Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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

1 2504

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

3251

why all selected supply voltage are multiple of 11

Gamesa, Suzlon,

1 4426

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

2023

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

1 5740

How to select cable rating for HT/LT Panels

Alstom,

1 12156

What is notching in dc machine?

1477

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

1 5504

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,

1608

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 2239

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

HB,

1 3380

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

2065

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,

1561

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

Amrapali,

3 11810

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

Aster Teleservices,

4 6773


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Un-Answered Questions { Electrical Engineering }

if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

1132


HOW TO DESIGN THE body EARTH cable(Copper Conductor) size for 60KVA UPS?

1533


Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

1300


sir i had plane to do some project with the base of hopkinson test in AC supply its possible

1336


What are motor generator sets and explain the different ways the motor generator set can be used ?

686






Working of microwave oven?

1764


how to calculate the no load current in transformer?

1953


List some examples of renewable energy?

754


I use 20 nos led tube 4feet, in pathway 100mtr approximate, so what size cable i use for lighting

1015


As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

1360


wht is embedded systems? what is new inthis field?

1507


I want to ask that is there any relation between current denesity of copper and material purity. also is ther any standard which defines the standard current denesity of material.

1441


Define active filter?

572


IF HT CAPACITOR IN ON POSITION IS THERE ANY LOSSES I.S I SQURE OCCURS IN THE SYSTEM

1580


explain types of electric welding and its applications

1177