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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to calculate KW what is the formula for KW.

Toyota, UU,

18 27124

What is the d/f b/w MCCB & MCB

ABC, LMN,

6 16279

what kvrah y we need to take the readind of that

1087

What type of tranformer generaly at soft wares like capacity 2000 kva 1800 kva etc iam confused it CT or PT OR distribution tranformer

3 3787

What is the use of conservater, bucchos relay, breather in a transformer?

Bosch, Wipro, Zadco,

8 22575

Can we use the 60 HZ transformer/rectifier/Motors/Coils in 50 HZ? if not so, why?

3 5178

why contactor not provided between output of VFD and motor?

Siemens,

6 16821

what is pressure relief valve?where it is used????

Mecon,

4 36394

DIFFERENCE BETWEEN POWER AND CONTROL CABLES

NCC,

9 34913

What is the megger value for ht

Electrical,

16 70780

what is derated current of power cable & what is formule to find derated current?

Thermon,

1 12585

what are cable earthing and bus earthing trucks?when and where they are used?

1 5922

in three pin pluge there three pins one is phase and second is earth third is nutral why nutral high diameter compare with phase and earth

Radiant,

10 14150

What is the diffrence between an ELCB(earth leakage circuit breaker) and RCCB(residual current circuit breaker)?which has higher degree of safety and why?

2 6434

what is the function of breather in a transformer

Areva, Bhel, RKM Powergen, Vijai Electricals,

29 99349


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Un-Answered Questions { Electrical Engineering }

What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?

686


What are two contours of nichols chart?

238


pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )

1801


Can you explain about TEE protection scheme?

1326


what is class of SPD and dittels of all class ?

1174






Explain marx circuit.

256


what is the difference between surge protection capacitor and surge arrestor

1367


What is the meaning of HT Trivector Meter ?

1529


How to measure the Harmonic Distortion of UPS ie THD?

1344


I want single line diagram for AMF & DG syncronizing panel

6007


tell me about roaster switch .& what is the function in transmission & distribution?

1771


Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more

1125


What is the formula for selecting the cabels according to load? How to calculate what sq.mm cabel to be used?

579


What does the term power factor shows?

240


WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

988