ABB Relion 670 series - Page 735

189OPTR (bay 1/sect.A2)
BB_DC_OP
VP_BB_DC
EXDU_BB
en04000507_ansi.vsd
189OPTR (bay n/sect.A2)
. . .
. . .
. . .
VP189TR (bay 1/sect.A2)
VP189TR (bay n/sect.A2)
VPDCTR (A1/A2)
EXDU_BB (bay n/sect.A2)
. . .
. . .
. . .
. . .
. . .
. . .
AND
DCOPTR (A1/A2)
EXDU_BB (bay 1/sect.A2)
EXDU_DC (A1/A2)
AND
AND
ANSI04000507 V1 EN
Figure 355: Signals from any bays in section A2 to a busbar grounding switch in the
same section
For a busbar grounding switch, these conditions from the B1 busbar section are valid:
1MRK 506 369-UUS - Section 15
Control
Line distance protection REL670 2.2 ANSI 729
Application manual