Study on Seismic Economic-Loss Rapid Assessment Method of Transformer Substation

Abstract eng:
Rapid estimation of earthquake economic loss is of great significance for emergency rescue, post-disaster restoration and reconstruction of earthquake-stricken areas. Transformer substation is composed of different types of buildings and outdoor and indoor high-voltage electrical equipment. Their seismic capabilities (vulnerability) usually differ greatly from each other. So estimation of the station’s damaged condition and economic loss after the earthquake is difficult, and mostly, only an empirical rough estimation could be given. In this paper, equipment and facilities in the substation were classified into three major types of assets: buildings, outdoor high-voltage electrical equipment, and indoor monitoring equipment. Based on the information of the damaged condition and the economic loss of the substations in Wenchuan earthquake, loss ratios of these three types of assets in different earthquake intensity areas were summarized, proportional coefficients of these three types of assets of the substations were calculated, and then an economic loss estimation model of the substations was created, and tentative calculations were given. This work provides a reference for the emergency rescue, loss estimation, restoration and reconstruction of power facilities after an earthquake.

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