AUTOMATIC
VOLTAGE CONTROL
[Film Technology]
[Film Technology]
[In
generator] Automatic
voltage regulation(AVR) ensures that
variations in the power drawn from a supply do not cause changes in the supply
voltage. Without such control, increasing power loads can cause the line
voltage to fall; or to rise rapidly (surge) when
an appreciable load is removed- possibly burning out(blowing)
remaining lamps. Unregulated power sources are load conscious, their voltage
dropping as power consumption increases (this results in progressively lower
light out-put from each lamp, and falling colour
temperature). Great care is needed when load
shedding (switching off) as voltage can
suddenly rise and burn out any lamps remaining lit (mechanical
governors on generators or automatic
voltage control can alleviate this problem).
e-mail : pratheepvasudev@gmail.com
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