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设备额定电压 1. 05 倍设备额定电压 1. 1 倍设备额定电压 1. 2 倍设备额定电压
10kV 10.5kV (10±5%)kV (10±10%)kV
(A) 3.15kV,6.3kV,10.5kV,35kV,110kV,220kV,500kV (B) 3.15kV,6.3kV,10.5kV,35kV,116kV,300kV,500kV (C) 3kV,6kV,10kV,35kV,110kV,220kV,500kV (D) 3kV,6kV,10kV,37kV,110kV,220kV,300kV
3kV,6kV,10kV,35kV,110kV,220kV,330kV,500kV 3kV,6kV,10kV,35kV,154kV,300kV,500kV 3kV,6kV,10kV,35kV,66kV,154kV,230kV,500kV 3kV,6kV,10kV,35kV,115kV,230kV,300kV,500kV
(A) 3.15kV,6.3kV,10.5kV,36.75kV,115.5kV,231kV,346.5kV,525kV (B) 3.15kV,6.3kV,10.5kV,37kV,115kV,230kV,347kV,525kV (C) 3.15kV,6.3kV,10.5kV,37kV,115kV,230kV,345kV,525kV (D) 3.15kV,6.3kV,10.5kV,36.75kV,115.5kV,230kV,345kV,525kV
10kV 10.5kV 10±5%)kV 10±10%)kV
电力系统的中性点一般指星型连接的变压器或发电机的中性点 目前,电力网大体分为:低压、中压、__、超__和特__五种 因为额定电压愈高,线路上电流愈小,相应的线路上功率损耗、电能损耗、电压损耗都变小,所以电力网电压等级越高越好 电力网的额定电压等级应根据运行经验、输送距离和输送容量经过全面的技术经济比较来确定