Working of single –phase induction motor, Physics

Assignment Help:

Working of Single –phase induction motor

Working : Construction of a single -phase motor is same to that of a three -phase induction motor except that the stator is given with a single- phase winding. Therefore, it has a stator with slots, and squirrel cage rotor with a small air-gap in among. When it is linked to single- phase ac supply, alternating current flows in its stator winding and the polarity of stator poles would alternately be N and S. The field so produced will be pulsating i.e. polarities will be alternating with the flux rising and falling in strength. The current induced in the rotor will tend to turn it in both directions alternately and therefore the rotor will be at standstill because of inertia. If rotor is given a push by hand or by another means in any direction, it will rotate in the similar direction developing operating torque. Therefore a single -phase induction is not self- starting and needs special starting means.

 


Related Discussions:- Working of single –phase induction motor

Calculate three straight-line segments, In a particular region there is a u...

In a particular region there is a uniform current density of 18 A/m 2 in the positive direction. What is the value of fB·ds when that line integral is calculated along the three s

Explain generation of electrical energy, Explain Generation of electrical e...

Explain Generation of electrical energy Generation of electrical energy : The conversion of energy available in dissimilar forms  in nature into electrical energy is called as

Plane and convex mirrors, (a) You have studied that plane and convex mirror...

(a) You have studied that plane and convex mirrors produce virtual images of objects. Can they generate real image under some circumstances? Explain. (b) A virtual image we a

Describe features of wave motion , a) It is a sort of disturbance which goe...

a) It is a sort of disturbance which goes by a medium. b) Material phase is necessary for the propagation of mechanical waves. c) When a wave motion goes by a phase, molecule

Calculating distance in m light travels in 1yr, Example 1:How far in meters...

Example 1:How far in meters does light travel in one year? Solution: 299,792,458m x 31,557,600s =9.461 x 10 to the power of15 Question, while i understand the above, why can we

Calculate the refractive index of liquid, Focal length of convex lens is 0....

Focal length of convex lens is 0.1 m. A liquid lens is formed between a plane surface and one face of this lens of radius of curvature 0.12m. The converging combination formed is f

National ambient air quality standards, The town of Smog, Idaho is located ...

The town of Smog, Idaho is located in a river valley and has a footprint of 6 km x 2 km.  It has an average daily emission rate of 1000 kg/day of PM 2.5  into the atmosphere from

Distance and displacement, A player hits a ball at some angle the ball goes...

A player hits a ball at some angle the ball goes high up in the space the player runs and catches the ball before it hits the ground which of the two has greater displacement?

Name the different methods of charging a battery, Different methods of char...

Different methods of charging a battery:  There are two general methods are employed for charging are:- A) constant current system and B) constant voltage system..

What is extrinsic semiconductor, (i) It is also known as impure semiconduct...

(i) It is also known as impure semiconductor. (ii) The phenomena of adding impurity is known as Doping.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd