Diesel engine power generators are one of the most crucial components of an industrial emergency backup plan. The failure of power generators in emergency situations can lead to disastrous conditions. It is important for companies to monitor and maintain the performance of their power systems. This is where load bank testing comes into play and helps facility managers maintain their power equipment. Load bank testing uncovers potential problems in power generators and enables managers to take preventive measures.
Load bank testing is probably the most effective technique to ensure efficient operations of backup generators. No matter the nature or type of a load bank system, it can not only test the equipment but also improve the overall health of backup units. Load bank testing is a process to:
Verify Cooling System Operation
A load test makes the generator inject additional heat into the cooling air stream. This process will indicate malfunctions in the cooling system. The additional heat created during the process also puts stress on components of a cooling system: thermostat, oil cooler, radiator, etc. We can also obtain valuable data from a testing process that can help us with temperature differential. The temperature data also helps verify backup unit compliance. The process verifies the operations of cooling system alarms such as engine coolant overheat and high cooling water temperature alarm.
Verify Fuel System Operation
Latest diesel engine models are highly turbocharged, which makes them prone to poor combustion at low loads and over fueling. Sometimes power systems do not operate at a load high enough to generate flow velocities and high exhaust temperatures. This situation can lead to issues like wet stacking or accumulation of debris in the exhaust system. These problems can seriously damage the overall performance of a backup system; operation in an unloaded condition or continuous use at less than what is the recommended level of load can diminish engine output capacity.
Verify control operation
Power supplies and controls of a generator are sensitive to transients, and, when load changes, can shut down unexpectedly. An inductive or resistive load test is the best way to ensure smooth generator operations. A reliable testing procedure can help uncover many electrical and operational issues such as voltage and frequency adjustments, failed connections, circuit breaker trip settings, and voltage regulator performance. It also provides a best-case simulated real-world condition where efficiency, harmonics, and voltage drop can be studied effectively.
These are some of the benefits of load bank testing. Make sure you are taking good care of your power equipment and generator sets. You can hire a private company to deliver rental load bank testing and preventive maintenance services at your doorstep.