Answer / rajeshsan

The selection of 4 pole or 6 pole depends on application and speed.

To explain in detail

speed, N = 120f/p
where,
N
f = frequency
p=poles

From above it was clear speed depands on frequency and no of poles.

Answer / shyamkr

actually this depends on the operation of the motor.in most
of the cases 6 pole motor are more beneficial since we get
close wave form of flux as compared to the sine wave.
but when explanation is needed for the motor operation then
4 pole motor is very easy to understand.

What is meant by short-pitched winding?

0 Answers  

---

What will be in Mahagenco Trade Test Exam? I want to know the same.

0 Answers   MahaGenco,

---

The gauge indicates the number of amps, but what about voltage? How voltage rating (for wire or fuse) determined?

0 Answers  

---

explain 100 percent and 95 percent earth faults

1 Answers  

---

-What is leakage current . how much leakage current is allowed.

3 Answers  

---

10 Mtr Hight of Lighting Arrestar how much area coverd??

0 Answers   OmniActive,

---

what are the stresses in circuit breakers ?

0 Answers  

---

What happen if 1200KW/1500KVA alternator runs at no load and high R.P.M.for one minute?

6 Answers  

---

11kv has three live wires how much voltage is in its single wire(leaving the other two wires)

13 Answers   Power Grid,

---

1 HP = how many Kva

5 Answers  

---

tell me the various standerd of CT ratio

1 Answers   ICA,

---

why 3 phase motors are preferable over single phase motors ?

6 Answers  

---