Tuesday, September 29, 2020

POWER SYSTEM MCQ

MCQ-2- Bundled conductors in EHV transmission lines

increase inductance
increase capacitance
decrease inducatance
decrease capacitance

ANS: decrease inductance

HINT: 
Total inductance L = 2*10-7 * ln(d/r')
Where, d = distance between the conductors r' = 0.7788 r r = radius of the conductor If we use bundled conductors, effective radius will increase and this increase in radius will decrease the inductance.

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