Electrical Engineering Interview Questions

how i run d.c. moter with solar panel without use of battery?

2606

Can anybody just suggest about the scope of Electrical design with ETAP software?Just guide me?

3338

why all selected supply voltage are multiple of 11

4541

If SFU is Switch Fuse Unit, What is the expansion for FSHF in Electrical Engineering?

2103

How to calculate Busbar Thickness for Different type of HT/LT panels

5860

How to select cable rating for HT/LT Panels

12321

What is notching in dc machine?

1564

what is the difference in between short time and continuous rating?

5733

There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.

GMR,

1676

why restricted earth fault protection can not operate for phase faults??as there will be a current in secondary of ct,when a phase fault occurs!

GMR,

2358

Why not connect relay Y phase for over current and earth fault

HB,

3477

What is dynamo?How it works and what is the function of dynamo in a DG.

2129

why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

HCL,

1622

What is dynamo?How it works and what is the function of dynamo in a DG.

11987

why we ht line cable size small rather than lt cable.

7013

Un-Answered Questions { Electrical Engineering }

What are the common sources of energy?

665

How to do maintenance of transformer feeder.

1401

why is control bus bi-directional?

1752

How to decide CT & PT ratings for a given transmission line carrying some rated voltage?

1923

can i able to get bhel previous exam question paper?

1740

and gate circuit diagram,amplifier circuit diagram

1629

what will be project cost for 100 kv transformer connection under oyt scheme.

2467

hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

1718

State superposition theorem?

723

I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions

1243

how can we make cable shedule for controll wiring ? which details must be required for it.?

1695

how to calculate compresor capacity?

1713

What will be the current drawn by HT motor, if low voltage is applied.. any formula to calculate the LT amps of HT motor.?

1061

what is the maximim current drawn by 1 phase and three phase welding machine

1487

State the methods of improving power factor?

653