Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?

1405

What the capacitor Current formula?, For 1 KVAr how amps its required? for using the KVAr for boosting the PF Design Calculation.( Eg: for 30 KVAr required how many KW?)

Alstom, Call Centre, EDC, HCL, Procon Engineers,

17 222610

why the crow do not feel the current in overhead line when it sits on the wire??????

6 8140

Is HT capacitor rating connected directly to motor terminals , related to motor no load current?

1519

What exactly is meant by harmonics and harmonic current?? and what is skewing with regard to this??

2 4721

What do you mean by distributed winding in alternators? how exactly is 3 phase power generated?

2 9456

circuit diagram of ht panel

12450

how does a submersible pump work..?

1492

what is the difference between starter and control panel..?

4 17217

how does a submersible pump work..?

1426

what will happen at secondary side of transformer if i increase voltage at primary side?while V1*I1=V2*I2 will secondary voltage or current increase?

2 5820

For a three phase induction motor, what will be the effect on motor if the neutral of the system is shifted to say 20 deg.?

1416

how to control the speed to switched reluctance motor

1509

Why the size of transformer decreases if we increases the frequency?

Graphics Engineering,

5 34746

What is ferro-resonance in electrical system? Why it occurs and what are measures to prevent it?

1780


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Un-Answered Questions { Electrical Engineering }

What are the material used for inductance coil?

711




1922


Define filter?

669


what is model question rrb junior engineer electrical gr.II

1567


What is an iron loss or core loss pi?

648






What is resonant peak?

703


why core is useful for a transformer ?and also in its operation ?

1602


importance of reactive power management

1602


what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct

1310


What will happen if the voltage in my house drops from 220V to any lower voltage?

1673


What is the role of power pack in substation protection system?

2244


to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power

1605


How is the percentage impedence of a transformer fixed at design stage???

1523


Why we use auxillary relay ? what is function of differential relay, directional o/c relay?

1642


Differentiate between induced emf and self inductance?

622