Overview

REGULATORS AND EXCITATION SYSTEMS ARE AT THE HEART OF INDUSTRIAL ALTERNATORS PERFORMANCE AND RELIABILITY.
At  Leroy-Somer,  we  design,  test  and  qualify  our  electronic  products  to  meet  the  challenges  of  power  generation systems.
Using our experience and field expertise, we provide regulation features that help protect installations from outage and failures, and our excitation systems are optimized to provide the best performance levels for any situation.

Leroy-Somer offers different excitation systems to match application requirements.
An excitation system uses the alternator output to build an excitation current that is then used to power the rotating magnetic field of the rotor.
This principle allows for the control of the output power.
To build excitation current, a regulator needs both a supply voltage to provide power, and a measured reference voltage at output terminals to pilot the excitation.