Electrical Machines - Electrical Engineering (MCQ) questions and answers for Q. 14532

Q.  The open circuit voltage and short circuit current of a 3 phase, star connected alternator are 1050 V and 250 A respectively. Its field current is 12 A. Then the synchronous impedance of alternator will be
- Published on 29 Oct 15

a. 1.34 ohm
b. 1.69 ohm
c. 2.42 ohm
d. 2.85 ohm

ANSWER: 2.42 ohm

Related Content

 

    Discussion

  • Kandarp Vegad   -Posted on 21 Oct 22
    Eph=Voc/sqrt(3)=1050/sqrt(3)=606.21
    Xs=Eph/Isc=606.21/250=2.42

➨ Post your comment / Share knowledge


Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)
▲