Introduction

This English version，whose translation was organized by China Electric Power Planning and Engineering Institute，as authorized by National Energy Administration in compliance with relevant procedures and stipulations，is one of China s energy industry standards in English series.This English version was published by National Energy Administration in Announcement〔2019〕No.6 dated November 04，2019.

The English version was translated from the Chinese Standard

Design Regulation of Content and Profundity of High Voltage Direct Current Converter Station Connecting to the System DL/T 5393-2007，published by China Electric Power Press.

The copyright is owned by National Energy Administration of the People s Republic of China.In the event of any discrepancy in the process of implementation，the Chinese version shall prevail.

Many thanks would go to the staff from relevant standard development organizations and those who have provided generous assistance in the translation and review process.

For further improvement of the English version，all comments and suggestions are welcome and should be addressed to Electric Power Planning and Engineering Institute.No.65 Ande road，Xicheng District，Beijing 100120，China.Website:www.eppei.com.

Translating organizations：

Central Southern China Electric Power Design Institute Co.，Ltd.of China Power Engineering Consulting Group，China Electric Power Planning and Engineering Association，SUNTHER Industry Data Benchmarking Co.，Ltd.

Translating staff：

Central Southern China Electric Power Design Institute Co.，Ltd.of China Power Engineering Consulting Group:KANG Yi，LIN Tingwei，ZHANG Liping，CHEN Lingyun，YAN Jun，CHENG Xihai

China Electric Power Planning and Engineering Association:GUO Yali，SU Honghong

SUNTHER Industry Data Benchmarking Co.，Ltd.:LIU Jianxia，YE Tiantian

Review panel members：

TONG Mingdong　Electric Power Planning and Engineering Institute

CHEN Hongkun　Wuhan University

WANG Dun　Electric Power Planning and Engineering Standardization Management Center

LI Juanping　Electric Power Planning and Engineering Institute

WANG Xuesong　Electric Power Planning and Engineering Institute

WU Jing　Electric Power Planning and Engineering Institute

WU Jingkun　Northeast China Electric Power Design Institute Co.，Ltd.

WANG Shaode　North China Electric Power Design Institute Co.，Ltd.

YANG Panfeng　Northwest Electric Power Design Institute Co.Ltd.

YE Youjun　East China Electric Power Design Institute Co.，Ltd.

CHEN Zhigang　Guangdong Electric Power Design Institute Co.，Ltd.