CERN selects Danisense DM1200 DCCT for technical facelift

Comments Miguel Cerqueira Bastos, Section Leader in the Electrical Power Converter group at CERN: "The DM1200 is a current output DCCT and, as such, it provides a current signal proportional to the measured current, which in this case is the output current of the POLARIS power converter. We convert the output current from the DCCT into a voltage signal, then digitise it, and use it in a digital current loop to precisely control the current in the magnets of the NA experimental lines." Based on Danisense’s ultra stable closed loop flux gate technology, the DM1200 current transducer benefits from very low offset and ultra low drift. The device was successfully evaluated by CERN for use with DC currents up to 2kA with a linearity error less than 1 ppm. With its specific design it provides high resolution for precise monitoring, reliable and consistent performance, and ruggedness for durability.

Danisense’s DM1200 DCCT has been chosen for the new POLARIS power converter series because of its excellent balance between performance and cost at primary currents as high as 2kA.