Overview

High Voltage Direct Current (HVDC) systems enable utilities to move more power further, efficiently integrate renewables, interconnect grids, and improve network performance. HVDC systems utilize power electronics technology to convert AC and DC voltage and are ideal for supporting existing systems or building new power highways.

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GE Vernova provides solutions that offer grid operators the ability to provide reactive power support, enhance controllability, improve stability and increase power transfer capability of AC transmission systems.

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GE Vernova offers solutions for a variety of substation projects and applications, including Modular Substation Automation Systems, utility and industrial substation projects, as well as DC substation solutions.

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The energy landscape today is changing, this is being led by the current industry trends of Decarbonization, Digitization, Decentralization and Electrification. Discover how GE Vernova is working with utility, consumer and industrial customers to design and deploy tailored Microgrid and Distributed Energy Resource (DER) Management solutions.

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Innovations to Decarbonize the Electrical Grid. GRiDEA is our portfolio of decarbonization solutions that empower grid operators to address their net-zero objectives.

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GE Vernova offers a wide range of transformer solutions for the utility, industrial, commercial, residential and energy markets. These solutions feature flexible, reliable and robust designs to support a wide range of applications. With units operating in some of the most demanding electrical environments around the world, We design and delivers transformer solutions that provide among the highest level of performance and reliability to meet rigorous operating requirements.

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GE Vernova provides GIS solutions from 50 kV to 800 kV, along with secondary products to maximize switchgear and network operation. The portfolio includes a full range of SF6 GIS as well as g3 (SF6-free) GIS at 145 kV and 420 kV voltage levels for utilities and industries worldwide.

Overview

GE Vernova is one of the top circuit breaker suppliers in the world. Our products include a range of live tank circuit breakers (up to 800 kV), dead tank circuit breakers (up to 550 kV), as well as hybrid and compact switchgear assemblies. We also provide solutions for power generation applications with our generator circuit breakers for installations up to 1,500 MW.

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GE Vernova is a global market leader for disconnectors (disconnect switches) since 1960, with 8 product facilities in 7 countries and hundreds of thousands installations in more than 130 countries around the world. The portfolio includes disconnectors for AC applications (up to 1,200 kV), for DC applications (up to 1,000 kV) and for railway applications. We also offer power connectors to connect two or more conductors for a continuous electrical path.

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GE Vernova is an industry leader in the design and manufacturing of high, medium and low voltage instrument transformers. With more than 100 years of experience, We offer a broad array of standard and high accuracy models for revenue metering and system protection applications. The portfolio of instrument transformers ranges from low voltage at 600 V suitable for industrial and high accuracy revenue metering, all the way up to high voltage at 1,200 kV. The portfolio also includes line traps and digital instrument transformers.

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For a century, utilities have relied on us to deliver electrical products and services to meet their quality, durability and performance needs. Our capacitor and reactor product lines are an integral part of our portfolio. GE Vernova provides power capacitors that meet ANSI, IEEE and IEC standards, and our low voltage capacitors are UL listed. Ratings range from 1 kvar to 500 MVAR, and from 240 volts to 500 KV.

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GE Vernova provides a broad range of bushings and surge arresters to help protect electrical assets. The bushings portfolio includes AC and DC solutions that enable long life, high reliability and installation flexibility. GE’s Tranquell surge arresters are ideal for distribution and EHV applications up to 612kV, and are available as polymer and porcelain station and intermediate class IEEE/ANSI C62.11.

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Overview

Our SF₆-free switchgear range features the same ratings and same dimensional footprint as the state-of-the-art SF₆ equipment, with a drastically reduced carbon footprint.

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The collection of required asset condition data from the field on a large scale for GE Vernova and 3rd party electrical equipment is a key step in building a robust Asset Performance Management strategy. Grid Services specialists are constantly evaluating and implementing new innovative inspection technologies applying strict processes and methods. The digital inspections methods are designed to improve the efficiency of data collection, oil analysis and online monitoring. All new approaches to capture data are integrated into the EnergyAPM ecosystem for automatic data transfer.

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Energy costs are significant expenses for utilities and industries at large, particularly those that are energy-intensive or operate heavy machinery. Between 5% and 25%* of the expenses in these organizations are allocated to energy payments, with up to 15%** of this energy consumption being wasted during operations.

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GE Vernova offers a wide range of solutions to monitor and manage critical assets on the electrical grid, detect and diagnose issues and provide expert information and services to customers. Our asset monitoring and diagnostics portfolio includes solutions for single- and multi-gas transformer DGA, enhanced transformer solutions and switchgear monitoring, as well as software and services.

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GE Vernova's Grid Solutions business electrifies the world with advanced grid technologies and systems, enabling power transmission and distribution from the grid to homes, businesses, and industries effieciently and reliably.

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GridBeats™ is a portfolio of software-defined automation solutions for grid digitalization. The portfolio is designed to enable utilities and industrial customers to ensure a stable, efficient energy supply amidst the growing integration of renewable energy sources and aging infrastructure.

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GE Vernova's Critical Infrastructure Communications solutions deliver comprehensive networks that are designed to be secure, flexible, and tailored to meet customers' objectives and unique geographic requirements.

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GE Vernova's comprehensive portfolio of solutions for implementing and managing a substation.

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GE Vernova's Asset Lifecycle Management services combine a large set of methodologies to collect condition data off and online, consulting and asset optimization services using digital technology to improve the monitoring, recording and analysis of asset operations and predict asset behavior.

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GE’s innovative and high-quality services help maintain and optimize high-voltage electrical assets throughout their entire lifecycle. Leveraging the design and manufacturing knowledge of our engineers, the customized service solutions ensure substations and networks perform as planned. Experts deliver services for applications across the power system, keeping assets up-to-date, safe, reliable and efficient while improving customers’ return-on-investment.

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GE Vernova provides a full range of services & support tailored to meet a broad range of power system needs across utility and industrial applications. With deep domain knowledge and industry expertise GE’s service application engineers and technical specialists can help plan, design, operate, maintain, and modernize your protection, control, monitoring and automation systems.

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GE Vernova provides comprehensive services throughout the systems lifecycle. The services can be provided by our local team and with the support of our global Competence Centers when the equipment is installed, during the warranty period and beyond.

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Our technical experts are ready to equip customers with the knowledge needed to effectively manage their critical assets and systems, and increase their return on product investments. Our training courses are offered in a variety of ways, including online, onsite at customer locations, and in our state-of-the art training centers around the world.

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GE Vernova's Grid Solutions' Testing Laboratories enable manufacturers and end users to test their primary equipment by leveraging deep domain expertise and testing facilities, to develop enhanced high voltage products and certify their capabilities before market introductions.

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GE Vernova delivers materials and eco-design studies for high voltage solutions to accelerate insulation and environmental innovation. GE’s services provide the expertise and methods that enable new value to support customer engineering, sourcing, quality control and EHS activities.

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With the rapid digitalization of the grid, utility, power generation and industrial operators require cybersecurity solutions to monitor and protect grid asset and systems from increased severity and frequency of cyber attacks. GE Vernova adopted a “defense in depth” approach, providing innovative cybersecurity solutions designed to increase operational integrity, comply with regulations and control costs of security.

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Utilities today seek to create and connect new sources of power generation to meet growing global demand, while also managing grid reliability, costs and regulatory factors.

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Water is central not just to the economy, but to life. As a result, water treatment systems demand secure, dependable power to ensure process uptime. From the grid-connected substation to reliable electrical protection, control, and power quality metering, GE Vernova offers tailored solutions to keep critical plants operational and meet the unique needs of the water and wastewater industry.

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As power systems become increasingly interconnected and complex, utilities need solutions that optimize energy transmission and management while improving reliability.

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Data centers – and the information they store – are becoming increasingly integral to the way we live our lives every day. With rising demand also come rising costs. And more importantly, the information in these centers must remain secure while simultaneously accessible. We provide data centers with electrical infrastructure solutions from the input utility source to the IT server racks. This includes high-voltage switchgear and transformers, medium and low voltage electrical equipment, automatic transfer switches, switchboards, UPS systems, critical power PDUs, static transfer switches, and overhead busway. This chain of electrification products provides high quality and reliable products and services for the entire lifecycle of a data center.

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The oil and gas industry is evolving at a rate never seen before, facing shifting pricing levels, ever-changing regulatory requirements, and increased environmental consciousness. Through reliable, safe, and innovative solutions and a holistic service offering, GE Vernova can help the energy sector thrive in this changing reality.

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Modernizing and digitizing the distribution grid is imperative for utilities and customers to enhance power system stability and safety, while increasingly integrating distributed power and demand response.

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The industry is changing. Simultaneously, so are your utility’s needs. Operational effectiveness, power stability, and critical asset management are key priorities – whether in pulp and paper, steel, or data centers. GE’s holistic portfolio of products and services are designed with reliability, innovation, and sustainability at the forefront, helping you face the energy transition with ease.

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Mining companies require secure communications, efficient asset performance management, and dependable, innovative technology to protect their critical assets. GE Vernova offers a broad product portfolio to help you through each step of the mining process – safely and reliably.

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HV/MV Equipment
Power Transformers

Home > HV/MV Equipment > Transformers > Power Transformers

  

Power Transformers

Low maintenance, high performance, digital and environmental-friendly designs

GE’s comprehensive suite of power transformers support a wide range of voltage levels with applications in generation, transmission and distribution. GE offers a wide variety of power transformers from medium to ultra-high voltage (1200 kV AC and ±1100 kV DC) and from small (5 MVA) to very large power ratings (2750 MVA).

Our product lines include conventional, special transmission such as phase-shifting, SVC, HVDC, low maintenance and reactors, as well as green power transformers. GE’s power transformers provide exceptional performance, quality and reliability with digitized protection and monitoring schemes and advanced design and testing capabilities.

For specific North America offering click here

GE Advantage
Conventional Power Transformers
Special Power Transformers
Green Transformers
Power Transformers interactive app

    DIGITIZED POWER TRANSFORMERS

  • Continuous & intelligent bushing monitoring
  • Online gas analysis of up to 7 fault gases plus oxygen & moisture
  • Constant temperature monitoring for winding hot spots
  • Fast tripping with unrestrained differential element

    DESIGNED FOR RELIABILITY

  • Design verified with sophisticated validation & analysis software
  • High short circuit withstand
  • Wide range of options for HV/MV bushings

    HIGH PERFORMANCE

  • High efficiency cooling system with speed controllable fans
  • Minimizing losses & noise level
  • Leakage flux control reduce stray losses & hot spots

    ADVANCED DESIGN & TESTING

  • Extensive testing capabilities with in-house developed design rules & software
  • Strong contribution to industry & standardization organizations (i.e: CIGRE & IEEE)
  • State-of-the-art software & design analysis tools

Conventional Power Transformers

Power Transformer

GE’s large, medium and small power transformers include equipment and solutions tailored to meet global customer’s needs. GE utilizes the latest in design, measurement and testing tools to ensure each transformer meets and exceeds the latest industry standards, as well as operational and customer specifications. Our design software includes sophisticated, in-house scientific calculation tools to perform advanced transformer analytics.

The power transformer design optimization, verification and analytical software supports consistent fulfillment of all specified requirements and efficiencies greater than required by 2020 EC Energy Directive, EN 50629 and EN 50588-1. Examples of high efficiency are found in optimized transformer cooling, low air forced cooler noise, advanced core design techniques that reduce no-load loss and no-load noise, and accurate design verification tools.

Key benefits

  • Large power transformers up to 1200 kV AC and power ratings up to 1000 MVA
  • Small and medium power transformers up to 245 kV and 120 MVA
  • The design and rating of tertiary windings and coupling arrangements are adapted to customer’s requirements
  • Autotransformers up to 1200 MVA and voltages up to 765 kV Learn more
  • Generator step-up transformers up to 1000 MVA Learn more

Autotransformers

GE’s Autotransformers

Compared with interconnection transformers of equivalent power flow, the autotransformer presents a lighter and more economically optimized solution which is possible whenever the voltage ratio is between 1 and 2. However, autotransformers have non-disconnected windings, meaning there is no galvanic insulation between the interconnected systems.

Characteristically for complex regulation arrangements, autotransformers impose a total mastership of dielectric phenomena. Designs for constant flux regulation at high voltages or booster schemes are part of GE’s mastery. For many years, GE been supplying very high rated autotransformers such as single phase up to 500 MVA and very high voltage up to 765 kV for networks all over the world.

Key features:

  • Available up to 765 kV
  • Designed for constant flux regulation at high voltages and booster schemes
  • Advantages include compact footprint, lighter weight and lower losses

Generator Step up Transformers

GE’s generator step up GSU transformers

GE’s generator step-up (GSU) transformers are designed and manufactured to stringent standards, providing superior performance and long life. They are suitable for nuclear, thermal and hydraulic applications from small to high voltages with power ratings from 5 MVA to 1000 MVA. The step-up transformers have delta-connected LV windings energized by the generator voltage, while star connected HV windings are connected to the transmission lines.

Constantly faced with voltage changes either due to load rejection or switching operations, followed by generator over excitation, the transformer must also maintain the ability to withstand over-loads. The high rated current involved requires absolute control of the magnetic field inside the tank to avoid localized overheating of associated metallic parts. All of these situations are taken into account by GE during the design process of individual units and are tested with state-of-the-art techniques.

Thanks to our specific know-how coupled with state-of-the-art modeling and design tools, GE is able to provide solutions that meet unique power requirements with every installation.

Special Power Transformers

Prolec GE taps into state-of-the-art technology and deep domain expertise in insulation structures, thermal requirements and magnetic field distribution applications, to provide power transformers with exceptional performance, quality and reliability.

Phase-shifting Transformers

PHASE-SHIFTING TRANSFORMERS

As high voltage network systems are connected with each other at several points, the necessity of controlling the flow of energy increases. Classical voltage regulation without phase shifting is no longer sufficient for these situations. GE’s phase-shifting transformers, rated up to 2750 MVA, are available as single core units with independent phase angle and voltage regulation, and as dual core for higher power and voltages. Quadrature boosters provide an economical solution when limited phase-shifting angles are required with voltage variations.

Transformers For SVC

TRANSFORMERS FOR SVC

GE’s Static Var Compensator (SVC) systems can help grid operators to gain accurate control of reactive network power, maximize power transfer capability, improve steady-state and dynamic stability within the grid. GE’s SVC power transformers are custom designed and built to handle harmonic loading and a wide voltage variation. These can be configured as three phase units or a bank of single phase units. The function of the power transformers is to connect the medium voltage equipment to the high voltage transmission grid.

Industrial Transformers

INDUSTRIAL TRANSFORMERS

GE’s industrial specialized transformers portfolio includes a wide range of rectifier transformers for the electrolysis process of metal or chemical industries, as well as AC or DC Electrical Arc Furnace (EAF) transformers. With expertise in products up to the highest ratings in the world, GE’s references include rectifier transformer combinations above 80 kA DC current ratings and EAF transformers up to 300 MVA.

Low Maintenance Transformers

LOW MAINTENANCE TRANSFORMERS

Hermetically sealed power transformers without oil conservator are GE’s field-proven answer to today’s needs. Thanks to the innovative design of the radiators, the oil expansion vessel is not needed and thus the oil is prevented from coming into contact with ambient humidity. Service life is also increased with the use of a vacuum-switch on-load tap-changer (OLTC) that eliminates contact erosion. With minimal oil and OLTC aging rate, the Hermetik does not require any particular maintenance or work over its service life, speeding up the return on your investment.

Oil-immersed Reactors

OIL-IMMERSED REACTORS

GE’s environmental-friendly, long-life, maintenance-free reactors enhance system performance and power quality from transmission and distribution to industrials, improving network operational efficiency. This results in considerable savings for customers and reduces the environmental impact of their operations.

HVDC Converter Transformers

HVDC CONVERTER TRANSFORMERS

GE offers a wide range of dedicated High Voltage Direct Current (HVDC) systems that enable efficient and reliable transmission of energy over long distances and interconnect networks with different characteristics and frequencies. GE is an expert in the design and manufacture of HVDC converter transformers with sophisticated insulation and thermal structure. Ratings include 500 MVA and voltage levels up to 800 kV.

Green Transformers

Green Power Transformer

GE has developed a wide offering of green solutions for power transformers ranging from 10 to 500 MVA and ratings up to 550 kV. Our environmentally-friendly solutions are aimed at meeting the major energy challenges of today and tomorrow: energy efficiency, market efficiency, grid reliability, enhanced overload capability, low loss, low noise and environmental concerns.

GE’s green power transformers offer significant environmental benefits, including better product performance, across the phases of the product life cycle:

  • Reduced consumption of natural resources during manufacturing
  • Lower CO2 emissions, limitation of environmental risk, noise reduction, space savings and energy efficiency during operation
  • Recycling capabilities of products at the end of their life

Key benefits

  • Range of green eco-efficient power transformers, from 10 to 500 MVA and up to 550 kV
  • Prevention of pollution and increased safety by using natural ester insulation liquid
  • Innovative technologies to reduce acoustic energy transferred and optimized design of the active part
  • Optimized low loss levels
  • Innovative technology to reduce noise level
  • Reduced maintenance cost, extended life time and increased overload with hermetically-sealed tank design, equipped with patented expandable radiators and vacuum type tap changer
  • On-line condition monitoring system
  • State-of-the-art factories around the world
VG-100 Fluid – Vegetable Oil for Electrical Transformers

VG-100 Fluid – Vegetable Oil for Electrical Transformers

VG-100® is a biodegradable dielectric fluid developed by Prolec GE, with patents granted for its application in electrical transformers. VG-100 has been satisfactorily used in more than 500 units since its introduction in 2009, and is an excellent alternative to mineral oil for use in new transformers and retrofill applications.
View the brochure.

Manufacturing Excellence

GE manufacturing plants are highly automated digital factories that use the GE Predix platform for machine learning and modeling.

Itajubá Brazil plant photo

Itajubá, Brazil
Our Itajubá factory supplies a broad range of engineered equipment for all segments and commercial regions, by means of state-of-the-art machinery and design criteria, first class raw material, strict production and quality controls, and very experienced staff.

Products manufactured in Itajubá, Brazil:

  • Air-core dry-type reactors
  • High voltage capacitor units and banks
  • High voltage harmonic filters
  • AIS products (instrument transformers, circuit breakers, disconnectors and line traps)
Tampere Finland plant photo

Tampere, Finland
Our factory in Tampere was built in 1983 and is home to the Nokian capacitors brand. Tampere has more than 30 years factory-based experience making high and low voltage capacitors and air core reactors. In 2005, a new reactor factory was added to provide components and complete solutions for all PFC and filtering problems. Tampere has further improved its processes with recently renewed IT systems. Our Tampere factory is ISO 9001, ISO 14001 and OHSAS 18001 certified.

Products manufactured in Tampere, Finland:

  • High voltage capacitor units and banks
  • Low voltage capacitor units and banks
  • Air core reactors

References

For more than 50 years, GE has provided global support and advanced technologies to +1,000 customers in 80 countries, offering a broad range of reactors for many market segments. GE is an industry leader in design and manufacturing process with compliance in international technical and certification standards. Below are a select representation of our projects, a complete reference list is available upon request.

References map

1. Canada (2016)
HVDC Smoothing Reactors
AC/DC Filter Reactors

5. Peru & Colombia (2012-2018)
Current Limiting Reactors
Neutral Grounding Reactors
Damping & Filter Reactors

9. Scotland (2002)
FACTS (SVC)

13. South Korea (2014)
HVDC Smoothing Reactors

2. USA (1995-2018)
FACTS – SVC & FSC
Shunt Reactors
Current Limiting Reactors
Neutral Grounding Reactors
Damping & Filter Reactors

6. Chile (2010-2017)
FACTS – SVC & FSC
Current Limiting Reactors
Neutral Grounding Reactors
Damping & Filter Reactors

10. France, Germany and Netherlands (2002-2018)
Damping & Filter Reactors
Neutral Grounding Reactors

14. Thailand (2006-2018)
Damping & Filter Reactors

3. Mexico (2000-201)
FACTS – SVC & FSC
Current Limiting Reactors
Damping & Filter Reactors

7. Uruguay (2010)
Melo HVDC

11 Turkey (2008)
FACTS (SVC)

15. Malaysia (2002-2018)
Damping & Filter Reactors

4. Brazil (2012)
Rio Madeira HVDC

8. Brazil (1976-2018)
FACTS (SVC & FSC)
Current Limiting Reactors
Neutral Grounding Reactors
Damping & Filter Reactors
Arc-Furnace Reactors
Laboratory Reactors

12. South Africa (1998-2018)
Current Limiting Reactors
Damping & Filter Reactors

16. Australia (2010-2018)
Shunt Reactors
Damping & Filter Reactors