Answer / vijay balu raskar

1 phase means it carry currents by 0 degree phase shift and 3 phase means it contains 3 phases which is 120 degree apart from each other.

3 Phases carry currents equally in each phases by 120 degree apart.

Answer / sunil

1 PHASHE supply used where consumer need 230 v supply & for consumer which need 440 v supply 3 phashe used

Answer / simon peter

In india there is a system known as colour codeing. If we r dealing in 1 phase v take red wire as phase & black wire's colour as neutal.Same type of coding is done in 3 phase I.e red,yellow ,blue. They r 120°electrically different during production from alternator but the neutal wire's colour code remin sme as in 1 phase.....

Answer / guptar48

Single phase used normally for domestic purpose where we
can use sigle phase equipments and 3 phase used for
commercial where we can use 3 phase machines.

Answer / viswa

phase angle is varied by 120 degrees...
earth line is used to protect in 3 phase lines..

Answer / vipul

In a single phase system there is a one phase can used to
supply the system & in a three phase system there is three
phase(R,Y,B) can used to supply the system

I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?

0 Answers  

what would u consider to be the basic purchase order information you would need to proceed with a cable inspection assignment?

0 Answers  

what is meant by Hrc fuses.?In the distribution system different rating hrc fuses are used for tranformer(which is 3k,6k,10k,15k etc).what is k?.plz any brother tell me about k?

1 Answers  

If I need to purchase a step-down transformer (from three phase 33kV 50Hz to 400/230V), what additional information do I need from the main supply power line?

1 Answers   MahaDiscom,

wt wil happen if a 120kv line is grounded

4 Answers  

why core is useful for a transformer ?and also in its operation ?

0 Answers  

in power station what is the electrical circuit length of spacing between power transformer and lightning arrestors,for the voltage system of 230kv,110kv,33kv,22kv,11kv?

1 Answers  

what is the working principle of soft-starter & how it diff. from VFD ?????????

5 Answers   L&T,

what are the alternator cooling system? how it is represented?

1 Answers  

megger how much voltage will produce ?

4 Answers  

Is there any problem ,if R-Y-B voltage is constant , but the air compressor taking one phase high current.what is possible causes.the said compressor is very new.(55kw).

4 Answers  

what is relation between torque and speed / rpm?

1 Answers