Answer / ziyad

there is no engineering reason for that.
the reason is economical.
since they start generating by three phase and the following
designs was based on the first models, and it is difficult
to change the system that already exist so they continue to
design three phase generators and transmission systems.

Answer / ben

IN CASE OF 3PHASE SYSTEM,LENGTH OF CONDUCTOR NEEDED IS LESSER,,ALSO REGULATION IS GOOD IF WE USE 3PHASE..

Answer / manikandan

3 phase system generating & transmission is economical,all
the machinerys are working in 3 phase supply ,so why to
generate 4 phse& 5 phase,if generate 4phase the
transmission &distribution is very difficult

Answer / srikant

DEEPAK sir
what r d reasons 4 it being highly efficient.pls ellaborate

Answer / ganesh

because the 3 phase
tends the 120 deg
phase sequence to
the high loads

Answer / ashok mishra

because it is easy as generate as of 120 degree angle

Answer / deepak24

it is because three phase system is most efficient system.

What is the Difference between Ac Drives and Dc Drives? According to application, speed, Torque, cost, Reliability, Construction, Motor etc... Thankyou !!!

0 Answers   IFFCO, IIT,

what is the std. earthing resistance for 440V system or m/c, 33000/440 Volt substation? What is the std.?

2 Answers  

what is megar testing

4 Answers   NASA,

how can electricity is produced without water

6 Answers   Bescom,

how LVDT works?

2 Answers  

why is  use the star and delta connection and difference

1 Answers  

What is the Ohms low calculation

2 Answers  

i need list of swg(standard wire guage) or area of conductor v/s current carrying capacity of conductor copper & alluminium...

0 Answers  

what is d check in dg 1500kva

0 Answers  

Why transformer, generator, ups rating kva?

2 Answers  

what is formula for calculate thermal overload in new numiricalrelay( not in bimetal relay)?

0 Answers  

what happens when the phase and earth wires comes in contact? and why

2 Answers