Calama brand alternators — precision-engineered brushless AC generators for use in diesel generator sets (DG sets), power backup systems, and standby power applications. Available in single phase and three phase configurations from 3 KVA to 63 KVA. What is an alternator and why does quality matter? An alternator is the power-generating heart of every diesel generator set. It converts mechanical energy from the diesel engine into alternating current (AC) electrical output. The quality of the alternator determines the voltage stability, waveform quality, efficiency, and service life of your entire DG set. A poor-quality alternator produces unstable voltage that damages sensitive equipment — motors, computers, medical devices, and control panels. A Calama alternator, engineered with Automatic Voltage Regulation (AVR) and Class H insulation, delivers clean, stable power output within tight voltage tolerances — protecting every piece of equipment connected to it.