Load Bank Types & Fundamentals | Ohmite Mfg Co

Resistive Load Banks

Resistive load banks are the most common type and are widely used for testing generators, UPS systems, and power distribution networks. They consist of resistive elements, typically made of high-resistance alloy wires or ceramic resistors, which convert electrical energy into heat. Resistive load banks offer simple operation, high reliability, and precise control over the load, making them suitable for a wide range of applications.

Reactive Load Banks

Reactive load banks are used to test power factor correction systems, capacitors, and other reactive power devices.

Unlike resistive load banks, reactive load banks incorporate inductive and capacitive elements to simulate reactive loads, which are essential for assessing the performance and stability of power factor correction equipment.

Inductive Load Banks

Inductive load banks primarily simulate inductive loads, such as motors, transformers, and induction heating systems. They consist of inductive coils or windings that generate magnetic fields, mimicking the behavior of inductive loads in real-world applications. Inductive load banks are commonly used in industries where inductive loads are prevalent, such as manufacturing, mining, and HVAC (Heating, Ventilation, and Air Conditioning) systems.

Capacitive Load Banks

Capacitive load banks simulate capacitive loads and are used for testing capacitors, power factor correction equipment, and power supply units. They consist of capacitors or capacitor banks that store and release electrical energy, replicating the behavior of capacitive loads in electrical circuits. Capacitive load banks are essential for assessing the performance and stability of power factor correction systems and ensuring efficient power distribution.

Combined Load Banks 

Combined load banks integrate resistive, inductive, and capacitive elements to simulate a variety of loads encountered in complex electrical systems. They offer versatility and flexibility, allowing engineers to replicate diverse real-world scenarios and assess the performance of power systems under different operating conditions. Combined load banks are commonly used in comprehensive testing and commissioning of power generation plants, substations, and industrial facilities.

Portable Load Banks

Portable load banks are compact and lightweight units designed for on-site testing and troubleshooting of power systems. They offer convenience and mobility, making them ideal for field testing, maintenance, and emergency response applications. Portable load banks are invaluable tools for engineers and technicians working in remote or inaccessible locations where access to grid power may be limited.

Fixed Load Banks

Fixed load banks are permanently installed in power generation facilities, data centers, and industrial plants for routine testing and maintenance. They are custom-designed to meet the specific requirements of the facility and are integrated into the power distribution infrastructure. Fixed load banks provide continuous monitoring and testing capabilities, ensuring the reliability and performance of critical power systems.

In conclusion, the diverse range of load banks available offers engineers and technicians the flexibility to simulate various electrical loads and test the performance of power systems under different conditions. Whether it's resistive, reactive, inductive, capacitive, combined, portable, or fixed load banks, each type serves a specific purpose and plays a crucial role in ensuring the reliability, efficiency, and safety of electrical systems across industries.