently, the signs are that the availability of material has increased, although lead times remain long. Over that past few months, we have learnt how to manage our supply chain more effectively, thus improving the management of longer lead time projects, mitigating the risk linked to cost variations. We also encountered challenges relating to the availability of skilled people that we need to continue our growth plans. In many ways we are fortunate to be based in a region where we can find experienced people, on the other hand we have worked hard in to retain our employees by investing heavily in Human Resources.

Which sector is seeing the most growth, both in Europe & the USA?

Overall, the economy has a positive trend, with most applications requiring dry type transformers demanding more investments. The need of a green transition is creating more & more new opportunities for 

hat are linked to new technologies such as

 Hydrogen production, electrical chargers and battery storage

. Global digitalization is creating a need for new 

 is driving investment in renewable energy generation, together with new and more-efficient distribution infrastructures.

Following a period of considerable investment in R&D, we are now delivering products for traditional renewables, such as wind and solar. TMC have also developed innovative solutions that support hydrogen production, improving our products continuously in order to position ourselves as a reliable supplier to our customers that supports demanding applications where dry transformers play a fundamental role. These technological advances mean that TMC’s dry type transformer offer is a very credible alternative to traditional, liquid-filled assets.

When it comes to our internal approach to 

, we’ve invested in processes that enable us to 

 on the roof of our main production site, which has a capacity to generate more than 1 GWh/year. Other initiatives include the 

 that we produce in many operations and the installation of more efficient tools to reduce consumption. 

TMC’s success in the market to-date has far exceeded our expectations. The positive return that we’ve seen, both in 

, is a direct result of and driven by the competence of our people and the quality of TMC products. The original plan was to enter the market and try to meet the needs of our customers, providing 

competence, flexibility, reactivity and proximity to the market

. To implement this, we managed to hire a team of people with many years of industry experience in all strategic functions, including Sales, Engineering, Production and Quality. We then reinforced other key functions, such as marketing and IT, with highly skilled people that complemented and added value to the team. So, 

the human capital is the for sure the main driving factor of our growth.

Our achievements to date have put TMC in a very strong position, which will help us realize our future plans. Our growth is not only linked to market expansion, but also to high penetration of the customer base. We’ve created a strong network of agents and distributors across the globe and the return we are having is based on solid relationships with our customers. We are positioning our products and overall offering into new applications and solutions, differentiating in numerous areas and, therefore, operating independently from the economic cycle. TMC work tirelessly to mitigate risk and take advantage of these positive trends. We will continue to develop our global footprint, expanding into developing regions.

An expert Q&A with the TMC Group Marketing & Sales Manager 

Leader in the manufacture of medium and low voltage dry-type transformers and reactors, TMC Transformers is a dynamic European company with a global reach. The company designs and produces a wide range of innovative solutions, using the latest advances in cast resin and VPI technologies to optimise performance and cater all needs.

All products and services are available in standard ranges and tailor-made versions, perfect for both 

. These two aspects together allow TMC to offer customers around the world the best service they possibly need.

Among the different possibilities of applications such as industry, building and infrastructures, traction substations, marine and offshore, oil and gas, renewable energy, battery storage and mining, the company is 

highly specialised on dry-type transformers for data centers

Data Centers may vary according to their use and application, but they surely represent an essential asset for businesses. Especially in today’s world, where millions of devices are connected to the internet worldwide and information runs at lightning speed. Massive flows of data are stored and controlled daily and we will keep storing more and more data in the future. 

Within this scenario, TMC strives for greater efficiency and offers reliable solutions that can provide opportunities for mutual business growth and expansion.

‘In today’s world, where information systems represent an essential tool for any business, data centers have become the key to phenomenal growth.’

TMC Transformers offers all its knowledge, expertise, and experienced engineers to help data centers operators work more efficiently. Whatever need you may have, it can be overcome with our extensive range of MV and LV dry-type transformers for data centers use, complying with technical specifications and applicable standards.

Data Centers applications for different needs

Data centers are highly demanding applications that require specific characteristics. There are indeed many crucial factors to consider in order to cope with the challenges of such a demanding power system. 

Load characteristics (non-linear loads with high harmonic content), transient voltages (frequent switching), lack of space, noise control and management of leakage currents are just some essential aspects to take into account.

What TMC ensures is increased safety, functionality and reliability with different solutions that can be customised to meet customer demands. 

highly-robust, environmentally sustainable

 (the transformer guarantees performance to -60°C storage and -50°C ambient temperatures) 

 (the emission of toxic substances and opaque smokes shall be minimised).

Advanced noise/vibration and surge suppression.

TMC Technology for data centers: the key to phenomenal growth

 is extremely broad and diverse, while focusing mainly on specific and highly specialized applications that demand 

While the design and manufacture of standard distribution transformers is straightforward and often perceived as a commodity in the marketplace, a totally different approach must be taken when specifying transformers for critical applications, particularly harmonic loads (power conversion, rectifier duty, excitation applications, etc.).

These demanding applications, often in safety-critical and harsh environments, require 

transformers that are carefully and competently engineered

. The actual thermal overloads must be considered to allow for optimum performance when connected to loads that are subjected to harmonic distortion or with continuous and or temporary overloads.

 by trusted partners with a high degree of competence and experience in this field.

using highly advanced software to accurately process and simulate physical effects within the equipment, providing customers with a fully-optimized and robust solution that eliminates premature transformer failures.

From small power/LV up to power ratings of 

Our innovation, experience and advanced technology allow us to offer the following benefits:

tailored to suit specific customer requirements

The combination of FEA simulations and our advanced skills and experience results in a fully optimized solution that 

prevents premature degradation within the insulation system

under arduous operating and environmental conditions

 while operating in systems with high harmonic content, managing overheating problems or insulation degradation.

Operating in a competitive environment, TMC Transformers aims to stand out from the others, approaching each proposal and design with 

proactive engineering research and advanced technology

, allowing us to meet customer demands for innovation, reliability, and product safety.

steel production, paper mills, cement plants, water treatment pumping stations.

track side supply main line, metros, trams.

Dry Type Multipulse Transformers – VSD & Rectifier Loads

to meet standard requirements yet also match specific requests, 

Founded in 2017 following the acquisition of preexisting know-how, TMC gained in prominence on the market in just a few years due to its expertise and ability to meet customer needs, especially in very specific industries such as

Our solid team of about 250 experts are committed to innovation and quality (most are employed at our Italian headquarters in Busto Arsizio).

when answering customer requests are two unique features of this young company, which is appreciated for expertise that makes it competitive with major established companies. The numbers are also proof of our customer satisfaction: since 2017, turnover has grown exponentially, even during the pandemic.

Today’s transformer market is focused on two primary requests: 

“These two characteristics cannot be overlooked,” explains 

, an engineer in the TMC technical department and an expert since 2004 in multiphysics simulations with finite elements.

“Then there are those industries with specific requests and needs that require specific raw materials or transformers optimized for custom parameters such as circuits and geometry.”

This is the difference of TMC: offering highly customized applications. “We develop nonstandard solutions with high levels of personalization. For example, transformers with one primary winding and 27 secondaries, solutions with a 52-kV voltage class and highly strict phase shift angles. Alternatively, for new applications, we offer clients innovative solutions in terms of materials and structures.”

Simulations, an essential tool for designing quality

Given the above, it is clear why simulations are an essential element in transformer design. The more complex an object is or the more it deviates from standard construction, the more important it is to simulate its

according to the required conditions. Since transformers are subject to physics in the real world, 

multiphysics simulations are perfect for approaching the actual operating conditions.

In particular, which physical forces should be considered?

“Transformers are often perceived as machines in which the fundamental physics are electromagnetic. This is true, but transformers are extremely complex machines in which more interconnected physics operate,” Iovieno explains.

For example, electricity moving through the windings causes the machine to heat up, and it is essential for a good design that the 

across the various parts of the transformer (i.e. core and windings). It is also necessary to know how these parts react to temperature increases.


Although transformers do not contain moving parts, mechanical and structural analysis is necessary to ensure the

of the windings in case of short circuits.

Closer to reality with finite element multiphysics analysis

The most advanced multiphysics simulations

As Iovieno explains, the simulation creates a “mesh” for each component and geometry, discretizing the component in question.

“In this step, under precise instructions from the operator, the software divides the component into many subsets and the differential equations that describe the physics in question are applied to each. In the case of electromagnetism, for example, Maxwell’s equations, which constitute the fundamental rules that govern electromagnetic interactions, are applied to each discrete element. Finite element simulations provide an extremely precise analysis of the component and define the gradients of each type of physics considered.”


For transformers, the most common properties investigated using multiphysics analysis are

The added value of multiphysics simulations

In developing TMC products, multiphysics analysis is involved right from the offer, which determines the technical specifications requested by the customer. Therefore, right at the beginning, it is possible to understand if the suggested geometries are the most suitable and they need to be optimized.