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What is the reason for the blackout in Guangzhou in 2017

Since yesterday, there has been a large-scale blackout in Guangzhou. It's really hard to cut off power in such a hot weather. Why do you cut off power in a large scale in summer when you need it most?

On the 30th, a number of citizens called this newspaper to report that there was a power outage and tripping. The reporter learned from Guangzhou power supply bureau that most of the tripping places were villages in the city. In recent years, there have been more and more houses built in the villages in the city, and the power consumption far exceeds the reported installed capacity of the residents, resulting in power shortage. The key to solve the problem is to speed up the addition of distribution transformers. Cooperation from all parties, including village committees, is needed.

Guangzhou Power Supply Bureau said it had not reached the historical peak yet. The power supply of Guangzhou power grid is sufficient this summer, which can generally meet the electricity demand of the citizens. At the same time, after three years of centralized renovation, the problem of power consumption in more than 300 villages in Guangzhou has been basically solved as a whole. At the same time, due to the late implementation of self financing investment projects of some villages and communities, the difficult location of power houses, and construction obstacles, the progress of power grid reconstruction in more than 20 villages and communities is seriously lagging behind. During the peak period of power consumption this summer, the power supply of these villages and communities will remain tense. (this article is exclusively compiled by WYH, editor of sihai.com. If you need to reprint it, please indicate the source and source. Related article link: http://www.4hw.com.cn/life/zone.html)

The reason of power failure in Guangzhou

The continuous high temperature leads to the peak of electricity consumption, and some parts of Guangzhou are in short supply of electricity.

Guangzhou Power Supply Bureau replied to the above situation one by one. The power failure in Shawei village, Wanqing county was caused by the burn out of the power supply station's division switch due to the high load. Guangzhou Power Supply Bureau immediately arranged for the emergency repair and replacement of the larger branch switch. Due to the hot weather, the load remained high, and the main switch burned out again during the second load peak. At present, the main switch with larger capacity has been replaced, and part of the load has been adjusted to the adjacent station area to temporarily relieve the high load condition. In recent years, the village has continued to build houses. The power consumption of the station area far exceeds the reported installed capacity of the residents, and the pressure of power supply for equipment is increased. At present, the power house has been built in the area adjacent to the village, which is in the testing stage. In the near future, the power transmission can be realized to relieve the pressure of power supply in the area. (this article is exclusively compiled by WYH, editor of sihai.com. If you need to reprint it, please indicate the source and source. Related article link: http://www.4hw.com.cn/life/zone.html)

In recent years, the disordered development of villages in the city has led to the overload operation of distribution transformer. During the peak period of power consumption in summer, the phenomenon of low-voltage overload burnout often occurs in distribution transformer, which leads to power failure of users. There are 14 distribution transformers in the area, of which 4 have been put into operation in the past two months, which has relieved part of the load, but has not fully met the power consumption situation of the village. In addition, we are further negotiating with the village about the land use of the power house and the new platform area with self financing funds to further solve the power consumption situation.

The highest load rate of transformer in nanbianjie street of Zhucun, Tianhe District was 133% on the night of July 29, which belongs to overload station area. The reason for the power failure is that the fuse of the low-voltage switch is burnt out due to the overload of the line. The fuse has been repaired and replaced and the power transmission has been restored that night. The staff of the power supply bureau adjusted part of the load in the station area to the surrounding station area to temporarily alleviate the power outage, which is expected to be completed in early August. The fundamental measure to solve the power outage in villages in the city is to speed up the addition of distribution transformers, but the village committee failed to provide the land location of the power house, resulting in the delay in the implementation of relevant power transformation projects.