4 Steps On How To Load Test A Generator

An electric generator offers many conveniences to diverse industries, specifically when a natural calamity devastates the normal flow of electricity. It is also helpful when they are finishing a project in a remote location that is deprived of power that can put their machinery at work. That is especially true in construction sites because they form buildings that are yet to have proper transmission lines fixed on them. Thus, it can be damaging to the equipment – and the reputation – of the firm in case the development becomes delayed due to an overworked device. Read on to learn the four steps on how to load test a generator.

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Step #1: Prepare The Necessary Materials

Other than the wires which are needed, you have to make sure that a load bank will be available on the testing date. If not, a set of portable heaters, voltmeters, and ammeters will suffice.

Although it is a vital portion of the examination to keep the generator in its usual place in the facility, the typical appliances that gain electricity from it cannot be a part of the test. It prevents the possibility of destroying the expensive equipment and increases the chances of dispersing the voltage through the machines at the same time.

Step #2: Hire A Professional Tester

A representative of the manufacturer should technically be present so that any issue can be attended to at once. If your company does not have tech specialists, you will need to employ the services of an expert in generators to ascertain that correct testing procedure will ensue.

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Step #3: Check The Genset Beforehand

Guaranteeing that the inner part of the engine is clean, the oil and fuel are on the right levels, and all the bolts are intact lessens the probability of the examination failing because of human errors. It is also the right time to power up the electric generator on its own to see or hear any apparent problems that it may have. Once you validate that the generator is functioning well, you may switch it off to cool the motor down before the actual testing process begins.

Step #4: Conduct The Examination As Per NFPA 110’s Guidelines

An NFPA 110 simulation involves performing a load test differently. Meaning, when the load bank is already attached to the generator, you have to determine the latter’s capability to supply energy in terms of kW to a quarter of the appliances that it can ideally service. After 15 minutes, you add another quarter and do it until you get to 100% capacity.

In The End

In case the genset is successful at passing these loads, you will now proceed to examine its endurance. To be specific, the generator has to function for no less than four hours in full mode. Record the data that appears on the load bank in a 15-minute interval, as well as the heat level and amount of exhaust that it may produce due to the length of time that it is left running. The apparatus will be deemed safe to use once the power it gives off remains stable throughout the test period.


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