Question

HVDC transmission lines are __________ as compared to HVAC lines.

(a) difficult to erect

(b) more expensive for long distances

(c) more expensive for short distances

(d) less expensive for short distances

This question was addressed to me in my homework.

Asked question is from Applications of Power Electronics-2 in section Applications, Cycloconverters and  Miscellaneous of Power Electronics

Answer 1

Correct choice is (c) more expensive for short distances

For explanation I would say: HVDC lines require additional cost of the converting and inverting equipments, hence they are more expensive for short distances as compared to HVAC lines.