This model demonstrates the correct
behaviour of a tap-changer logic of type MAX by directly prescribing the moniitoring
conditions valueUnderStop,
valueAboveMax as functions of
time. The logic starts
with tap changer in position 10.
valueAboveMax becomes true t=1,
and becomes false at t=10, while valueUnderStop becomes true at
t=15.5.
Locked signal is active in t = [5, 8] interval.
According to the defined time lag intervals (3 second for
first tap, 1 second for subsequent taps), the tap starts to
decrease at t=4 (i.e. 3 seconds after the monitored value raises
above MAX), then stays frozen until t=8 because the locked signal
becomes active.
After the locked signal disappears (t=8) and 3 seconds are
elapsed (lag for first tap) the tap restarts to decrease, one tap
per second, until the Stop is reached.