What is load test for diesel generator sets?

Jul 19, 2024
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What is the Purpose of Generator Load Testing?

Generators need to be fully functioning and ready to perform optimally at any given time. A generator load test will shed light on any faults or problems with the generator or its cooling system. It also prevents wet-stacking and maintains general performance.

Generators also need to be able to perform that their highest load possible whenever needed and are commonly used as a critical power supply for the following:

Healthcare & hospital facilities

Data centres

Large-scale mining operations

Construction sites

Commercial facilities

Whether it’s powering a worksite or providing critical power for data centres, hospitals or commercial buildings, a faulty generator can cause severe consequences. Load testing prevents identifying faults or problems at the worst possible time.

Scheduling regular load testing is critical as part of your ongoing generator maintenance program. Without it, you won’t be able to guarantee the optimal performance of the generator when you require emergency or back-up power. 

Multiple Load Level Testing
Over 12 hours, we tested each generator at multiple load levels. After a 1-hour load test at a 100% standby rating of 0.8PF, each generator set underwent an additional 11-hour load test with different load percentages. The loads were maintained at intervals of 25%, 50%, 75%, and 100%, with each interval lasting for 15 minutes, except for 100%, which was maintained for 10 hours. An extra 1-hour load test was conducted at 110%.

Why is Generator Load Testing Critical for Your Operation? 

Above all else, scheduling regular generator load testing in your maintenance plan gives you peace of mind that your generator will perform optimally when you need it most. Here’s why generator load testing is critical to your operation:

You remain compliant for generator testing - especially in emergency or critical applications such as medical facilities

Prevents wet-stacking, extending the lifetime of the generator

Guarantees generators are ready to use for maximum power loads

Verifies the efficiency of the generator

Helps flag any minor faults, problems or issues so it can be addressed accordingly 

Need a Power Solution? Get the Right Advice.

With years of experience servicing the mining construction industries, Blue Diamond Machinery has the equipment you need and can rely on. We not only offer expert advice and industry-leading warranties, we provide an all-encompassing solution. We will customise and install your power solution to your specific power demand requirements, wherever you are. Get in touch with our team today.

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