ABB Relion 670 Series Applications Manual page 363

1MRK 511 401-UEN Rev. K
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IEC05000118 V2 EN-US
Figure 161: Application principles for reservation with external wiring
The solution in Figure
example in Figure 162. The solutions in Figure
security compared to the solution in Figure 160, but instead have a higher availability, since no
acknowledgment is required.
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. . .
IEC05000178 V3 EN-US
Figure 162: Application principle for an alternative reservation solution
15.3.8 Interaction between modules
A typical bay with apparatus control function consists of a combination of logical nodes or
functions that are described here:
• The Switch controller (SCSWI) initializes all operations for one apparatus. It is the
command interface of the apparatus. It includes the position reporting as well as the
control of the position
• The Circuit breaker (SXCBR) is the process interface to the circuit breaker for the
apparatus control function.
• The Circuit switch (SXSWI) is the process interface to the disconnector or the earthing
switch for the apparatus control function.
• The Bay control (QCBAY) fulfils the bay-level functions for the apparatuses, such as
operator place selection and blockings for the complete bay.
• The Reservation (QCRSV) deals with the reservation function.
Bay control REC670
Application manual
BI
BO
161 can also be realized over the station bus according to the application
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IntlReceive
RESGRANT
IntlReceive
RESGRANT
© Copyright 2017 Hitachi Power Grids. All rights reserved
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SCSWI
RES_EXT
SELECTED
Other SCSWI in the bay
BI
161 and Figure
SCSWI
RES_EXT
SELECTED
Other SCWI in
the bay
Station bus
OR
BO
+
en05000118.vsd
162 do not have the same high
SPGAPC
OR
IN
IEC05000178-3-en.vsd
Section 15
Control
M16626-3 v10
357