Transformer services

From power transformers to HVDC transformers, these key components are crucial for a seamless, uninterrupted power supply. Despite their ruggedness and reliability, they are susceptible to aging and wear over their decades of use.

Transformer Services - a strategic way to increase value. Transformer Services allow for targeted expenditure planning and controlled timing of new investments, avoiding unforeseen outages and minimizing planned downtimes. It also reduces environmental impact while maximizing transformer availability. This service concept applies to all transformers in your network, irrespective of age, manufacturer, or power. We service all generations of transformers.

Transformer Services are designed to prevent unplanned downtimes and optimize planned maintenance measures. We recognize that even planned service interruptions have increasingly shorter windows. Our solution includes mobile technologies and methods, with expert teams that provide on-site support. From oil-drying systems to high-voltage testing stations, our mobile repair workshops are fast, flexible, and can be integrated into your operations. This complements the performance spectrum of Siemens Energy repair facility, enhancing service reliability.

Siemens Energy is your trusted partner for transformer installation and commissioning. Our global team of experts ensures your transformers are integrated flawlessly into your power network, with a focus on safety, reliability, and performance.

We provide swift and strategic access to installation sites, leveraging our international presence for local-level execution. Our process is thorough yet efficient, encompassing careful planning, precise installation, and rigorous testing to guarantee optimal operation.

With Siemens Energy, you benefit from competitive pricing and the high-quality service synonymous with our name. Trust us to energize your infrastructure with expertly commissioned transformers that stand the test of time.

At Siemens Energy, we are dedicated to providing an extensive array of preventive maintenance services that are crucial for the optimal performance and longevity of your assets. Our offerings encompass DIAG EA – our premier expert condition assessment, augmented by our specialized diagnostic services (DIAG TRF). This suite of services includes expert consultation, comprehensive oil testing, and meticulous electrical and high voltage onsite assessments.

To further protect your equipment and ensure its peak functionality, we offer Transformer oil regeneration (REG), oil drying (DRY), and moisture monitoring solutions, all designed to proactively prevent damage.

Beyond on-site services, our local, certified professionals are equipped to conduct in-depth analyses and develop tailored repair strategies that include both on-site and factory repair options. We can perform immediate failure analysis and facilitate swift on-site transformer repairs through our advanced mobile facilities. Additionally, for more complex refurbishments or upgrades, our specialized factory repair services offer a controlled environment that ensures the highest standards of quality and efficiency. Trust Siemens Energy to deliver unparalleled service, minimizing downtime and maximizing the performance of your energy systems."

Transformer Services offers a Diagnostic service (DIAG) that enhances transformer reliability and longevity via thorough diagnostics for single units or fleets. With three service levels, customers receive inspections, diagnostics, high voltage tests, and expert evaluations for clear and informed decisions. Detailed reports from seasoned professionals include actionable recommendations to prevent failures and boost transformer performance. DIAG helps optimize maintenance, prevent outages, and increase operational safety and security.

The DIAG portfolio is complemented by helpful digital solutions creating additional value:

The Diagnostic Services Dashboard provides full transparency on the condition of transformers and entire fleets and is exclusively available for DIAG customers.

The Direct Current Detector app transforms any smartphone into a DC-detection device.

Our services include insulating oil analyses and material testing, which involve diagnostic test procedures for ageing analysis, condition detection, and new state assessments of oils and insulating materials. The lifespan of a transformer depends on the ageing of the insulating materials, and our services aim to recognize material degradation and extend transformer lifespan through trend analysis and targeted maintenance. The Material Testing Laboratory for Transformers offers comprehensive services, including sample collection, analysis, and assessment, to identify ageing processes and ensure reliable performance.

With diagnostic information in hand, the next critical step is its interpretation and application. Siemens Energy offers expert consultancy services to ensure you leverage your diagnostic results to their fullest potential. Our approach is comprehensive; we consider your entire fleet of transformers, regardless of age or manufacturer. This inclusive strategy provides you with a robust foundation for making informed decisions regarding replacement investments, maintenance, or asset value preservation.

Depending on the initial situation, it may be expedient from an economic standpoint to have an older or damaged transformer overhauled at one of our Siemens Energy production locations.

Based on our experience, an overhaul restores transformer availability for an extended time with no restrictions in operating reliability. There are advantages over the production of a new transformer. An overhaul and restoration are usually significantly more cost-effective and time-efficient. Our customers also experience significantly shorter outage times.

REG, the online regeneration technology, can clean aged or corrosive transformer oil, restore its dielectric properties, and increase the transformer availability. Regeneration processes requires special equipment, high competence, and long-time experience of staff. Siemens Energy operators have experience in online regeneration of more than 300 transformers with different design, connections and at various ambient temperatures.

REG, removes degradation products and corrosive compounds from transformer oil during normal transformer operations. This not only ensures operational efficiency but also offers substantial economic and ecological advantages.

Power transformers degrade over time, with moisture in the insulating paper hastening this process. This moisture can come from insufficient drying during production, environmental damage, or the degradation process itself. A single oil treatment won't have a lasting effect as 98% of the moisture is in the insulating paper.

Siemens Energy Transformer Service method effectively slows down the unavoidable aging process within your transformers, thus extending their lifespan. Our widely recognized DRY is a stationary and continuous transformer drying system.

In addition to our repair and maintenance services, we provide modernization of hardware and software with state-of-the-art versions. We also offer retrofitting of individual components to maintain delivery capacity, as well as overhauling transformers to ensure optimal functionality. Furthermore, we provide system-wide feature upgrades and performance enhancements to meet evolving operational needs.

Bushings in transformers need replacement due to natural wear and tear, which can lead to deterioration from environmental and mechanical factors. As insulation materials age, their effectiveness diminishes, increasing the risk of electrical faults. Additionally, damaged bushings may leak oil, compromising their insulating properties. Upgrading to modern components not only addresses these issues but also enhances the overall efficiency and reliability of the transformer.

Regular inspection and timely replacement of bushings are essential to maintain the optimal performance and longevity of transformers.

Transformers require winding modernization to maintain optimal performance and reliability. Over time, windings can degrade due to electrical stress, thermal cycling, and insulation breakdown. Modernizing the windings enhances efficiency, reduces energy losses, and extends the transformer’s operational life. By integrating advanced materials and technologies, Siemens Energy ensures your transformers meet the highest standards of excellence and sustainability, ready to face the demands of the future.

Transformers require external parts refurbishment to maintain optimal performance and reliability. Over time, external components such as bushings, radiators, and cooling fans can deteriorate due to environmental exposure and mechanical stress. Refurbishing these parts ensures the transformer operates efficiently, prevents potential failures, and extends its operational life. Siemens Energy’s expert refurbishment services guarantee that your transformers remain in top condition, delivering consistent and reliable power