LiangWaZi | 亮娃子

Go straight to Daliang Mountain on Sunday to deliver power to customer equipment

Original link: https://www.nwazi.com/post/daliangshan.html This project has been completed for more than half a year. I remember that I visited it once in March. At that time, it was a low-voltage temporary power supply to the other party. Because the high-voltage cable was not connected, it was impossible to send formal power. On Saturday, the other […]

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Deyang PetroChina’s treatment tank can’t be opened due to high voltage

Original link: https://www.nwazi.com/post/deyangzhong.html It has been ten years since the box substation was made by another manufacturer. It happens that we have a project to cooperate with PetroChina, so I stopped by to see and help solve the problem. The customer described the problem as the low-voltage neutral line is live, and one of the

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Abandoned Hope Primary School in Dujiangyan Adds Electricity Meter Fee Control

Original link: https://www.nwazi.com/post/feikongt.html Today is an exceptionally hot weather. Sitting in the office in this weather is exhausting and can’t keep up the energy. Just before noon, the after-sales service of the cooperative supplier took me to help him add a cost control trip. The weather is still running The construction site is so hot

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Calculation of transformer rated current and computer protection setting value

Original link: https://www.nwazi.com/post/weiji.html 1. Calculation of high and low voltage side current, transformer capacity/voltage level/1.732*rated current For example: Transformer capacity is 1000kVA High voltage side current: 1000/10/1.732=57.736A Low voltage side current: 1000/0.4/1.732=1443.418A 2. Calculation of the protection setting on the high voltage side of the transformer: For example: the capacity of the transformer is 1000kVA,

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The frequent pop-up windows of 360 software are too annoying

Original link: https://www.nwazi.com/post/360tanchuang.html I haven’t noticed it before. Recently, my office computer and laptop often pop up 360 software advertisement pop-up windows. I always thought it was a browser pop-up window. As a result, I turned off all the personalized recommendations in the browser and it still popped up. Pop-ups. I haven’t been able to

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Qingbaijiang went on a business trip to change the cooling fan of the transformer

Original link: https://www.liangwazi.com/post/sanreji.html I went to Qingbaijiang again yesterday for a business trip. The customer described that the fan had abnormal noise. The customer didn’t know what the specific fan was. Let us check it and deal with it by the way. After the on-site inspection, it was determined that the problem was the transformer

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