Q1.. Consider a three-core, three-phase, 50Hz, 11kV cable whose conductors are denoted as R, Y
and B in the figure. The inter-phase capacitance (C1) between each pair of conductors is 0.2µF
and the capacitance between each line conductor and the sheath is 0.4.µF. The per-phase
charging current is
Answer : Option AExplaination / Solution: No Explaination.
Q7.Match the items in List-I with the items in List-II and select the correct answer using the codes given below the lists.
List-I List-II
A. Improve power factor 1. Shunt reactor
B. Reduce the current ripples 2. Shunt capacitor
C. Increase the power flow in line 3. Series capacitor
D. Reduce the ferranti effect 4. Series reactor
Codes:
Answer : Option BExplaination / Solution: No Explaination.
Q8.Match the items in List-I with the items in List-II and select the correct answer using the codes given below the lists.
List I List II
a. Short Line 1. Ohm Relay
b. Medium Line 2. Reactance Relay
c. Long Line 3. Mho Relay
Answer : Option CExplaination / Solution: No Explaination.