This standard specifies general principles for static var compensator （SVC） based on thyristor technology， including basic requirements， operation and maintenance and solution of typical faults.
This standard is applicable to the types of SVC with thyristor-controlled reactor （TCR） and thyristor-switched capacitor （TSC）. Other types of SVC can refer to this standard.

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Foreword
1 Scope
2 Normativereferences
3 Terms and definitions
4 Basicrequirements
5 Operation and maintenance of SVC
6 Solution of SVC typical faults
Annex A （Informative） Spare parts

Electric Power Research Institute of State Grid Liaoning Electric Power Company Limited is in charge of this English translation. In case of any doubt about the contents of English translation， the Chinese original shall be considered authoritative.
This standard was proposed by China Electricity Council.
This standard was prepared by Electric Power Standardization Technical Committee for Power Quality and Flexible Transmission System.
The main development organizations： State Grid Liaoning Power Supply Co.， Ltd.， State Grid Smart Grid Research Institute， State Grid Xinjiang Electric Power Research Institute， State Grid Gansu Electric Power Company Electric Power Research Institute， Rongxin Power Electronics Co.， Ltd.， State Grid Hubei Electric Power Company Electric Power Research Institute， Shandong Disheng Electric Co.， Ltd.， State Grid Liaoning Electric Power Co.， Ltd. Anshan Power Supply Company， Guangxi Power Grid Corporation Electric Power Research Institute， State Grid Hebei Electric Power Company Zhangzhou Power Supply Company， Shandong Taikai Power Electronics Co.， Ltd.
The main drafters： Ge Weichun， Zhao Gang， Yu Yongjun， Qin Rui， ZuoQiang， Xia Yongjun， Zu Yihong， Sun Shimin， Liu Lu， Liu Jun， He Jianghan， Gao Hongmei， Fan Depin
The main translation organizations of the English version： Electric Power Research Institute of State Grid Liaoning Electric Power Company Limited.
The main translators ofthe English version： Ge Weichun， Gao Qiang， Zhang JunYang， Pan Jiayu， Cheng Dawei， Huang Chuan， Zeng Hui， Zhao Gang， Yu Yongjun， Qin Rui， Zuo Qiang， Xia Yongjun， Zhu YiHong， Sun Shimin， Liu Lu， Liu Jun， He Jinghan， Gao Hongmei， Fan Deping， Liu Qi， Yuan Feng， Zhong Dantian， Wang Maojun， Guo Jinsong， Yu Miao， Guo Zhannan， Zhang Guangming， Han Yue， Li Xiaoming.
The comments or suggestions of this standard on execution period shall be sent to the Standardization Management Center of China Electricity Council （No.1， Alley 2， Baiguang Road， Beijing， China， 100761）.