Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is VFD and how to save the power by using VFD?

7 8500

How I design capacitor bank for different load.7MW connected load.

Samtel,

3 6580

its Kva and Kv are same?

3 5257

If one d.g. is unable to take full load of system, then second d.g. will take care of partly Load.for this condition RPM of both DG set should be equal.By using Synchronization panel RPM of dg sets are match, is it true?

1 3175

1500Ah VRLA battery,if its weight is designed 125kg during maufacturing its weight is reduced to 85kgs,What will be impact on AH capacity,life & economy?

Bajaj,

1732

why in motors dc extitaedtion is prefer

1 1671

The capacity of the transformer is 20/25 MVA, Ratio is 132/11 KV, Vactor group YNyno. and impedance is 10.07%. As per the calculation the secondary current is 1312.2Amps. The maximum fault current the transformer should sustain is 13.030KA. How many times the transformer should sustain the maximum short circuit current of 13.030KA over a period up 1 Year. The transformer is repaired one & 10 Years old.

1 8476

How to derive detailed design of Suitable bus Bar for 100A for 6.6KV?

1420

Why in Digital Megger for finding Insulation resistance,-ve is applied to core or conductor and +ve is applied to ground.

ACC,

1 3142

During Millivolt drop test current leads are applied in the extreme ends and voltage leads are given just before the current leads.. what will be the difference if voltage leads are given in the extreme ends? and why?

1 5889

why we use MV panels??? what's r all the needs

4 17206

What is the difference between generator and turbo generator - related to power gereration

1 4890

what is the advantage of NiCd battery over Lead acid battery?

1 3292

The power factor of the fixed load is 0.8, now the p.f is varying from 0.8 to 0.5.

1554

what will happen while giving 2 phase supply to 3 phase motor

5 5518


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Un-Answered Questions { Electrical Engineering }

What is the HVDC Transmission System? What are the conditions applicable to lay an HVDC Line?

1841


How to perform a DC resistance test In Alternator and their proceduces?

1045


please send me latest & previous years question papers for IOCL Technical level questions

1387


Power factor =1.000 at factory in supply. However, PF = 0.8 at motor end. Current = 100 Amp, Voltage = 400 V. What is the power distribution loss? Can I reduce it by adding capacitor at the load feeder?

1579


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

1535






how can we phase identification in a distribution line,how we recognise that which phase is coming for a house hold connection.help me............

1565


I am using submission of two ct in one and half scheme for 67/67N protection. Both CTs star point is grounded separately near ct box.Will two point ground give wrong tripping to 67/67N during fault or no matter.

1622


nwhat are the main Components of servo motor?

1596


we have a rewind motor of 2Hp,2800Rpm, 220Volt AC. how can we choose the running capacitor for this motor, any formula for that?

1467


How phase to phase voltage comes 440V.

1438


I have two PLC processors. I want to communicate both processor with each other. How i can do so?

1713


What is minimum phase system?

648


What is the unit of charge and current?

606


The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is

673


please send me last 5 year interview questions

1637