For a bus-section disconnector, these conditions from the A1 busbar section are valid:
189OPTR (bay 1/sect.A1)
S1DC_OP
VPS1_DC
EXDU_BB
en04000494_ansi.vsd
AND
189OPTR (bay n/sect.A1)
. . .
. . .
. . .
VP189TR (bay 1/sect.A1)
VP189TR (bay n/sect.A1)
EXDU_BB (bay 1/sect.A1)
EXDU_BB (bay n/sect.A1)
. . .
. . .
. . .
. . .
. . .
. . .
AND
AND
ANSI04000494 V1 EN-US
Figure 341: Signals from any bays in section A1 to a bus-section disconnector
For a bus-section disconnector, these conditions from the A2 busbar section are valid:
en04000495_ansi.vsd
189OPTR (bay 1/sect.A2)
S2DC_OP
VPS2_DC
EXDU_BB
189OPTR (bay n/sect.A2)
. . .
. . .
. . .
VP189TR (bay 1/sect.A2)
VP189TR (bay n/sect.A2)
VPDCTR (A2/A3)
EXDU_BB (bay n/sect.A2)
. . .
. . .
. . .
. . .
. . .
. . .
AND
DCOPTR (A2/A3)
EXDU_BB (bay 1/sect.A2)
EXDU_DC (A2/A3)
AND
AND
ANSI04000495 V1 EN-US
Figure 342: Signals from any bays in section A2 to a bus-section disconnector
For a bus-section disconnector, these conditions from the B1 busbar section are valid:
1MRK 504 163-UUS A Section 15
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Transformer protection RET670 2.2 ANSI 739
Application manual
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