What is the cause of sudden rise of voltage, in effect the home appliances were damage.?

Answer 1

In New England, voltage regulator rules by ISO New England are pretty strict for power generating stations. Because the large generating stations are tied to the 345,000 volt grid, one station typically cannot effect the grid's voltage or frequency. Most surges seen at the customer level are caused by the local distribution system. Traffic accidents, tree branches, utility pole transformer failures for example often cause sudden surges to homes.

Answer 2

You mean a power surge? Sounds like the Voltage regulator on the pole outside went bad. Was your house the only affected, or did the neighbors get it too? Did you call the power company to make sure they fix the problem and pay for your stuff? Only other cause would be lightning, but you would have known that happened. You must have old power lines, cause the newer ones have a fail safe, so that if the voltage regulator goes bad, it fails open rather than shorting.

Answer 3

That can be caused by lighting strikes hitting high voltage power lines, it can also be from equipment failure, and most often it comes direct from the power generating station, the regulating of volts/amps can be pretty crude.

Answer 4

Electricity is full of problems, surges eminate from various sources and causes. Get a SURGE BAR and be sure of proper grounding. In electronics, there are three basic problems, shorts, grounds, and opens.

Answer 5

lightning storms, getting outlets wet,using to many ams off of one circut