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本文从控制系统电流互感器的特点出发,根据理论分析并结合工程实际得出确定电流互感器关键尺寸——铁芯宽度a。的公式。按此进行设计,可以使设计步骤大为简化,设计工作量与过去相比大为减少,并且满足了控制系统的要求,保证了一定的线性度和精确度。我们采用校验磁通密度的方法来保证线性度,以及采用对匝数比的修正来保证精确度。在附录中对主要公式都进行了分析、推演与证明。
In this paper, starting from the characteristics of the current transformer control system, based on theoretical analysis and engineering practice to determine the current transformer to determine the key dimensions - the core width a. The formula. Click here to design, you can make the design step is greatly simplified, the design workload greatly reduced compared with the past, and to meet the requirements of the control system to ensure a certain degree of linearity and accuracy. We use the method of checking the flux density to ensure the linearity and using the correction of the turns ratio to ensure the accuracy. In the appendix, the main formulas are analyzed, deduced and proved.