The high-frequency behavior of the stator winding is synthesized herein using a multiconductor transmission line model to study potential location excessive voltage stress, being main cause insulation failure within winding. comprehensive modeling approach proclaims that distribution result antiresonance phenomenon, which can be characterized by two oscillatory responses. One response may lead ...

The short rise time observed in the PWM voltages generated by ultrafast wide bandgap devices increases amplitude of voltage harmonics at higher frequencies. These can excite resonances medium-frequency transformers (MFTs), resulting overvoltages inside windings during continuous operation. Without further measures, these lead to unexpectedly high electric fields insulation material, which resul...

The lightning performance of an overhead Multiconductor Transmission Line (MTL) system is typically represented by means of curves reporting how many lightning faults per year the system may experience as a function of its insulation level [1]. In other words, it expresses the probability that the lines are subject to an overvoltage greater than their critical flashover voltage (CFO). Such curv...

This paper presents a novel fault location method for series compensated transmission lines. It is established based on synchronized voltages sampling and Thevenin impedance from both ends of series compensated transmission line. The method is based on the use of phasor measurement units (PMU) technology which is aimed to be independent of current measurements, fault type, fault resistance, fau...

A computer program has been prepared that calculates the position of equipotential lines in cylindrical geometry for a multidielectric and multiconductor environment using a modified extrapolated Liebmann method. The output consists of printed voltages on evenly spaced grid coordinates, and an automatic drafting machine drawing of the dielectric and conductor boundaries and the equipotentials. ...

Most power line communication (PLC) models are designed to date simulate power lines as two-wire lines. However, in alternating current (AC) electrical distribution, the two-wire option is seldom applied, and medium-voltage lines are most often based on the three-phase configuration. In this context, the influence of the ground, which constitutes another conductor with specific parameters, cann...

In this work, a dynamic analysis of the V line is presented. Previous work analyzed the performance of this structure for low frequency applications using quasistatic approximations. Here, we extend the analysis of the V line into the higher frequency range where dispersion becomes significant and where it cannot be predicted by quasistatic methods. We show that the V line provides features and...

This paper presents circuit models to analyze the conducted susceptibility of multiconductor shielded cables in frequency domains using Branin’s method, which is referred to as the method of characteristics. These models, which can be used directly in the time and frequency domains, take into account the presence of both the transfer impedance and admittance. The conducted susceptibility is stu...