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Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 1094.18-2016: Power transformers -- Part 18: Measurement of frequency response Status: Valid
Basic dataStandard ID: GB/T 1094.18-2016 (GB/T1094.18-2016)Description (Translated English): Power transformers -- Part 18: Measurement of frequency response Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K41 Word Count Estimation: 42,436 Date of Issue: 2016-08-29 Date of Implementation: 2017-03-01 Regulation (derived from): National Standard Announcement 2016 No.14 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 1094.18-2016: Power transformers -- Part 18: Measurement of frequency response---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.Power transformers - Part 18. Measurement of frequency response ICS 29.180 K41 National Standards of People's Republic of China Power transformer Part 18. Frequency response measurements (IEC 60076-18..2012, MOD) 2016-08-29 released 2017-03-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released Directory Preface III 1 Scope 1 2 terms and definitions3 the purpose of frequency response measurement4 Measurement method 2 4.1 Overview 2 4.2 Test product status 3 4.3 Measurement wiring and inspection 4 4.4 Measurement method 4 4.5 Frequency range and measurement point 7 5 Measuring equipment 7 5.1 Measuring instruments 7 5.2 Measuring leads 8 5.3 Impedance 86 measurement records6.1 Record data for each measurement 9 6.2 Supplementary record information for each set of measurements 9 Appendix A (informative) frequency response and influencing factors 11 Appendix B (informative) Application of frequency response measurements Appendix C (normative) Measuring lead connection 27 Appendix D (informative) Measurement example 30 Appendix E (informative) XML data format Reference 35 Figure 1 Schematic diagram of frequency response measurement circuit Figure A.1 Frequency response measurement results 11 Figure A.2 Comparison of frequency response measurement results with reference measurements Figure A.3 Comparison of measurement results for the same transformer frequency response Figure A.4 Comparison of frequency response measurements of similar transformers Figure A.5 Comparison of three-phase transformer phase-to-phase frequency response measurements Figure A.6 General relationship between the frequency response of the high-voltage winding of a large autotransformer and the structure of the transformer and the measurement of the wiring 15 Figure A.7 Effect of the third winding triangular wiring on the frequency response of the series winding Figure A.8 Effect of the knot neutral point on the third winding frequency response Figure A.9 Effect of the knot neutral point on the frequency response of the series winding Figure A.10 Effect of internal lead on connected windings and on-load tap-changer on inter-phase frequency response 17 Figure A.11 Effect of measurement direction on frequency response Figure A.12 Effects of different liquid insulating media on frequency response Figure A.13 Effect of oil filling on frequency response Figure A.14 Effect of DC injection test on frequency response Figure A.15 Effect of casing on frequency response Figure A.16 Effect of temperature on frequency response Figure A.17 Example 22 of poor measurement Figure A.18 part of the bypass winding part of the axial collapse and local inter-turn short before and after the corresponding frequency response and damage to the part of the photo 22 Figure A.19 low-voltage winding due to the failure of the clamp occurred before and after the axial collapse of the frequency response and damage to the site photo 23 Figure A.20 Frequency response of the tapered winding of the conductor and its damage Figure C.1 Method - Wiring 28 Figure C.2 Method Three Wiring 29 Figure D.1 Wiring diagram of the autotransformer with wire end tap changer Figure D.2 YNd1 connection three-phase transformer winding between the inductive connection measurement wiring diagram 32 Figure D.3 YNd1 connection Three-phase transformer winding Capacitive connection measurement wiring diagram 33 Figure D.4 YNd1 connection three-phase transformer end-to-end short-circuit measurement wiring diagram 33 Table 1 Standard measurement method of tapered star winding with 5 Table 2 Non-tapered angle junction winding standard measurement 6 Table 3 Additional measurement formats Table D.1 Standard end-to-end measurement of three-phase autotransformers Table D.2 Tap changer wiring Table D.3 Inductive connection measurement of YNd1 junction three-phase transformer winding Table D.4 YNd1 connection Three-phase transformer winding Capacitive connection measurement 33 Table D.5 YNd1 connection three-phase transformer end-to-end short-circuit measurement 33ForewordGB 1094 "Power Transformers" currently contains the following parts. - Part 1. General; - Part 2. temperature rise of liquid immersion transformers; - Part 3. Insulation level, insulation test and external insulation air gap; - Part 4. Guidance on lightning shock and operational impact tests for power transformers and reactors; - Part 5. Ability to withstand short circuits; - Part 6. Reactors; - Part 7. Guidelines for oil - immersed power transformers; - Part 10. Sound level determination; - Part 10.1. Guidelines for the application of sound levels; - Part 11. Dry - type transformers; - Part 12. Guidance for dry - type power transformers; - Part 14. Design and application of liquid immersion transformers using high temperature insulating materials; - Part 16. Transformers for wind power generation; - Part 18. Frequency response measurements. This section is part 18 of GB 1094. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part uses the re-drafting method to modify IEC 60076-18..2012 "Power Transformers Part 18. Frequency Response Measurements". The technical differences between this part and IEC 60076-18..2012 are as follows. In order to adapt to China's national conditions, the original table 1 in the "phase 1 outlet" "phase 2 outlet" "phase 3 outlet" were used "A phase outlet End "" B phase out of the terminal "" C phase outlet "instead; In order to adapt to our national conditions, "A, U, R or 1", "B, V, S or 2", "C, W, T or 3" in the original table 2 "A-phase outlet" "B-phase outlet" "C-phase outlet" instead. This part also makes editorial changes to IEC 60076-18..2012. - Amend Annex A, Appendix B and Appendix C of the original text to appendix C, appendix A and appendix B of this section. This part is made by China Electrical Equipment Industry Association. This part is part of the National Standardization Technical Committee of Transformers (SAC/TC44). This part of the drafting unit. Guangdong Power Grid Co., Ltd. Electric Power Research Institute, Shenyang Transformer Research Institute Co., Ltd., China Qualification Assessment National Accreditation Center, China Southern Power Grid Science Research Institute Co., Ltd., State Grid Jilin Electric Power Co., Ltd. Electric power research Hospital, Wolong Electric Group Beijing Huatai Transformer Co., Ltd., Baoding Tianwei Insulation Electric Co., Ltd., TBEA Hengyang Transformer Limited company, Hainan Witt Electric Group Co., Ltd., Pearl Electric Co., Ltd., Guangdong Orian Power Equipment Co., Ltd. This part of the main drafters. Lin Chunyao, Zhang Xianzhong, Chen Di, Liu Jie, Zhou Dan, Zhao Linjie, Ao Ming, He Baozhen, Guo Man Sheng, Xie Wenying, Xu secret, Cai Dingguo, Wang Wenguang. Power transformer Part 18. Frequency response measurements1 ScopeThis part of GB 1094 specifies the method and equipment for the frequency response measurement of the equipment at the site and at the factory. The measurement can also be used to measure the running equipment. Interpretation of the results of the analysis does not belong to the normative content of this part, only attached Some guidance is given in document A. This section applies to power transformers, reactors and the like.2 terms and definitionsThe following terms and definitions apply to this document. 2.1 Frequency response frequencyresponse In a certain frequency range, one end of the voltage source excitation by the two ends of the measured voltage amplitude and phase angle difference. Note 1. The frequency response measurement result is the amplitude ratio and the phase angle difference at the specific frequency in a certain frequency range. Note 2. The measured voltage is through the impedance of the voltage, and therefore also with the current. 2.2 Frequency response analysis frequencyresponseanalysis; FRA Detection of damage by frequency response measurements. Note. The abbreviations SFRA (Swept Frequency Response Analysis) and IFRA (Pulse Frequency Response Analysis) are used to refer to the sweep voltage source excitation and pulse voltage Frequency Response Analysis of Source Excitation. This part applies to SFRA and IFRA when the measuring device meets the requirements of Chapter 5. 2.3 Power lead sourcelead Is connected to the lead on the voltage source of the measuring device used to provide the input voltage to the test object. 2.4 Reference lead Vin Is connected to the lead on the reference channel of the measuring device used to measure the input voltage of the test object. 2.5 Response lead response Vout Connected to the lead on the response channel of the measuring device used to measure the output voltage of the test object. 2.6 End-to-end measurement The frequency response measurement on a single coil (phase winding), the power supply lead and the reference lead (Vin) are connected to one end of the coil, and the response lead (Vout) to the other end. 2.7 Measurement of capacitive connection For the measurement of the frequency response of two adjacent coils (in-phase windings), the power supply leads of the measuring instrument and the reference lead (Vin) are connected to a winding ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 1094.18-2016_English be delivered?Answer: Upon your order, we will start to translate GB/T 1094.18-2016_English as soon as possible, and keep you informed of the progress. 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