Answer Posted / t eswara rao

Function of the earth fault relay is to operate for the
leakage currents to earth. There are two types of earth
fault relays depending up on the configuration
1. Residual current earth fault relay
2. Sensitive earth fault relay

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i ha done my 10th with 71% ,ITI with 81% 11th with 75% 12th 43% apprentiship with 71% in SAT i secure 1390 ,TOEFL 27 i was refused four times and in all me interview visa officar told that i am not Qualify for study in USA but i completed my 12th yes i got low persentage in my 12th but i seen to much student they already got visa with them 3 or 4 backlocs so why they are refused me ?

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