Answer / ashli

emf will be induced in a conductor only if there is a
relative motion b/w magnetic flux and the conductor.. when
ac supply is given to the armature of an induction motor a
rotating magnetic field is created(at synchronous
speed).now an emf is induced in the rotor winding and it
starts rotating. the direction of rotation is same as that
of rotating magnetic field but speed less than than syn
speed.. ie the relative speed b/w the rotor conductor n
rotating magnetic field is the difference b/w rotor speed
and syn speed ie slip. emf induced in the rotor and hence
the rotor current depends on the relative speed or slip.
that is how the rotor current becomes proportional to slip

Answer / k.prakashchandra

If the slip is more ,more voltage is induced in rotor ,hence
more current.Actually ,slip is proportional to current which
can be increased or decreased and not the slip.

Answer / guru101

Hey! The above answer is absolately Corrected, I have also
given 4 Rank.
But you must know about Relavite speed.

Here

Relative speed is a speed which is compare with other speed
for example.

Suppose,
You are running OPPSITED to Bus.
Your Speed 15meter/1min and Bus speed is 45meter/1min
what is Relative speed?
35meter/1meter is RELATIVE speed

AND if yor are runnig a side which bus are running so your
direction and bus direction are same.
and your speed 10meter/1min.
Bus speed is 20meter/min
so RELATIVE SPEED IS 30METER/MIN.

IT is very importants in this topics

how to calculate

0 Answers  

---

what is the principle of motor

6 Answers  

---

I FINISHED MY B.TECH IN EEE . I AM IN NEED OF A GOOD TRAINING INSTITUTE TO DO COURSES .. CAN ANYONE SUGGEST GOOD CENTRES IN TAMILNADU ,BANGALORE ,OTHER AREAS???????

0 Answers  

---

We have two 1 phase heating coils having same resistance of 25ohm, but during operation one takes 3A and other 6A Is it posiible Pls. explain

5 Answers   Bhel,

---

How servo stabilizer works.

0 Answers  

---

america 60hz electric supply is used; but india it is 50hz; why? and if we use 60 hz supply what changeg has to be done or all the equipment has to be thrown which has rating of 50hz frequincy

1 Answers  

---

how wud i know that whether i have to use unitized package substation or transformer?

1 Answers  

---

WE are using a 63A MCCB(SIEMENS MAKE) for one of the feeder in LV substation panel.It is supplying to a lighting & power socket DB.Settings in the MCCB is Ir = 63 * 1 , Isd = 8 times of Ir , tsd = 0.5 sec( I2 t off). Sometimes this MCCB is tripping .But no trip in DB MCB. Can anybody tell me reason ? From where i can know about the MCCB settings?

5 Answers  

---

how to determine the inrush current of a transformer

0 Answers  

---

What is VFD, and how its work

5 Answers  

---

After fault clearing in Tr line, whether the Metering core of CT is comes to normal condition from saturation region & its works as a normal condition?

1 Answers  

---

what happen ehen synchronisation is done at below rated speed

0 Answers  

---