METHOD OF TRV ANALYZING AND TRV ANALYZER WITH LC RESONANCE

摘要

The present invention provides a transient recovery voltage (TRV) using LC (LC) resonance for verifying and analyzing the breaking performance of a power device according to the transient phenomenon caused by the input and interruption of a power device such as a power circuit breaker in an electric circuit. The present invention relates to a method for analyzing a transient recovery voltage and a device thereof, and particularly adopts a pure symmetric current blocking method as well as measuring a unique transient recovery voltage (PTRV) for an active circuit using a DC power supply. The present invention relates to a transient recovery voltage analysis method using an LC (LC) resonance for measuring an ideal PTRV and to analyze its electrical characteristics, and an apparatus for applying the AC power in a power supply circuit, wherein the applied AC power is a rectifier. Converting to DC current through (D), and converting to a charge mode at the mode switch to charge the capacitive reactance (CM) When the capacitive reactance CM is fully charged, switching the mode switch MS to a measurement mode and injecting a current into a terminal of a power device as a test object, and the power device as a test object. It is characterized in that it comprises the step of blocking the current input to the terminal of, and measuring the inherent transient recovery voltage (PTRV) at the terminal of the power device to be tested.;LC resonance, transient recovery voltage, inherent transient recovery voltage, DC power