Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is meant by IGBT how they differ from tyristor ?

1901

in parallel operation of power transformer why the distance between power transformer and capacitor bank feeder is necessary to know

1337

what is earth pit , how we can measured it, what earth rods reference

ups,

2038

what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation

1435

in 6.6 kv vaccum circuit breaker vaccum bottole vaccum capacity ????

Divis Laboratories,

1541

with out colour codeing on conductor how can be find what is r,what is b,what is y phases.....

Divis Laboratories,

1477

magnetizer priciple

1546

how we done power management?

1 3104

The Q-facr o of a coil given as wL/R. what will be shape of Q versus frequency graph.

GATE,

1523

what is the use of reactive power

3 5610

What is Residual Voltage & Residual Current?

4 82905

arrange to send solved question and answer its easy to study and understand the thing, because of Exam is to be conducted shortly

1 2423

kindly arrange to send me RRB Bangalore previous question paper for JE/Electrical and JE/Signal I am going to write exam on 2010

2 6372

what are the types of towers in HT transmission

2 3697

Two alternators say 1 & 2 are poised to parallel operation. But at the time of paralleing alternator 2 gets out of the system by tripping Earth fault relay. Please send me reply why this is happening?

2 5909


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Un-Answered Questions { Electrical Engineering }

SIR, GIVE ME OPGW SAG CALCULATION FORMULA I AM DAE ELECTRICAL. THANKS

5924


WANTCONTACT NUMBER & EMAIL/ WEBSITE TO CONTACT THE SECRETARY,MADHYA PRADESH LICENSING BOARD(ELECTRICAL),K- BLOCK,3RD FLOOR,SATPOODA BHAWAN,BHOPAL

1608


how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

1828


What is true sine wave or pure sine wave inverter?? Is it sine wave or step wave?? If it is step wave, waves with how much step is considered as pure sine wave? Is it possible to produce pure sinewave using power electronics?

1345


Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?

1490






What are the necessary components of the feedback control system?

701


why the neutral line is not giving shock to us if we touch it ?

1308


difference between the applicability of nortons and thevenin theorem

1524


Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

1526


how to calculate the earth mat design in 132 kv substation yard ????

5697


Pl. share your experience about industrial-electronics repair of machine tool.

1429


What happens if the series current double?

969


What happens if i apply 500V to 440V rotary Switch ?

1363


Difference between control junction box (cjb) and power junction box(pjb)?

2908


what are problems caused by the pdu in rack server

1433