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Electrical Engineering Interview Questions
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When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?

UOM,

1136

Importance of fault current in power transformers and how to monitor the same? How is it different from winding temperature?

Impulse,

1142

3,12,24,33,_ ,75,150 Find the missed number in this sequence

HCL,

2 17889

What is given by the definition in BIL IMP/PF = 950/395 kV. This was found in a name plate of a power transformer.

AES,

1616

can we keep open the secondary of current transformer?

Jyona Power,

1 1977

is dc transformer is possible ?

Jyona Power,

4 3465

is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.

1021

why we generate 11kv power supply in generating station?

DBG, NTPC,

1 2711

what will be the effect if you were using different brands of outlets?

TESDA,

1293

What will be the output of an alternator ,if the field current is single phase ac supply.

DRDO,

1 2412

Question about ct secondaries connections?

1 1921

What is the function of turbo charger in generators

1 2582

Which rccb 30ma,100ma,300ma sensitivity should be used in domestic line and what is difference, advantage and disadvantage of all three

2 15698

sir, in a industry present pf is 0.54 pf 25hp power is there its want improve 0.9 pf. which suitable capacity capacitor is suitable please inform me.

2 2485

what will happen if synchronous machine rotor fed from single phase ac supply 

1135


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What is evaporator & condencer & compressor

1497


what is 30-phase of transformer

1539


how many joints are allowed in underground HT cable of 1 KM

1106


Is there any Institution for giving M-tech in Electrical engineering for those who r in service? Give the details please.

1403


How many types of losses occur in a transformer?

477






hi friends this is a newcomer in your community of enthusiastic peoples. i am preparing for SSC (CPWD JUNIOE ENGG EXAM FOR ELECTRICAL) pls guide me on the same how to crack it? PLS LET ME KNOW IS ANYONE THERE WHO PASED IT? CAN I GET THE QUESTION PAPERS OF PREVIOUS EXAMINATIONS?

1588


PLEASE INFORM ABOUT THE IDEAL TEST RESULTS OF MAGNETIC BALANCE TEST OF TRANSFORMER 33/11 kv DELTA-STAR T/F

1625


What is NGR . What is the purpose of 10 sec ,60 sec rating of NGR.

1098


how to select energy meter? have any calculation?

2185


we have an energy meter in a capacitor bank panel, So should we consider it's readings as energy consumption on daily basis. (when capacitor bank doesn't have any energy losses)

1753


What is the dependency of stiffness on load angle??

614


from which formula we select a capacitor rating?

1452


What do you mean by cogeneration? What its working principle?

2580


describe the constructional features of an auto transformer and its principle operation

1629


what is the difference between switchgear and circuit breakers and is there any difference between outdoor and indoor switchgear and circuit breakers , and how would you differentiate between switch yard and substation and grid station . thanks

1539