Load Banks

In mission-critical commissioning and power validation, understanding the difference between resistive and reactive load banks is essential. Resistive load banks simulate real electrical loads by converting energy into heat, applying a stable, unity power factor load that is ideal for testing generators, UPS systems, and basic power distribution performance. They are commonly used for routine generator commissioning, preventive maintenance, and verifying nameplate capacity. Reactive load banks, on the other hand, introduce inductive or capacitive loads to simulate the real-world conditions created by motors, transformers, and other equipment that operate at a lagging or leading power factor. These are typically used in mission-critical environments—such as data centers and healthcare facilities—where validating generator performance under true operating conditions, including power factor correction and voltage regulation, is critical. Together, resistive and reactive load banks provide a comprehensive approach to system testing and risk mitigation prior to energization.