• The Autorecloser (SMBRREC) consists of the facilities to automatically close a
tripped breaker with respect to a number of configurable conditions.
• The logical node Interlocking (SCILO) provides the information to SCSWI
whether it is permitted to operate due to the switchyard topology. The
interlocking conditions are evaluated with separate logic and connected to
SCILO .
• The Synchrocheck, energizing check, and synchronizing (SESRSYN) calculates
and compares the voltage phasor difference from both sides of an open breaker
with predefined switching conditions (synchrocheck). Also the case that one side
is dead (energizing-check) is included.
• The logical node Generic Automatic Process Control, GAPC, is an automatic
function that reduces the interaction between the operator and the system. With
one command, the operator can start a sequence that will end with a connection
of a process object (for example a line) to one of the possible busbars.
The overview of the interaction between these functions is shown in figure
97 below.
Section 10 1MRK 505 291-UEN A
Control
234
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