IEEE Tutorial Voltage Sag Analysis
ISBN: 978-1-4244-6108-0
Year Published: 1999
Pages: 49
Voltage sags are short duration reductions in rms voltage, caused by short circuits and starting or large motors. The interest in voltage sags is due to problems they cause on different equipment.
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Voltage sags are short duration reductions in rms voltage, mainly caused by short circuits and' starting or large motors. The large interest in voltage sags is due to the problems they cause on several types of equipment. Specially adjustable- speed drives, process-control equipment and computers are notorious for their sensitivity. Some pieces of equipment trip when the rms voltage drops below 90% for longer than one or two cycles. Such a piece of equipment will trip, tens of times a year.
