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Protection for digital substations

High-performance protection makes your power supply future-proof

Protection is essential for network operators, electricity suppliers, and industrial enterprises in every sector. For over 100 years, Siemens has been offering successful and always innovative protection technologies. This means long-term user satisfaction with the products and solutions, with services, and with a partnership with a genuine global player. Siemens is the ideal partner for overcoming the challenges of the digital future.

Highlights, technical applications and product updates for substation automation and protection engineers.

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Protection products - Secure and efficient network operation

SIPROTEC 5

SIPROTEC 5

With modularly designed hardware and software and its high-performance DIGSI 5 engineering tool, the SIPROTEC 5 product family of field devices is perfect for protection, control, monitoring, and measuring applications in electrical energy systems. SIPROTEC 5 offers a wide product range with modular elements for every application and requirement.

REYROLLE 5

REYROLLE 5

REYROLLE 5

The protection, control, monitoring and measuring of our power networks is a vital element in managing our electrical assets, increasing reliability, sustainability and the safety of operating personnel. Our goal is to provide protection devices which provide flexible solutions and easy integration into an energy market which is becoming increasingly decentralized and digitalized.

REYROLLE

REYROLLE

We are committed to high technology development and manufacture with full use of the latest software at all stages of product development, manufacture and testing. This can be seen in the latest digital products that REYROLLE offer and is continuing with new innovations as part of the Siemens group.

Protective Relays and Control - SIPROTEC Compact Products and Downloads

SIPROTEC Compact

SIPROTEC Compact

Perfectly suited for protection in distribution systems and industry, with minimal space requirement SIPROTEC Compact devices provide a comprehensive range of functions in a surprisingly compact and space-saving housing. Whether as main or as backup protection, a single SIPROTEC Compact device provides protection functionality for every conceivable fault. And it can do even more – it supports the control, automation, and monitoring functions in the substation.

SIPROTEC 4

SIPROTEC 4

SIPROTEC 4 leads the way in integrating protection, control, measurement, and automation functions in one device. The homogenous system platform, the unique DIGSI 4 engineering program, and extensive experience of more than a million successfully operating devices in the field worldwide – thanks to these unique advantages, SIPROTEC 4 enjoys top recognition among users worldwide.

Software

Software

SIPROTEC and REYROLLE devices can be simply, reliably and safely engineered, adjusted, controlled, automated and evaluated with state-of-the art software.

Accessories

Accessories

Siemens offers a comprehensive selection of accessories for its protection technology products. This allows further expansion of the application possibilities and the performance.

Easy Protection Device Selector

Easy Protection Device Selector

This tool gives a quick guidance to find a protection device of SIPROTEC 5, SIPROTEC 4, SIPROTEC Compact, Reyrolle which would fit your needs.

Easy Protection Device Selector

Highest availability even in harsh environment

SIPROTEC 5 and SIPROTEC Compact – Conformal Coating as standard

The new coating feature provides an additional level of protection for SIPROTEC devices used in extremely harsh environmental conditions.

Learn more about conformal coating

Topics and applications

General protection

Protection solutions with SIPROTEC and Reyrolle

For over a century, innovative protection relay and control technology from Siemens has ensured a reliable power supply as well as secure and efficient grid operations. The comprehensive range of products and solutions meets all conceivable requirements.

 

Learn more

SIPROTEC 5

Modular, flexible, intelligent

With SIPROTEC 5, Siemens is offering the most comprehensive protection portfolio in the industry.

SIPROTEC 5 sets the benchmark for protecting, automating, and monitoring your network. As an incomparably modular, flexible generation of intelligent digital field devices, SIPROTEC 5 offers a comprehensive product family with modular elements for every application and requirement that can be precisely configured to your application.

SIPROTEC 5 delivers maximum protection and flexibility throughout the entire lifecycle. Take advantage of the leading provider in the field of protection, a global partner that supports you every step of the way.

Learn more about SIPROTEC 5

Online configurator

Design your perfect solution with SIPROTEC 5 using our online configurator. You’ll have your solution of choice, in just a few mouse clicks.

Online configurator

Reyrolle Protection Relays

Protection Relay and Control technology

Reyrolle continues its tradition of quality protection relays and control devices.

Uncompromising to achieve maximum performance: We are committed to high technology development and manufacture with full use of the latest software at all stages of product development, manufacture, and testing. This can be seen in the latest digital products that Reyrolle offers and is continuing with new innovations as part of Siemens.

Learn more about Reyrolle protective relays

Innovation highlights

Performance that moves you forward

A new flexible generation of innovative and intelligent field devices. Learn more about how SIPROTEC 5 can support you in your work.
Designed to communicate
Holistic Workflow
IEC 61850 – simply usable
Perfectly tailored fit
Safety and security inside
Smart Automation for grids
Other highlights

Protection devices for your success

For over a century, innovative protection relay and control technology from Siemens has ensured a reliable power supply as well as secure and efficient grid operations. The comprehensive range of products and solutions meets all conceivable requirements. Here are some examples.

Arc Protection

Arc fault protection is a relatively new technique employed for the fast clearance of arcing faults on busbars and within metal clad switchgear & associated cable boxes. The arc is detected using an optical sensor & the signal input to a protection device which also monitors the load current on the system. Conventional current based protection techniques are at times challenged by the nature of arcing faults, and can result in slow protection clearance times. Slow protection clearance times increase the risk to nearby personnel and increase the degree of damage to plant and equipment. By employing an optical detection technique, Arc Fault Protection results in fast clearance of arcing faults.

Engineering Software DIGSI 5

DIGSI 5 is the versatile engineering tool for parameterization, commissioning and operating all SIPROTEC 5 devices. Its innovative user interface includes context-sensitive user instructions. Simple connection to the device via USB enables you to work with a device easily and efficiently. The full capabilities of DIGSI 5 are revealed when you connect it to a network of protection devices: Then you can work with all of the devices in a substation in one project.

DIGSI 5 offers superior usability and is optimized for your work processes. Only the information you actually need to carry out your tasks is shown. These can be reduced further using expanded filter mechanisms. The consistent use of sophisticated, uniform mechanisms in the user interfaces requires less training.

References

Protection technology – proven worldwide

EPCOR
Edmonton
Canada

Cutting costs with process bus technology

  • EPCOR reduces the operating costs of its substation

  • Use of process bus technology based on IEC 61850-9-2

  • Experience from this pilot project helps with additional implementations

Learn more
Panama II substation
Pancora
Panama

Lower costs, more flexibility

  • Adaption of the distribution grid to rapidly increasing power consumption

  • This includes the modernization of one of the largest substations in the country

  • Rugged solution based on IEC 61850 reduces the operating costs and increases flexibility

Learn more
Red Eléctrica del Sur S.A.
Arequipa
Peru

Greater stability in the Peruvian grid

  • Implementation of digital fault recorders in transmission lines of more than 100 kV

  • Effective interaction of SIPROTEC 7KE85 and the SICAM PQS software

  • Greater grid stability thanks to improved monitoring of the energy value chain

Learn more
Rheinische NETZGesellschaft mbH
Cologne
Germany

Smart grid expansion

  • Retention of and further improvement to the security of supply

  • Flexible adjustment and expansion options via decentralized automation and control units

  • Tested alternatives to conventional grid expansion reduce investment costs 

Learn more
Downloads

Here you will find all downloads for your product

News & Media

Get the latest information.

You’ll find interesting news and information that’s always being updated.
Customer Support Center

Customer Support Center

The Customer Support Center (CSC) from Siemens for all inquiries in the field of power and energy. We offer competent, reliable and prompt customer support, worldwide, 24 hours a day in English and German.

Siemens Power Academy TD

Siemens Power Academy TD

Professional training in the area of power transmission and distribution, from beginner to experts.

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