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The power is turned on at the voltage
waveform peak (128.9V) and the generated
transient overvoltage is 103.1V in the negative
direction.
Voltage and Current Waveforms When Turning On the Fluorescent Light
When transient overvoltage occurs, a high
current flows instantaneously.
This example is measured by using a 10-turn
coil without a CT ratio setting.
The screen shot on the left shows that
0.9602A of current flowed instantaneously to
the negative direction.