Power Systems
A string insulator has 4 units. The voltage across bottom most unit is 10 kV and its efficiency is 90%. Find the total operating phase voltage?

 40 kV
 45 kV
 32 kV
 36 kV

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
The value of off diagonal elements is

 sum of admittances connected at bus j
 which is connected between bus i and bus j with negative sign
 which is connected between bus i and bus j with positive sign
 sum of admittances connected at bus i

ANSWER DOWNLOAD EXAMIANS APP