A Appendix
Interlocking with
Standard interlocking for three switching devices (52, Disc. and GndSw):
7SJ63/64
Figure A-100
Standard interlocking for circuit breaker, disconnector and ground switch
639
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015