Specific Steps of Load Bank Testing for Generator Sets

1. Pre-test preparation: Inspect the generator set and load bank for intactness, connect the equipment as per specifications, and confirm the power supply and safety protection systems are normal.

2. No-load startup: Start the generator set and run it at no load to check the idle speed, voltage, frequency and other basic parameters for compliance with standards.

3. Step-by-step loading: Apply the load in stages (usually 25%/50%/75%/100% of the rated load) through the load bank, with a stable operation interval of 10-15 minutes at each stage, and record real-time parameters.

4. Rated load operation: Maintain the generator set at 100% rated load for a specified time (generally 1-2 hours) to verify its continuous operation performance under full load.

5. Step-by-step unloading: Reduce the load stage by stage in the reverse order of loading, avoid sudden unloading, and keep the unit running stably during the process.

6. Post-test idling and shutdown: Run the generator set at no load for 5-10 minutes to cool down the engine, then shut down the unit and load bank in accordance with the operating procedures.

7. Data sorting and inspection: Collate and analyze the test parameters and operation records, check the unit for abnormal conditions, and issue a formal load bank test report.