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Power System EE

Power System EE
Question:-
Option (A)
3-φ synchronous motor
Option (B)
3-φ induction motor
Option (C)
D.C series motor
Option (D)
C.C compound motor
Correct Option:
A
Question:-
Option (A)
5/_60
Option (B)
5/_60
Option (C)
5/_120
Option (D)
5/_240
Correct Option:
D
Question:-
Option (A)
1 and 1.25
Option (B)
1.25 and 1
Option (C)
1 and zero
Option (D)
zero and 1
Correct Option:
B
Question Solution:
Since the load is at the bus of plant-2 therefore, the line loss will not affected by variation of P2.
Thus, B12 = B21 = 0 and B22 = 0
For a 2-plant system
PL= p21B11+P22B22+2P1P2B12
therefore PL=P21B11