The first input transformer, it can impact the total pressure switch, shock closing time can generally be put into the high pressure side. First the power transformer, the duration should be less than 10 minutes without exception.
The first input transformer, the total pressure can impact the closing, the impact of closing the high side generally be invested. The first power transformer, the duration should be not less than 10 minutes, no abnormal situation.
When you first put the transformer, feed full pressure shock, impact during closing can usually be detected by high voltage input. Transformer power for the first time, the duration shall be not less than 10 minutes, no exceptions.