Water-Cooled Electronic Loads Serve High-Power Applications

Using a water-cooling technique for high power dissipation, the WCL488 electronic load is designed for high-current and high-power testing applications in the automotive, battery, power-supply and fuel cell-testing arenas. The full-featured load offers several modes of operation, including constant current, constant resistance, constant voltage, constant power and dynamic pulse. It's about 7 to 10 times smaller than comparable air-cooled loads, fits within standard 19" racks and may be controlled through an IEEE-488 bus or manually from the front panel.Other features include voltage and current limiting, thermal overload protection, user-selectable ac input and a low water-consumption rate. Up to ten individual 12-kW units can be paralleled to create a 120-kW system that handles up to 400V/10 kA. Each 12-kW unit is rated at either zero to 100V or zero to 400V and zero to 1 kA, not to exceed 12 kW.