NB/T 10282-2019 English PDF

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NB/T 10282-2019: Guide to the interpretation of metal-oxide surge arresters without gaps for alternating-current systems
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
NB/T 10282-2019	599	Add to Cart	5 days	Guide to the interpretation of metal-oxide surge arresters without gaps for alternating-current systems	Valid

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Basic data

Standard ID: NB/T 10282-2019 (NB/T10282-2019)
Description (Translated English): Guide to the interpretation of metal-oxide surge arresters without gaps for alternating-current systems
Sector / Industry: Energy Industry Standard (Recommended)
Classification of Chinese Standard: K40
Classification of International Standard: 19.020
Word Count Estimation: 26,276
Date of Issue: 1900-01-20
Date of Implementation: 1900-01-20
Issuing agency(ies): National Energy Administration

NB/T 10282-2019: Guide to the interpretation of metal-oxide surge arresters without gaps for alternating-current systems

---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.
Guide to the interpretation of metal-oxide surge arresters without gaps for alternating-current systems ICS 19.020 K 40 NB Energy Industry Standards of the People's Republic of China Test guidelines for AC gapless metal oxide surge arresters 2019-11-04 released 2020-05-01 implementation Issued by National Energy Administration

Table of contents

Foreword...II 1 Overview...1 2 Normative references...1 3 Terms and definitions...1 3.1 Lightning arresters of the same family...1 4 Lightning arrester information...1 4.1 Porcelain jacket surge arrester and composite jacket surge arrester...1 4.2 Gas Insulated Metal Enclosed (GIS) Lightning Arrester...4 4.3 Separate and uncharged shell arresters...5 5 Type test of arrester...6 5.1 Classification and test items of type test report of porcelain jacketed arrester and composite jacketed arrester...6 5.2 Type test report classification and test items of gas-insulated metal-enclosed (GIS) arresters...9 5.3 Classification and test items of separate and terminal arrester type test reports...10 6 Surge arresters of the same family...11 Appendix B (Normative Appendix) Example of the calculation of the repetitive charge correction coefficient in the repeated charge transfer tolerance test...16 Appendix D (informative appendix) Examples of typical lightning arresters of the same family...22

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. The revision of this standard adopts "STL Guidelines-IEC 60099-4 Edition 3.0.2014-06". Compared with the differences between this standard and "STL Guidelines-IEC 60099-4 Edition 3.0.2014-06", the main technical differences are as follows. --Added tests that are customarily used in my country but not included in the "STL Guidelines-IEC 60099-4 Edition 3.0.2014-06" Test content, such as. DC reference voltage test, leakage current test at 0.75 times DC reference voltage, etc.; --The scope of application has been increased with separate and shell-less lightning arresters. This standard was proposed by China Electrical Equipment Industry Association. This standard is under the jurisdiction of the Energy Industry Short-circuit Test Technology Standardization Technical Committee (NEA/TC10). Drafting organizations of this standard. Xi’an High Voltage Electrical Apparatus Research Institute Co., Ltd., China Power Purui Power Engineering Co., Ltd., Pinggao Toshiba Fang) Lightning Arrester Co., Ltd., Fushun Electrical Porcelain Manufacturing Co., Ltd., Xi’an Xidian Lightning Arrester Co., Ltd., Gansu Electric Apparatus Research Institute, Wenzhou Yikun Electric Co., Ltd., Shenzhen ABB Yinxing Arrester Co., Ltd., State Grid Shanghai Electric Power Research Institute, Evergrande Power Gas Co., Ltd., China Electric Power Research Institute, China Southern Power Grid Research Institute, Shanghai Electric Porcelain Factory Co., Ltd. Drafters of this standard. Sun Quan, Mi Pu, Tian Enwen, Che Wenjun, Yao Yusuo, Tang Xiaozhong, He Jimou, Li Fan, Zhang Suolong, Zhao Dongyi, Zhang Jiawen, Liu Fei, Zhang Shi, Li Bo, Jing Qian, Zhang Boyu, Lu Xuebin, Jia Lei, Wu Hui. This standard is formulated for the first time. Test guidelines for AC gapless metal oxide surge arresters

1 Overview

sequence. This standard applies to porcelain jacketed arresters, composite jacketed arresters, gas-insulated metal-enclosed gapless (GIS) arresters, and separated And the shell is not live arrester.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document.

3 Terms and definitions

3.1 Lightning arrester of the same family series The same series of lightning arresters have the same design structure and materials, and the metal oxide resistors used have the same specifications. Note 1.The definition of the same family of lightning arresters is only applicable to porcelain jacketed arresters and composite jacketed arresters. Note 2.Each type of arrester in the same family of lightning arresters differs only in rated voltage and continuous operating voltage, and should have the same nominal discharge current and the same The jacket design structure, each kind of arrester component should have the same sealing structure. See Appendix D for typical series of lightning arresters of the same family.

4 Lightning arrester information

This chapter specifies the surge arrester information that the manufacturer should provide to the laboratory before the test. Before the test, the manufacturer shall provide the specified parameters of the arrester, product information, resistor piece information, and arrester drawing information to the experiment room. The laboratory needs to check the arrester information provided by the manufacturer. 4.1 Porcelain jacket surge arrester and composite jacket surge arrester 4.1.1 Specified parameters of arrester The manufacturer shall provide the relevant specified parameters of the porcelain jacketed arrester and composite jacketed arrester, and the specified parameters should at least include those in Table 1. Content. 4.1.2 Lightning arrester product information The lightning arrester product information provided by the manufacturer shall at least contain the following content. --Surge arrester model and serial number; --Number of lightning arrester components; --Number of parallel columns; --The number of resistors assembled in each component; --Surge arrester design type. "A" or "B". 4.1.3 Metal oxide resistor information The manufacturer shall provide the following information of metal oxide resistors. --Number (if any); --Metal oxide resistor chip manufacturer (if the resistor chip is purchased outside, the name of the metal oxide resistor chip manufacturer must be clearly indicated); --Metal oxide resistor chip specifications. 4.1.4 Arrester drawing information The lightning arrester drawing information provided by the manufacturer should at least contain the content in Table 2. 4.2.2 Lightning arrester product information The lightning arrester product information provided by the manufacturer should at least include the following. --Surge arrester model and serial number; --Number of parallel columns; --The number of assembled resistors. 4.2.3 Metal oxide resistor information The manufacturer shall provide the following information of metal oxide resistors. --Number (if any); --Metal oxide resistor chip manufacturer (if the resistor chip is purchased outside, the name of the metal oxide resistor chip manufacturer must be clearly indicated); --Metal oxide resistor chip specifications. 4.2.4 Arrester drawing information The lightning arrester drawing information provided by the manufacturer should at least contain the content in Table 2. 4.3 Separate and uncharged shell arresters 4.3.1 Specified parameters of arrester The manufacturer shall provide the relevant specified parameters of the separate and uncharged shell arresters, and the specified parameters shall at least include those in Table 4. Content. b Suitable for power distribution type arresters. c Suitable for lightning arresters for power stations. d When the expected short-circuit current is 1kA and below, the rated value can be declared as "0". e The manufacturer needs to provide the applied overvoltage level and corresponding duration during the test. f The manufacturer needs to provide the peak value of the resistive component of the power frequency reference current of the arrester and the corresponding minimum power frequency reference voltage, the DC reference current and its corresponding g The manufacturer shall provide the specified value of the full current of the test sample and its resistive component under continuous operating voltage. h According to the test items to be carried out, the manufacturer needs to provide the specified value of the lightning impulse residual voltage under the nominal discharge current of the arrester, and the nominal discharge current I According to the required test items, the test parameters of lightning impulse voltage withstand test and power frequency voltage withstand test provided by the manufacturer. j Determine the test voltage in the long-term stability test. k √ means must provide. 4.3.2 Lightning arrester product information The lightning arrester product information provided by the manufacturer should at least include the following. --Surge arrester model and serial number; --Number of lightning arrester components; --Number of parallel columns; --The number of resistors assembled in each component. 4.3.3 Metal oxide resistor information The manufacturer shall provide the following information of metal oxide resistors. --Number (if any); --Metal oxide resistor chip manufacturer (if the resistor chip is purchased outside, the name of the metal oxide resistor chip manufacturer must be clearly indicated); --Metal oxide resistor chip specifications. 4.3.4 Arrester drawing information The manufacturer's drawing information for the arrester shall include at least the content in Table 2.

5 Type test of arrester

5.1 Type test report classification and test items of porcelain jacketed arresters and composite jacketed arresters When the porcelain jacketed arrester and composite jacketed arrester provided by the manufacturer are tested according to the test items in Table 5 and Table 6, and the results are checked If it meets the manufacturer's specified parameter requirements, the laboratory can issue the following related reports. --a type test report See Table 5 for the type test items of the porcelain jacketed arrester, and see Table 6 for the type test items of the composite jacketed arrester. 5.2 Type test report classification and test items of gas-insulated metal-enclosed (GIS) arresters When the gas-insulated metal-enclosed (GIS) arrester samples provided by the manufacturer are tested in accordance with the test items in Table 7, and the test results conform to When complying with the manufacturer’s specified parameter requirements, the laboratory can issue the following related reports. --a type test report The gas insulated metal enclosed (GIS) arrester type test items are shown in Table 7. Description. 5.3 Type test report classification and test items of separate and terminal arresters When the separate and terminal arresters provided by the manufacturer meet the specified requirements, the laboratory can issue the following related reports. --a type test report The type test items of separate and terminal arresters are shown in Table 8. AA

Appendix A

(Normative appendix) If the arrester or series of arresters in the type test are equipped with metal oxide resistors of different heights, the proportional unit shall be assembled during the test The height of the metal oxide resistors should meet the requirements in Table A.1.

Appendix B

(Normative appendix) Example of calculation of the repetitive charge correction coefficient in the repeated charge transfer tolerance test According to the maximum residual voltage value of the resistor used in the arrester design and the residual voltage value measured in the test product declared by the manufacturer, there may be a need to pass Over-correction factor to increase the test value of transfer charge. Before the test, the manufacturer needs to declare the maximum residual voltage value of the resistor used in the design.

Appendix C

(Informative appendix) In this example, the cooling curve of the proportional unit (PRS) will be lower than the cooling curve of the arrester at certain times. In this example, the proportional unit can still be used for the action load test and the power frequency voltage withstand time characteristic test, but the thermal stability test The starting temperature is higher than 60°C. The complete thermal equivalence verification process includes the following steps. -Test the entire arrester or arrester component; -Test the thermal proportional unit; --Calculate the relative temperature, compare the two cooling curves and calculate the compensation temperature. The starting temperature in this example should be at least 63.1°C. C.1 Test on the whole arrester or arrester components C.3 Compare two cooling curves to calculate relative temperature and compensation temperature The calculation of relative temperature and compensation temperature is only for the cooling phase. The process of the cooling phase is defined as 2 h (7.200 s). C.3.1 Calculation of relative temperature For each curve (lightning arrester and proportional unit), the relative temperature should be calculated according to the formula.

Appendix D

(Informative appendix) Examples of typical lightning arresters of the same family D.1 Single-element surge arresters and higher-voltage multi-element surge arresters made up of them in series Figure D.1 A typical series of arresters In the series of lightning arresters shown in Figure D.1, there are both single-element arresters and multi-element arresters, and arresters B and C The component is lightning arrester A. D.2 Single element arresters with different heights or the same height due to the use of different numbers of resistors Figure D.2 A typical series of arresters In the series of lightning arresters of the same family shown in Figure D.2, the arresters are all composed of single components. Each type of arrester uses a different number of resistors. The height of lightning arrester B and arrester C is the same. The arrester B and arrester C of the same height can be called a series of arresters of the same family. Arrester A, arrester B, arrester C and arrester D of different heights can also be called a series of arresters of the same family. ......

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