Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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

116

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

120

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.

1 206




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

142

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.

105

What is the function of the generator exciter?

113

what is current overloading in stack

165

Railway Basic electrical engg technical question with answer

Indian Railways,

1 211




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

158

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

152

Application of statically induced emf

317

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?

174

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.

149

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

159

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

122


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Un-Answered Questions { Electrical Engineering }

What happen Grid EARTH plat got cut.

940


How much ph is maintained of water resistance starter for slipring induction motor ?

1099


how is positive, negative, zero sequence is happen.. how is effect on 3 phase system

478


Metal covered multiconductor cables shall employ a marker tape located within the cable running for its complete length in lieu of cable surface marking. Is it true or false?

794


HOW MUCH CURRENT DOES SYNCHRONOUS MOTOR TAKES AT SYNCHRONOUS SPEED IN NO LOAD CONDITION ?

623






What safety precaution are to be taken for avoiding electric hazards ?

647


what is the ranje of HT cabel and LT Cabel.

1461


What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?

574


I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?

449


Benifits of 3ph 4 wire metering over 3ph 3 wire

1182


surge tank, hrc fuse, earthing transformer, firm power objective type

149


what is the relative size of single and three phase?

556


can u tell me the promotion from oiller to enginer

582


what is package substation.how many types they have

805


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

142