LiangWaZi | 亮娃子

Various temperature protection settings for transformers

Original link: https://www.liangwazi.com/post/bianyaqi1.html Dry-type transformers generally trip at about 130 degrees, and oil-immersed transformers trip at about 90 degrees. The specified ambient temperature for transformers is 40°C, the minimum temperature for outdoor transformers is -25°C, and the minimum temperature for indoor transformers is -5°C. . The insulation level of the transformer is not the concept …

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Where is the most economical location for the low-voltage compensation cabinet?

Original link: https://www.liangwazi.com/post/buchang.html In the low-voltage power distribution room, the reactive power compensation cabinet is installed at the front end of the through-busbar (that is, close to the transformer side) or installed at the end of the through-busbar (away from the transformer side), which electrical installation position is better? good? The difference between these two …

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Dry-type transformer energy efficiency and economic considerations

Original link: https://www.liangwazi.com/post/biayaqi.html Our common dry change models SCB10, SCB11, and SCB13 are products that belong to the old national standard of GB20052-2013. The corresponding energy efficiency levels of the products are three-level energy efficiency, two-level energy efficiency and first-level energy efficiency. my country will implement a new energy efficiency standard on June 1, 2021, …

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There are quite a lot of records in the personal credit report of the Agricultural Bank of China

Original link: https://www.liangwazi.com/post/zhengxin.html I previously applied for a personal credit record inquiry on the Agricultural Bank of China APP, and today I sent a message saying that the result came out. I probably looked at it and found that I have quite a lot of records. Since I was ignorant when I was 17 years …

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The Huami GTR 2e smart watch, which was purchased by Pinduoduo with a subsidy of tens of billions, arrives

Original link: https://www.liangwazi.com/post/gtr2e.html Some time ago, I weighed myself on the weighing scale at my friend’s place, and it was already more than 130 catties. I suddenly felt that it was time to lose weight. The best way is to keep your mouth shut, open your legs, exercise and run, think about how I lost …

The Huami GTR 2e smart watch, which was purchased by Pinduoduo with a subsidy of tens of billions, arrives Read More »

The long-lost update, I am back again, recording the trip to Mount Balang

Original link: https://www.liangwazi.com/post/jiuwei.html Did some friends find that my website interface is different again [呲牙], yes, I changed the theme + program again, the same theme will lose some attractiveness and freshness after watching it for a long time, it took a while It took one afternoon to get it done, but fortunately, I am …

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Abandon Xiaomi’s 5 yuan monthly rental data card and start with a telecom unlimited speed data card

I have been using Xiaomi’s 5 yuan monthly rental data card before. Recently, I found that this consumption is really getting higher and higher, and the speed is limited at every turn, which is really troublesome. Mi Fan Card is a package jointly launched by China Telecom and Xiaomi. The specific package contents are as …

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How do I apply for a review if my electrician’s license has expired?

The electrician’s certificate that I finally got passed the test has expired unknowingly. I really want to cry without tears in the face of the expired electrician’s certificate. 1. The issue of expired electrician’s certificate The annual review of the electrician’s certificate has a rigid time requirement. Generally, the date of the next annual review …

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