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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.

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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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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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GridNode
Interconnection protection solution

Home > Services > Automation & Protection Services > Automation Services > GridNode IPS

  
GridNode Interconnection Protection Solutions

GE offers complete Network Interconnection protection based on System Integrity Protection Schemes (SIPS) solutions for Transmission utilities, and operators to protect the integrity of the interconnected network. These automated solutions with validated application function blocks provide the network real time actions for protecting interconnections and providing network operators with visibility and advanced notifications of impeding interconnected network separation.

Key Benefits

  • Improves system stability – enables interconnection of two power systems for sharing of excess generation.
  • Enhanced reliability – prevents instabilities from cascading to other parts of the interconnected networks.
  • Enables more renewable energy integration – detects and prevents small signal oscillations associated with integration of these new energy resources.

Advantages of GE SIPS

  • Automated network protection solutions
  • Typically 250 millisecond response time
  • Supports complex network topologies
  • Notification to operator of SIPS actions
  • Balances load vs generation upon disturbance situation
  • Advanced visualization tools and HMI for operator interface
Overview
Contingency Solutions
Oscillation Dampening
Project Execution
Components
Use Cases
Overview diagram

Network A interconnected with network B and sharing generation surplus

What are Network Interconnections

Grid Interconnections are found between:

  • Two or more regions
  • Two or more utilities within a region
  • Two or more states or countries

Where one region will have generation surplus and other region may have generation shortfall – interconnecting maintains stability of both the regions

What is the need & growth of Network Interconnection

  • Interconnecting two or more separate power systems improves stability in each system by helping the other balance generation and load.
  • Both systems are now able to share generation and help the other serve load if they experience a generation shortfall.
  • Another benefit of interconnection is to take advantage of lower cost generation sources.
  • Renewable Energy projects are triggering more inter-connections.

GE's SIPS approach

GE offers two approaches for reducing instabilities and overloads on interconnected networks to provide safety and reliability to these networks. These approaches may be combined or used separately.

  • Contingency action solutions
  • Detection and dampening of system oscillations

What are customer challenges & customer objectives with respect to Network Interconnection

Challenges
Outcome
Losing a major line in a network (A) can result in excess generation that may send too much generation and overload the interconnection.
Take contingency actions in network A to drop generation available to reduce exchanging of power to network B
Losing a major generation in a network (A) can result in lack of generation that may draw too much generation and overload the interconnection.
Take contingency actions in network A to shed load to reduce exchanging of power to network B
Large disturbances in a network can cascade to interconnected network causing inter-region oscillations which if grow big enough, can cause both networks to collapse
Detect interconnection oscillations and make attempts to dampen oscillations (trigger damping circuit, shed load, drop generation) or disconnect interconnection if oscillations persist or grow large enough
Overview diagram

Intelligent monitoring devices put across the networks connected
centrally to GridNode controller to execute contingency actions

GE's contingency action solution detects a disturbance in one part of an interconnected network which could result in interconnection overloading or frequency and voltage stability conditions. GE’s solution will take action to remediate these situations by stabilizing the load and generation on the networks thereby protecting the interconnect.

Contingency Action Solutions

  • Detect major changes in any of the connected networks (faults)
  • Measure overload in interconnect and associated voltage and frequency changes
  • Shed load to reduce load on interconnect
  • Drop generation to reduce overvoltage
  • Trip the interconnect
  • Balancing the two networks

Key Characteristics

  • Millisecond response time (typically under 250ms)
  • Supports existing protection and metering devices and protocols
  • Can support complex network topologies (i.e., mesh grids)
  • Provide advanced notice of interconnection trip to operators
  • Available customized HMI
Network Overview Diagram

PMU's detecting oscillations are installed across the networks connected
centrally to GridNode Controller to trigger dampening actions

System oscillations* across an interconnect are caused by a major change (fault) in the connected networks and the associated sources are attempting to compensate to balance the load and generation. If oscillations persist local protections within a network will react to protect the asset and trip the generators offline.

Using synchrophasor, GE's system oscillation remediation solution detects network oscillations and determines if these will heal itself. When it is determined these oscillations will not heal itself, GE's solution will attempt to dampen the oscillations and if needed trip the interconnect.

Detection and dampening of system oscillations

  • Detect prolonged/growing interconnect oscillations
  • Trigger network damping circuits such as Power System Stabilizers (PSS) to dampen oscillations
  • Temporary shed load to dampen large oscillations
  • Temporary drop generation to dampen large oscillations
  • Trip the interconnect

Key Characteristics

  • Millisecond to second response time
  • High speed situational awareness using synchrophasor
  • Can support complex network topologies (i.e., mesh grids)
  • Provide advanced notice of interconnection trip to operators
  • Available customized HMI

*Both system (natural) and forced oscillations

Modernize and extend with custom engineered solutions

Measurement Equipment

Components Diagram

Contingency action solution

  • Protection Relays, Meters
  • Protocols: DNP3, IEC 101/103, Modbus, RGOOSE/GOOSE, Synchrophasor C37.118-1, 61850

Detection and dampening of system oscillations

  • Phasor Measurement Units
  • Protection Relays with PMU capability
  • Synchrophasor C37.118-1 protocol
Measurement Equipment

Communications Equipment

Within a substation

  • Ethernet switches
  • Media/Protocol converters

Wide Area communications

  • SONET multiplexers
  • Ethernet backbone
  • Wireless radios
Communications Equipment

Example of interconnection between the grids using Oscillation Detection

  • First of its interconnect between European grid which had a strong source and a Turkish grid which had a weak source.
  • Due to these differences in the sources any major disturbance in the network will be slow to stabilize resulting in oscillations across the interconnect.

GE's oscillation detection solution monitors the active power flow between Turkey and Bulgaria/Greece.

Upon detection of the oscillation, GE solution will shed up to 1400MW of load across 15 substations located in Istanbul region to dampen the oscillations.

European Network of Transmission System Operators for Electricity

*European Network of Transmission System Operators for Electricity