openego / eDisGo / 40861378973

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github

Build the station voltage limits without fragmenting the DataFrame

_lv_allowed_voltage_limits added one column per LV grid to an empty
DataFrame in mode "stations". In grids with more than 100 LV grids,
pandas raised a PerformanceWarning ("DataFrame is highly fragmented")
for every further column, on every voltage check of the reinforcement.
Collect the columns in a dict and build the DataFrame once.

2 of 2 new or added lines in 1 file covered. (100.0%)

10128 of 11741 relevant lines covered (86.26%)

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