in single phase we get 220 volt and in three phase 4420 v
why this
second Ques= in case three phase star conection our
neutrul becom disconect what happan

3 Q=== a three phase house load and have unbalce load on
different pahse diffrent current eg phase a 7A b 8A c
5A and voltage is 440 than how calculate it total load in
kw pl give formula thanks

Answer Posted / deepakindi1

Guys nothing wrong in the question though it is in shortcut
but u can understand it.

Is This Answer Correct ?    3 Yes 2 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

in general it is observed in power stations, the tertiary winding is used in higher rating Y-Y auto transformer but not in Y-Y power transformer. is the tertiary winding is compulsory then why it is not using in power transformer 

1297


Is any generator is developed which is operated with out diesal or other expensive source?

1640


Merits & Demarits of Oil circuit & Air circuit breakers ?

1613


In Power Line Communication (PLC) the wave trap is used to block communication signals from entering neighboring lines. My question is this: Why do they allow for different filtering arrangements on these wave traps? Isn't it always going to be a low pass filter since we want the power frequency to go through, and the comm signal blocked?

1485


I want to merge a cable..in between two metering Cubicals which contains CT's and PT's and Energy meter..before taking merger..what are the common things required?

1132






Why front mounted CT polarities are always towards breaker?

1523


During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP

1411


could anybody able 2 send me jindal steels previous papers fr electrical steam....pls send 2 my id if possible....sirisha.shaik@gmail.com

1588


In Power cable specification what is U0/U and Um.

3223


What are the factors influence the choice of an electrc drive?

1597


What is different between Difnit time and instatous over current relay

1982


Why transformer used in UPS??

1034


How PSV sizing being done

1823


how to calculate magnetic force genrated by a coil ?

1737


what is the voltage between earth & neutral in 3 phase electrical connection.

1467