The thesis discussed the fundamental which is voltage grade, reliability, connection mode, transformer load and power equipment.
论文阐述了城市电网规划中电压等级、供电可靠性、接线方式、变压器负荷率取值和供电设施的基本原则。
参考来源 - 城市电网改造及优化规划的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Two voltage grade being perfected comparatively are put forward.
提出较为完善的两个电压等级序列。
Features: 1, and sets device configuration full, voltage grade complete;
成套装置配置完整，电压等级齐全； ；
Calculating different voltage grade networks of magnetic coupling, is used to convert into a voltage grade or standard system of unit.
对于经过多重变压器耦合的电力系统复杂网络，惯常采用归算到同一电压级或标么值下去进行计算的方法。
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