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Electrical Engineering Interview Questions

how to calculate

688

Safety of dry type transformer

Icon,

873

Difference between control junction box (cjb) and power junction box(pjb)?

1269

documented proof that aluminium bus bars are better than aluminium cables

578

what is the efficiency of thyristor

644

what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?

632

what is difference between bus coupler and auto transfer switch

1194

what are types of ups?

824

Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?

559

how to setting voltage RTCC panel

667

how to caculate cable size for diff types of loads? if anyone know the calculating procedure please tell me

539

how to calculate current carring capacity of cable and cable selection? 1) copper flexible cable 2) copper armoured cable 3) Aluminium cable

529

What is the function of under voltage release ?

510

how to find the voltage drop

972

Post possible questions for Power Factor Panel FAT / SAT

537

Un-Answered Questions { Electrical Engineering }

What is Antipumping Function & If we have C.T how we find the Ratio ?

1045

In general bus riser follows the bus section in SWGR. What are impacts if bus section follows bus riser?

606

what is stper motor

1425

how oil in the MOCB was reduced compared with OCB? what are the features of the MOCB?

1849

What is an 86-P or an 86-A trip

1021

what are the breakdown voltage rating of mini- curcuit'transfarmer!

1184

what is frequency response?

161

hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx

1049

why high speed tripping relay will be used in tripping circuit why not normal relay

396

How many types of oil using in H/T & L/T Oil Circuit Breakers. need Explenation ?

1835

HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA

918

Pls Breifly explain about UPS (Inverter,Reserve,Rectifier,Float voltage,Boost voltage).

1835

Write the analogous electrical elements in force current analogy for the elements of mechanical translational system.

207

diff. between tension mode & speed mode

1305

i have to install a HT panel, what components, I have to use in this and what will the diagram of that diagram,please tell me each and everything.

773