Car alternator is a 3 phase generator.

In the car alternator is a 3 phase generator and rectified instead of using dc generator.
Why ac alternator is better than dc generator in any car?

mahmoudp1
Profile Answers by mahmoudp1 Questions by mahmoudp1
May 1st, 2012
3
8813

Questions by mahmoudp1 answers by mahmoudp1

Electrical Engineering

Answer

Showing Answers 1 - 3 of 3 Answers

S.Ghosh

May 2nd, 2012

An alternator is more reliable than a dc generator as it doesn't have commutators and brushes. 3 phase alternator gives a much smoother output than a single phase one when rectified. Now-a-days alternators have totally replaced dynamos (dc generators) in automobiles.

suryatejreddy
Profile Answers by suryatejreddy Questions by suryatejreddy

Apr 12th, 2013

DC generator although produces a.c,it must be converted to d.c by rectifiers in order to store in the batteries and to it supply must be dc,so in cars instead dc generators alternators are used.

ripplenwinder
Profile Answers by ripplenwinder Questions by ripplenwinder

Dec 10th, 2013

No! 3 phase has no rectifier or voltage regulator a car alternator does. DC the voltage and current are suppose to be 180 degrees out of phase from one another or so most people think. Current can go either direction and no affect voltage or the voltages polarity (+/-). In fact since there is no constant load over time current has to change direction in order to keep a constant voltage.