• The logical node Interlocking (SCILO, 3) 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 (3).
• The Synchronism, energizing check, and synchronizing (SESRSYN, 25) calculates
and compares the voltage phasor difference from both sides of an open breaker
with predefined switching conditions (synchronism check). 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
237 below.
Section 3 1MRK504116-UUS C
IED application
610
Application manual
To Next Page
Loading...
