Intelligent High Current Sensor for Various Frequency

The paper proposes a design procedure of a current sensor. The winding design is analyzed regarding its impact on the operational characteristics and is evaluated for a preferred application. The paper also discusses the measurement results and given frequency characteristic and quality factors of the laboratory prototypes. The sensor is designed for a current up to 200 A and frequency up to 120 kHz. The sensor is equipped with an electronic unit in a common housing. The electronic transducer evaluated the measured data and produces the digital output signals which is easy to transfer even to a long distance.