Voltage Regulator — Design Description (Renault 19)

The faster the generator spins, the higher the voltage rises and with it the electric current produced, like a bicycle dynamo. The current consumers in a car cannot withstand such voltage surges up and down.

Therefore, the voltage regulator installed on the generator limits the voltage and prevents overloading of the battery.

A certain amount of electric current passes through the sliding graphite brushes of the generator; in addition, the graphite brushes move on smooth contact rings. This prevents severe wear of the brushes. On the Paris-Rhone generator, the sliding graphite brushes are located on the inside of the voltage regulator. On the Ducellier and Valeo generator, they are located on a separate brush holder.

If the voltage regulator is faulty or the carbon brushes are worn out, at least on most "F" type engines, you will have easy access to the alternator. However, before removing the suspected faulty voltage regulator, check the contact connection to make sure it is properly connected and not corroded.



(The text is available on this website: www.RenaultBook.ru)