The type of load bank you need will vary depending on the applications involved. Typically load banks fall into three categories:
Resistive: The most common type, a resistive load bank provides a simulated electrical load for generators and back up power systems. They work by mimicking the operational load that a power source would handle during actual use. When used as a controlled system test, the load simulates real-life resistive loads, such as incandescent lighting and heating loads, as well as the resistive or unity power factor component of magnetic (motors, transformers) loads.
Northbridge Industrial Services (LON:NBI) has two core activities, Crestchic Loadbanks and Tasman Oil Tools. Crestchic is a specialist electrical equipment business which manufactures, sells and rents loadbanks and transformers from its base in Burton on Trent and has depots in France, Germany, Belgium, UAE.