Question

You work at a subtribution terminal, because of the heavy rain you have in the subheculation. During your stay, I noticed that unprecedented voltage drops occur in the transport line. What can be the reason and how to overcome this issue. Jaw justifies with reasons.

Answer 1

The reason for voltage drop due to heavy rain is that it is the only way a grounding electrode system could ever cause symptoms such as this would be because its energized by any ungrounded conductor, there are no fault path back to the transformer but it is through Earth, addition of heavy rain in the earth cause a lower impedance causing a high load on the service to the point where voltage drops off, but for this to occur there would have to be a few other problems including the lost of the path back to the source of the grounding system. In case of lightning and thunder, complete power shutdown also observed. Sudden drop in the voltage can occur if an animal or a bird sits on a power cable. This accidental dip in the voltage level leads to extreme power surges or brownouts. Power surges cause huge damage to electrical gadgets such as televisions, computers and air conditioners.

To overcome this issue the distribution network needs to strengthened. Efforts can be made so that wires don't come in contact with each other, transformers shouldn't brush against tree tops and the overload on them needs to be examined. And most importantly, this requires regular maintenance of transport line.