GB/T 22071.1-2018 English PDFUS$1239.00 · In stock
Delivery: <= 10 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 22071.1-2018: Test guide for instrument transformers -- Part 1: Current transformers Status: Valid GB/T 22071.1: Historical versions
Basic dataStandard ID: GB/T 22071.1-2018 (GB/T22071.1-2018)Description (Translated English): Test guide for instrument transformers -- Part 1: Current transformers Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K41 Classification of International Standard: 29.180 Word Count Estimation: 62,647 Date of Issue: 2018-12-28 Date of Implementation: 2019-07-01 Older Standard (superseded by this standard): GB/T 22071.1-2008 Regulation (derived from): National Standard Announcement No. 17 of 2018 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 22071.1-2018: Test guide for instrument transformers -- Part 1: Current transformers---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.Test guide for instrument transformers--Part 1. Current transformers ICS 29.180 K41 National Standards of People's Republic of China Replace GB/T 22071.1-2008 Transformer test guidelines Part 1. Current transformers Published on.2018-12-28 2019-07-01 implementation State market supervision and administration China National Standardization Administration issued ContentForeword III 1 Scope 1 2 Normative references 1 3 test items and test sequence 1 4 General test conditions 4 5 type test 4 6 routine tests 25 7 Special test 46 Supplementary requirements for Type 8 tests 56 Figure 1 Test sequence flow chart for type test and routine test Figure 2 Determine the resistance R0 value of the moment when the power is cut off. Figure 3 Altitude correction factor for temperature rise 8 Figure 4 Radio interference voltage test line 12 Figure 5 Accuracy test (comparative method) 15 Figure 6 Composite error test (direct method 1) 16 Figure 7 Composite error test (direct method 2) 16 Figure 8 short-time current test 24 Figure 9 Primary power frequency withstand voltage test 27 Figure 10 Example of test circuit for partial discharge measurement Figure 11 Example of a calibration circuit for partial discharge measurement 29 Figure 12 Non-capacitive transformer dielectric loss factor measurement 30 Figure 13 Capacitance type transformer partial capacitance and dielectric loss factor measurement (positive connection method) 31 Figure 14 Capacitance transformer overall capacitance and dielectric loss factor measurement 31 Figure 15 Ground-screen (last screen) dielectric loss factor measurement for capacitive transformers 32 Figure 16 Inter-section power frequency withstand voltage test 33 Figure 17 Secondary end power frequency withstand voltage test 34 Figure 18 Outlet terminal polarity test (DC test method) 36 Figure 19 Interturn overvoltage test (program A) 40 Figure 20 Interturn overvoltage test (program B) 41 Figure 21 Schematic block diagram of the YS-2 microcoulometer analysis system 42 Figure 22 Transfer Overvoltage Measurement. Impact Test Waveform 48 Figure 23 Transfer Overvoltage Measurement. General Test Arrangement 49 Figure 24 Transfer overvoltage measurement. GIS transformer test circuit 50 Figure 25 Schematic diagram of mechanical strength test 51 Figure 26 Insulation Thermal Stability Test (Line 1) 55 Figure 27 Insulation Thermal Stability Test (Line 2) 55 Figure 28 Insulation Thermal Stability Test (Line 3) 56 Table 1 Test item 2 Table 2 Types and pressures of gases in type test, routine test and special test 3 Table 3 Temperature rise limits for various components, materials and media of transformers 7 Table 4 Primary insulation level and withstand voltage of transformer 8 Table 5 Rain conditions for standard wet test 11 Table 6 Ratio difference and phase difference limits for measuring transformers (0.1 to 1.0) 13 Table 7 Ratio difference and phase difference limits for measuring transformers for special purposes (0.2S and 0.5S) 14 Table 8 Ratio difference limits for measuring transformers (levels 3 and 5) 14 Table 9 Error limits for P- and PR-rated protection transformers 14 Table 10 Error limits for TPX, TPY, and TPZ transformers 14 Table 11 Permissible partial discharge levels 29 Table 12 Dielectric loss factor allowable value of 32 for various oil immersed transformers Table 13 Oil-immersed transformers sealing performance test requirements 37 Table 14 Insulation oil breakdown voltage requirements 44 Table 15 dielectric oil loss factor (tan δ) requirements 45 Table 16 Insulation oil moisture content requirements 45 Table 17 Dissolved gas content in insulating oil requires 45 Table 18 Passing Overvoltage Waveform Requirements and Limits 48 Table 19 Static withstand test load 51 Table 20 Application of test load on primary terminal 52 Table 21 Temporary leakage rates allowed for gas systems 53 Table 22 Fire hazard of electrical products 54ForewordGB/T 22071 "Guidelines for Testing of Transformers" is divided into the following sections. --- Part 1. Current transformers; --- Part 2. Electromagnetic voltage transformers. This part is the first part of GB/T 22071. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part replaces GB/T 22071.1-2008 "Guidelines for Testing of Transformers Part 1. Current Transformers", and GB/T 22071.1- Compared to.2008, the main technical changes are as follows. --- Revised the normative reference documents (see Chapter 2 and Chapter 2 of GB/T 22071.1-2008); --- Listed specific test items (see Table 1); --- Improve the test sequence and give a test sequence diagram (see Figure 1 and 3.2 of GB/T 22071.1-2008); --- Re-improved and supplemented the relevant test items and test methods (see 3.1 and Chapter 5, Chapter 6, Chapter 7); --- Increased the relevant test requirements for equipment with maximum voltage of 750kV and 1000kV transformers (see Table 4). This part was proposed by China Electrical Equipment Industry Association. This part is under the jurisdiction of the National Instrument Standardization Technical Committee (SAC/TC222). This section drafted by. Shenyang Transformer Research Institute Co., Ltd., China Electric Power Research Institute, Dalian North Transformer Group Company, Dalian First Transformer Co., Ltd., Zhejiang Skyline Transformer Co., Ltd., Jiangsu Jingjiang Transformer Co., Ltd., special change Electric Power Kangjia (Shenyang) Transformer Co., Ltd., Hengyang Huarui Electric Co., Ltd., State Grid Jilin Electric Power Co., Ltd. Research Institute. The main drafters of this section. Zhang Xianzhong, Liu Yong, Wang Wei, Wang Renqi, Sha Yuzhou, Xu Wen, Li Taochang, Xiong Jiangyi, Wang Jiyuan, Liu Yufeng, Zeng Xiangshun, Tang Fuxin, Deng Xiaozhe, Huang Hua, Zhao Shixiang. The previous versions of the standards replaced by this section are. ---GB/T 22071.1-2008. Transformer test guidelines Part 1. Current transformers1 ScopeThis part of GB/T 22071 gives the test items, test sequence, general test conditions and test requirements of the current transformer. This section applies to the types of current transformers (hereafter referred to as transformers) specified in GB/T 20840.1 and GB/T 20840.2. Tests, routine tests and special tests. The test method given in this section can also be used as the handover test at the time of product acceptance.2 Normative referencesThe following documents are indispensable for the application of this document. 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 2421.1 Overview and Guide for Environmental Testing of Electrical and Electronic Products GB/T 2423.17 Environmental testing of electric and electronic products - Part 2. Test method test Ka. salt spray GB/T 2423.23 Environmental testing - Part 2. Test method test Q. Sealing GB/T 4208 enclosure protection grade (IP code) GB/T 4756 petroleum liquid manual sampling method GB/T 5169.2 Fire hazard testing for electric and electronic products - Part 2. General guide to fire hazard assessment GB/T 5169.9 Fire hazard testing for electric and electronic products - Part 9. Guidelines for pre-selection of fire hazard assessment General GB/T 5169.18 Fire hazard testing for electric and electronic products - Part 18. General GB/T 5585.1 Copper, aluminium and alloy alloys for electric purposes - Part 1 . Copper and copper alloy bus GB/T 7354 partial discharge measurement GB/T 7674 gas insulated metal-enclosed switchgear with rated voltage of 72.5kV and above GB/T 11604 high-voltage electrical equipment radio interference test method GB/T 16927.1 High Voltage Test Technique Part 1. General Definitions and Test Requirements GB/T 16927.2 High voltage testing techniques - Part 2. Measuring systems GB/T 19001 quality management system requirements GB/T 20138 Protection level of external mechanical collision of electrical equipment casing (IK code) GB/T 20840.1 Transformers - Part 1. General technical requirements GB/T 20840.2-2014 Part 2. Supplementary technical requirements for current transformers ISO 3231 Paint and varnish resistance to moisture containing sulphur dioxide (Paintsandvarnishes-Deter- Aminationofresistancetohumidatmospherescontainingsulfurdioxide)3 test items and test sequence3.1 Test project Type test, routine test and special test items are shown in Table 1. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 22071.1-2018_English be delivered?Answer: Upon your order, we will start to translate GB/T 22071.1-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 10 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 22071.1-2018?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 22071.1-2018 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
