engineering recuitment BSPHCL JE Electrical 2024 Mock Test Power Systems Transmission and Distribution Overhead Insulators
A three-phase overhead transmission line is being supported by three discs suspension insulators, the potential across the first and the second insulator are 8 kV and 11 kV, respectively. String efficiency is
1
68.28%
2
66.28%
3
72.28%
4
63.28%