Site Blog

Working Principle of an Alternator


An Alternator is associate electrical generator that converts mechanical energy to electrical power with in the from of alternating current. The output of an alternator pulley could be a rotated Alternating Current (AC). Once this AS passes through a magnetic field, an electrical current is generated and born-again to DC via the rectifier. The current is controlled through the voltage regulator in order to cope with the varying electrical vehicle loads.

The working principle of an alternator is very simple. A like the basic principle of DC Generators, that of an alternator depends on Fleming's Right hand Law of Electromagnetic Induction, which says that current is induced in the conductor of a magnetic field when there is a relative motion between the said conductor of a magnetic field when there is relative motion between the said conductor of a magnetic field. As per this rule, the direction of this current will be clockwise.

The rotor of an alternator is mechanically coupled to the shaft, which one being made to rotor at synchronous speed under some mechanical force, result in magnetic flux cutting of the stationary conductors housed on the stator. As a direct consequence of this flux cutting an induced emf, current starts to flow through the stationary stator conductors. Such current flows in one direction for the first half of the cycle and then in another direction for the second half. This change of direction takes place in each winding with a definite time lag of 120 due to the space displaced arrangement of 120 between the conductors.

Jumps Auto Industries manufactures alternators for 66921155, LRA100, 0120489221, 0120339531   

Back to Site Blog