As per principle we say in three phase supply ,the voltage is producing by pha

As per principle we say in three phase supply ,the voltage
is producing by phase angle between two phase so two phase
is needed means then why we using three phase ?

Question Posted / kumar

2 Answers
3386 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

As per principle we say in three phase supply ,the voltage is producing by phase angle between two..

Answer / vijendra joglekar

As we know the sum of phase angle difference in poly phase
circuits will be 360 degree
i.e
Assuming that the phase R has maximum induced emf at this
instant the emf of other phase will be less then maximum value
when phase R is rotated by 120 degree in anticlockwise
direction phase Y will come in the portion of phase R and
its induced emf will be maximum further when phase R rotates
by 240 degree phase B will occupy the position of maximum emf.
Hence we have to use the three phase RY B for i mean when we
connecting poly phase circuits

Is This Answer Correct ?

0 Yes

0 No

As per principle we say in three phase supply ,the voltage is producing by phase angle between two..

Answer / baskaran.r

in a given frame size we can get any number of phases but 3
phases are high in utilizing the capacity without much
complications. in a 3 phase system the phases are separated
by 120 degrees. in a two phase system the angle between them
will be 180 degrees which is the same as single phase only.

Is This Answer Correct ?

0 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

Draw a circuit diagram in which if button is open we can use socket and bulb as a series test circit and if button is close than simple we can use socket as any load purpose.

0 Answers

what is the ka rating of mccb. and how it is decided .

3 Answers Napino,

WHAT IS THE DIFFERENCE BETWEEN RESISANTANCE AND IMPEDANCE IF IMPEDANCE IS MORE THAN RESISTANCE AT SAME VOLTAGE CAN WE HAVE RELATION DERIEVED BETWEEN THEM

4 Answers

how are reversing the direction of rotation of dc motor

0 Answers

purpose of flux relay for turbo generator in power plant

1 Answers

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

0 Answers

X/R ratio in 11kv transmission line is?

1 Answers RRB,

how to check the LRS resistance .......................

1 Answers

What is the difference between MCCB & MOCB?

1 Answers

i have 400/230v transformer and didnt done the neutral eatrhing. i connected one lamp to one phase and neutral to the earth. but the lamp is not glowing. again i connected neutral to earth and repeated the same. then the lamp is glowing. in the first condition i tested with a line tester also, at that time the tesrer is glowing what is happening i dont know can any one help me?

1 Answers

Why we oil in tranformer/

5 Answers

Vibromotor 252MV 1/4HP2P..what is mean by 252MV?

0 Answers

For more Electrical Engineering Interview Questions Click Here