Protection, control and monitoring Intelligent Electronic Devices | Hitachi Energy

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Substation Automation Protection and Control

Hitachi Energy’s widest range of products for the protection, control, measurement, and supervision of power systems is designed to ensure interoperable, easy-to-engineer, and future-proof solutions.

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Power system protection and control

Hitachi Energy’s intelligent electronic devices (IEDs) are leading the future of transmission and distribution energy protection and control operations and applications.

Your benefits include:

IEC 61850 Ed. 2.1 compliant
Robust security management
Easy-to-use built-in HMI
Enable safe, reliable, and sustainable grid

Our Offering

With our advanced technology, global application knowledge, and experienced support network, you can be confident that your system performs reliably – in any situation. In fact, our IEDs, as well as their protection and control management tool (PCM600), comply with the most stringent international standards like IEC 61850.

Relion 670 series

The 670 series protection and control Intelligent Electronic Devices (IEDs) provide versatile functionality, maximum flexibility, and performance to meet the highest application requirements.

Relion REF650 multi-application feeder protection and control

REF650 is an advanced medium-voltage protection and control relay for feeders and two-winding transformers to support distribution system operators and industrial facilities.

SAM600 Process Interface Unit

Meet the SAM600 version 3.0 process interface unit, our new flagship merging and switchgear control unit for digital substations. One easy-to-use box provides you with ultimate flexibility. Get ready to unlock the benefits of digital.

Relion REB500 Distributed busbar protection

The IEC 61850 enabled REB500 IED is designed to support different protection philosophies.

PS640 Series Medium-voltage Protection Relays

Hitachi Energy’s PSF640 is designed for the protection, control, measurement, and supervision of utility distribution substations and industrial power systems feeders. This includes grounded, non-grounded, resistance-grounded, or compensated grounded networks with or without distributed power generation.

Disturbance Recording

A disturbance recording application is characterized by great flexibility of the configuration, starting conditions, resolution and storage capacity. Read more!

Relion 650 series

The Relion 650 series Intelligent Electronic Devices (IEDs) have a number of useful features, like a significantly reduced number of parameter settings and extended IED HMI functionality.

For information on legacy products, please visit our Legacy portfolio page.

Protect and control your grid. Anywhere and everywhere.

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Bay Control

Hitachi Energy's range of bay control IEDs provides versatile control & backup protection for circuit-breakers, disconnectors and earthing switches in any kind.

Generator Circuit-breaker for power plants

Breaker Protection

Hitachi Energy's range of breakers runs from the compact to the comprehensive, offering protection in flexible form factors suited to every application.

Aerial view of a high voltage substation.

Busbar Protection

Hitachi Energy’s range of busbar IEDs (Intelligent Electronic Devices) provide versatile management of busbar installations with models focused on distributed protection.

Hydro electric Electricity power plant - powerplant waterfall over dam after storm

Generator Protection

Hitachi Energy offers a complete portfolio of generator protection solutions for all types of generators and generator-transformers with IEC 61850 standard.

Line Differential Protection

An alternative principle for line protection that is quickly becoming the norm is differential protection.

Picture of an electrical engineer standing and watching at the electric power station to view the planning work by producing electricity at high voltage electricity poles.

Line Distance Protection

Line distance protection is reliable, fast and largely manages to eliminate the variable system quantities of load and supply out of the protection calculation.

Railway application

Rapid urbanization plus the urgent need to reduce carbon dioxide emissions are driving substantial new interest and investment in the transportation sector.

Transformer protection and control

Our transformer protection is built on IEC 61850 and showcases Hitachi Energy's leading-edge technology and application experience.

Feeder protection and control

Feeder protection plays a key role, enabling operators to prevent damage to equipment, minimize power outages, and ensure a reliable supply of electricity in medium-voltage distribution utility and industrial networks.

Digital Substations

Digital substation technology is applicable for new and retrofit installations of air and gas-insulated switchgear substations. Learn more.

Modular relays and accessories

Your flexible and reliable protection solutions for power systems.

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PCM600 - Protection and control IED manager

PCM600 is an easy-to-handle tool which provides versatile functionalities throughout the life cycle of Hitachi Energy’s protection and control intelligent electronic devices.

Partner portals and training resources

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