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GB/T 34925-2017 English PDF

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GB/T 34925-2017: On-site inspections method of a.c. circuit systems for 110 kV substations on plateau
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GB/T 34925-2017English519 Add to Cart 6 days [Need to translate] On-site inspections method of a.c. circuit systems for 110 kV substations on plateau Valid GB/T 34925-2017

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Basic data

Standard ID GB/T 34925-2017 (GB/T34925-2017)
Description (Translated English) On-site inspections method of a.c. circuit systems for 110 kV substations on plateau
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard K04
Classification of International Standard 29.020
Word Count Estimation 26,284
Date of Issue 2017-11-01
Date of Implementation 2018-05-01
Regulation (derived from) National Standard Announcement 2017 No. 29
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 34925-2017: On-site inspections method of a.c. circuit systems for 110 kV substations on plateau


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
On-site inspections method of accircuit systems for 110 kV substations on plateau ICS 29.020 K04 National Standards of People's Republic of China Plateau 110kV substation AC loop system on-site inspection methods Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 test conditions 2 4.1 Test environmental conditions 2 4.2 Test power supply benchmark conditions and tolerances 2 4.3 Substation AC circuit test conditions 2 4.4 The main test equipment 2 5 pilot project and test sequence 3 5.1 Test Project 3 5.2 Test sequence 3 6 test methods 3 6.1 General 3 6.2 a circuit check 3 6.3 secondary circuit inspection 4 6.4 AC current loop of the system test 5 6.5 AC voltage loop system test 7 6.6 Inspection Process Requirements 7 Appendix A (informative) DC current loop resistance test record table 8 Appendix B (informative) voltage secondary circuit DC resistance test record 9 Appendix C (Normative) Transformer short-circuit impedance estimation method 10 Appendix D (Normative) AC circuit inspection diagram 13 Appendix E (informative) AC current loop system test record table 16 Appendix F (Normative) AC current loop verification current conversion method 17 Appendix G (informative) AC voltage loop system test records Table 19 Appendix H (Normative) AC voltage loop test secondary voltage conversion method 20 Appendix I (Normative) Substation AC circuit system inspection process 21 References 22

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard proposed by the China Electrical Equipment Industry Association. This standard by the National Highland Electrical Products Environmental Technology Standardization Technical Committee (SAC/TC330) centralized. This standard was drafted unit. Yunnan Power Grid Co., Ltd., Kunming Electric Institute of Science and Technology, Anhui Senyuan Electric Co., Ltd., Yunnan Province Substation Engineering Company, Yunnan Electric Power Research Institute (Group) Co., Ltd., Yunnan Power Grid Co., Ltd. Electric Power Research Institute, Hunan Power Detector Co., Ltd., Xi'an High Voltage Apparatus Research Institute Co., Ltd., Chongqing University, State Grid Sichuan Electric Power Company Electric Power Research Hospital, Guangdong Yuanguang Cable Industrial Co., Ltd., Beijing Career Distribution Automation Co., Ltd., Beijing Tianyuan Branch wind power technology limited liability Company, Wuhan Branch of China Electric Power Research Institute, State Grid Qinghai Electric Power Company Electric Power Research Institute, Shanghai Jiao Tong University, China Yangtze River Tri Gap Group Corporation, Chuan Kai Electric Co., Ltd., Hunan Hunan Electric Power Industry Co., Ltd. to power, Changsha City, Yue Tai Technology Development Co., Ltd., cloud Nannengtou Natural Gas Industry Development Co., Ltd., Yunnan Nengteisi Visech Co., Ltd., Xuchang Cape Detecting Technology Co., Ltd., Yunnan Electrical and Mechanical Vocational and Technical College, Shenzhen Electrical Science and Technology Institute. The main drafters of this standard.Chen Yong, Tian Enwen, Li Hong, Jin Weiping, Chen Ying, fruit ceremony, Sun Shuangcheng, Wu Xiqiu, Cheng Ying, Lee Ben-yu, Yang Jizhu, Xue Zhengshan, Jiang Xingliang, Liang Shibin, Ma Yi, Wang Ke, Zhang Zhijin, Fan Songhai, Gan Degang, Ye Zubiao, Cai Zhongguang, Jiang Lu Si, Yang Juan, Yang Zhihong, Tu Hailong, Zhang Xueli, Chen Guoping, Bai Yubao, Ning Qiaozhen, Wang Zhixin, Xu Tao, Wang Benjin, Kang Jun, Li Quanxi, wave, horsepower, Ji Guanghui, Li Guozhong, Liu Wengen, Yi Liang, Zhang Zhanjun, Xiao Minying, Chen Xinmei.

Introduction

This standard to test the plateau 110kV substation current transformer and voltage transformer primary circuit, secondary circuit wiring, and meter Volume, measurement, protection and other AC circuits for the purpose of the correctness of each other. To regulate the plateau 110kV substation AC loop test Method to avoid the system during operation and during operation due to polarity and ratio error caused by incorrect protection relay action, which brought to the grid Safe operation of the risk and improve the safe and stable substation operation, specially formulated this standard. Plateau 110kV substation AC loop system on-site inspection methods

1 Scope

This standard specifies the content, methods and requirements of on-site inspection of AC circuit of 110kV substation in high altitude area. This standard applies to the altitude of 1000m ~ 5000m area, new or renovation of conventional substation project, guide the exchange before the operation of the circuit On-site inspection Digital substation project can be used for reference.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 16927.1 high voltage test techniques - Part 1. General definitions and test requirements GB/T 16927.2 high voltage test techniques - Part 2. Measurement system GB/T 20626.1 special environmental conditions Highland Electrical and Electronic Products Part 1. General technical requirements GB/T 20645 Special environmental conditions Low voltage electrical equipment for use on the plateau GB 50150 electrical installations installation of electrical equipment handover test standards DL/T 474 (all parts) site insulation test implementation guidelines

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 AC circuit accircuit Substation AC current loop and AC voltage loop. 3.2 AC current loop accurrentcircuit Substation AC current loop and AC secondary current loop. AC primary current circuit refers to the main transformer, circuit breakers, disconnectors, bus, current transformer primary winding and other equipment and circuit order Connection combination. AC secondary current circuit refers to the current transformer secondary winding, secondary cable, terminal box, screen cabinet terminal block, cable, gateway measurement, following Electrical protection and monitoring devices such as secondary equipment and loop the orderly connection portfolio. 3.3 AC voltage circuit acvoltagecircuit Substation AC primary voltage and AC secondary voltage circuits. Exchange a voltage circuit refers to the main transformer, circuit breakers, disconnectors, bus, voltage transformer primary winding and other equipment and circuits are Sequence connection combination. AC secondary voltage circuit refers to the voltage transformer secondary winding, secondary cable, terminal box, cabinet terminal block, cable, relay protection And monitoring devices such as secondary equipment and loop the orderly connection combination.

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