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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Basic motor transformer generator

eCentric Solutions,

1549

How to perform a DC resistance test In Alternator and their proceduces?

1846

if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

1470

what is difference between KW and KVA

1 2497

how to select rating of HT Panel

1508

if we have 320KVA Genset kindly advice how much load we can put it.

1582

For 35 HP motor how much amount of capacitor should be on in kvr to reduce the current bill

1 2442

Why transformer used in UPS??

JLL,

1665

The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?

1771

if there are six generators (3 gas CATT, one Jenbacher o1 MW each, and two nos Diesel 01 no 01 mw other 0.65mw EDGs ( say), 3 CAtt gas set have identical pole pitch,01mw EDG and Jenbacher gas Set have different pole pitch, how their power connection can be done to connect a common bus bar during installation. in short, how different pole pitched generators power connection can be done to connect a common busbar system through generators incomer ACBs.

1664

1hp single phase load = howmuch 3 phase load

1590

1.4 What is meant by CT knee point voltage and how would you determine it

1750

If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?

1469

If we need4× 50mm sq cable but it's not available so we can pull 4×25mm sq 2cables

ABC,

1558

i have gear oil pump with single phase motor.some time its motor starts running in reverse direction rather than forward direction...whats the reason behind this issue. 1- either capacitor is week? 2- or winding is week?

1466

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Un-Answered Questions { Electrical Engineering }

What is Tachometer used to measure?

1325

How do the synchronizing lamps indicate the correctness of phase sequence between existing and incoming alternators?

2241

Name two types of electrical analogous for mechanical system.

1280

how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.

2289

What is notching in dc machine?

2061

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?

2363

Why is back emf used for a DC motor? Highlight its significance.

1255

What are the function of different components of servo motor?

2092

and gate circuit diagram,amplifier circuit diagram

2124

why single phase to grd test in HV cable?why not 2 phase at a time?

2328

what is the breaking capacity and making capacity of circuit breaker and how

2183

When color of silica gel will gets change from blue to pink from Top to bottom?

1648

What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?

1619

for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

1536

what is th basic difference between a d latch time line and a d flip flop time line???

2036

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