Preface
 
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
4
Additional Support
Should further information on the System SIPROTEC 4 be desired or should particular problems arise which 
are not covered sufficiently for the purchaser's purpose, the matter should be referred to the local Siemens rep-
resentative.
Our Customer Support Center provides a 24-hour service. 
Telephone: +49 (180) 524-7000
Fax: +49 (180) 524-2471
e-mail: support.energy@siemens.com 
Training Courses
Enquiries regarding individual training courses should be addressed to our Training Center: 
Siemens AG 
Siemens Power Academy TD
Humboldt Street 59 
90459 Nuremberg 
Telephone: +49 (911) 433-7005 
Fax: +49 (911) 433-7929 
Internet: www.siemens.com/power-academy-td 
Additional Standards
IEEE C37.90 (see Chapter 4 "Technical Data")
This product is UL-certfied with the values as stated in the Technical Data.
file E194016