screen-shot-2017-01-26-at-8-12-28-amVoltage fluctuations on power supplies have adverse effects on connected loads. These can either be overvoltage or undervoltage. These are caused by several phenomena such as voltage surges, lightning, overload among others. When the input voltage exceeds the rated values, this causes insulation damage that leads to short circuits. Undervoltage, on the other hand, causes overloading of the equipment leading to lamp flickers and inefficient performance of the equipment. Thus, it is necessary to protect the loads from undervoltage and overvoltage. Read more

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