Introduction
The device family SIPROTEC 7SJ80 devices is introduced in this section. An overview of the devices is
presented in their application, characteristics, and scope of functions.
1.1 Overall Operation 20
1.2 Application Scope 22
1.3 Characteristics 24
1
SIPROTEC 4, 7SJ80, Manual 19
E50417-G1140-C343-A8, Edition 12.2017