ABB Relion 670 series - Signals from Bus-Coupler

189
289
189G
289G
WA1 (A)
WA2 (B)
389G
489G
489389
252 and 489G are not
used in this interlocking
AB_TRAFO
en04000515_ansi.vsd
252
152
ANSI04000515 V1 EN
Figure 334: Switchyard layout AB_TRAFO (3)
The signals from other bays connected to the module AB_TRAFO are described below.
15.4.4.2 Signals from bus-coupler
If the busbar is divided by bus-section disconnectors into bus-sections, the busbar-busbar
connection could exist via the bus-section disconnector and bus-coupler within the other
bus-section.
1MRK 506 369-UUS - Section 15
Control
Line distance protection REL670 2.2 ANSI 713
Application manual