English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

This paper describes the integration of a three-phase current sensor and a zero-phase current sensor via a coaxial bar structure. A coaxial bar structure was therefore used, as it improves the accuracy due to the exclusive use of the zero current transformer (ZCT) and the current sensor. The ZCT’s high-sensitivity magnetic sensor is an MI element, while the current sensor employs a Hall-effect IC. As a result, a sensitivity ratio (the ratio of leakage to residual output) of over 8:1 is obtained for the ZCT, demonstrating the structure’s ability to isolate leakage current. Meanwhile, the linearity error of the three-phase current remains at ±7.9%, well under the ±10% specification. Thus it can be seen that this structure was many advantages, while its sole disadvantage with respect to the conventional ZCT is increased manufacturing cost.

Integration of a Three-Phase and Zero-Phase Current Sensor Using a Coaxial Bar Structure