ABB Relion 670 series - Interlocking for line bay ABC_LINE (3); Introduction

Table 374: DB_BUS_B (3) Output signals
Name Type Description
QA2CLREL BOOLEAN Closing of 252 is allowed
QA2CLITL BOOLEAN Closing of 252 is not allowed
QB62REL BOOLEAN Switching of 6289 is allowed
QB62ITL BOOLEAN Switching of 6289 is not allowed
QB2REL BOOLEAN Switching of 289 is allowed
QB2ITL BOOLEAN Switching of 289 is not allowed
QC4REL BOOLEAN Switching of 489G is allowed
QC4ITL BOOLEAN Switching of 489G is not allowed
QC5REL BOOLEAN Switching of 589G is allowed
QC5ITL BOOLEAN Switching of 589G is not allowed
QB2OPTR BOOLEAN 289 is in open position
QB2CLTR BOOLEAN 289 is in closed position
VPQB2TR BOOLEAN Switch status of 289 is valid (open or closed)
12.4.10 Interlocking for line bay ABC_LINE (3)
12.4.10.1 Introduction
The interlocking for line bay (ABC_LINE, 3) function is used for a line connected to a
double busbar arrangement with a transfer busbar according to figure 373. The
function can also be used for a double busbar arrangement without transfer busbar or a
single busbar arrangement with/without transfer busbar.
Section 12 1MRK505222-UUS C
Control
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Technical reference manual