ABB REG670 - Interlocking for Bus-Coupler Bay ABC_BC

by setting the appropriate module inputs as follows. In the functional block diagram,
0 and 1 are designated 0=FALSE and 1=TRUE:
• QB7_OP = 1
• QB7_CL = 0
• QC71_OP = 1
• QC71_CL = 0
• BB7_D_OP = 1
• BC_17_OP = 1
• BC_17_CL = 0
• BC_27_OP = 1
• BC_27_CL = 0
• EXDU_BPB = 1
• VP_BB7_D = 1
• VP_BC_17 = 1
• VP_BC_27 = 1
If there is no second busbar WA2 and therefore no QB2 disconnector, then the
interlocking for QB2 is not used. The state for QB2, QC21, BC_12, BC_27 are set to
open by setting the appropriate module inputs as follows. In the functional block
diagram, 0 and 1 are designated 0=FALSE and 1=TRUE:
• QB2_OP = 1
• QB2_CL = 0
• QC21_OP = 1
• QC21_CL = 0
• BC_12_CL = 0
• BC_27_OP = 1
• BC_27_CL = 0
• VP_BC_12 = 1
15.3.3 Interlocking for bus-coupler bay ABC_BC
Section 15 1MRK 502 071-UEN -
Control
520 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual