This study introduces a novel web based learning tool for electrical machines education. The tool developed consists of the real time experiments remotely accessible via internet in addition to thereotical presentations with animations and simulations on mathematical models of the electrical machines. The system is based on server/client architecture. All operation steps are executed by the server. So, clients do not need any additional software rather than internet connection and an internet browser. A DC motor course is given as an example to illustrate the novel tool developed. The remotely located users can learn the therotical information about the DC motor by means of using interactive web pages. All thereotical presentations supported with favorable animations to facilitate the understanding. Also, users can use the simulation models over the web to observe the motor's dynamic behaviours under the different parameters. Moreover, they can remotely access a DC motor experimental set via internet to perform real time experiments such as speed control and generator operation of DC motor. During the conducting real time experiments over the web, the experimental set can be monitored with a webcam. Experimental results show that the integrated web based learning system developed is user-friendly and can be used for electrical machines education successfully.

The goal of this paper is to protect induction motors against possible failures by increasing the reliability, the efficiency, and the performance. The proposed approach is a sensor-based technique. For this purpose, currents, voltages, speed and temperature values of the induction motor were measured with sensors. When any fault condition is detected during operation of the motor, PLC controlled on-line operation system activates immediately. The performance of the protection system proposed is discussed by means of application results. The motor protection achieved in the study can be faster than the classical techniques and applied to larger motors easily after making small modifications on both software and hardware.