Design and implementation of an over-current static relay on a personal computer

Abstract

Application of the static relay in a system will improve the efficiency of the current transformer. The static relay does not use a contact mechanism. Static components are divided into two parts: 1) Passive Static and 2) Active Static. This thesis deals with the design and implementation of an over-current static relay on a personal computer. The implementation of interfacing an over-current static relay with a modern integrated computerized system is presented. The design method significantly increases the accuracy of the current transformer. The use of the static components in this relay design is to improve the reactive speed of the relay as compared to the electromagnetic or conventional relays. An over-current static relay is desired, and its continuation function on a personal computer is investigated. A digital computer program for simulating the system's response is developed not only for checking the correctness of the program itself, but also as a part of the over-current static relay design. The concept of trust units with the graphical results and listing of the digital computer simulation are given in this thesis.