ABB Relion REG670, Applications Manual

Page: 546 / 780

Section 1 Section 2
A1A2_DC(BS)
B1B2_DC(BS)
AB_TRAFO ABC_LINE
BB_ES
ABC_LINE
(WA1)A1
(WA2)B1
(WA7)C C
B2
A2
en04000505.vsd
BB_ES ABC_BC
IEC04000505 V1 EN
Figure 271: Busbars divided by bus-section disconnectors (circuit breakers)
To derive the signals:
Signal
BB_DC_OP All disconnectors on this part of the busbar are open.
VP_BB_DC The switch status of all disconnector on this part of the busbar is valid.
EXDU_BB No transmission error from any bay containing the above information.
These signals from each line bay (ABC_LINE), each transformer bay (AB_TRAFO),
and each bus-coupler bay (ABC_BC) are needed:
Signal
QB1OPTR QB1 is open.
QB2OPTR QB2 is open (AB_TRAFO, ABC_LINE)
QB220OTR QB2 and QB20 are open (ABC_BC)
QB7OPTR QB7 is open.
VPQB1TR The switch status of QB1 is valid.
VPQB2TR The switch status of QB2 is valid.
VQB220TR The switch status of QB2and QB20 is valid.
VPQB7TR The switch status of QB7 is valid.
EXDU_BB No transmission error from the bay that contains the above information.
These signals from each bus-section disconnector bay (A1A2_DC) are also needed.
For B1B2_DC, corresponding signals from busbar B are used. The same type of
module (A1A2_DC) is used for different busbars, that is, for both bus-section
disconnectors A1A2_DC and B1B2_DC.
Signal
DCOPTR The bus-section disconnector is open.
VPDCTR The switch status of bus-section disconnector DC is valid.
EXDU_DC No transmission error from the bay that contains the above information.
If no bus-section disconnector exists, the signal DCOPTR, VPDCTR and EXDU_DC
are set to 1 (TRUE).
Section 15
1MRK 502 071-UEN -
Control
540 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual