Current transformer

• Main Authors: Xiang Qiong, Zhang Shuhan, Lei Min, Zhou Feng, Yue Changxi, Du Xin'gang, Ge Dehui, Zhu Kai, Wang Huan, Wang Xue, Du Shuwei, Peng Chuning
• Format: Patent
• Language: Chinese; English
• Published: 03.08.2016
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The invention provides a current transformer which comprises iron cores and windings. The iron cores comprise the first iron core and the second iron cores, wherein an initial magnetic conductivity value of the first iron core is higher than that of the second iron core, a saturated magnetic induction value of the second iron core is higher than that of the first iron core, and the second iron core is provided with an air gap which penetrates through the second iron core in the radial direction; the windings comprise the first primary winding, the second primary winding, the first secondary winding and the second secondary winding, wherein the first primary winding and the first secondary winding are both wound on the first iron core, the second primary winding and the second secondary winding are both wound on the second iron core, the first primary winding and the second primary winding are connected in series, and the first secondary winding and the second secondary winding are connected in series. Accordi