ABB Relion 650 Series Applications Manual page 141

1MRK 505 287-UUS B
IEC13000016 V1 EN-US
Figure 53: APC - Local remote function block
10.2.3 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 and performs the
actual switching and is more or less the interface to the drive of one apparatus. It includes the
position handling 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 grounding
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 function (SELGGIO), deals with reservation of the bay.
• The Four step overcurrent protection (OC4PTOC, 51/67) trips the breaker.
• The Protection trip logic (SMPPTRC, 94) connects the "trip" outputs of one or more protection
functions to a common "trip" to be transmitted to SXCBR.
• The Autorecloser (SMBRREC, 79) consists of the facilities to automatically close a tripped
breaker with respect to a number of configurable conditions.
Busbar protection REB650
Application manual
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IEC13000016-1-en.vsd
Section 10
Control
M16626-3 v5
135