A Study on the Development of ETEC-IGR Test Devices for the Reliability Evaluation of RCD and ETEC-DPS

In this study, ETEC-IGR was developed in order to test the residual current protective device (RCD) and electric fire prevention system (ETEC-DPS) used low-pressure electrical facilities. Furthermore, reliability of product verified with Minitab PGM. The designed supply single-phase two-wire power equipped an insulation transformer protect against surge voltages ground defects during testing. results revealed that load (IL) may linearly flow from 0 A 50 A, leakage (IG) resistance component (IGR) vary 0.0 mA 30 mA. standby 98.43 W when ETEC-DPS were connected. Moreover, analyzed as 97.59 only addition, interpreted 0.84 W, it judged characteristics excellent. heat dissipation environment, noise level, winding resistance, voltage fluctuation rate, AC/DC withstand met relevant regulations. normal distribution analysis standard deviation 0.3209, AD 0.520, P 0.171. Thus, data appropriate. measured found be more than 95% reliable, error also less 1 W. confidence interval box plot histogram analysis.