The rapid growth of new energy vehicles (NEVs) in Shenzhen has necessitated the expansion of the city's supercharging infrastructure. As of June 2024, Shenzhen has established a comprehensive charging network with over 7,600 stations and 190,000 facilities, including 44 supercharging stations. This study analyzes the operational characteristics and impacts of these supercharging stations on the local distribution network. Through clustering analysis of charging load data from 20 typical stations, four distinct load patterns were identified: "Multiple Peaks in a Day," "Noon Peak," "Morning Valley and Evening Peak," and "Flat." The study highlights the influence of user travel habits and charging costs on these patterns. Additionally, variations in load characteristics between weekdays and weekends were observed, indicating changes in user behavior. The findings provide insights into the efficient integration of supercharging facilities into urban power grids and support the strategic planning of future infrastructure development in line with Shenzhen's "Supercharging City" initiative.