![background image](http://html1.mh-extra.com/html/abb/relion-670-series/relion-670-series_applications-manual_3052129572.webp)
•
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
14.4.3
Interlocking for bus-coupler bay ABC_BC
IP14144-1 v2
14.4.3.1
Application
M13555-3 v8
The interlocking for bus-coupler bay (ABC_BC) function is used for a bus-coupler bay
connected to a double busbar arrangement according to figure
used for a single busbar arrangement with transfer busbar or double busbar arrangement
without transfer busbar.
Section 14
1MRK 505 343-UEN B
Control
566
Application manual
Summary of Contents for Relion 670 series
Page 1: ...RELION 670 SERIES Line differential protection RED670 Version 2 1 IEC Application manual...
Page 2: ......
Page 40: ...34...
Page 64: ...58...
Page 150: ...144...
Page 406: ...400...
Page 472: ...466...
Page 494: ...488...
Page 512: ...506...
Page 524: ...518...
Page 604: ...598...
Page 686: ...680...
Page 718: ...712...
Page 722: ...716...
Page 758: ...752...
Page 759: ...753...