本文就地面供电电压等级由380v提高到660v电压技术问题进行探讨。
The paper discusses the technique of increasing surface power voltage class from 380v to 660v.
提高配电网电压等级是提升城市电网供电能力的有效途径。
To lift the voltage level of distribution network is an effective method to enlarge the power supply capacity of the urban network.
城市配电网因为其电压等级较低，为了提高系统供电的可靠性，曾广泛采用中性点不接地系统方式。
In distributions, because of its low-level voltage, its neutral point used to disconnect to the ground in order to improve its reliability.
简化配电的层次：如按的电压等级供电。
Simplified distribution levels: According to the power supply voltage levels.
本文深入论述了现代变频同步电动机的电压等级、绝缘结构和通风冷却，以供电机工程人员设计参考。
The paper presents modern transducer-fed synchronous motors voltage lever, insulation and ventilation, which give a reference for electrical engineer.
本文深入论述了现代变频同步电动机的电压等级、绝缘结构和通风冷却，以供电机工程人员设计参考。
The paper presents modern transducer-fed synchronous motors voltage lever, insulation and ventilation, which give a reference for electrical engineer.
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