CURRENT-LIMITING FUSES IMPROVE POWER QUALITY:Voltage sags (sometimes called voltage dips) in power networks due to power system shortcircuitfaults can cause serious problems for computer systems, adjustable-speed drives, andother industrial and domestic systems [1,2]. The cost of maloperation of equipment anddowntime is becoming increasingly important. A recent study showed that major industrial users in South Africa suffer annual losses of more than $200 million due to voltage sags .
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