Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to work current transformer and potential transformer

Adhunik,

1 4335

what is main difference between live tank and dead tank current transformer?

Atul,

2 27125

what are the different types and applications of compressors?

1 2778

compressor compresses air means exactly what happens?

2 3818

can we individually produce electriciyt

1 2783

what is the defination of 'Mass' & 'Weight'

3 7585

Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.

4 6282

what is the maximum load in MDB,SMDB and DB

1 9637

how to wiring 20 hp motor get completated?

Alchemist,

1 3628

wich type of cable is selected for wiring of 20hp motor?

Alchemist,

5 8430

give me list of material for wiring of 20hp motor?

Alchemist,

2 4450

What are the various types of BUSBAR Schemes? explain each

NTPC,

1 4589

What are the various types of BUSBAR Schemes? explain each

Thermo,

2 34955

my motor rating is 800HP, 128Amps, 3.3kV. What is capaitor bank i can use for PF improvement to 0.990?

3 5091

What is the Power factor of DC Power system ?

9 37017


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Un-Answered Questions { Electrical Engineering }

What is the type of earth fault protection used in battery? explain.

1869


which type of motor is used in automatic swing gate

1575


Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

1653


Describe the test procedure to determine the vector group

1603


How to Decide the Location of Earth pit for Compressor in Oil Depo? and How to measure the resistance of earth pit Pls explain me with the help of Circuit Diagram?

1924






Explain forward resistance, static resistance and dynamic resistance of a pn junction diode.

638


how to calculate the cable current ratingand and how much of distance the rating will be ok will the distance is incresed what the action we take

1621


State magnitude criterion.

677


please send the IS strandard for electrical to sakthi_murugan86@yahoo.co.in

1831


define superposition theorem thevnin theorem ,norton theorom?

1810


DG cranking voltage?

719


Dear Respected sir how to test ABB REX521 protection relay by relay tester.

2306


how to setting voltage RTCC panel

1218


what is the Earth Voltages in Power Plants, Sub-stations, Industries, Residential & Commercial Buildings.

1658


Good morning: I'm looking for some informations about the OLTC or the LTC: I wont to know what the function of the tie-resistor in during the operation of reversing/coarse operation Cordially

1574