Whenever high currents must be measured very accurately, current transducers are employed. To measure currents up to 2000 A in a frequency range from DC to 100 kHz with high accuracy, the zero flow transducer DS2000 Danisense can be used. The zero-flow principle is based on the fact that the magnetic flux generated by the primary current is compensated by a secondary flow, which is precisely proportional to the primary current. The DS2000 converts the currents in a split ratio of 1:1.500. The measuring range dependent errors at frequencies up to 500 Hz maximum is 0.01%. The current transducer comes in a rugged aluminum housing and can be used in a temperature range from -40° C to +85° C. In order to operate the high-precision transducer optimally, DaniSense offers the DSSIU-4, an interface unit to which up to four CTs can be connected. The transducer is supplied with power by shielded measurement cables (also available as accessories), through which also the measurement signal is transmitted to the interface unit.
Source: Elektronik Praxis | 11.04.14 | Redakteur: Gerd Kucera