|
US$839.00 ยท In stock
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
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 1094.18-2016 | English | 839 |
Add to Cart
|
5 days [Need to translate]
|
Power transformers -- Part 18: Measurement of frequency response
| Valid |
GB/T 1094.18-2016
|
PDF similar to GB/T 1094.18-2016
Basic data | Standard 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 definitions
3 the purpose of frequency response measurement
4 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 8
6 measurement records
6.1 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 33
Foreword
GB 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 measurements
1 Scope
This 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 definitions
The 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. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 1094.18-2016_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 1094.18-2016_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|