Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Does increase or decrease of reactive load affects the Voltage.

Nalco,

5 11265

How Calculat the Cable Sizing of HT/LT System & Explian by one Exampal?

Siemens,

1 6899

What is meant by TAN-DELTA test carried out in motors?

3 18653

Why reverse power relay is used?

12 53866

What is the meaning of ST and HT in electrical transmission and what are thier range.

6 37676

why the transformer secondary voltage is more than the load end voltage like t/f 11KV/433V for 415V(terminal voltage)

4 11769

how netral CT is selected (including its details specification)

ABB, ABC, dbpl, Mecon, Shree Engineering, Tapasya Transformers,

8 43890

Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

1934

what are the necessary basic electrical topics to learn for mechanical engineer to deal practical problems.

Honda,

2189

what is upper impedance and lower impedance of a distance relay

1995

What is RTCC in a transfomer and specify its function.

MCB, Vodafone,

11 114074

What is OLTC in a transformer, specify its fuction.

Bhel, Isgec, L&T,

35 141540

What is OT in a transformer, specify its function.

2 5017

Whta is WT in a transformer, specify its function.

4 8678

What is ST and specify its range of voltage.

1932

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Un-Answered Questions { Electrical Engineering }

Dear Respected sir how to test ABB REX521 protection relay by relay tester.

2707

What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

6100

what is meaning of sympathetic tripping with respect to relays and give the values for current carrying capacities for copper and aluminium cables from 16sq mm to 500sq mm

5027

What's mean HVF & HAF in Vacuum Circuit Breaker?

5285

what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?

1930

700KW 6.6KV slip ring induction motor to use VFD to control the speed

3164

Starting Time of LT & HT Motor

1903

How to measure power in 2 or 4 or n phase circuit? Please give me a formula.

1879

i have done diploma and btech in EE and live in Chandigarh so kindly help me how can i make my competency certificate in my area.

2172

draw vector diagram and +ve,zero sequence diagram of symmetrical three phase fault.

1993

1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?

2250

Whether the vacuum contactor requires Short circuit protection?If No,why?

1999

specify the inbuilt protections in DG

2026

what is the condition for YnD11

2512

Define ampere

1242

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