A self-checking electronic current transformer and its manufacturing method
A current transformer, self-calibration technology, applied in the direction of inductor, voltage/current isolation, transformer/inductor coil/winding/connection, etc. Interference and other problems, to achieve the effect of improving long-term stability and accuracy, fast and small current self-calibration
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[0019] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention, and to fully convey the scope of the present invention to those skilled in the art.
[0020] According to one aspect of the present invention, an electronic current transformer with a new structure is provided to solve the problem that the accuracy of the existing electronic current transformer is unstable and the on-site large current calibration is difficult to realize. Such as figure 1 As shown, an electronic current transformer includes Rogowski coils (such as Rogowski air-core coils) or iron core coils (such as LPCT), whic...
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