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Upon the receipt of the trigger, the ac source
continues to output a 120 Vrms, 60 Hz sinewave
for 5 seconds. After the 5-second trigger delay,
the rms voltage drops to 0 Vrms at 80° of the
cycle and then rises back to 120 Vrms (0.001389
seconds later) at 110° of the cycle.
Variations on this implementation
1. The Pulse width can be increased to simulate
full cycle dropouts.
2. The Pulse count can be set to a value >1 and
the Pulse period can be programmed to 0.01667
seconds (the period of a 60 Hz sinewave) to
create multiple dropouts.
3. The triggered level of the rms voltage can be set
higher than the initial setting of 120 Vrms to
simulate a voltage surge.
4. The rms voltage slew rate can be programmed
in Pulse mode to simulate a gradual brown out
(sag) condition versus an abrupt dropout. The
Pulse width can be increased to simulate a sag
over multiple ac line cycles.
Timing Diagram of Application 1