GB/T 2900.19-2022Electrotechnical terminology - High-voltage test technique and insulation co-ordination (English PDF)

Foreword

This document was issued on 12 October 2022 by the State Administration for Market Regulation; Standardization Administration of the PRC and takes effect on 1 May 2023.

It is a GB/T standard: recommended rather than compulsory, but it is the text a Chinese reviewer applies when assessing a submission.

It is classified under ICS 01.040.29; 29.020, Chinese classification K04.

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents"

drafting.

This document is Part 19 of GB/T 2900 "Electrotechnical Terminology". GB/T 2900 has released more than 100 parts.

This document replaces GB/T 2900.19-1994 "Electrotechnical Terminology, High Voltage Test Technique and Insulation Coordination", and is consistent with GB/T 2900.19-

Compared with.1994, except for structural adjustment and editorial changes, the main technical changes are as follows.

--- Increased DC equipment rated voltage (see 3.1.7), nominal DC voltage (see 3.1.9), maximum DC voltage (see 3.1.10), non-break

Negative discharge (see 3.1.12.6), corona (see 3.1.14), leakage current (see 3.1.15), dielectric dissipation factor (see 3.1.16), insulation

Insulation resistance (see 3.1.17), altitude correction factor (see 3.1.21.4), standard withstand voltage test (see 3.2.1), test voltage prediction

period characteristics (see 3.2.2.1), the actual characteristics of the test voltage (see 3.2.2.2), the withstand voltage of the test product (see 3.2.2.3), the true

Terms and definitions such as guaranteed destructive discharge voltage (see 3.2.2.4), coordination withstand voltage (see 3.3.21);

--- Modified the high-voltage technology (see 3.1.1, 2.1 of the.1994 edition), power transmission and transformation equipment (see 3.1.3, 2.3 of the.1994 edition), three-phase

The nominal voltage of the system (see 3.1.4, 2.4 of the.1994 edition), the maximum voltage of the three-phase system (see 3.1.5, the.1994 edition

2.5), equipment rated voltage (see 3.1.6, 2.6 of the.1994 edition), maximum equipment voltage (see 3.1.8, 2.7 of the.1994 edition), function

Voltage (see 3.1.11, 2.10 of the.1994 edition), destructive discharge (see 3.1, 12.1, 4.4 of the.1994 edition), flashover (see 3.1.12.2,

4.1 of the.1994 edition), spark discharge (see 3.1.12.3, 4.2 of the.1994 edition), breakdown (see 3.1.12.4,.1994 edition

4.3), withstand voltage (set and statistical) (see 3.3.20, 3.38 of the.1994 edition), measurement system (see 3.4.2,.1994 edition

5.2) and other terms and definitions;

--- Deleted the standard impulse current (see 4.36 of the.1994 edition), partial discharge (see 4.53 of the.1994 edition), and series power frequency test

Transformers (see 5.1.2 of the.1994 edition), power frequency resonance test transformers (see 5.1.3 of the.1994 edition), digital camera systems

(see 5.2.8 of the.1994 edition), (screen) memory oscilloscope (see 5.3.5 of the.1994 edition) and other terms and definitions.

Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents.

This document is proposed by China Electrical Equipment Industry Association.

This document is under the jurisdiction of the National High Voltage Test Technology and Insulation Coordination Standardization Technical Committee (SAC/TC163).

This document is drafted by. Xi'an High Voltage Apparatus Research Institute Co., Ltd., China Electric Power Research Institute Co., Ltd., East China Electric Power Test

Inspection and Research Institute Co., Ltd., China Southern Power Grid Science Research Institute Co., Ltd., China Southern Power Grid Co., Ltd. EHV Transmission Company

Repair Test Center, Nanjing Nanrui Jibao Electric Co., Ltd., Liaoning High Voltage Electrical Appliance Product Quality Inspection Co., Ltd., Ningbo Vocational and Technical College,

State Grid Shaanxi Provincial Electric Power Co., Ltd. Electric Power Research Institute, State Grid Ningxia Electric Power Co., Ltd. Electric Power Research Institute, Siyuan Electric Co., Ltd.

Company, State Grid Sichuan Electric Power Company Electric Power Research Institute, State Grid Hebei Electric Power Co., Ltd. Electric Power Research Institute, State Grid Hubei Electric Power

Power Co., Ltd. Marketing Service Center (Metering Center), State Grid Tibet Electric Power Co., Ltd. Electric Power Research Institute, Wuhan University, State Grid Henan Province

Electric Power Research Institute of Electric Power Company, Xinjiang TBEA Automatic Control Equipment Co., Ltd., State Grid Zhejiang Electric Power Co., Ltd. Electric Power Scientific Research

Institute, State Grid Economic and Technological Research Institute Co., Ltd., China National Accreditation Center for Conformity Assessment, Xi'an Jiaotong University, Inner Mongolia Electric Power (Group) Co., Ltd.

Responsible companies Inner Mongolia Electric Power Research Institute Branch, Beijing Huatian Electromechanical Research Institute Co., Ltd., State Grid Anhui Electric Power Co., Ltd.

Academy of Sciences, State Grid Sichuan Electric Power Company Aba Power Supply Company, China Electrotechnical Society Electrotechnical Ceramics Professional Committee, Shanghai Jiaotong University

Science, China Yangtze Power Co., Ltd., Sichuan Mianzhu Southwest Electrical Equipment Co., Ltd., Shanghai Jiulong Electric Power (Group) Co., Ltd.

Transformer repair and test branch of the company, Jiangsu Shenghua Electric Co., Ltd., Hangzhou Kelin Electric Co., Ltd., Jiangsu Provincial Institute of Metrology, National

Electric Power Research Institute of Liaoning Electric Power Co., Ltd., Shandong Taikai Complete Electric Appliance Co., Ltd., Electric Power Science of Guangdong Power Grid Co., Ltd.

Research Institute, Beijing Jiaotong University, Chint Electric Co., Ltd., China Southern Power Grid Electric Power Technology Co., Ltd., North China Electric Power University, State Grid

Electric Power Science Research Institute of Chongqing Electric Power Company, Changzhou Borui Electric Power Automation Equipment Co., Ltd., Gansu Electrical Appliance Science Research Institute, Shijiazhuang Branch

Lin Electric Equipment Co., Ltd., Jiangsu Rugao High Voltage Electric Appliance Co., Ltd., State Grid Shanghai Electric Power Company Jinshan Power Supply Company.

The main drafters of this document. Li Qiang, Lei Min, Su Chunqiang, He Huiwen, Liu Chen, Si Wenrong, Wang Chunjie, Yue Changxi, Zhao Xiaobin, Zhang Changhong,

Yu Jicheng, Zhang Xiang, Yang Zuo, Shen Jianwei, Pu Lu, Wu Xutao, Wang Ting, Chang Jiasen, Liu Fan, Zheng Xiongwei, Zhong Lei, Wang Sike, Zhang Xiaoyong, Wang Dafei,

Guo Yue, Huang Daochun, Zhao Shujie, Xu Tiejun, Jin Yongtao, Li Xuan, Chen Di, Wang Feng, Shi Weidong, Wei Peng, Ding Yujian, Wang Jiansheng, Che Chuanqiang, Ai Xiaoyu,

Liu Jing, Wang Sen, Wang Daxing, Liu Chen, Liu Hongliang, Wang Hui, Wang Jun, Chen Shaoyi, Li Zhongliang, Huang Tianshun, Xie Dong, Pan Baoxiang, Hu Liangrong, Ju Zeli,

Jin Xin, Xie Shijun, Zheng Weixia, Li Xingwang, Zhao Zheng, Gao Chao, Guan Weimin, Sun Jixing, Pei Jun, Lu Qifu, Zhang Yang, Zhou Songsong, Ma Guoming, Jin Miao,

Li Yong, Du Daozhong, Miao Jun, Duan Hongmin, Yao Ning, Ran Wang, Fan Xingcai, Sun Jingjing.

The release status of previous versions of this document and the documents it replaces are as follows.

---First published in 1982 as GB/T 2900.19-1982, first revised in.1994;

--- This is the second revision.

Introduction

GB/T 2900 "Electrotechnical Terminology" is divided into several parts. The purpose of formulating electrotechnical terminology standards is to recognize

Provides precise, concise and correct definitions of the concepts and names the terms that express the concepts. The formulation of electrotechnical terminology standards is "standard-oriented

Standardized", which aims to help standard writers formulate standards, and help standard users understand and implement standards, and for normative (and

Translators of texts of a more general technical nature are also helpful. The purpose of developing electrotechnical terms is not to cover all kinds of electrical technical standards

All terms used, but to develop general terms of electrical technology.

This document is Part 19 of GB/T 2900.This document sets standards, technical documents, professional manuals, teaching materials and books, etc.

It is formulated based on the electrical terminology of high-voltage test technology and insulation coordination in the data, which can be used for scientific research, design, production, teaching and publishing of related majors.

Version and other relevant departments to use.

Electrotechnical Terminology High Voltage Test Technique and Insulation Coordination

1 Scope

GB/T 2900.19-2022 fixes the vocabulary of high-voltage testing and insulation coordination. Insulation coordination is the discipline of deciding how much insulation each part of a power system needs, given the overvoltages it will actually see — lightning strikes, switching surges, temporary power-frequency rises — and given the surge arresters installed to limit them. The choice is economic as much as technical: too little insulation and equipment fails in service, too much and a substation costs far more than it needs to. The reasoning runs on precisely defined quantities — withstand voltage and its several kinds, the standardised impulse shapes, protection level, safety factor — and each is defined in a way that a near-synonym would break. This part of the GB/T 2900 electrotechnical vocabulary defines the terms used in high-voltage test technique and insulation coordination, and applies to the high-voltage testing of three-phase systems and the related work. Under ICS 01.040.29 and 29.020 with CCS K04, it is the reference beneath the testing and coordination standards, written for high-voltage laboratories, equipment manufacturers, and transmission system designers.

This document defines the relevant terms used in the field of high voltage test technology and insulation coordination.

This document is applicable to the high voltage test involved in the three-phase AC system with the nominal voltage above 1kV and the DC system above 1.5kV.

The field of science and technology related to experimental technology and insulation coordination.

2 Normative references

This document has no normative references.

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 General terms

3.1.1

High-voltage technologyhigh-voltagetechniques

Technologies related to high voltage, strong electric field, insulation, overvoltage, insulation coordination and high voltage test under high voltage.

3.1.2

In the power system, the general term for high-voltage equipment for power generation, power transmission and distribution.

3.1.3

The general term for the power equipment and equipment used in the power system for transmission, distribution of electric energy and corresponding control, measurement and protection of the power system.

3.1.4

Un

A suitable and approximate voltage value used to express or identify the phase-to-phase voltage (effective value) of a three-phase system.

3.1.5

Us

Under normal operating conditions, the effective value of the highest operating voltage between phases that appears at any point in a three-phase system at any time.

3.1.6

The phase-to-phase voltage (effective value) marked on the equipment and related to certain operating characteristics of the system.

Note. For equipment not applicable to the use of this definition, it shall be specified in relevant professional standards.