The size of a typical conventional charging station
According to the conventional charging data of electric vehicles, a charging station is generally configured with 20~40 electric vehicles. This configuration is to make full use of late valley electricity for charging, but the disadvantage is that the utilization rate of charging equipment is low. If charging is also considered at peak time, 60~80 electric vehicles can be used to prepare a charging station. The disadvantage is that the charging cost increases and the peak load increases.
(2) Typical configuration of electric power matching of charging station (premise charging cabinet has harmonic processing function)
Plan a:
Design two 10KV cable inlet lines (with 3*70mm cable), two 500KVA transformers and 24 380V outlet lines. Among them, two are special outlet lines for quick charging (with 4*120mm cable, 50M long, and 4 loops), two are mechanical charging or spare outlet lines, and the rest are conventional charging outlet lines (with 4*70mm cable, 50M long, and 20 loops).
Plan b:
Two 10KV cables (with 3*70mm cables) are designed, and two 500KVA user boxes are set. Each box is equipped with four 380V outlet cables (with 4*240mm cables, 20M long, and 8 loops). Each outlet is equipped with a 4-loop cable branch box to supply power to the charging cabinet (with 4*70mm cables, 50M long, and 24 loops).
Fast charging
① Scale of typical fast charging stations
According to the data of electric vehicle quick charging, a charging station is usually configured to charge eight electric vehicles simultaneously.
(2) Typical configuration of electric power matching of charging stations
Plan a: Design two 10KV cable inlet lines (with 3*70mm cables), two 500KVA transformers, and 10 380V outlet lines (with 4*120mm cables, 50M long and 10 circuits) for the construction of the distribution power station.
Plan b: Design two 10KV cables (equipped with 3*70mm cables), set two 500KVA user boxes, each box is equipped with four 380V outlets for charging stations (equipped with 4*120mm cables, 50M long, 8-loop).
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