Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why the transformers are rated in KVA ? in new view

3 5242

how to calculate the capacity of CT operated LT trivector meters on a particular distribution transformer.

1 3046

which one has maximum efficiency autotransformer or transformer?? and why??

2 5415

how to test reverse power trip?

3848

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

Anglo Platinum, Narnarayan Electrical,

1787

Why we use startor to the motor?

Bhel,

5 7287

how to minimize earth resistance upto 2Ω, if the resistance is 6 Ω ?

1426

Why the voltage n frequency of the incoming generator is kept slightly higher than d grid voltage n frequency while synchronization ?

4 11532

Advantages of using generator circuit breaker (GCB) scheme in a power station ?

Gridco,

4708

What is d main advantage of using double circuit 3 phase transmission ?

UHG,

1401

Which formation is better in transmission lines - horizontal or triangular and why ?

2 3193

Advantages of using bundled conductors ?

3 4150

how to find the torque of the single phase synchronous motor by doing an experiment

1492

pf of synchronius motor is unity, is it axact(=one) value. ?

1 2847

if the stetor speed (N S) increase by 20% then the rotor speed will be increased by 20% is it true. ?

4 4719


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Un-Answered Questions { Electrical Engineering }

How the over load setting for HT Motors calculated-provided in Numerical Relay

1164


What do you mean by the zone of protection?

601


Testing procedure of DG alternator stability test

918


Shall I use 40A semiconductor Fuses in 32 A SFU ? Frame size is same. What Happen if Fuses burn on SFU?

1584


how can check the resistance of battery contact?

1745






What are the main parts of central chiller plant? Explain the function of each stage.

4292


induction 3 phase motor terminal connection

2027


how we calculate the dick for a pole?

1695


How to measure the Harmonic Distortion of UPS ie THD?

1719


can we use ZNyn11 transformer instead of Dyn11 transformer in distribution for effectively eliminating harmonics from the industrial loads.

4422


The sodium vapor lamp is not glows when it is connected a distance of 5 meters above from gearbox, why ?

3177


For high frequency application we use which transformer?

1325


WHat is the general checks required for Dry type transformers

1630


What is the use of Surge Capacitor in LAVT?

12858


Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.

1649