ABB REB670 Applications Manual page 348
Busbar protection 2.1 ansi, relion 670 series
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Also See for REB670:
- Applications manual (554 pages) ,
- Commissioning manual (196 pages) ,
- Operator's manual (116 pages)
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Section 12
Control
342
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 disconnector
A1A2_DC and B1B2_DC.
Signal
DCOPTR
The bus-section disconnector is open.
DCCLTR
The bus-section disconnector is closed.
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 the busbar is divided by bus-section circuit breakers, the signals from the bus-section
coupler bay (A1A2_BS), rather than the bus-section disconnector bay (A1A2_DC) must
be used. For B1B2_BS, corresponding signals from busbar B are used. The same type of
module (A1A2_BS) is used for different busbars, that is, for both bus-section circuit
breakers A1A2_BS and B1B2_BS.
Signal
S1S2OPTR
No bus-section coupler connection between bus-sections 1 and 2.
S1S2CLTR
A bus-section coupler connection exists between bus-sections 1 and 2.
VPS1S2TR
The switch status of bus-section coupler BS is valid.
EXDU_BS
No transmission error from the bay that contains the above information.
For a line bay in section 1, these conditions are valid:
1MRK 505 337-UUS -
Application manual
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