engineering recuitment MAHATRANSCO AE Electrical Mock Test Power Systems Transmission and Distribution Overhead Insulators
Consider a three-phase. 50 Hz, 11 kV distribution system, Each of the conductors is suspended by an insulator string having two identical porcelain insulators. The self-capacitance of the insulator is 5 times the shunt capacitance between the link and the ground, as shown in the figure. The voltage across the two insulators are
1
e1 = 3.74 kV, e2 = 2.61 kV
2
e1 = 3.46 kV, e2 = 2.89 kV
3
e1 = 6.0 kV, e2 = 4.23 kV
4
e1 = 5.5 kV, e2 = 5.5 kV
5
None of these