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What Is a Load Bank?

2022-05-07 03:42   Téléphones   Diffa   9 views

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Localité: Diffa
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A load bank is a self-contained device that has the load elements, controls and cooling systems it needs to operate built-in. Power is delivered to a load bank, which then consumes the electrical power by applying it to a power source and either converting or dissipating the source's power output. Load banks use the energy produced to protect, support or test a power source while a "real" load or actual building load uses energy output productively.Load banks come in many different forms based on the load they apply to the power sources they test. Resistive and reactive load banks are two primary forms. Each of these has its benefits for specific situations. Understand the differences between resistive and reactive load banks to find the best options for running tests on your power sources.Resistor load banks convert all of the applied electrical energy into heat. Larger kW load banks typically have an integrated blower for cooling. Some load bank designs, such as Duct Mounted, do not have their own cooling system but rather rely on cooling airflow from other sources such as an engine radiator.An inductive load bank is normally used in conjunction with a resistive unit to provide a lagging power factor load test. This provides the capability to test the generator set fully at 100% nameplate kVA rating. Inductive load banks add inductance to the load and therefore reduce the PF to less than unity (typically 0.8pf on diesel gen-set). Inductive load banks are rated in kilovolt-amperes reactive (kVAr).A load bank is a device that generates a prescribed amount of electricity draw to test the reliability of electrical switching, generator output, uninterruptable power supply (UPS) systems and cooling in a data center.