Check generator loading and whether it sits in the healthy operating band.
Diesel generators want to run between about 50 and 80 per cent of rating. Persistent light loading causes incomplete combustion, carbon deposits and eventually damage. Oversized standby sets that exercise on light load are a common source of failures, which load banks are used to avoid.
Generator Load
Loading % = demand kVA ÷ generator kVA × 100
Loading % = demand kVA ÷ generator kVA × 100 Diesel generators want to run between about 50 and 80 per cent of rating. Persistent light loading causes incomplete combustion, carbon deposits and eventually damage.
Oversized standby sets that exercise on light load are a common source of failures, which load banks are used to avoid.
This calculator takes 4 inputs: Generator rating, Connected load, Load power factor, Diversity factor. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.