Elprom Heavy Industries Co.Bulgaria

Elprom Heavy Industries Co.Bulgaria Contact information, map and directions, contact form, opening hours, services, ratings, photos, videos and announcements from Elprom Heavy Industries Co.Bulgaria, Commercial & Industrial, 41, Rojen Boulevard Sofia, Bulgaria, 1000, BG, Sofia.

Елпром Хеви Индъстрис АД е световно утвърден лидер в разработката и производството на силови трансформатори и стъпални регулатори.
Заводът е основан през 1949 г. в гр. София под името „Васил Коларов”. През 1997 г. корейският гигант Hyundai Heavy Industries Co. приватизира българското дружество, а името му е променено на Хюндай Елпром Трафо АД. Няколко години по-късно, предприятието става разпознав

аемо на пазара като Хюндай Хеви Индъстрис Ко. България. В началото на 2020 г. фабриката за производство на Hyundai в София стана член на BEZ International Group, един от основните производители в областта на Трансформатори в Централна Европа.
От 01.08.2021 г. компанията промени името си на Елпром Хеви Индъстрис АД.
Новото име на компанията отразява богатата история на Елпром и повече от 70 годишния ни опит в енергетиката. Визията, на която залагаме сега е да бъдем предпочитаният бранд в енергийния сектор. Смятаме, че техническите изисквания ще се повишат, затова организираме научноизследователска и развойна дейност и ще инвестираме в най-доброто оборудване.
На фокус е и инвестирането в хората, чрез предоставяне на подходящи възможности за развитие на всички служители и осигуряване на адекватни програми за обучение, които да изграждат необходимите професионални и ръководни умения, защото хората са ценни за нас.
МИСИЯТА ни е да сме надежден партньор за нашите клиенти, като предлагаме инженерни решения и висококачествени продукти, да си сътрудничим с нашите клиенти, за да се адаптираме успешно към постоянно променящия се свят.
Развивайки успешно производствената си дейност, продажбите и завоювайки нови пазари, българската фирма си създава репутация на изключително надежден, стабилен и конкурентоспособен доставчик на силови трансформатори и апарати с високо напрежение както за енергийната система в България, така и за нуждите на чуждестранни клиенти – електрически подстанции, класическите ВЕЦ, ТЕЦ, ВЕИ, промишлени предприятия и др., от Европа, Азия, Африка и Америка.
Производствената програма на предприятието включва:
- Трифазни силови трансформатори;
- Генераторни силови трансформатори;
- Монофазни силови трансформатори;
- Aвтотрансформатори;
- Пещни трансформатори;
- Фазо изместващи трансформатори;
- Мобилни трансформатори; с
- Стъпални регулатори;
- Превключватели без възбуждане;
- Задвижвания.

Елпром Хеви Индъстрис разполага с екип от доказани, опитни и висококвалифицирани специалисти, който с годините е създал динамична система за изпълнение на многообразни практически задачи в процеса на проектиране и производство на изделията. Контролът на качеството се извършва съгласно внедрена Система за управление на качеството по ISO 9001:2015 и Наръчник по качеството. Всички тестове и изпитвания на трансформаторите и стъпалните регулатори се осъществяват в сертифицирани изпитателни лаборатории на завода.

New year, new website 🌐 Faster, clearer, optimized - our new digital home is highlighting our engineering heritage, manu...
06/01/2026

New year, new website 🌐

Faster, clearer, optimized - our new digital home is highlighting our engineering heritage, manufacturing strength, and commitment to reliable power solutions worldwide ⚡

Check it out here 👇

Transforming the world for a better future. Together. Watch video Years of experience About us Trusted global provider At the heart of our operations is a commitment to delivering superior products through cutting-edge technology and innovative processes. Elprom Heavy Industries has a proven reliabi...

10/11/2025

The story continues 🎞️

Two power transformers - 140 MVA⚡330 kV, were successfully transported internationally to Latvia to the installation site.

⚙️ This is why our customers trust us not only for designing and producing their transformers but also for their transport.

Depending on the destination and project needs, we at Elprom Heavy Industries arrange reliable, customized delivery solutions - by road, rail, or sea - ensuring your transformer arrives safely and on time. 🚛

Stay tuned to hear the rest of the story 👍

30/10/2025

🎥 New video‼️Volume up 🔊

Energy⚡Power⚡Elprom Heavy Industries⚡

⚙️ Legacy, technical excellence, power, and reliability.

For over 75 years, Elprom Heavy Industries has been a trusted provider of power transformers - enabling energy systems and industries around the world.

⚡ Watch the video and discover what drives us.

👍 Follow us for more.

Addressing your critical on-time delivery needs: How Our Manufacturing Upgrades Are Getting OLTC to You Faster🚀In today'...
23/08/2024

Addressing your critical on-time delivery needs: How Our Manufacturing Upgrades Are Getting OLTC to You Faster🚀

In today's rapidly evolving energy landscape, on-time delivery of power transformers has become very crucial. On-Load Tap changers (OLTCs) stand among the most critical components of power transformer that play a pivotal role in ensuring the efficient regulation of voltage levels⚡️. The ability to deliver tap-changers to the transformer manufacturer on time with the highest quality standards was a big challenge for manufacturers across the industry.

👉Elprom Heavy Industries made it possible to deal with this critical requirement by offering its solutions with a shorter delivery time than ever. With over 70 years of innovations in Europe, and addresses such challenges by offering a wide range of RS model OLTCs, with both oil-type and vacuum-type technology.Recent improvements in our Lean manufacturing process have enabled Elprom to produce standard and custom designed OLTCs typically within 6 to 10 weeks, meeting global demands of our customers.

Optimization of Manufacturing Processes:

• Lean Manufacturing Principles: By implementing Lean manufacturing principles, we have streamlined each stage of our OLTC production cycle, enhancing efficiency and reducing lead times.

• Advanced Project Management: Leveraging advanced project management techniques, including Just-In-Time (JIT) practices, has minimized downtime and boosted overall productivity in our OLTC manufacturing process.

Improvement of the Supply Chain:

• Strengthened Supplier Relationships: We redefined the delivery schedules with our suppliers, ensuring reliable and timely delivery of critical raw materials for manufacturing process.
• Optimized Logistics: Refinement in our logistics, and by using state-of-the-art planning tools. We significantly reduced raw material delivery times to ensuring swift and efficient production.

Investment in Technology and Equipment:

• Modernization and Automation: with the upgradation of our production units and incorporating advanced automation technologies, we achieved acceleration in manufacturing of OLTCs and improved product quality.
• Enhanced IT Solutions: The adoption of cutting-edge IT solutions for managing production data has provided us with superior control over our processes and a rapid response to any changes or challenges.

Employee Skill Development:

• Continuous Training: We conduct employee-development training for our team members to update their knowledge and understanding of the new state-of-the-art machines, which has not only enhanced their work efficiency but also boosted the overall efficiency of our OLTC production.
🔗For more information feel free to contact us at [email protected]















𝟰𝟬 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝗰𝗲: 𝗘𝗹𝗽𝗿𝗼𝗺’𝘀 𝗢𝗟𝗧𝗖 𝗨𝗻𝗶𝘁𝘀 𝗦𝘁𝗶𝗹𝗹 𝗣𝗼𝘄𝗲𝗿𝗶𝗻𝗴 𝗥𝗼𝗺𝗮𝗻𝗶𝗮’𝘀 𝗚𝗿𝗶𝗱𝗔 𝗟𝗲𝗴𝗮𝗰𝘆 𝗼𝗳 𝗘𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝗰𝗲: 𝗧𝗵𝗲 𝗧𝗶𝗺𝗲𝗹𝗲𝘀𝘀 𝗥𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁...
15/08/2024

𝟰𝟬 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗘𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝗰𝗲: 𝗘𝗹𝗽𝗿𝗼𝗺’𝘀 𝗢𝗟𝗧𝗖 𝗨𝗻𝗶𝘁𝘀 𝗦𝘁𝗶𝗹𝗹 𝗣𝗼𝘄𝗲𝗿𝗶𝗻𝗴 𝗥𝗼𝗺𝗮𝗻𝗶𝗮’𝘀 𝗚𝗿𝗶𝗱

𝗔 𝗟𝗲𝗴𝗮𝗰𝘆 𝗼𝗳 𝗘𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝗰𝗲: 𝗧𝗵𝗲 𝗧𝗶𝗺𝗲𝗹𝗲𝘀𝘀 𝗥𝗲𝗹𝗶𝗮𝗯𝗶𝗹𝗶𝘁𝘆 𝗼𝗳 𝗘𝗹𝗽𝗿𝗼𝗺’𝘀 𝗢𝗟𝗧𝗖 𝗨𝗻𝗶𝘁𝘀
Back in 1986, Elprom Heavy Industries shipped a set of On-Load Tap- Changer (OLTC) units to Romania. These were crafted with the kind of meticulous attention to detail and quality that defined our work. Fast forward nearly 40 years, and these same units are still in operation, a quiet testament to the durability and reliability that Elprom is known for.

𝗢𝘃𝗲𝗿 𝟭𝟬𝟬,𝟬𝟬𝟬 𝗦𝘄𝗶𝘁𝗰𝗵𝗶𝗻𝗴 𝗢𝗽𝗲𝗿𝗮𝘁𝗶𝗼𝗻𝘀 𝗮𝗻𝗱 𝗦𝘁𝗶𝗹𝗹 𝗚𝗼𝗶𝗻𝗴 𝗦𝘁𝗿𝗼𝗻𝗴
These OLTC units have been integral to Romania’s power grid for decades, performing more than 100,000 switching operations without fail. That is a staggering number, considering how much the energy landscape has evolved over the years. Yet, these units have kept up, continuing to deliver the consistent, reliable performance they were built for.

👉𝗟𝗲𝗮𝗿𝗻 𝗺𝗼𝗿𝗲: https://voltap.com/articles/view/40-years-of-excellence-elprom-s-oltc-units-still-powering-romania-s-grid





🏅We did it🏅Congratulations to the Legion Run enthusiasts of Elprom Heavy Industries. 👏They proved that with joint effort...
11/07/2024

🏅We did it🏅

Congratulations to the Legion Run enthusiasts of Elprom Heavy Industries. 👏They proved that with joint efforts we can overcome all the difficult obstacles on the 5 km course that Legion Run 2024 had prepared. It is not just about testing our limits but also about fostering teamwork, resilience, and having a blast together!✨🌟

From trudging through mud pits to scaling towering walls, our team showed unwavering determination, and spirit.💪🏃

A huge shoutout to everyone who participated and cheered our team on.🙌





Powering Georgia's Future: New Transformer Installation in the Heart of the City📣We are excited to announce the successf...
14/06/2024

Powering Georgia's Future: New Transformer Installation in the Heart of the City

📣We are excited to announce the successful installation of a new 32/40 MVA, 115/38.5/6.3 kV transformer with VOLTAP OLTC in Georgia. This upgrade significantly enhances the reliability and capacity of their electricity system.
This is not just a technical enhancement, it is a significant boost for the local community🚀 Reliable power is a cornerstone of economic development, enabling businesses to operate smoothly and residents to enjoy a higher quality of life. Additionally, the increased capacity supports new housing, commercial projects, and public services, fostering growth and development in the heart of the city.
🙏We thank our dedicated team, local authorities, and community members for their support. This project underscores our commitment to building a resilient and forward-looking electricity system⚡ that meets the needs of today and anticipates the demands of tomorrow.

Successful meetings at CWIEME Berlin 2024📣We are delighted to announce that Elprom Heavy Industries took part in the 202...
05/06/2024

Successful meetings at CWIEME Berlin 2024

📣We are delighted to announce that Elprom Heavy Industries took part in the 2024 edition of CWIEME held in the Berlin Messe from the 14th till the 16th of May.
Our company presented its solutions in the power industry - on-load tap-changers with and without vacuum interrupters, motor drive units, de-energized tap-changers⚡

👉During the event Elprom Heavy Industries showcased one of its latest developments - RSV12, an OLTC with vacuum interrupters, separate oil compartment and a new Elprom design. The RSV12 is designed to operate with single-phase power transformers and three-phase transformers with triangle and star connected windings. It is a cost-effective and low-maintenance solution that can substitute a set of 2 or 3 tap-changers in the power transformer. Built to meet and exceed the requirements of IEC 60214-1:2014, the RSV12 has a compact design with a separate oil compartment easy for repair and maintenance.

Through the event, our team engaged in numerous fruitful meetings with current and potential clients, industry experts, and partners. Our team successfully showcased our latest innovations🚀, discussed collaborative opportunities, and receive invaluable feedback. The insights gained and the connections made during these interactions will undoubtedly drive our growth and enhance our service offerings.

🙏We want to extend our gratitude to everyone who visited our booth and took time to meet us. Your enthusiasm and support are greatly appreciated. We look forward to nurturing these relationships and exploring new possibilities together.
Thank you, CWIEME Berlin, for providing such a fantastic platform for networking and knowledge sharing. See you next year!

Positive emotions, sports spirit and contested matches. This is how the traditional table tennis tournament of Elprom He...
04/06/2024

Positive emotions, sports spirit and contested matches. This is how the traditional table tennis tournament of Elprom Heavy Industries took place. Thank you to all colleagues for participating and congratulations to the winners!🏆

Harnessing the Power of the Sun: New 40/50 MVA Power Transformers for Solar Park in Bulgaria📣We are delighted to announc...
29/05/2024

Harnessing the Power of the Sun: New 40/50 MVA Power Transformers for Solar Park in Bulgaria

📣We are delighted to announce that Elprom Heavy Industries has successfully delivered two advanced power transformers, each rated at 40/50 MVA with a voltage of 110/33/(6.3) kV ONAN/ONAF, to a major solar park in Bulgaria. These transformers are equipped with the cutting-edge Voltap On-Load Tap-Changer (OLTC), marking a significant contribution to Bulgaria's expanding renewable energy infrastructure♻️

At Elprom Heavy Industries, we are dedicated to advancing sustainable energy solutions through innovative engineering 🚀⚡ Our successful delivery of these power transformers underscores our commitment to supporting Bulgaria’s renewable energy goals and demonstrates our capability to provide top-tier products for major projects worldwide.

As we continue to contribute to the global renewable energy transition, we are excited about the opportunities ahead✨ The successful installation of these transformers is a significant milestone, and we look forward to supporting more projects that drive sustainable development and environmental stewardship.

📣 We are proud to announce that Elprom Heavy Industries has successfully designed, manufactured, and delivered a state-o...
22/05/2024

📣 We are proud to announce that Elprom Heavy Industries has successfully designed, manufactured, and delivered a state-of-the-art power transformer to a prominent wind farm in Greece. This latest achievement highlights our commitment to providing cutting-edge electrical solutions for renewable energy projects.

🚀 The transformer, rated at 65/75 MVA with a voltage of 150/33 kV and featuring ONAN/ONAF cooling, represents a significant milestone in our product line. Equipped with the advanced VOLTAP On-Load Tap-Changer (OLTC), this transformer ensures optimal voltage regulation and enhanced operational efficiency, crucial for the dynamic demands of wind energy generation.

This project underscores our dedication to supporting the global transition to renewable energy ♻ By integrating our high-performance transformers into wind farms, we are contributing to a sustainable future and reinforcing our position as serious ally in the power industry.

🙏 We extend our gratitude to our dedicated team and partners who have made this accomplishment possible. We look forward to continuing our work on innovative projects that drive progress and sustainability in the energy sector.

20/05/2024

Elprom Heavy Industries, a global leader with a rich history of producing On-Load Tap-Changers (OLTCs) for the electrical power industry further solidified its presence in Pakistan’s market with a groundbreaking seminar held in Lahore on April 23, 2024. The event was hosted by Elprom's regional sa...

Address

41, Rojen Boulevard Sofia, Bulgaria, 1000, BG
Sofia
1271

Opening Hours

Monday 08:00 - 16:30
Tuesday 08:00 - 16:30
Wednesday 08:00 - 16:30
Thursday 08:00 - 17:00
Friday 08:00 - 17:00

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