On May 15, a number of citizens in Chongzhou City, Chengdu, Sichuan Province took pictures of black smoke circles in the sky and felt very curious. Jimu news reporter learned that the black smoke ring is caused by the failure of a local power facility. [Video] shot by several Chongzhou netizens( https://weibo.com/1720962692/LtfVk64oE ) It shows that black smoke rises somewhere, forming a large black circle above the black smoke, floating in the sky, and many citizens are looking up**
Several residents of Daoming Town, Chongzhou city told the Jimu news reporter that they saw the circle in the sky near the evening of May 15, but they didn't know what the specific situation was.
What is a black circle? Jimu news reporter noted that some netizens said it was caused by the failure of a local power facility in Chongzhou city.
Jimu news reporter then contacted the staff of the power unit and said that it was really the black smoke ring caused by the fault. Because of the heavy load of the equipment on that day, the temperature of the cooling oil in the equipment was too high, which led to the failure.
