“…Electromagnetic interference (EMI) and electromagnetic compatibility (EMC) problems in power systems have been paid more and more attention [9]. Transient electromagnetic field generated during switching operation is one of the important sources of electromagnetic interference in substations [10]. The characteristics of the transient electric field generated by the switching operation of the substation can be understood by field measurement, including the characteristics of the transient field in time domain and frequency domain [11,12].…”