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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what voltage to be select in megger for insulation resistance testing to L.V , H.T cables,motors and transfomer?and ohms valve should be giga ohms only or what?

Deevya Shakti Paper Mills,

1 15601

how can motor both beasrings insulation resistance can be check?

GE,

2032

2.5mva transformer is installed in our company with oltc but it is not working in auto mode ,it is operative in manual mode control wiring is done how can i rectify it?

Imdaad,

5 7348

what is the diference beteween dedicated earthing & body earthing?

1 5973

can we use 3 phase UPS for Motors and Other Machines

ACC,

4 10505

how does a current carrying conductor posess a magnetic field. what is the reason for the production of electro magnetic field around the conductor

Vizag Steel,

2 7804

How to know Resistance and Reactance value of main and aux winding of single phase capacitor start capacitor run induction motor to find capacitor value?

Siemens,

2045

how motor should be connected i.e star-delta or star-star or delta-delta ?

GSE,

3 6000

can i used 400A SFU (for the use of PA fan motor),if my BUSBAR rating is only 315A?????answer me quickly as possible.......thanks

1 4098

what is circulating current in parallel transformer???plus how it is generated ???plz explain in detail.........

2 6019

suppose if oil in transformer is not used than what constructional change you will do,for insulation and cooling?

ABB,

2 6204

why dhyedration test required for transformer oil once in a year

1 4155

EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?

1897

what you mean by vector group of a 3 ph transformer

1 3262

can transformer of different kvas be paralled

2 5109


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

How cable from Kit-Kat to main switch, from starter to motor are designed?

2123


The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.

1984


we need a ntpc previous papers

1936


If I want to buy a new Xformer for my plant what are the main parameter will I need to check?

1901


What is the formula to calculate the no load current of a single & three phase induction motor

2283


How to check the thermocouple is correctly connected to cable for K type? (i,e positive pole is connected to non magnetic conductor and negative pole is connected to magnetic conductor)

1717


What current position are you holding in your current company?

2079


whit is 33kv power 300*300 cable full current with formula

1805


In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..

1950


1600kva capacity Transformers how the bucholz relay,Oil temperature,winding,surge relay relays setting are to be done

1912


describe the Operation of induction generators from bus bars

2325


Different types of relay fault which phase sequence??

911


Explain what is clipper and clamper circuits?

1177


What is the height of DA, DAL, DB, DC & DDE tower?

2348


What is the fault or needs to be done when frequency in ac drives is not changing?

1662