Electrical Machines
Induction Machines
Marks 1Marks 2
Synchronous Machines
Marks 1Marks 2Marks 5
1
GATE EE 1994
MCQ (Single Correct Answer)
+1
-0.3
Two transformers of identical voltage but of different capacities are operating in parallel. For satisfactory load sharing
A
impedances must be equal
B
per-unit impedances must be equal
C
per-unit impedances and $${X \over R}$$ ratios must be equal
D
impedances and $${X \over R}$$ ratios must be equal
2
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
Two transformers of the same type, using the same grade of iron and conductor materials, are designed to work at the same flux and current densities; but the linear dimensions of one are two times those of the other in all respects. The ratio of $$kVA$$ of the two transformers closely equals
A
$$16$$
B
$$8$$
C
$$4$$
D
$$2$$
3
GATE EE 1992
MCQ (More than One Correct Answer)
+1
-0
Two transformers of different $$kVA$$ ratings workings in parallel share the load in proportion to their ratings when their
A
per unit leakage impedances on the same $$kVA$$ base are the same
B
per unit leakage impedances on their respective ratings are equal
C
ohmic values of the leakage impedances are inversely proportional to their ratings
D
ohmic values of the leakage magnetizing reactances are the same
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits
Electrical and Electronics Measurement