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.


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.


GE Vernova's Grid Solutions' EBoP systems cater to all types of project requirements including supplying equipment, engineered packages, and full engineering, procurement and construction (EPC) implementations.


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.


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.


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, GE Vernova designs and delivers transformer solutions that provide among the highest level of performance and reliability to meet rigorous operating requirements.


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.


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.


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.


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.


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. We provide 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.


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.

Product Categories


SF6 (or Sulphur Hexafluoride) has been the standard gas used inside high voltage electrical equipment as an insulating and arc-quenching medium. However, SF6 is also listed as a potent greenhouse gas according to the Kyoto Protocol, with 24,300 times the comparative Global Warming Potential (GWP) of CO2 and a lifetime of 1,000 years in the atmosphere. With grid operators across the world becoming increasingly concerned about the environmental impact, GE Vernova offers a commercially available and viable alternative to SF6 to help utilities and industries reduce their environmental impact.


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.


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.

The GridBeats™ portfolio is designed to streamline grid digitalization, improve grid resilience, and empower utilities to manage their networks remotely, particularly in the face of the energy transition.


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.


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


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.


Business environment is constantly transforming for substation owners but the need to deliver consistent outcomes remains. That’s where a Flexible Service Agreement can help. By partnering with GE Vernova on a long term, customers can realize the full potential of their electrical substations and network assets while balancing performance and investment, along with predictable costs and flexible billing arrangements, letting them get back to focusing on what matters.


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.


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.


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.


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.


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.

GE Vernova provides a vast array of support and service offerings to help customers build, deploy, maintain and service their networks. Our highly skilled engineers and technicians provide front line support for customers across our product portfolio, including protection and control solutions, industrial communications networks, asset monitoring and diagnostics and software solutions.


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.


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.


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.


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.


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.


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


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.


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.


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.


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.


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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  Low Voltage CTs (600 V)
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Current and Voltage Transformers up to 69 kV

SUPERBUTE dry-type instrument transformers are engineered and rigorously tested to provide a measurable difference in reliability and durability. Since the very first unit produced in 1955, SUPERBUTE instrument transformers have provided utilities with a number of benefits for enhanced safety and a lower total cost of ownership. SUPERBUTE is designed to meet IEEE C57.13 standards and ANSI standard mounting provisions, terminals, and construction.

GE’s SUPERBUTE family of products supports system voltages up to and including 69 kV. The unique design of the SUPERBUTE family addresses the challenges with traditional voltage and current instrument transformers.


GE’s SUPERBUTE product range consists of Inductive Voltage Transformers and Current Transformers:

  • Indoor and outdoor designs
  • Rated voltages up to 69 kV
  • Rated basic insulation levels (BIL) up to 350 kV
  • Relay class ratings up to T800
  • Standard & Special High Accuracy metering classes

GE’s SUPERBUTE product range includes specifications suitable for a wide range of revenue metering, protection and control applications. Common uses include:

  • Substation metering and relaying
  • Primary metering cabinets
  • Pole-top primary metering assemblies
  • Control power for reclosers, capacitors, and other distribution equipment
  • Current of voltage sensing for switchgear, circuit breakers, and other control equipment

Key benefits Resiliant insulation Superior design Voltage transformers Current transformers Combined CT/VT

Key Benefits
Longer Product Life

Field studies and accelerated life testing has shown an average  operating life of more than 40 years, with reliability measures 3 times better than published industry benchmarks

Group of Superbute CTs

Distribution class SUPERBUTE offers compact designs for more efficient application to solid-state metering and other modern installations.

Substation class CTs

Station class SUPERBUTE offers higher burden, higher thermal rating, and extra creep distance for substations or installations where higher ratings are required.

Enhanced Safety

Internal insulation is made from epoxy resin which is encapsulated in tough, elastic butyl rubber, dampening and minimizing the impact of high energy events

Environmentally Friendly & Minimum Maintenance

Unique dry-type construction ends oil leakage problems, eliminates breakage and vandalism issues, and does not support combustion

Lower Total Cost of Ownership

The dry-type design eliminates the need for oil testing or filtering and allows for a compact design which facilitates mounting flexibility for more economical installations such as on existing steel structures, inside a cabinet, or on a pole

Fast Delivery

Extensive vertical integration within the factory allows for standard lead times of 4-6 weeks, nearly half the industry average

Tough & Resilient Insulation
HY-BUTE 60™ butyl rubber as the external insulation

The outer shell of SUPERBUTE transformers are made with GE’s proprietary formula of butyl rubber, which is called HY-BUTE 60. This material adds the following timeless advantages over epoxy resins or porcelains designs:

  • Encapsulating the unit with a tough, elastic rubber provides an inherent safety advantage as it dampens the severity of any potential failure
  • Unique chemistry provides for non-arc tracking surface, significantly reducing risk of failure from flashover
  • Legendary durability as this material does not easily chip, crack, or shear
  • Will not stress crack due to the external environment, even in extreme conditions such as -50°C
  • Maintains hydrophobicity over the life of the transformer
  • Does not support combustion
  • Does not oxidize or corrode

HY-Bute 60

GE’s proprietary formula of non-arc tracking butyl rubber showed no carbonization after 4,000 hours in salt-fog testing, compared to standard butyl rubber which failed after 107 hours or standard porcelain which failed after 400 hours under the same conditions

JVC350 cross section

Cross section of a JVS350 station-class voltage transformer showing Epoxy encapsulated with HY-BUTE 60 butyl rubber shell

Epoxy as the internal insulation

Epoxy takes the place of oil as the internal insulation and winding impregnation. The advantage of this design includes:

  • Reduced footprint with a compact design with up to 30% less height than the leading oil-filled designs
  • High tensile strength which allows for mounting in any position including vertical, horizontal, upside down, or at any angle
  • Environmentally friendly design eliminates hidden costs associated with traditional liquid-filled designs such as:
  • oil-leakage problems
  • oil filtering or testing
  • construction requirements for a large installation space or dedicated
       support structure
Superior Design Features
SUPERBUTE Advantage: Superior primary winding design and extra creep distance ensure accurate, reliable performance in harsh conditions

SUPERBUTE instrument transformers are designed for quality and reliability with features engineered to withstand high voltage stresses and extreme environmental conditions, while delivering the highest accuracies possible, all within a compact design. The result is a reliable, long-lasting, easy to handle design that ultimately lowers total cost of ownership.

Lattice-type windings for voltage transformer

Originally patented by GE, lattice-type windings have precise controlled positioning and distribution of each turn to reduce maximum voltage stress within the winding. This unique design also minimizes the possibility of partial discharges within the winding. The coil configuration, and the outer electrostatic shields distribute steep voltage fronts across the coil to reduce concentration of stress.

JVS350 winding

Lattice-type winding in a JVS350 station-class VT

JKW350 station class CT

Multi-gap type primary in a JKW350 station-class CT

Built-in surge protection for current transformers

A unique multi-gap type primary by-pass on current transformers 600 amps and below protects windings during line disturbances or steep current wave fronts. The gaps are factory adjusted to fire at 5000-7500 crest volts, thereby by-passing surge currents up to 100 times rated, which could otherwise result in excessive voltages across the primary winding.

High accuracy, extended range ratings for current transformers

The use of high accuracy instrument transformers with solid-state metering allows for improved billing accuracy and/or the potential to reduce inventory requirements. GE offers high accuracy and extended range ratings which meet the accuracy needed for these applications. Since introducing the first dry-type high-accuracy transformer solution in 1991, GE’s high accuracy product line has grown to a portfolio that includes a wide variety of voltage classes up to and including 69 kV.

Compact size & mounting flexibility

SUPERBUTE transformers require up to 30% less height and up to 40% less floor space compared to the leading oil-filled designs, and can be mounted in any position. This allows substation design flexibility including mounting on a substation steel structure or a pole.

Extra creep & strike

Even with 30% less height, standard units can be used in environmentally severe conditions and in high altitude (10,000ft) applications. Station class units have creep distances that exceed the requirements for even the next-level voltage class.

Superbute station-class distances table

SUPERBUTE station-class creepage distances versus IEEE C57.13-2008
required levels, by system voltage

SUPERBUTE transformers are more compact

SUPERBUTE transformers are more compact and lower profile compared to the lead liquid filled transformers

Voltage Transformers
zoom photo

SUPERBUTE Product Overview: Inductive Voltage Transformers

Outdoor Voltage Transformers: Outdoor voltage transformers are available at 5-69 kV and 60-350 kV BIL. These units are offered in two distinct sizes for efficient sizing:

Station class: Higher burden, higher thermal rating, and extra creep distance for metering and/or relaying applications in substations or installations where higher ratings are required such as high altitude or high contamination locations.

Distribution class: Compact designs, with lighter burden and thermal rating for more efficient application to solid-state metering and other modern relay and control power installations.

table of Superbute product classes

Indoor Voltage Transformers: Indoor Voltage Transformers are available at 5-25 kV system voltage and 60-200 kV BIL.

table of indoor voltage transformer product classes
Current Transformers
zoom photo

SUPERBUTE Product Overview: Current Transformers

Outdoor Current Transformers: Outdoor current transformers are available in Bar-Type and Window-Type styles, 5-15 kV, 60 kV-110 kV BIL, up to 4000 A. Outdoor wound-type current transformers (CTs) are available 5-69 kV, 60-350 kV BIL, up to 1200 A. Wound-type units are available in two distinct sizes:

Station class: Station class CT’s have a versatile design that is suitable for metering and/or relaying applications. Units are larger in size, have additional creep distance, and are rated for heavier metering burdens.

Distribution class: Distribution class CT’s are more compact and are designed specifically for maximum efficiency in solid-state revenue metering applications. These CT’s generally do not have a relay rating.

Outdoor current transformers are also available in Bar-Type and Window-Type styles, 5-15 kV, 60 kV-110 kV BIL, up to 4000A.

SUPERBUTE Product Overview: Current Transformers

Indoor Current Transformers: Indoor current transformers are available 5-15 kV system voltage and 60-150 kV BIL. Product types include wound type up to 1200 A, and window-type or bar-type up to 4000 A.

Indoor Current Transformers
Combined CT/VT

SUPERBUTE Product Overview: Combined CT/VT

Outdoor CT/VT combo: Designed for outdoor service, a combination voltage transformer (VT) and current transformer (CT) is typically used for primary metering applications. GE’s RevenueSense™ CT design provides 0.15 accuracy from 1% of rated current through rating factor.

Why a combo unit

  • Safety – fewer HV connections
  • Savings – reduced field labor (1/2 the # of units)
  • Simplification – fewer items to stock

 GE unique features

  • HY-BUTE 60™ Butyl Rubber
  • Dual primary voltage options
  • RevenueSense™ CT (0.15% accuracy down to 1%)
  • Lattice style primary winding VT
  • Proven non-arc tracking design
  • Meets IEEE C57.13-2016 heavy pollution standards

SUPERBUTE Product Overview: Combined CT/VT