Question

In my home there is three phase electeic connection of 220 volt. Today, an accident occurred. From the transformer end the earthing wire connected to live wire with a blast and flash. Inside my home my running equipements suddenly stopped working and light gone. Later the light connection restored but my equipments like TV, electric chimney and RO water purifier not working. It seems that they have some issue.
Please tell me if there is any protection system from such incidents i.e. when earthing wire energised.

Answer 1

Answer:

Later" (and any subsequent words) was ignored because we limit queries to 32 words.

Answer 2

Answer:

by a automatic voltage