It was found that the water could not be pumped out during the test system unloading, and the crew was coordinated to check the pipeline. It was suspected that there was a blockage in the pipeline. It took a lot of time to disassemble the valve and pipeline section by section. In the evening, nine rectifier modules were upgraded, and the aging components and circuit boards were replaced. The test showed that the unloading function of system 2 was normal, the ballast of system 2 was tested, and the TRO value was always low, about 0.1. It was found that the dosing point and sampling point were too close, The dehydrogenation pipeline of electrolytic unit leaks, and the dehydrogenation pipeline needs to be upgraded next time<br>
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