kumar ideology

A book of power system by c. l. wadhwa . . . . . . . . . . . . . ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓ . . . . . . . . . . click here to download the book--- https://drive.google.com/open?id=0B9buDBvxkr5fTmRhTTFiVkFOc2M If you want more books, slide, ppt's and notes,Request in the comment section. Visit the site for more knowledge and share this site link to the needy one. Thank You...

                                        MOVING IRON  • Moving-iron instruments are generally used to measure alternating voltages and currents.  • In moving-iron instruments the movable system consists of one or more pieces of soft iron, which are so pivoted as to be acted upon by the magnetic field produced by the current in coil. Components  • Moving element: a small piece of soft iron in the form of a vane or rod.  • Coil: to produce the magnetic field due to current flowing through it and also to magnetize the iron pieces.  • In repulsion type, a fixed vane or rod is also used and magnetized with the same polarity.  • Control torque is provided by spring or weight (gravity).  • Damping torque: the damping device consisting of an air chamber and a moving vane attached to the instrument spindle.  • Deflecting...

A BOOK OF QUANTITATIVE APTITUDE BY R.S.AGGRAWAL CONTAINING ALL  SOLVED AND UNSOLVED EXAMPLE CLICK HERE  TO DOWNLOAD THE BOOK . . . . . . ↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓ . . . . . https://drive.google.com/open?id=0B9buDBvxkr5fZWVhRDBOTzFpbzA . . . . . . . If you want more book online you can request in the comment section , Visit here for more books and share this site link with the needy one.  Thank You

Induction Motor | Working Principle | Types of Induction Motor One of the most common electrical motor used in most applications which is known as  induction motor . This motor is also called as asynchronous motor because it runs at a speed less than its synchronous speed. Here we need to define what is synchronous speed. Synchronous speed is the speed of rotation of the magnetic field in a rotary machine and it depends upon the frequency and number poles of the machine. An  induction motor  always runs at a speed less than synchronous speed because the rotating magnetic field which is produced in the stator will generate flux in the rotor which will make the rotor to rotate, but due to the lagging of flux current in the rotor with flux current in the stator, the rotor will never reach to its rotating magnetic field speed i.e. the synchronous speed. There are basically two  types of induction motor ...