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Table 3 The thresholds of the overloading KPI class (first part) and the voltage KPI class (second part)

From: Enhancing power quality in electrical distribution systems using a smart charging architecture

E R 1 R Y 1 Y G 1 G Y 1 Y R 1 R E 1
400kVA 300kVA 150kVA 0kVA 0kVA 0kVA
E R 2 R Y 2 Y G 2 G Y 2 Y R 2 R E 2
220.94V 222.94V 223.94V 237.94V 238.94V 240.94V