Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the current carring capacity of 0000SWG and 0SWG overhead solid bare copper conductor. If possible please provide reference for various sizes Vs current ratings

1 2907

On monitor it is written that current rating is 2.2 Amps. Is it a monitor current drawing capacity or CPU & monitor. If it is only monitor rating, what will be the rating of only CPU and what will be the power consumption rating of PC, Monitor & Scanner? In net, I learnt that computer consumes only 200-300W while running. With the current rating of 2.2 Amps, how it could be 200-300Watts. Please explain?

3 4418

What is the permissable nutral current of three phase system as per IS standards?

1514

For example, if I use Star delta transformer for distribution, Can I Connect 230 V lighting load bewteen secondary phase & primary neutarl. What will be the effect, if I connect in this manner?

2 3763

why rating of transformer is in KVA but of motor is in KW

4 7424

WHAT SHOULD BE THE RATING OF generator required to run a pump motor of 45 Kw.

Jauss Polymers,

1 3537

How earthing/grounding done in aeroplanes and ships.

3107

what will be the effect of leading power factor on turbogenerator (and system) that is running parallel with other TG.

1 2911

IN induction motor pf is increased using capacitors.what will be the effect on motor and system when very large capacitor is accidently installed and pf goes leading.

1614

what will happen if ac motor given dc supply?

1 3990

what will happen if dc motor given ac supply

Mahaveer,

11 37631

what will happen if transformer given dc input

5 7302

what will happen if field winding of Synchronous generators given ac supply

4 5142

what will happen if field winding supply of synch generator accidently got disconnected?

4 4470

why one pin of plug pin is longer than other two? In some mobile chargers one pin is made not conducting .Why?

4 5321


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

help me with the question that might be ask on the interview for technical position

1794


at which voltage level arcing ground is occurs ??????????

1567


Can I use star delta connected induction motor for dual supply voltage?

1500


Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

1480


Pls explan the OLR setting in VCB at HT yard

2150






Can any body tell gulf interview question for experienced electrical engineer ?

1608


what r the checklist while installing a 380 kva DG set

3309


Why you are switching off arc protection mcb when you are taking shutdown for lv board.

1197


what is the difference between an alternator and a synchronous motor

1551


why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?

5037


Could u pls tell me the NPCIL electrical engineering interview questions for Executive trainee, and also guide me how to face the interview.

3858


TRAFO 1. WHY BREATHER IS USED. 2. WHY OIL GOES DOWN IN CONSERVATOR TANK. 3. WHY WE ARE TAKING OIL SAMPLE TAKING FROM BOTTOM OF TRANSFORMER. 4. HOW TO CHECK IR VALUE OF TRANSFORMER. 5. WHY OLTC HAVING BUCHHOLZ TRIP ONLY; WHY NO ALARM. 6. OFF LOAD TAP CHANGER OPERATION PROCEDURE. 7. TR. SHUTDOWN / ISOLATION PROCEDURE. 8. WHEN THREE TRS. IN PARALLEL, ONE TR. IS NOT SHARING THE LOAD – WHAT IS REASON AND WHAT YOU WILL DO. 9. WHY TR. HAS OLTC IN HV SIDE. 10. WHAT IS % IMPEDANCE. 11. WHY TR. RATING IN MVA. 12. WHAT IS VECTOR GROUP IN TR. 13. CONDITION FOR PARALLEL OPERATION OF TRS. 14. WHAT IS TERTIARY WINDING. WHERE IT WILL BE. 15. IF TR. TRIP ON BUCHHOLZ OR TAP CHANGER RELAY, WHAT YOU WILL DO. 16. DIFFERENCE BETWEEN OIL TEMP. AND WINDING TEMP. PROTECTION 17. HOW WINDING TEMP. IS MEASURED IN CAST RESIN TR. 18. DIFFERENT TYPES OF FAULTS IN TR. Trafo - Page-1 of 2 19. WHAT HAPPENS WHEN TR. CHARGED FROM LV. 20. WHAT WILL YOU DO IF MEGGER READING SHOWS ZERO BETWEEN LV WINDING AND EARTH. 21. CAN WE INTERCHANGE BUCHHOLZ RELAY OF MAIN TANK AND OLTC TANK. 22. IF THE LINE BETWEEN BREATHER AND CONSERVATOR TANK 23. LOCKED, WHAT WILL HAPPEN DURING LOAD CYCLE. 24. WHAT IS THE FUNCTION OF OIL SEAL IN BREATHER. 25. WHAT ARE LOCATIONS FOR BUCHHOLZ RELAY FIXED IN POWER TR. 26. WHAT ARE CHECKS IN POWER TR. DURING MAINTENANCE. 27. WHAT IS IMPORTANT WHEN WE CHECK OLTC OPERATION DURING MAINTENANCE. Trafo - Page 2 of 2

1986


What are test signals and their significance?

621


hi frnds what is meant by harmonics & what is meant by third hormonics,where its will occur ?thank u

1510


A 3 phase transformer's (Y-Y) Y and B phase is (Y and B connection not broken) broken from neutral and R and Nutral connection is ok, what will be the relay tripping and why

1460