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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Fault current shall be part of tech specs of power cable or not?.

DAE,

1 2803

What is effect of over voltage and under voltage on ACB

EFS,

2042

Why is tan-delta test and capacitor measurement done on alternator?

TD Power Systems,

2277

Why MCCB is Getting tripped sometimes when there is no load in the Midnight ?

2081

why we store only dc in batteries ?

1 2964

why we dont store the ac power in battery?

TCS,

1 3038

How to synchronization will be done between two DGs ?

1835

what is pmu

Alstom,

1 3348

What is Tan Delta Test

Power Grid,

1 2882

What is the settings of distance protection relay in 400 kv line

Crompton Greaves,

1769

Whai isPCC and MCC Difference?

Pretech Plast,

1 2539

Why earthing is necessary for any equipment?

1800

How we can calculate the life of Lead acid battery

ABC,

1854

A commercial Building is designed with 14th floor levels with indoor substation of three phase transformer with rated capacity of 1000 Kva.The transformer delivered 65% of its rated capacity at 0.67 power factor lagging.Because of low power factor, the power customer was penalized and certain cost was charged accordingly based on every point percentage lower than 85%.This situation may repeatedly happen on the succeding energy bills of power customer.The power customer is desired to improve its historical power factor of 0.67 lagging and no further penalty be impose by the local power company on the next bill. Q: Identify the appropriate solution you want to offer to Client?.Justify SCIENTIFICALLY and MATHEMATICALLY the principles behind the solution.

1851

How much current in 100 kva Transformer HT & LT side

1 2434


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

How npn and pnp transistor works

1205


What is a signal flow graph?

1146


why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?

2156


what is the chiller and working principal

2398


Plz tell me how we can find that particular company has vacancy or not

2343


what is the difference b/w ground & virtual ground?

2367


Can we use both Electrical & mechanical interlock between tow breakers? if yes how, please explain

1581


Will any motor burn if voltage provided is lesser than the rated voltage???? If yes, then how is speed control possible with voltage control

2222


What is reactive power and where it is used.

1760


How Can You Relate Power Engineering With Electrical Engineering?

1301


Why do we need interlocking in a HT metering or Ring main unit switchgear?

2094


What is force on a conductor in a magnetic field ?

1147


The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.

2047


what is difference between 2 pole structure and 4 pole structure in transformer yard

6145


HOW TO CHECK THE VECTOR GROUP OF A TRANSFORMER YD11?

3675