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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

explain PV modules in solar energy generation.

1881

dear sir, i completed diploma in electrical in 2005, how i can get electrical supervisor liance in mumbai

1941

what transformer we used normally and upto which kva?

1905

In Delta connected capcitor bank, One bank failed due to some problem. Can we connect Open delta capacitor bank to 3 phase motor. The motor voltage rating is 6.6KV. IF yes what changes will happen?

1 3418

Why can we connect the mobile charger both ways?

2 4113

why voltage between neutral and earth, with out secondary grounded distribution transformer

Wescosa,

1 3500

What is the clear distance between a MV panel(rear side) and wall.

L&T,

3 6808

How to select cable the size, what is the parameters use and what is the formulas use for this cable size calculation?

1864

I WANT TO know WHICH WAY IS BETTER FOR CONNECTION BETWEEN POWER TRANSFORMER AND MAIN DISTRIBUTION PANEL. 1-IS BETTER WE USE CABLE? 2-IS BETTER WE USE BUS DUCT? my transformer rate power is 2500KVA

1 3186

difference between synchronous reluctance motor and switched reluctance motor

1 5075

How the current flows in dc circuit?

3 5476

what is meant by negative conductor?

2 4060

how megger step up the DC voltage

Voltech,

1 5039

why does voltage generation at 11 kv?

2 4800

we all know voltage is a force(emf), and the force always devides if 2 or more than2 loads are there but why does the voltage remains same is parallel, it must devide na ???

NTPC,

1951

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Un-Answered Questions { Electrical Engineering }

it is possible to measurement of tension of slipring induction motor(SRIM)carbon brushes, any maesuring instruments are available in the markets.

1959

What is slip in an induction motor?

1105

How to minimize the eddy current losses?

1117

(1)WHAT HAPPENS WHEN SUDDENLY LOAD GIVEN TO THE INDUCTION MOTOR ? (2)CAN WE MAKE WOOD AS MAGNET ? (3)WHAT IS THE VALUE OF MAGNETIC FLUX DENSITY IN TRANSFORMER ? (4)WHY WE ARE USING ELECTROMAGNETI NOT ELECTROSTATIC IN MACHINE ?

2136

Wind mill

1838

My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.

1825

How many gap between finger contact in a.c.b. and v.cb.?

1244

How to calculate the fuse rating depend upon the DC circuit?

2815

How to Preparation of online test

1624

How isolater function when installed inelectrical 440V wiring

2178

What is center gravity load in substation?

2377

how withstand of hi-pot test outputs of transformer wire 2.5mm

1928

What are the essential characteristics of signal flow graphs?

1058

i have flexible wire. size of conductors is 0.190 mm & no.of conductors are 48. then size of wire comes 1.37 sqmm instead of 1.5 sqmm . the what is tolerance for this size.

1755

State nyquist stability criterion.

1126

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