Interlocking For Transformer Bay Ab_Trafo (3); Application - ABB REB670 Applications Manual

Section 12
Control
12.4.4
12.4.4.1
350
setting the appropriate module inputs as follows. In the functional block diagram, 0 and 1
are designated 0=FALSE and 1=TRUE:
• 289_OP = 1
• 289_CL = 0
• 789_OP = 1
• 789_CL = 0
• 7189G_OP = 1
• 7189G_CL = 0
If there is no second busbar B and therefore no 289 and 2089 disconnectors, then the
interlocking for 289 and 2089 are not used. The states for 289, 2089, 2189G, BC_12,
BBTR 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:
• 289_OP = 1
• 289_CL = 0
• 2089_OP = 1
• 2089_CL = 0
• 2189G_OP = 1
• 2189G_CL = 0
• BC_12_CL = 0
• VP_BC_12 = 1
• BBTR_OP = 1
• VP_BBTR = 1

Interlocking for transformer bay AB_TRAFO (3)

Application

The interlocking for transformer bay (AB_TRAFO, 3) function is used for a transformer
bay connected to a double busbar arrangement according to figure 138. The function is
used when there is no disconnector between circuit breaker and transformer. Otherwise,
the interlocking for line bay (ABC_LINE, 3) function can be used. This function can also
be used in single busbar arrangements.
1MRK 505 337-UUS -
Application manual