| A Generator is a device which converts mechanical energy into electrical energy. | |
| WORKING PRINCIPLE | |
| A.C Generator works on the principle of electromagnetic induction (motional emf). In generator an induced emf is produced by rotating a coil in a magnetic field. The flux linking the coil changes continuously hence a continuous fluctuating emf is obtained. | |
| CONSTRUCTION | |
| A.C Generator consists of the following parts. | |
| Powerful field magnet with concave poles. Armature: It is a rectangular coil of large number of turns of wire wound on laminated soft-iron core of high permeability and low hysteresis loss. Slip rings: The ends of the coil are joined to two separate copper rings fixed on the axle (S1 & S2). Carbon brushes: Two carbon brushes remain pressed against each of the rings which form the terminals of the external circuit. |
Wednesday, July 7, 2010
AC Generator
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment