TRANSFORMER CHARACTERISTIC ANALYSIS APPARATUS USING INVERTER

摘要

PURPOSE: A transformer characteristic analysis apparatus using inverter is provided to forecast abnormal condition of transformer easily by analyzing frequency characteristic of several parameter clearly at input, output part of transformer. CONSTITUTION: A transformer characteristic analysis apparatus is composed of an inverter(21), a control part(22), and a signal analyser(23). The inverter(21) is connected to a transformer(24) in a series at upper stream of first side of the transformer(24) which power is input to and supplies power to first side of the transformer(24). The signal analyser(23) has electric signal input part of two channel, and a first channel receives and measures input of voltage(V1) and current(I1) which is output from the inverter(21), and a second channel receives and measures input of voltage(V2) and current(I2) which is output from secondary side of the transformer(24), and then the measured signal is transferred to an analysis part. The analysis part analyses frequency of voltage signal and current signal of each channel and outputs characteristic of the transformer by formula or graph.