期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：4
页码：5434
DOI：10.15680/IJIRSET.2016.0504176
出版社：S&S Publications
摘要：The transformer is a static device, which converts power from one level to another level. The aim of theproject is to protect the transformer under overload condition by load sharing. Due to overload on transformer, theefficiency drops and windings get overheated and may get burnt. Thus by sharing load on transformer, the transformeris protected. This will be done by connecting another transformer in parallel through a micro-controller. The microcontroller compares the load on the first transformer with a reference value. When the load exceeds the reference value,the second transformer will share the extra load. Therefore, the two transformer work efficiently and damage isprevented. In this project three modules are used to control the load currents. The first module is a sensing unit, whichis used to sense the current of the load and the second module is a control unit. The last module is micro-controller unitand it will read the analogue signal and perform some calculation and finally gives control signal to a relay. A GSMmodem is also used to inform the control station about switching. The advantages of the project are transformerprotection, uninterrupted power supply, and short circuit protection. When designing low-voltage power system to thesupply large load currents, paralleled lower-current modules are often preferred over a single, large power converter forseveral reasons. These include the efficiency of designing and manufacturing standard modular converters which canbe combined in any number necessary to meet a given load requirement and the enhanced reliability gained throughredundancy.
关键词：Transformer Overload; Microcontroller; Uninterrupted Power Supply
