توسعه آزمایش حفاظت رله در آموزش الکترونیکی سیستم های قدرت در آموزش الکترونیکی

The learning of power system relay protection requires some practical drills. Laboratories have therefore been built in campus and the experiment teaching has been carried out. However, in distance education, the actual presence of the students in the laboratories is practically impossible. To overcome this problem, power system relay protection experiment in E-learning has been developed. An experiment system of relay protection was developed and the Elearning links were designed. It enables autonomous, interactive and collaborative learning of relay protection experiment through the Internet. In fact, students can learn at any time any place. This system will therefore enhance students’ experimental skills and improve experimental teaching quality.

With the development of information and network technology, E-learning, as a learning mode based on resources, changes people’s mode of thinking and learning greatly, and makes education developed towards networked, virtual and individualized. Information construction of teaching resources using modern information technology has become an important teaching means in modern education [1].With the global sharing of digital learning resources, the emergence of virtual classrooms and virtual schools,as well as the development of modern distance education, learning has broken the restriction of time and space, and lifelong learning has become possible. Power system relay protection is a major subject in a power system course. Within the power industry,relay protection is an important measure to guarantee safe, stable and reliable operation of power system. In order to cultivate students’ ability of analyzing and solving practical problems, power-system relay protection laboratories have been built in campus and the experiment teaching has been carried out.However, in distance education, the cost and difficulties of providing field experience to the students have limited the teaching of power system relay protection. Thus, making full use of advantages of multimedia and network technology, developing power system relay protection experiment in E-learning has become an imperative.

A new experiment system of power system relay protection in E-learning has been presented. The experiment system consists of experiment courses and E-learning links. The experiment courseware is developed in the form of three-split-screen. Students are able to observe, operate and complete various scheduled experiment projects as in the real environment. The E-learning links are designed with the ideas of course guidance, autonomous learning and learning support services. Through the course guidance, forum, email and video questions answering, students are able to learn independently and interact with the teacher at any time. This experiment system in E-learning enables autonomous, interactive and collaborative learning of relay protection experiment. Through two years’ research of the study group, it is considered that power system relay protection experiment E-learning is of great significance to enhance students’experimental skills and practice ability, improve experimental teaching quality, enrich E-learning resources in electrical engineering and realize resources sharing.