Generators

The main purpose of generator sets is to provide electrical energy, continuous or temporary (in cases of emergency), safely and effectively. The generator sets serve not only to supply energy to unsupported regions, but also to be activated in cases of emergency, avoiding various losses due to power outage.

Small generators generally use common rotating elements, in which case the vibration behavior and fault diagnosis is similar to that of a large electric motor. The vibration data measurement requirements for diesel powered generators should normally be in accordance with ISO 10816 part 3.

Measurements must be made on each bearing housing and on the crankshaft bushings. Avoid mounting sensors on the protective covers or at the equipment base. The frequency range must be enough to cover from 2 Hz to at least 2x the frequency of the fanspeed, with a minimum range  up to 2 kHz, according to ISO 10816. Therefore, for the monitoring of diesel generators, it is recommended to use the DynaLogger HF+ model, due to its high spectral range that can reach up to 13 kHz for uniaxial and triaxial measurements.