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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Ratings of power transformer,Distribution transformer.

1612

why we are using Load factor?

1955

what is legal process of dg set?

Dutron Polymers,

1672

why three phase capacitor takes unbalanced current in capacitor bank?

Aggreko,

1495

In the market there is availability of MCCB & ACB (800A), So, Where i can use MCCB & ACB for the same Rating?

1 2181

How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.

1497

Why the symbol of register is "zig zag"

Suzlon,

1586

why the frequency and voltage in india is 230v and 50HZ. when compared to USA say 110v and 60 HZ.

Alstom,

1446

what is v/f control in VFD?

1550

two phases with neutral supply can be taken in 3C X 10 sq.mm cable .

SPCL,

1427

how to calculate insulation level of transformer?

1687

What is the difference between line drop and percentage line drop?

Suzlon,

1567

Alternating voltage and current is which type of quantities?

1 2154

difference between high and low impedance BUS BAR relay??

1618

3phase cable calculation formula by motor load

1519


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected

2267


How can we increase fuel-power ratio of any DG set?

1816


Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

2168


why output is out of phase in case of common emitter?

2143


For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation

3284


How to calculate wire length,size & current? ( related to control panel)

2179


what about GD square and its important for motor design?

3817


What are approaches to tackle sedimentation problem of reservoir?

1022


What is a copper loss or i2r loss pc?

1150


I want to put this query to SENIOR & EXPERIENCED ELECTRICAL ENGINEERS. 1)I want to know about the control circuit diagrams for control panels. I found it difficult to understand. Is there ant booklet through which we can learn the circuit diagrams? 2)I want to learn about conduiting, laying cables, preparing cable schedules and various techniques which is the part of building infrastucture(construction field). I don't have any experience in this area. I have experience in control panels only. that's why i am not getting any opening in building infrastucture (construction field).Can I get the job in this field as Trainee Engineer? How to enter this field? I need job in PUNE

1937


What are the difference between normal application Transformer and Solar application Transformer?

1656


ow can i get certificate of competency as electrical supervisor and my diploma in electrical engineering from jalgaon.

2362


In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

2123


hi every body i am master student in control engineering and my project is slip control in trains i assumed a Dc motore as traction motor but i don't have characteristics of this kind of motor that is used in train. i want from every body if he or she has the characteristics or information about Dc motor that is used in train give me those information or technical characteristics .

1493


what is KA rating and how can we choose switchgears on applications

1445