Factory Acceptance Checks for a 400 kW Natural Gas Generator Set
A buyer's guide to defining pass or fail checks for a factory acceptance test on a 400 kW, 500 kVA, 50 Hz natural gas generator set, with practical questions for the test plan and acceptance criteria.
Before signing off a factory acceptance test for a 400 kW natural gas generator set, decide how each check will be judged: a measured value against a stated limit, a witnessed functional result, or a document review. Without that decision, a demonstration can end with observations but no clear pass or fail.
For a 500 kVA, 50 Hz set, ask the supplier to propose acceptance criteria for load steps at defined fractions of prime output, voltage and frequency recovery after each step, and sustained operation at rated load. Clarify the gas supply conditions the factory test assumes, since results depend on the fuel provided. Will the test include starting from cold, protective shutdowns, and alarm annunciation? For each, agree the expected response and the evidence recorded.
Treat catalog figures such as 400 kW prime output, 500 kVA prime apparent power, and 50 Hz frequency as reference values, not guarantees for the supplied model. Require the test plan to state the actual configuration tested and the instrumentation used.
Before requesting a quote, confirm with the supplier which tests are standard, which are optional, who witnesses them, what test report data is provided, and how deviations are resolved.