Question { 66962 }

why electric shock due to dc is dangerous than that of ac

Answer

MY Bro Pradeep kumar who tells you that Dc is not harmfull , The railway traction system supply is completely dc transmission, even though all the high tension transmission is done using dc supply, the actual reason is that in ac once when its cycle comes to zero u get a chance to be left from shock but in d.c once u get shock u wont as it has only positive cycle.

Question { Eskom, 12057 }

why buchholz relay installed in inclined position

Answer

Buchholz relay is installed in inclined position because of its function as it is used for internal fault protection inside the transformer as in case of over heating and loading of transformer oil temperature also increases hence oil expands inside the body of transformer so that excessive oil expands during heating or time of fault enters in buchholz relays body and after a particular level relays coil get trips and gives an alarm to the operator regarding the fault.