高压输电演示教具设计与实现

该文设计一种高压输电演示教具,利用手摇发电机、开关电源、升压、降压变压器、特制输电导线及小灯泡组成高压输电线路模型,模拟电能产生、输送与使用这一过程。利用红外热成像仪监测输电线上的损耗情况,并向学生表明最终的损耗是以热量的形式散失。经实验测试,此教具可以应用于电能的输送课堂演示,能够证明采用高压输电方式可以有效地减少输电线路上的损耗,提高传输效率。

This paper designs a high-voltage transmission demonstration teaching aid,which uses a hand-cranked generator,switching power supply,step-up and step-down transformer,special transmission wire and small light bulb to form a high-voltage transmission line model,simulating the process of power generation,transmission and use.The infrared thermal imager is used to monitor the loss on the transmission line and show the students that the final loss is in the form of heat.Through the experimental test,this teaching aid can be used in the classroom demonstration of the course"Electric Energy Transmission".It can be proved that the high voltage transmission mode can effectively reduce the loss on the transmission line and improve the transmission efficiency.