GB/T 27747-2011High-voltage alternating current disconnecting circuit-breakers for rated voltages of 72.5 kV and above (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

This standard and GB/T 11022, GB 1984, GB 1985 together. To simplify the representation of the same requirements, this standard reg number 11022 consistent with GB/T . Supplementary content of these clauses are given in the same reference under the heading, and additional terms numbered starting from 101.

This standard uses redrafted law revision using IEC 62271-108:2005 "Part 108 high-voltage switchgear and control equipment. the amount 72.5kV and above constant voltage AC high voltage isolation breaker. " this standard and IEC 62271-108:2005 main difference is reflected in.

--- Rated frequency.

According to the actual situation of China's power grid, removing the IEC 62271-108:2005 rated frequency of 60Hz;

--- Rated voltage.

According to China's power grid, the voltage range is divided into.

72.5kV, 126kV, 252kV, 363kV, 550kV, 800kV;

--- Terminals static load rating.

According to the level of the voltage level of the IEC 62271-108:2005 in Table 1 and the terminal rated current range of static load value Modify considered in a multi-column isolation breaker situation, circuit breakers and disconnectors side terminal side terminal static load value;

--- Increased Chapter 12. Effect of the relevant requirements of the product on the environment;

--- Appendix A Figure A.3 increase the circuit breaker and isolating switch interlock mechanism Fig.

The chapters in this standard, the order of the arrangement with the IEC 62271-108:2005 agreement, the contents of most of the provisions of IEC 62271-108.

2005 same, except that the main difference has been given instructions.

The standard proposed by China Electrical Equipment Industrial Association.

This standard by the national high-voltage switch equipment Standardization Technical Committee (SAC/TC65) centralized.

This standard was drafted. Xi'an High Voltage Apparatus Research Institute Co., Ltd., Sunrise Holdings Limited, China Electric Power Research Institute High Voltage switchgear Institute, Henan high level of electrical Co., Ltd., Xi'an high-voltage electrical Co., Ltd., Xi'an High Voltage Switch Co.

Ltd., New Northeast Electric (Shenyang) High Voltage Switchgear Co. Institute, high-voltage electrical machinery industry product quality inspection center (Shenyang), Ltd. Hangzhou Gaudet high voltage electrical equipment, ABB (China) Co., Ltd. High Pressure Technology Center, Ningbo Tianan (Group) Co., Ltd., Chint Electric Co., Ltd., Zhejiang Switch Factory Co., Ltd., Shaanxi Electric Power Research Institute, Shandong Taikai high voltage switch Ltd., Hebei Provincial Electric Power Research Institute, Shanghai Electric Power Transmission and Distribution Limited testing center.

Drafters of this standard. Tian Enwen, travel Yimin, Pingwu Jun, Xu Jingjiang, Pan Yongcheng, Dongchuan Qi, Li Qingyu, Guan Xing Yan, Wu Junhui, Mo Kang, Wang Tianxiang, Zhang Shu, Yang Kun, Deng Meng, Zhang interlocking, which Wang Kai, Gong Chen, Liu all, Su Weimin, Lu Zhen Mei, Yang Ren and Li Zhonghua, Panjin, Luo Shicong, Xingjian.

Rated voltage of 72.5kV and above AC isolation breaker

1 Overview

2 Normal and special service conditions

GB/T 11022 Chapter 2 apply.

3 Terms and Definitions

The following terms and definitions apply to this document.

Note 1. For ease of reference, GB/T 2900.19, GB/T 2900.20, part of the definition GB/T 2900.57 and GB/T 11022 in this re-listed.