Whats the difference between three phase and single phase?

Answer Posted / naveen kumar k s

in single phase system in our india 230v &three phase
system 415V BECAUSE IN *SINGLE PHASE WE CAN USE NEUTRAL
POINT THIS IS THE RETURN PATH OF THE CURRENT *THREE PHASE
SYSTEM R-Y-B WE CAN MEASUre THE Vg Wrt R-Y
Y-B
B-Y BUT ANY WAY WE
CAN'T MEASURE WITH NEUTRALL(IN 3Ph IT SHOULD REEQUIRE TO
SHOWS 460Vg BUT IT CAN'T SHOW BECAUSE RMS VALUE OF AC)
THAT'S WHY THE RMS VALUE OF P-N Vg & P-P Vg IS DIFFERENT
BECAUSSE OF THIS REASON OUR MEASURING Vg DIFFERENT

Is This Answer Correct ?    2 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Can anybody inform me about the pattern of ECIL GET( Graduate Engineers Trainee) interview for Electrical students? Will there be HR round as well? I thought of preparing for 2 to 3 subjects thoroughly. Will it be sufficient? Please share your thoughts.

1703


What is the formula formula for Busbar sizing and what are the things to be consider for Busbar Calculation?

1979


Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?

1031


What will be result if we connect LT votage to the terminal of HT motor?

1703


What is voltage divider rule?

697






What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

1732


What are the protections for safe running of electric generator?

1707


what is a reactive power? what is the relation with power factor?

1633


List the disadvantages of constant k filters?

1060


draw singleline diagram of star to delta and dol starters

1779


In convertor can we use rectifier thyristor in place of invertor thyristor with explain.

1372


Define conversion efficiency of a power amplifier. What is its value for class c power amplifier?

777


What is the criteria for selecting the voltage classes of an AC Induction Motor.The KW rating above/below which ht/lt selection is made may be provided in details.

1163


how to increase or decrease speed in DC shunt motor by DC convertor

1721


Hi,I am working in abroad for more than 3 years in a company operating with 11kv and 6.4 MW power. I need c licence in India,can I? some other says only i can get if i work for 2 years in india only! anybody kindly clarify by doubt.Thanks

1459