1
GATE EE 2016 Set 1
Numerical
+2
-0
A DC shunt generator delivers 45 A at a terminal voltage of 220 V. The armature and the shunt field resistance are 0.01 Ω and 44 Ω respectively. The stray losses are 375 W. The percentage efficiency of the DC generator is ______.
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2
GATE EE 2016 Set 1
MCQ (Single Correct Answer)
+1
-0.3
If an ideal transformer has an inductive load element at port 2 as shown in the figure below, the equivalent inductance at port 1 is GATE EE 2016 Set 1 Electrical Machines - Transformers Question 77 English
A
nL
B
n2L
C
$$\frac{\mathrm n}{\mathrm L}$$
D
$$\frac{\mathrm n^2}{\mathrm L}$$
3
GATE EE 2016 Set 1
MCQ (Single Correct Answer)
+2
-0.6
A single-phase, 22 kVA, 2200 V/220 V, 50 Hz, distribution transformer is to be connected as an autotransformer to get an output voltage of 2420 V. Its maximum kVA rating as an auto-transformer is
A
22
B
24.2
C
242
D
2420
4
GATE EE 2016 Set 1
MCQ (Single Correct Answer)
+2
-0.6
If the star side of the star-delta transformer shown in the figure is excited by a negative sequence voltage, then GATE EE 2016 Set 1 Electrical Machines - Transformers Question 72 English
A
VAB leads Vab by 60º
B
VAB lags Vab by 60º
C
VAB leads Vab by 30º
D
VAB lags Vab by 30º
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