1
GATE EE 2006
MCQ (Single Correct Answer)
+1
-0.3
A $$400$$ V, $$50$$ Hz, three phase balanced source supplies power to a star connected load whose rating is $$12\sqrt 3 $$ kVA, $$0.8$$ pf(lag). The rating (in kVAR) of the delta connected (capacitive) reactive power bank neccessary to bring the pf to unity is
A
$$28.78$$
B
$$21.60$$
C
$$16.60$$
D
$$12.47$$
2
GATE EE 2005
MCQ (Single Correct Answer)
+1
-0.3
The insulation strength of an EHV transmission line is mainly governed by
A
Load power factor
B
Switching over-voltages
C
Harmonics
D
Corona
3
GATE EE 2004
MCQ (Single Correct Answer)
+1
-0.3
Total instantaneous power supplied by a $$3$$-phase ac supply to a balanced $$R$$-$$L$$ load is
A
Zero
B
Constant
C
Pulsating with zero average
D
Pulsating with non-zero average
4
GATE EE 2004
MCQ (Single Correct Answer)
+1
-0.3
The rated voltage of a $$3$$-phase power system is given as
A
RMS phase voltage
B
PEAK phase voltage
C
RMS line to line voltage
D
PEAK line to line voltage
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