Abstract
The rectifier transformer is the power transformer of the rectifier equipment. The characteristic of the rectifier device is the AC input, DC output by rectifying the original. Converter transformer and voltage regulation transformer connect through oil and gas casing of Shanxi medium aluminium Huarun Co., Ltd. In order to solve the problems such as high test current caused by 200 kW no-load loss, insufficient capacity of single frequency conversion power supply, complicated field environment, and the great interference, a complete test plan is presented according to the conditions of the field, and the whole process of the successful test is described in detail. The key problems about the selection of test power, the selection of test frequency, and the choice of pressure mode are emphasised. The on-the-spot partial discharge test of the converter transformer has been successfully completed, which provides valuable experience for the test of large capacity transformer in the future.
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