By using
guard ring in a transmission line, its string efficiency
increase
decrease
remain constant
none
increase
By using
guard ring in a transmission line its string efficiency increases, guard ring
serves two following purposes
1. Equalization
of voltage drop over on the unit.
2. Protect
the insulator string from the flash over whenever over voltage occur between
lower structure and upper conductor.
3. Due to
this string efficiency increases.
Hence, the
correct option is (A).
Preparing students for success in a changing World.
We care about our students
RPSC-AE, RSMSSB-JE, SSC-JE, RRB-JE, PSU's