1
GATE EE 2015 Set 1
MCQ (Single Correct Answer)
+2
-0.6
A sustained three phase fault occurs in the power system shown in the figure. The current and voltage phasors during the fault (on a common reference), after the natural transients have died down, are also shown. Where is the fault located? GATE EE 2015 Set 1 Power System Analysis - Symmetrical Components and Symmetrical and Unsymmetrical Faults Question 12 English
A
Location $$P$$
B
Location $$Q$$
C
Location $$R$$
D
Location $$S$$
2
GATE EE 2014 Set 2
Numerical
+2
-0
A three phase, $$100$$ $$MVA,$$ $$25$$ $$kV$$ generator has solidly grounded neutral. The positive, negative, and the zero sequence reactance's of the generator are $$0.2$$ $$pu$$, $$0.2$$ $$pu$$, and 0.05 $$pu,$$ respectively, at the machine base quantities. If a bolted single phase to ground fault occurs at the terminal of the unloaded generator, the fault current in amperes immediately after the fault is __________
Your input ____
3
GATE EE 2014 Set 1
MCQ (Single Correct Answer)
+2
-0.6
In an unbalanced three phase system phase current $${{\rm I}_a} = 1\angle \left( { - {{90}^0}} \right)\,\,pu,\,\,$$ negative sequence current $$\,{{\rm I}_{b2}} = 4\angle \left( { - {{150}^0}} \right)\,\,pu,\,\,$$ zero sequence current $$\,\,{{\rm I}_{c0}} = 3\angle {90^0}\,\,pu.\,\,\,$$ The magnitude of phase current $${{\rm I}_b}$$ in $$pu$ is
A
$$1.00$$
B
$$7.81$$
C
$$11.53$$
D
$$13.00$$
4
GATE EE 2010
MCQ (Single Correct Answer)
+2
-0.6
The zero-sequence circuit of the three phase transformer shown in the figure is GATE EE 2010 Power System Analysis - Symmetrical Components and Symmetrical and Unsymmetrical Faults Question 14 English
A
GATE EE 2010 Power System Analysis - Symmetrical Components and Symmetrical and Unsymmetrical Faults Question 14 English Option 1
B
GATE EE 2010 Power System Analysis - Symmetrical Components and Symmetrical and Unsymmetrical Faults Question 14 English Option 2
C
GATE EE 2010 Power System Analysis - Symmetrical Components and Symmetrical and Unsymmetrical Faults Question 14 English Option 3
D
GATE EE 2010 Power System Analysis - Symmetrical Components and Symmetrical and Unsymmetrical Faults Question 14 English Option 4
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