Influence of Current Transformer Saturation on Operation of Current Protection

An analysis of the influence of instrument current transformer errors on operation of current protection of power supply diagram elements has click here been carried out in the paper.The paper shows the influence of an aperiodic component of transient Jeans current and secondary load on current transformer errors.Peculiar operational features of measuring elements of electromechanical and microprocessor current protection with their joint operation with electromagnetic current transformers have been analyzed in the paper.