7/24/2019 Hvdc Two Marks

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HVDC TRANSMISSION

1. What is use of DC link?

2. What are the areas of ali!ation of DC trans"ission?

#. What are HVDC !on$erters?

%. What is s"oothin& rea!tors?'. What is RI noise?

(. What is "eant )* interferen!e?

+. What are the ro)le"s ,ith in-e!tion of har"oni!s?

. What are DC )reakers?

/. What is a VDCO0?

1. What are the sour!es of rea!ti$e o,er?

11. What are the "aterials use for DC line insulators? Ho, is the erfor"an!e of insulators

e$aluate?

12. Ho, are line faults ete!te?1#. 0ist the !orona effe!ts in DC line.

1%. Wh* are the rea!ti$e o,er !ontrols re3uire urin& transients?

1'. State the ali!ation of DC )reakers.1(. What are the !o"onents of s,it!hin& ti"e of )reakers?

1+. 4i$e the otential ali!ation of MTDC s*ste".

1. 56lain the reason for *na"i! o$er $olta&e.

1/. What is 4raet7 !ir!uit use in HVDC trans"ission?

2. Define o$er $olta&e.

21. What are the "a-or ro)le"s asso!iate ,ith the in-e!tion of har"oni!s into the AC s*ste"?

22. What are the $arious t*es of AC filters?

2#. What is )reak e$en istan!e?

2%. Wh* ulse nu")er &reater than 12 are not referre in ra!ti!e?

2'. What is series MTDC s*ste"?