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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How many methods to take IR value of Current Transformer?

1 4261

why autotransformers are not safe for supplying low voltage from a high voltage source?

5 9230

Explain the experiment on ward leonard method of a speed control on a dc shunt motor with an suitable circuit diagram.

1713

what current is taken from a double wound 500kva transformer

4 4267

what is the tolerance for the magnetic balance test conducted on the distribution transformer?

1826

what is the differn bitween RCCB &MCB

3 5571

what is b checks and m checks in diesel generator maintenance?

1 1674

how caculate the pump head to maintain perticuler pressure of water and what would be the motor size in hp for the same?

1 2741

what should be the megger test report for 11KV cable when meggered with 5KV megger , what is the resistance value we should get

7 12565

how we can calculate power factor without knowing current in 230v 100w load ?

10 14493

WHAT IS RETARDATION TEST IN DC MACHINES?

4 20406

What is the List of Equipments, Instruments, Components required in Transmission of electricity from 1 substation to other substation(The equipments required in substation too)? What are the differnt IS standrds used for above equipments in Industry?

2 8798

What is the pratically meaning of neagative going ac current.

1 2658

Why a transformer is rated in kVA and not in kW??

9 10057

my self i am raghu working as tech.. in my college the maximum demand is 211 kva presently we are using 12kva capacitors the target power factor is .95 so what capacity of capacitor banks should i install

2 3445


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Un-Answered Questions { Electrical Engineering }

HOW MANY TYPES OF FUSE?

1228


how will we calculate the copper wire load..

1115


what is the difference between "Rotary bypass isolation switch and Normal bypass switch" pls share indepth techs?

1160


i want to learn control schedule for 11kv panel? can any one send the detailed control schedule?

1509


What are the types of class b amplifier?

237






WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

988


what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

1382


suri transmission

3714


What is the relationship between voltage,current & frequency?

878


sometime battery charged and then automatically charged when rectifier ON conition, is there any chances please clarify the same.

977


What is the difference between Static and servo controlled voltage stablizer?

1235


What do you mean by phasors?

240


What is corkscrew rule?

261


how to electronic energy metter failed in electomagnectic fild passing in the metter and which thing to defect more on metter.

1077


I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?

997