liquid cooling

Resistor liquid cooling boosts 3.3kV medium voltage loads

Motor driven applications

In motor driven applications like cranes, lifts, hoists and conveyors, air cooled resistors are common, but in medium voltage, high power applications liquid cooling wins out. A medium voltage drive running off a 3.3kV supply to turn a 500kW motor will put a severe heating load on the application’s power transistors – hence the need for water cooling, as David Atkins, projects director at Cressall Resistors explains.