8/16/2019 EEE Lab Viva

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#1

  ?                  ?                ?         ?        ?       ?        ?       ?        ?

#2

variac ki?variac die koto theke koto voltage pawa jai?transformer er rated current ,rated voltage koto?lab e thaka 3 phase source gular voltage koto ?lab e used transformer step down or step up?motor speed koi way te control kora jai?which one is the best?

#3

1. 1 no exp te Y and Delta connection er moddhe kontay bulb beshi jolche.2. exp 4 er equivalent circuit akte bolse. cu loss kon component er jonno hoy. seta ber korte kon test kora lage. and short circuit test HT side e kora hoy keno.3. dc motor e koyta rheostate lage. motor speed barate hole konta kivabe use korte hobe.4. exp 7 e koyta pot lage. kontar kaj ki.