Current transformer

A technology for current transformers and iron cores, applied in the directions of inductors, transformer/inductor cores, transformer/inductor coils/windings/connections, etc. The output waveform is easy to saturate and distort, and achieve the effect of eliminating the secondary and trailing after fault removal, the number of secondary turns, and the large cross-section

CN102760568AInactive Publication Date: 2012-10-31NANJING JIANGBEI AUTOMATION TECH
6 Cites 4 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2012-10-31
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a current transformer, which comprises an iron core, a primary winding and a second winding, wherein the cross section of the iron core is 1-4cm<2>; the iron core is provided with at least one air gap along a direction of cutting magnetic lines; the number of turns of the primary winding is 1-25 turns, and the number of turns of the secondary winding is 2000-10000 turns; and the diameter of a coil of the secondary winding is 0.06-0.21mm. When meeting a maximum direct-current component under 20-60 times of rated current, the current transformer can output saturated and distorted waveforms and can really reflect the attenuation state of the maximum direct-current component and eliminate the trailing phenomenon of secondary stage of waveforms according to optimized selection of parameters after faults are removed.
Need to check novelty before this filing date? Find Prior Art