Edition 7.1

Publisher Siemens Aktiengesellschaft Energy Sector Freyeslebenstrasse 1 91058 Erlangen, Germany www.siemens.com/energy Infrastructure & Cities Sector Wittelsbacherplatz 2 80333 Munich, Germany www.siemens.com/infrastructure-cities Publishing House: Publicis Pro, Erlangen, Germany DTP: Mario Willms Publicis Pro, Erlangen, Germany Edition 7.1 © 2014 by Siemens Aktiengesellschaft Munich and Berlin, Germany. — This updated edition of the well-known Power Engineering Guide is a manual for everyone involved in the generation, transmission and distribution of electrical energy – from system planning, to implementation and control. This guide is designed to assist and support engineers, technicians, planners and advisors, as well as students, trainees and teachers of electrical engineering and energy technology. Guide covers the entire portfolio of Siemens products for the transmission and distribution of electrical power – including high, medium and low voltage, switching substations, transformers and switchgear, and is organized by product and function. It also covers solutions in the areas of Smart Grids: energy automation, energy management and network communication, as well as service and support. Key terms and abbreviations are explained in a handy appendix, and Internet addresses are provided for additional in-depth information. Siemens AG is a global leader in electronics and electrical engineering. Siemens products, systems and integrated, complete solutions benefit customers by meeting a wide variety of local requirements. They represent the key technologies of the future and set global standards. — Contents Smart Grids and the New Age of Energy Power Transmission and Distribution Solutions Switchgear and Substations Products and Devices Transformers Protection, Substation Automation, Power Quality and Measurement Energy Management Communication Network Solutions for Smart Grids Power System Analysis and Planning Services & Support Glossary Abbreviations, Trademarks