| 摘要 |
PURPOSE: A device for testing a power module is provided to be capable of easily and simply measuring partial discharge in a dielectric gel. CONSTITUTION: Collectors(10) of the power module are electrically connected together with the first circuit(13) which is connected to the first terminal(31) of a test device(30). Emitters(11) of a power module(1) are electrically connected together with the second circuit(14) which is connected to the second terminal(32) of the test device(30). A direct current voltage is applied by a generator(15) between a control gate terminal(12) and the emitters(11), which are connected together by the second circuit(14), to turn off the IGBT of the three power components(2) of the module(1). When all these electrical power supply conditions are verified, partial discharges are measured between the first circuit(13) and the second circuit(14) by a conventional measuring instrument(21).
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