Most power systems in the electrical field experience overvoltage and therefore require protection from voltage spikes, especially those that involve inductors and capacitors. These transients are usually caused by circuit breakers that have tripped, power outages, inadequate insulation strength in power systems, short circuits, transition of power in large equipment working on the same line, lightning strikes, as well as in unprotected transformers, among others (Jacks, 1975, p. 231).To combat such damages, the following methods are usually employed, designing equipment capable of tolerating such abnormal overvoltage or by use of lightning arresters or power surge.
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