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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why we are using starter

5 4245

ELECTRICAL DRIVES: can a motor load system with passive load torque can have equilibrium speed in second quadrant

3855

Why we use stones in switchyard?

Havells, L&T,

2 7096

what is the diffrence between current transformer and voltage trasformer

3 5020

why generaotr rating is in kva and dc motor in kw?

Bhel, NTPC,

7 12061

When generator connected, the circuit ELCB exploded. What is the reson?

3 3611

what is the difference between current voltage transformer and current transformer and where it is used?

2 3448

what is the formula to calculate voltage drop/loss on 66KV Transmission Line?

2703

What is a circuit breaker contact multiplier relay?

2 8935

what is the cause of voltage dipp or swell in the transmission lines?

1222

Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

1077

why plc need seprate earthing?

ABB, Whirlpool,

2 10312

What is the purpose of earthing Truck ? How does it work for busbar and cables?

1 13989

If I want to lift the water at a height 50m from ground level through two inch(diameter) metal pipe then what is the capacity of motor pump is required? is it possible in single phase supply or not?

1088

what is the difference between thyristor & IGBT?

2 9865


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Un-Answered Questions { Electrical Engineering }

Briefly describe your ideal job?

2140


how balanced in star delta connection ?

1163


What is inrush current?

249


What was the Dg set radiator and lube oil temperatures trip in ACB

890


What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?

2462






why we use circuit breakers for switching instead of normal switching device?

1036


how we find transformer capacity by ohm

1285


Why the standard of ambient teperature mentioned as 40 degree celcius in machines.

1065


what is the synchronous timer ? and it applications.

1503


one split ac how can told of this ac which Tr tell me us

1112


armature is that part in which current is induced since in dc motor we supply current to the conductor so why we call it armature?

1017


what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation

1065


oil cooled transformer

1368


how we decide scurt (disc) of insulator with respect to kv rating

2328


What is the maximum breakdown voltage of 11KVA and 66 KVA power line and how it is calculated?

1396