CS/B.TECH/PWE/SEM-8/PWE-804B/2013
2013
HVDC TRANSMISSION
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
( Multiple Choice Type Questions )
1. Choose the correct alternatives for the following :
10x1 = 10
i) Which system is not defined in an HVDC system ?
a) Monopolar
b) Bipolar
c) Unipolar
d) Homopolar.
ii) The longest existing HVDC link in the world is at
a) UK b) USA
c) Sweden d) China.
iii) HVDC transmission system is economical beyond
a) 200 km b) 300 km
c) 400 km d) 500 km.
iv) Overcurrent protection in HVDC system is
accomplished by
a) overhead shield wire
b) control valves
c) protective gaps
d) lightning arrester.
v) The longest existing HVDC link in India is
a) Rihand — Dadri
b) Talcher — Kolar
c) Chandpur — Phadge
d) Jaipur — Vishakhapatnam.