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Generator load bank testing and proof load testing is a crucial component of preventive maintenance practice to ensure your generator performs in the event of a power failure. This test checks the generator engine’s ability to perform and provide the required power needed in an emergency.
Standby generators that are only run on a light load can give a false impression of capability and may be unable to run a heavy load due to a build-up of engine fuel deposits, resulting in a reduction in generator output in an emergency situation.
Over time, lightly loaded generator sets develop wet-stacking and carbon build-up in the combustion chambers and exhaust system, which can lead to increased oil and fuel consumption and poor engine performance. The use of a load bank helps prevents this and determines the generator’s capability to produce maximum output in terms of amperage and horsepower.
At minimum, we recommend that generator load bank testing should be performed on an annual basis to improve the life of the engine and alternator. The test gives you peace of mind that your generator will remain reliable throughout power interruptions and keeps your business running. Make sure it’s part of your FDL Planned Maintenance Agreement.