Design And Implement Of Thermal Trip Test System For Circuit Breaker

Thermal Trip Test system for circuit breaker has long been bogged down in manualtesting. Namely, the performance parameter of individual item is measured byconventional equipments or professional testing instruments established on fundamentalexperiment theories. This kind of experimental method is generally based on discretedevices in terms of its structure, and focuses on manpower operation and reads facilitatedby manual calculation according to the usage mode. Therefore, from the view of datamanagement, it is unable to deal with large quantities of data simultaneously, and lacks invariable testing parameters stored by database which results in the incapability ofcomparison and summering. And as for the respect of error sourcing and security, it cannotfast locate error sources precisely and offers great threats of high-voltage contact tooperators, regardless of instruments and equipments damages. Owing to human influence,it is thus admitted that the traditional testing exists problems like reads errors magnitudes,low work efficiency, time consuming as well as testing repetitiveness, and short ofreliability and safety.On the other hand, the widely-use of PC and the rapid development of modern E-techprovide great opportunities to improve the speed and accuracy of Thermal Trip Testsystem for circuit breaker as well as dynamic tests experiment and new test methodsadoption. This brings tremendous changes in automatic testing fields. While reliability,safety and stability of test are improved by using automatic testing system which combinedPC’s abundant hardware and software resources with the new testing method, the cost anddifficulties are largely reduced, bring more benefits of social and economic efficiency.This subject aims to design Thermal Trip Test controller for circuit breaker centeredby PC. The hardware and software designed on the accordance to this program is endowedwith high reliability and stability, and meets the requirement of the tested products in allspecification, fulfilling all index demanded by the technology.