Interested to Buy Any Domain ? << Click Here >> for more details...
what is the diffrence between single phase and three phase
- 6 Answers
- 10236 Views
- I also Faced
- E-Mail Answers
Answer Posted / johann
assuming several neglected-to-be-explained-here electrical
theoretical 'things'.......imagine there is a 3
pole "electric motor"....and, if you would turn the
armature (the centre part with the shalf sticking out on
the one end) of a three pole (call them pole "1,2&3")
electric motor fast enough, a voltage is generated at each
of the three terminals on the outside of that motor.
(generator, ok?) Now, the 3 poles are physically 120
degrees seperated from one another. (how? draw a circle,
360degrees, on a paper and devide that circle in 3 equal
parts like a pizza....that's it! that is the position of
every pole, 120degrees apart..) Each pole is responsible
for the generation of a "one"-phase as
the 'circle/armature' rotate round an round. Each phase is
electrically/mechanically/mathematically following the
other with 120degrees or one third of one revolution of the
armature. if you consider the three phases together in an
electrical system you talk about 3-phase system. to over
simplify a little...., at your house, your neighbour's
house and their neigbour's house you find most probably
they say they have all 'single phase power'.....Why? easy.
the three phases that are generated are individually
directed to every house!"1" to your house, "2" to your
neibour's house and "3" to their neibour's house. each
phase considered by it's own is called "single phase".
understand? If you take the output wire from phase "2" and
touch it on phase "1" you will see and hear a big
explosion. Why? because you are electrically doing
something that can be physically compared to taking the
physical pole number '2'..., use terrible force and
squeeeeze it into the physical position of pole number '1'
of your eletrical 'generator'....physically that is
impossible, therefore you get a big explosion
(electrically) because it is impossible to force one
electrical phase ontop of another. your bycicle's tire
can't put the top and the bottom on the road at the same
time UNLESS you use destructive force. myyid_j@yahoo.com
phew! does that make sense? if you do not undertand mail
to above address and will try again... ":)
| Is This Answer Correct ? | 0 Yes | 3 No |
Post New Answer View All Answers
how the phase convertor changes the no. of phases
what is load vs Torque curve & why it is used?
can anyone send me some sample question regarding power grid corp
what is 30-phase of transformer
Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.
why industry prefer ht motor instead of lt motor.
Control wiring of a dol starter for forward and backward
What is DC series motor?
How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.
Explain the operation of variable frequency transformer?
What is the formula to calculate a three phase alternator
what is The difference between national electrical code and I.S.Code (electrical) and what is the value of NEC in electrical engineering field
Give two basic speed control scheme of dc shunt motor?
what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group
If a surge divertor is required to be protected by 32 amp C Curve Circuit breaker does this limit the amount of protection from surges that you will acheive
