Power resistors are used to dissipate or process generated energy. This can be deliberately generated energy or energy that is generated anyway in a process or action.
Technical adviceHeating Group International supplies various forms of resistance heating that can be applied as braking resistors. A braking resistor is used in applications where the operation of the system generates energy that must be lost at some point. The resistor is then used to convert the excess energy into heat. This heat can then be “destroyed” or reused in water, for example.
Braking resistors can be made in different designs:
– Water-cooled resistors
– Air-cooled resistors
– Convection
Braking resistors are used in various industries and applications:
Marine
Many ships have electrically driven systems on board that generate energy when stopping. For example, on board machinery, cranes and when lowering the anchor.
Wind energy
When a wind turbine stops, it releases an amount of energy that can no longer be absorbed. A braking resistor is used to destroy this energy.
Automotive
When braking, for example, buses or trains release energy that can be converted into heat via a braking resistor.
Automation
Many automated systems such as filling machines, welding robots, transportation systems and attractions in recreational parks generate their own energy when the system comes to a standstill. Without the use of a braking resistor, this excess energy can lead to dangerously high voltage in the system.
Power resistors can also be used as load banks. A load bank is used to provide an electrical load for testing power sources. For example, generators and batteries.
Heating Group International can supply loadbanks up to 36000 VAC and from 50kW – 1MW.
Heating Group International B.V. © 2025
Do you have questions or do you need advice? On our customer service page you can find frequently asked questions and on the contactpage we have provided all information required to contact us.
