HVDC transmission is preferred to EHV AC because 

(a) HVDC terminal equipments are inexpensive 

(b) VAR compensation is not required in HVDC systems 

(c) System stability can be improved 

(d) Harmonic problem is avoided 
B

2 Answers

Answer :

HVDC transmission is preferred to EHV AC because System stability can be improved 

Answer :

C- system stability can be improved

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