The paper discusses the technique of increasing surface power voltage class from 380v to 660v.
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。
This paper introduces the selection and scheme demonstration of higher voltage class in Northwest China Power Network, and conclusions made by main research institutes and experts' comments.
本文介绍了西北电网高一级电压选择和论证工作情况，主要研究单位的结论，以及专家评审意见。
When power generation and power consumption system with same voltage class is built within the bound of ground grid with zero ground potential, operators safety in the ground grid can be ensured.
在零地电位接地网的范围内建设同级电压的发电-用电系统，可保证在该接地网内工作人员的人身安全。
When power generation and power consumption system with same voltage class is built within the bound of ground grid with zero ground potential, operators safety in the ground grid can be ensured.
在零地电位接地网的范围内建设同级电压的发电-用电系统，可保证在该接地网内工作人员的人身安全。
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