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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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Protection & Control

Home > Automation & Protection > Protection & Control > Feeder Protection > 8 Series

  
Multilin 8 Series
Innovative protection and control relay platform

The Multilin™ 8 Series platform of advanced protection and control relays delivers high quality and performance management, protection and control for transformer, generator, motor and feeder applications.

Comprised of the 845 transformer protection relays, 889 generator protection relays, 869 motor protection relays and 850 feeder protection relays, the 8 Series platform features innovative technology and design, as well as uncompromising service and support.

With support for industry leading communications protocols and technologies, the Multilin 8 Series platform provides easy integration into new or existing SCADA or DCS for enhanced situational awareness.

GE Advantage
Platform Overview
Applications
Monitoring & Diagnostics
Communications & Cyber Security
Software
Multilin 8 series product explorer

Platform Overview

The Multilin 8 Series platform delivers the highest level of quality, reliability and performance with…

Innovative Technology & Design

  • Patented environmental monitoring and diagnostics helps visibility on change in environmental parameters
  • Advanced, flexible and embedded communications: IEC® 61850 Ed2, IEC 62439/PRP, Modbus® RTU & TCP/IP, DNP3.0, IEC 60870-5-104, IEC 60870-5-103
  • Single setup and configuration across the platform
  • Field swappable power supply
  • Draw-out design simplifies testing, commissioning and maintenance, thereby increasing process uptime
  • Optional Wi-Fi connectivity minimizes system configuration and provides safe relay programming and diagnostic retrieval
  • Elimination of electrolytic capacitors

Exceptional Quality & Reliability

  • IPC A-610-E Class 3 Manufacturing standards – highest industry standards for electronic manufacturing
  • Highest reliability standards for electronics testing
  • Environmental Stress Screening and full functional testing
  • Rated for IP54 applications
  • Standard Harsh Conformal Coating

Uncompromising Service & Support

  • Covered under GE’s 10 year warranty plan
  • Fully designed, tested and assembled at GE facilities
8 series exploded view

Multilin 8 Series Platform Application Examples

Multilin 8 Series Platform Application Examples
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Monitoring & Diagnostics

The Multilin 8 Series platform features a number of robust capabilities for motor, transformer, generator and feeder monitoring and diagnostics.

869 Motor Monitoring & Diagnostics

Motor Monitoring & Diagnostics

Integrated, cost effective motor monitoring and diagnostics are available in the Multilin 869 motor protection relay. Existing relay data is leveraged to detect electrical, thermal or mechanical abnormalities before they become critical motor failures. Motor monitoring and diagnostic capabilities include:

  • Advanced monitoring and trending for condition-based status of electrical conditions that can affect motor performance
  • Continuous, proactive monitoring of thermal capacity used for early identification of thermal stresses
  • Electrical signal analysis and motor current signature analysis to identify common mechanical abnormalities
845 Transformer Monitoring & Diagnostics

Transformer Monitoring & Diagnostics

Integrated electrical and dissolved gas analysis (DGA) for comprehensive transformer monitoring and diagnostics is available with the Multilin 845 transformer protection relay. The 845 provides advanced notification of potential issues before they become critical, and features detailed learned data, summarized pre/post-fault records, and integration with GE’s DGA devices to collect, trend, and analyze a transformer’s fault gases. This enables operators to minimize costly unplanned outages and equipment failures.

889 Generator Monitoring & Diagnostics

Generator Monitoring & Diagnostics

The Multilin 889 generator protection relay provides comprehensive generator monitoring and diagnostics, including a generator health report that provides an easy-to-read snapshot of a generator's health and operating condition. Based on graphical representation and trend values of the generator historical data, the 889 enables operators and asset managers to identify process issues and maintenance requirements before damage occurs and costly repairs are required.

850 Feeder Monitoring & Diagnostics

Feeder Monitoring & Diagnostics

Feeder and breaker health monitoring and diagnostics are available in the Multilin 850 feeder protection relay. The 850 provides high accuracy metering and recording for all AC signals. Voltage, current, and power metering are built into the relay as a standard feature. Current and voltage parameters are available as total RMS magnitude, and as fundamental frequency magnitude and angle. The 850 also delivers comprehensive data logging, trip and close circuit monitoring elements, and a breaker arcing current element.

Communications

The 8 Series provides advanced communications technologies for remote data and engineering access, making it easy and flexible to use and integrate into new and existing infrastructures. Direct support for copper/fiber optic Ethernet provides high-bandwidth communications allowing for low-latency controls and high-speed file transfers of relay fault and event record information. The 8 Series also supports two independent IP addresses providing high flexibility for the most challenging of communication networks.

Providing several Ethernet and serial port options and supporting the widest range of industry standard protocols, the 8 Series enables easy, direct integration into DCS and SCADA systems. The 8 Series supports the following protocols:

  • IEC 61850 (8 Clients, 4 Logical Devices, Tx & Rx expansion, Analog GOOSE), IEC 62439 / PRP
  • DNP 3.0 serial, DNP 3.0 TCP/IP, IEC 60870-5-103, IEC 60870-5-104
  • Modbus RTU, Modbus TCP/IP

The 8 Series has two interfaces as USB front port and Wi-Fi for ease of access to the relay.

  • Simplify set-up and configuration
  • Simplify diagnostic retrieval
  • Eliminate personnel in front of switchgear
  • WPA-2 security
8 series communications

Cyber Security

The Multilin 8 Series platform relays feature cyber security capabilities that enable the devices to deliver full cyber security data classification by security level using statures that help operators to comply with NERC CIP guidelines and regulations.

AAA Server Support (Radius/LDAP)

Enables integration with centrally managed authentication and accounting of all user activities and uses modern industry best practices and standards that meet and exceed NERC CIP requirements for authentication and password management.

Role Based Access Control (RBAC)

Efficiently administrate users and roles within UR devices. The new and advanced access functions allow users to configure up to five roles for up to eight configurable users with independent passwords. The standard “Remote Authentication Dial In User Service” (Radius) is used for authentication.

Event Recorder (Syslog for SEM)

Capture all cyber security related events within a SOE element (login, logout, invalid password attempts, remote/local access, user in session, settings change, FW update, etc), in standard Syslog data format. This will enable integration with established SEM (Security Event Management) systems.

8 series cyber security

Software & Configuration

The EnerVista™ suite is an industry-leading set of software programs that simplifies every aspect of using the Multilin 8 Series relays. EnerVista provides all the tools to monitor the status of the protected asset, maintain the device and integrate the information measured by the Multilin 8 Series, into SCADA or DCS process control systems. The ability to easily view sequence of events is an integral part of the setup software, as postmortem event analysis is critical to proper system management.

The setup tools within EnerVista Launchpad allow for the configuration of devices in real-time, by communicating via serial, Ethernet or modem connections, or offline by creating device setting files to be sent to devices at a later time.

Learn more about EnerVista Software.

8 Series Setup Software

8 Series Setup Software is single setup and configuration tool across the platform and can reduce device setup and configuration time.

850 set up

Simplified Setup & On-Going Maintenance