Digital current transformer adopting low-permeability magnetic powder core

The invention relates to the technical field of current transformers, in particular to a digital current transformer adopting a low-permeability magnetic powder core. The device comprises a current coil, the current coil adopts a low-permeability magnetic powder core as a magnetic core, the current...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHOU SHENGQING, CHEN HAO, GAO SHAOJUN, LI WEI, JI XINZHI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to the technical field of current transformers, in particular to a digital current transformer adopting a low-permeability magnetic powder core. The device comprises a current coil, the current coil adopts a low-permeability magnetic powder core as a magnetic core, the current coil is connected with a low-range channel circuit and an elevation channel circuit, the low-range channel circuit and the elevation channel circuit are connected with a secondary winding of the current coil in parallel, the low-range channel circuit is used for collecting a small-current range, and the elevation channel circuit is used for collecting a small-current range. The elevation channel circuit is used for collecting a large current range. The low-permeability magnetic powder core adopted by the invention has the advantages of good high-frequency characteristic, good direct-current component saturation resistance, soft saturation characteristic and the like, the production cost is relatively low, the curre