The analysis of the magnetic field is very important for the design of a current comparator( CT).However,for its complex air-gap structure,it is difficult to obtain a desired simulation accuracy by using finite element analysis( FEA) with acceptable calculations. In this paper,a simplified 2 D model for CT is proposed,and an analytic solution, taking into account the interference of both the eccentric primary current and the external magnetic field,is derived for multilayered magnetic shield. Using the orth...
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