Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?

2395

If we have 15000kw connected load in a factory than how much power demand sanction should be taken from electricity board. Pls provide complete calculation.

3 8029

why can the rotor of 3 phase slip ring induction motor not be a 2 phase rotor?

2107

X/R ratio in 11kv transmission line is?

RRB,

1 7526

how to calculate kvar in Akiva

1979

what is meant by k-rating in isolation transformer?what is k9, k14 stands for?

2829

why transformer calling in VA rating

6 8370

Why 30°phase shift occur in star-delta transformer between primary and secondary?

1 6633

In cable sizing calculation (determining the max route length of cable) why we choose the shortest length between cable length of full load current Iflc & starting current Istart?

3374

what is defference by mcb,mccb and mpcb

Bhel,

4 6916

can anibody tel me on what basis the transformer vector groups are determined????

1 3071

how does a shunt reactor maintains the bus voltage???

2127

what is creep of energy meter?

HNG,

2 6636

low voltage grounding is done by?? 1)solidly gnd 2)ressistance 3)reactance

1 3462

distribution is maximum done by a)radial b)network c) parallel d)b & c

2000

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Un-Answered Questions { Electrical Engineering }

why 5kW motor becomes unbalance if its relay trip 1st time and its set value is 7.0 A

2057

Define coil span?

1135

we have amp, voltage, kw, length detail then how to calculte copper & alluminium size of conductor of 3-phase induction motor

1518

Which is the largest hydropower station in the world?

1189

What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

2158

How do i right a ladder diagram that has 1 actuator that performs a full stroke followed by a half stroke

2144

Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.

1731

WHAT IS THE USE OF PIG TAIL IN WINDOW CT ?

2599

how to calculate cable size in diffrent loads?

2131

LT cable fault chaecking equipment and to find out the distance at what distence it failure . Name and where it is available?

2212

A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

2001

Why derivative controller is not used in control systems?

1241

what are the installation procedure of high voltage power transformer,CT,CB&PT?

2128

can we use CBCT in neutral of solidly grounded transformer? in place of three phases we can pass only one phase which decreases the size of CBCT?

2362

What is MSL designation of a motor and same may be provided in details.

1775

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