In recent years, the use of the power electronic devices and increasing their switching speed by introducing new technologies such as silicon carbide switches, as well as the use of vacuum switches with high on/off rates, have increased due to technical and economic reasons in the power system. This increase in the speed of the power switches causes two phenomena: first, it creates traveling waves along the cable between the power supply to the motor, which causes the voltage to rise at the motor's terminals. Secondly, high dv/dt or high voltage variations cause capacitive currents in the motors. On the other hand, these transients and rapid changes occur in large numbers in seconds (tens of kHz), which in the long-term lead to the aging of motor insulations and ultimately their failure; according to studies, one of the main causes of electrical motor failure is insulation failure. On the other hand, in industrial systems, long cables are used to connect power supplies to electrical motors. These cables today have very low losses, which causes transient voltage to be transmitted to the motor terminals with minimum damping. Research has shown that the use of these cables can lead to an increase in transient voltage at the motor's terminals up to twice the rated value. Due to the problems mentioned for electrical motors in the presence of voltage transients, this study first presents a detailed and accurate model for studying the transient effects on the electrical motor. This model has been expanded using the theory of multi-conductor transmission lines. Then, in order to increase the simulation speed, a summarized model is also obtained using the Krone reduction method. In the following, using a 360 kilowatt electrical motor and proposed model, the effects of voltage transient on the electrical motor has been discussed. For simulation, the electrical motor was first studied lonely and the effects of dv/dt have been studied on its own. After that, the cable connecting voltage source to the motor is also added to the system to verify its effects. In these studies, the effect of transient voltage rise time as well as the length of the cable connecting the transient voltage source to the motor, on the overvoltage and the maximum voltage difference between the winding turns has been investigated. After identifying the destructive effects of transient voltages on motors, the methods for compensating and improving them are discussed. In the same vein, after reviewing the existing methods, the RL filter installed on the source side and the RLC filters installed on the motor side, have been investigated. The effect of each of these filters on the overvoltage created at the motor terminals and the maximum voltage difference created between the winding turns has been investigated using simulations.Keywords:Voltage transients due to switching, Multi-conductor transmission lines, Motor insulation failure,Filter