Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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

211

Can Anyone suggest the Standards (IEC or IS) for selecting copper current density?

201

our plant maximum demand has 500 kva.need to suggest me to maintained pf 0.98.how much capacitor bank will be connect to the supply line.

1 411




How to calculate or formula to calculate rhe power in 2 phase system ??

253

The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.

209

What is the function of the generator exciter?

208

what is current overloading in stack

273

Railway Basic electrical engg technical question with answer

Indian Railways,

1 369




What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?

260

Can we use 230VAC, 63A MCB for 120VAC, 63A supplied heaters load?

246

Application of statically induced emf

979

Why we make earth connection with Transformer Body and What will be the minimum size of copper wire as per code with respect to KVA rating of Transformer?

285

What is formula of capacitor for 1-phase power connection.how to improve PF. Suppose I want to connect capacitor in refrigerator to reduce power consumptions.

253

What are the no-load losses for the 11000/415V transformer with the following rated capacity? 1.1500 kVA 2. 2000 kVA 3. 2500 kVA 4. 3000 kVA

261

when ID fan will immediately stop through VFD what exactly cause and problem the ID fan

215


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Un-Answered Questions { Electrical Engineering }

to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power

775


what are the interview question asked in wind mill about electrical

1224


how solar power plant energy meter multiplication factor

814


Single phase and threephase power calculation

909


What is contract demand in solar system?

247






Distribution transformer we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral,we can not connect separate body earthing pit to other earthing pit but we do metal glanding in secondary side cable termination in both side, transformer and PCC panel (LT Panel), is this safe for transformer and other equipment?

505


what is the difference between active power and reactive power and apparant power in practical as well as theoritical

730


Is there any relevant technique to produce power from light and heat energy of the sun simultaneosly from same rays of light?

716


What is dynamo function in DG sets and draw block diagram?

698


What is Load sharing of Transformer ?

817


does not the circulating current in a transformer affect the flux distribution in the transformer core

695


How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.

1051


can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.

947


how to design the heater in temperature control unit to heat 50KL of water?

710


what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?

962