Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is difference between armoured cable and un armoured cable

2 22673

how to calculate diesel consumption of a D.G.Set?

4 9461

is EEE eligible for getting electrical supervisor certificate ? if yes then from which state i sud apply

ONGC,

1 2291

What is the disadventage of gland earthing(power cable) if any. ?

1558

Why we can't start a tube light without a starter(choke) and an inductor?

1 3978

What is the size of a 60 watt and 80 watt tubelight?

1737

In three phase supply why we use R Y B Colour not other.

4 9062

HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER

1693

how we can save electrical energy in industries,please give some inputs

3 3701

what is efficient motors and how it is different from normal induction motors

Sarthak Contracts,

1413

what is the effect of un-synchronized power.

1533

how can we change the phase angle b/w two phase?

2 4051

what is the Maximum voltage range for single phase

4 5057

Re: how to calculate diesel consumption of a D.G.Set? Answer # 1 We can not calculate the diesel comsumption...depending upon load it will conume the diesel...suppose the 1500kva D.G is running and the load is 1000kw means it will consume 150-200 liters per hour....

Cipla,

6 12263

what is plunger and what's the use of it in motor alignment?

CLZ, Yahoo,

1995


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Un-Answered Questions { Electrical Engineering }

how can decide the current rating of oltc

1847


in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?

1829


How calculated single phase induction motor req. Capacitor?

1109


Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me

1612


if two transformers are placed parallel & both have fault impedance of 50KA will it increase or decrease show example?

1520






What is safety of Ht panel

1162


hi frnds can any one help me ? plz send me placement paper of IOCL of Electrical streem .... plz send ....its urgent....

1282


Can we use Ccapacitive voltage transformer directly for metering purpose?

1113


What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning

1407


how unidirectional torque is produced in DC motor?

6283


What are electric motors?

641


What is meant by harmonic distortion?

654


How can claculate to attain the desired PF in the line ( HOW Much KVAR is required ) Pls Give the formula? Equate Petrochemical 0 1 how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec. 0 1 What will happened. if we feed 3phase supplay to the stater with out insert the rotor. How much current will flow through the stater winnding? Equate Petrochemical 0 1 What is required of exietation to the alternater. 0 1 why star point of HT motor not earthed? Equate Petrochemical 0 1 Why we are getting low voltage in star connection? Equate Petrochemical 0 2 What's ND relay & it's functions? Equate Petrochemical 0 2 How instantanious short circuit current is calculated? its formula? Equate Petrochemical 0 2 What is servo Motor? What's the advantages of this motor over Induction motor? Equate Petrochemical 0 2 What is core CT & it's function? Equate Petrochemical 0 3 what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY L & T 0 4 What is required of exietation to the alternater. KNB 1 23 what is the design voltage for 6.6KV 2000 KVAR HT capacitor? Consultancy 0 3 Pls explain about vfd control?Where it is used, Give some example? siemens 1 22 Please explain me abt PQ diagaram in the power sector. 0 9

1593


what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

1459


What is the operating principle of turbo-generator.

1743