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Fault Analysis and Protection - Power Systems - Electrical Engineering Previous Year Questions

Practice Fault Analysis and Protection - Power Systems - Electrical Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

24Papers

19Years

43Questions

1Topics

Fault Analysis and Protection question pattern

Every graph below is calculated only from this selection.

Questions by year

Compare question counts across years.

Difficulty distribution

How the classified questions are distributed by difficulty.

43questions

Medium 32 74.4%

Easy 7 16.3%

Hard 4 9.3%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

43questions

MCQ 29 67.4%

Numerical Answer Type (NAT) 12 27.9%

MSQ 2 4.7%

Subject weightage

Top subjects by unique question coverage.

Electrical Engineering

43 Qs

Most asked topics

Top topics across the included previous year papers.

Power Systems

43 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Fault Analysis and Protection

43 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Electrical Engineering (EE) 2026

3 Qs

Electrical Engineering (EE) 2025

1 Qs

Electrical Engineering (EE) 2024

1 Qs

Electrical Engineering (EE) 2023

2 Qs

Electrical Engineering (EE) 2022

1 Qs

Electrical Engineering (EE) 2021

2 Qs

Electrical Engineering (EE) 2020

1 Qs

Electrical Engineering (EE) 2019

3 Qs

Electrical Engineering (EE) 2018

2 Qs

Electrical Engineering (EE) 2017 [Session 1]

1 Qs

Electrical Engineering (EE) 2016 [Session 1]

2 Qs

Electrical Engineering (EE) 2016 [Session 2]

2 Qs

Electrical Engineering (EE) 2014 [Session 1]

4 Qs

Electrical Engineering (EE) 2014 [Session 2]

1 Qs

Electrical Engineering (EE) 2013 [Session 1]

1 Qs

Electrical Engineering (EE) 2013 [Session 2]

1 Qs

Electrical Engineering (EE) 2013 [Session 3]

1 Qs

Electrical Engineering (EE) 2013 [Session 4]

1 Qs

Electrical Engineering (EE) 2012

1 Qs

Electrical Engineering (EE) 2011

3 Qs

Electrical Engineering (EE) 2010

2 Qs

Electrical Engineering (EE) 2009

1 Qs

Electrical Engineering (EE) 2008

5 Qs

Electrical Engineering (EE) 2007

1 Qs

Included previous year papers

Newest papers appear first. Search these papers or sort by year and name.

Paper name	Year	PDF
Electrical Engineering (EE) 20262026 3 questions in this view	2026	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20252025 1 questions in this view	2025	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20242024 1 questions in this view	2024	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20232023 2 questions in this view	2023	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20222022 1 questions in this view	2022	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20212021 2 questions in this view	2021	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download Official answer keyOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20202020 1 questions in this view	2020	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20192019 3 questions in this view	2019	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20182018 2 questions in this view	2018	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 2017 [Session 1]2017 1 questions in this view	2017	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 2016 [Session 1]2016 2 questions in this view	2016	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 2016 [Session 2]2016 2 questions in this view	2016	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 2014 [Session 1]2014 4 questions in this view	2014	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 2014 [Session 2]2014 1 questions in this view	2014	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 2013 [Session 1]2013 1 questions in this view	2013	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 2013 [Session 2]2013 1 questions in this view	2013	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 2013 [Session 3]2013 1 questions in this view	2013	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 2013 [Session 4]2013 1 questions in this view	2013	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20122012 1 questions in this view	2012	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20112011 3 questions in this view	2011	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20102010 2 questions in this view	2010	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20092009 1 questions in this view	2009	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20082008 5 questions in this view	2008	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download
Electrical Engineering (EE) 20072007 1 questions in this view	2007	ExamElite PDFs ExamElite solutions Official documents Official question paperOriginal authority-issued PDF Official Download

All Fault Analysis and Protection previous year questions

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2007 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2007

Consider the protection system shown in the figure below. The circuit breakers, numbered from 1 to 7 are of identical type. A single line to ground fault with zero fault impedance occurs at the midpoint of the line (at point F), but circuit breaker 4 fails to operate ("stuck breaker"). If the relays are coordinated correctly, a valid sequence of circuit breaker operations is

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2008 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2008

A two machine power system is shown below. Transmission line XY has positive sequence impedance of $Z_1 \, \Omega$ and zero sequence impedance of $Z_0 \, \Omega$. An 'a' phase to ground fault with zero fault impedance occurs at the centre of the transmission line. Bus voltage at X and line current from X to F for the phase 'a', are given by $V_a$ Volts and $I_a$ Amperes, respectively. Then, the impedance measured by the ground distance relay located at the terminal X of line XY will be given by

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2008 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2008

Voltage phasors at the two terminals of a transmission line of length 70 km have a magnitude of 1.0 per unit but are 180 degrees out of phase. Assuming that the maximum load current in the line is $1/5^{th}$ of minimum 3-phase fault current, which one of the following transmission line protection schemes will NOT pick up for this condition?

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2008 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2008

The instant (t₀) of the fault will be

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2008 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2008

The rms value of the ac component of fault current (I_X) will be

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2008 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2008

Instead of the three phase fault, if a single line to ground fault occurs on phase 'a' at point 'F' with zero fault impedance, then the rms value of the ac component of fault current (I_X) for phase 'a' will be

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2009 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2009

Match the items in List-I with the items in List-II and select the correct answer using the codes given below the lists.

List I Type of transmission line	List II Type of distance relay preferred
a. Short Line	1. Ohm Relay
b. Medium Line	2. Reactance Relay
c. Long Line	3. Mho Relay

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2010 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2010

A three-phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 s. The symmetrical breaking current is

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2010 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2010

For the power system shown in the figure below, the specifications of the components are the following:
G1: 25 kV, 100 MVA, X = 9%
G2: 25 kV, 100 MVA, X = 9%
T1: 25 kV/220 kV, 90 MVA, X = 12%
T2: 220 kV/25 kV, 90 MVA, X = 12%
Line 1: 220 kV, X = 150 ohms
Choose 25 kV as the base voltage at the generator G1, and 200 MVA as the MVA base. The impedance diagram is

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2011 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2011

A negative sequence relay is commonly used to protect

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2011 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2011

For the above system, the positive sequence diagram with the p.u values on the 100 MVA common base is

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2011 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2011

In the above system, the three-phase fault MVA at the bus 3 is

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2012 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2012

The sequence components of the fault current are as follows: I_positive = j1.5 pu, I_negative = -j0.5 pu, I_zero = -j1 pu. The type of fault in the system is
(A) LG
(B) LL
(C) LLG
(D) LLLG

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2013 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2013 [Session 1]

For a power system network with $n$ nodes, $Z_{33}$ of its bus impedance matrix is $j0.5$ per unit. The voltage at node 3 is $1.3\angle -10^{\circ}$ per unit. If a capacitor having reactance of $-j3.5$ per unit is now added to the network between node 3 and the reference node, the current drawn by the capacitor per unit is

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2013 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2013 [Session 2]

For a power system network with n nodes, Z_33 of its bus impedance matrix is j0.5 per unit. The voltage at node 3 is 1.3 ∠ -10° per unit. If a capacitor having reactance of -j3.5 per unit is now added to the network between node 3 and the reference node, the current drawn by the capacitor per unit is

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2013 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2013 [Session 3]

For a power system network with n nodes, $Z_{33}$ of its bus impedance matrix is $j0.5$ per unit. The voltage at node 3 is $1.3\angle-10^\circ$ per unit. If a capacitor having reactance of $-j3.5$ per unit is now added to the network between node 3 and the reference node, the current drawn by the capacitor per unit is

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2013 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2013 [Session 4]

For a power system network with n nodes, $Z_{33}$ of its bus impedance matrix is j0.5 per unit. The voltage at node 3 is $1.3 \angle -10^\circ$ per unit. If a capacitor having reactance of -j3.5 per unit is now added to the network between node 3 and the reference node, the current drawn by the capacitor per unit is

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2014 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2014 [Session 1]

Three-phase to ground fault takes place at locations $F_1$ and $F_2$ in the system shown in the figure.
If the fault takes place at location $F_1$, then the voltage and the current at bus A are $V_{F1}$ and $I_{F1}$ respectively. If the fault takes place at location $F_2$, then the voltage and the current at bus A are $V_{F2}$ and $I_{F2}$ respectively. The correct statement about voltages and currents during faults at $F_1$ and $F_2$ is

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2014 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2014 [Session 1]

A 2-bus system and corresponding zero sequence network are shown in the figure.

The transformers T1 and T2 are connected as

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2014 · Electrical Engineering · Power Systems · Fault Analysis and Protection

Electrical Engineering (EE) 2014 [Session 1]

In an unbalanced three phase system, phase current $I_a = 1\angle(-90°)$ pu, negative sequence current $I_{b2} = 4\angle(-150°)$ pu, zero sequence current $I_{c0} = 3\angle90°$ pu. The magnitude of phase current $I_b$ in pu is

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Fault Analysis and Protection - Power Systems - Electrical Engineering Previous Year Questions