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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 2643

What is effect of over voltage and under voltage on ACB

EFS,

1901

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

TD Power Systems,

2172

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

1940

why we store only dc in batteries ?

1 2797

why we dont store the ac power in battery?

TCS,

1 2775

How to synchronization will be done between two DGs ?

1724

what is pmu

Alstom,

1 3190

What is Tan Delta Test

Power Grid,

1 2722

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

Crompton Greaves,

1628

Whai isPCC and MCC Difference?

Pretech Plast,

1 2322

Why earthing is necessary for any equipment?

1673

How we can calculate the life of Lead acid battery

ABC,

1734

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.

1750

How much current in 100 kva Transformer HT & LT side

1 2270


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what are the different methods for the starting of a synchronous motor.

1101


why the neutral line is not giving shock to us if we touch it ?

1728


Merits & Demarits of Oil circuit & Air circuit breakers ?

2039


We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

1472


What is dynamo?How it works and what is the function of dynamo in a DG.

2525


Electrical 'C' license full abbreviation , and full form

1839


3phase motor can be used as a Prime mover for alternator.

1558


What will be advantage if we put some load in neutral of grounded star transformer & loadshortcircuit current,rated current of cable & MCB with example?

1811


what is negative and zero impedance in 3 phase induction motor ??

2128


what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?

2025


In case of salient pole alternator when number of poles are 4 or more than 4 it helps the flux wave to be sinusoid as air gap length is increased from center to tip , but if the number of poles are 2 how does the flux wave is sinusoidal?

1934


How do I calculate a WTI CT ofa 1250kVA 6600/400V transformer

1715


What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?

959


in our all power plant have connected in grid and grid voltage and plant voltage is same, but as per as electrical concept the power will transmit from high potential to low potential but here altough same,then how power transmit from power plant to grid.

2296


Can we check ELCB constantly from R1 to R8 phase in 1 no DB?

1651