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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how i run d.c. moter with solar panel without use of battery?

1 2012

Can anybody just suggest about the scope of Electrical design with ETAP software?Just guide me?

2608

why all selected supply voltage are multiple of 11

Gamesa, Suzlon,

1 3754

If SFU is Switch Fuse Unit, What is the expansion for FSHF in Electrical Engineering?

1620

How to calculate Busbar Thickness for Different type of HT/LT panels

1 5084

How to select cable rating for HT/LT Panels

Alstom,

1 10400

What is notching in dc machine?

1050

what is the difference in between short time and continuous rating?

1 3533

There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.

GMR,

1238

why restricted earth fault protection can not operate for phase faults??as there will be a current in secondary of ct,when a phase fault occurs!

GMR,

1 1730

Why not connect relay Y phase for over current and earth fault

HB,

1 2773

What is dynamo?How it works and what is the function of dynamo in a DG.

1727

why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

HCL,

1158

What is dynamo?How it works and what is the function of dynamo in a DG.

Amrapali,

3 10668

why we ht line cable size small rather than lt cable.

Aster Teleservices,

4 5641


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Un-Answered Questions { Electrical Engineering }

What is the control action?

237


Explain the functioning of diode?

249


WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?

3102


Why we do 2 types of earthing on transformer (ie:)body earthing & neutral earthing , what is function. I am going to install a oo kva transformer & 380 kva dg set what should the earthing value?

251


What is the universal motor?

259






Dear all i am kumaravel. now in chennai. my work is control and relay panel auto cad designing.up to 11kv to 400kv then question is i am improving my knowledge. i want some books name and auther are available for this C&R panel related. plese any one help me

1034


how to calculation increase power factor for single phase

1385


Do u know any one? how to find out in motor rated amps? formula?

1069


why does make gain margin and phase margin on same plot.?

1161


what are the available sizes of pin type terminal lugs in the market today?

995


How to select, design,size & calculate for 11 KV/33KV/66KV/132KV/220 KV/440 KV circuit breaker for HT side of transformer protection/HT distribution protection?

1790


how we design a pannel to start 10HP motor with the help of star delta starter?

1306


Pl.brief me any electrical major fault you have rectified.

1099


what is the purpose of bypass mode in energy lighting transformer?

1635


Pls explan the OLR setting in VCB at HT yard

1727