Abstract
Novel rectangular yokeless current transducer with the range 400 A using 16 microfluxgate sensors around the busbar conductor is presented in this paper. Compared to yokeless transducers utilizing the differential pair of magnetic sensors, our solution has much better suppression of the external currents (lower crosstalk). Compared to industrial transducers with yoke, the new transducer has 15-times lower noise, 7-times better temperature stability, and same crosstalk. Sensor design and design of current monitoring system is presented together with the results of long-term field tests. Crosstalk error is examined in dependence on the number of the operating sensors and external current position.
Highlights
Small-size and cheap current sensors are required for smart grids, smart buildings and electric drives [1]
Sensors 2019, 19, 4964 yokeless DC/AC current transducer uses hole drilled in the middle of the busbar with inserted 2 microfluxgate sensors located on the opposite sides of the PCB [6]
In this paper we describe a novel rectangular yokeless current transducer using microfluxgate sensors
Summary
Small-size and cheap current sensors are required for smart grids, smart buildings and electric drives [1]. Sensors 2019, 19, 4964 yokeless DC/AC current transducer uses hole drilled in the middle of the busbar with inserted 2 microfluxgate sensors located on the opposite sides of the PCB [6]. This setup allows us to measure the current with the range ±500 A or even higher and with the linearity error lower than 0.1%. Circular sensor arrays are becoming popular due to their ability to suppress the influence of the conductor position and their good crossfield immunity [11] These arrays are based on the Ampere law and approximate the field integral by a sum of point sensor reading. The comparison in this paper is based on the laboratory tests as well as the long-time field use
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
