Demonstrating a Diesel Generator Set With the Buyer's Own Load
For a 90 kW prime / 100 kW standby, 60 Hz, 1,800 rpm diesel generator set, the most useful demonstration runs the buyer's actual load profile, not a resistive test bank alone.
A buyer specifying a 90 kW prime, 100 kW standby diesel generator set should require the demonstration to use the buyer's own load profile rather than a generic resistive bank. Ask the supplier to run the set at 60 Hz and 1,800 rpm against a load mix that reflects the site: motors starting under load, nonlinear electronics, and sustained demand near the intended operating point. A resistive-only test can hide voltage and frequency response to step loads and poor power factor.
In the request for quotation, define the load steps, duration, and what counts as acceptable voltage and frequency recovery. Ask whether the demonstration uses the buyer's equipment or a simulated load, and who supplies and connects it. For an acceptance test, agree in advance on recording method, ambient conditions, and fuel type, since results depend on them.
Before requesting a quote, confirm with the supplier which load bank or buyer load will be used, how step-load response is measured and recorded, what fuel and ambient conditions apply, and whether the demonstration can be witnessed at the buyer's site or only at the factory.