|
US$1739.00 · In stock
Delivery: <= 10 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 18494.1-2014: Convertor transformers -- Part 1: Transformers for industrial applications
Status: Valid GB/T 18494.1: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 18494.1-2014 | English | 1739 |
Add to Cart
|
10 days [Need to translate]
|
Convertor transformers -- Part 1: Transformers for industrial applications
| Valid |
GB/T 18494.1-2014
|
| GB/T 18494.1-2001 | English | 919 |
Add to Cart
|
4 days [Need to translate]
|
Transformers -- Part 1: Industrial Transformers
| Obsolete |
GB/T 18494.1-2001
|
PDF similar to GB/T 18494.1-2014
Basic data | Standard ID | GB/T 18494.1-2014 (GB/T18494.1-2014) | | Description (Translated English) | Convertor transformers -- Part 1: Transformers for industrial applications | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | K41 | | Classification of International Standard | 29.180 | | Word Count Estimation | 79,735 | | Date of Issue | 9/3/2014 | | Date of Implementation | 2/1/2015 | | Older Standard (superseded by this standard) | GB/T 18494.1-2001 | | Quoted Standard | GB 1094.1; GB 1094.2; GB 1094.3; GB/T 1094.6; GB 1094.11; GB/T 2900.15-1997; GB/T 3859.1-2013; GB/T 3859.2-2013; GB/T 13499-2002 | | Adopted Standard | IEC 61378-1-2011, MOD | | Regulation (derived from) | People's Republic of China Announcement of Newly Approved National Standards No. 21 of 2014 | | 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 | | Summary | This Standard specifies the technical requirements for the assembly of power transformers and reactors within China lead off the converter equipment, design and test, this section does not apply to conventional AC power distribution transformers, this sec | GB/T 18494.1-2014: Convertor transformers -- Part 1: Transformers for industrial applications---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.
Convertor transformers - Part 1. Transformers for industrial applications
ICS 29.180
K41
National Standards of People's Republic of China
Replacing GB/T 18494.1-2001
Converter transformers
Part 1. Transformers for industrial use
(IEC 61378-1.2011, MOD)
Issued on. 2014-09-03
2015-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅴ
1 Scope 1
2 Normative references 1
3 Terms, definitions and abbreviations 2
3.1 Terms and definitions 2
3.2 Abbreviations 2
4 Category 3
4.1 Overview 3
4.2 normal conditions of use 4
4.3 Non-normal conditions 4
Rating 4 5
5.1 Overview 4
Rated capacity and load capacity 5.2 rated frequency of 4
5.3 rated voltage and operating voltage 4
5 Current Rating 5.4
Phase shift and three-phase transformer terminal identification 5.5 5
5.6 Nameplate 5
5.7 devices with filtering and compensating third winding 5
5.8 on-load tap-6
6 transformers and reactors load losses and voltage drop 6
6.1 Overview 6
6.2 distortion load current transformer load loss is determined 6
6.3 high-current windings inside the current distribution, consumption and hotspots 9
6.4 with a transformer winding core column with three or more windings geometry and magnetic coupling between windings harmonic eddy current loss
Effect 10
6.5 phase transformers, current balancing reactors, smoothing reactors in series and saturation reactor loss 14
6.6 transformers and reactors voltage drop 16
7 Converter transformers Test 17
7.1 Overview 17
7.2 commutation reactance and inductance measurements to determine the pressure drop 17
7.3 voltage ratio and phase shift measuring 18
18 7.4 Insulation Test
7.5 Test load loss 19
7.6 Temperature Rise Test 19
8 with a saturable reactor and (or) load phase transformer noise level 21
Appendix A (informative) converter transformer phase shift and coupling terminal identification 25
Annex B (informative) design review guidelines 31
Appendix C (Normative Appendix) GB/T 18494.1 and GB/T 3859.1 relevance rating 33
Annex D (informative) Load Cycle Example 40
Appendix E (normative) by loss measurement value transformer rated fundamental current transformer is determined under the non-sinusoidal current transformer rated currents
Running load loss 41
Annex F (informative) high current valve side winding current distribution measuring 57
Annex G (informative) is determined by measuring the turns ratio transformer voltage ratio and phase shift 64
Appendix H (informative) Saturation with embedded reactor rectifier transformer load test 68
Annex I (informative) (input total losses) Single shooting a converter transformer short-circuit test current and load loss 70
D Appendix J (informative) in the magnetic field caused by losses in the transformer tank is determined, the cabinet reviewed and loss calculations hot box
Simulation and guides 71
References 72
Figure 1 B6U or DB6 pulse Shuangqiaoshan connector 3
Figure 2 DSS6 pulse connection 3
Figure 3 is a valve winding leakage field close-coupled three-winding transformer 11
4 valve leakage field winding no coupling of three-winding transformer 12
Figure 5 valve side winding is loosely coupled dual concentric three-winding transformer leakage magnetic field 13
Figure 6 two valve windings axially split and is loosely coupled three-winding transformer leakage magnetic field 14
Figure 7 Typical saturation reactor regulator curve (the maximum voltage drop 0.00 containing control current) and the deviation 16
Figure A.1 counterclockwise phase shift 25
Figure A.2 Yd11 junction 25
Figure A.3 Yd1 junction 26
Figure A.4 Example A.1 phase shift 26
Figure A.5 Example A.2 phase shift 27
Figure A.6 ZZ junction 12-pulse converter transformer coupling 28
Figure A.7 Yanbian angle junction 12-pulse converter transformer coupling 29
Figure A.8 polygon links 12-pulse converter transformer coupling 30
Figure C.1 DB links over a rectangular wave current 33
Figure C.2 DSS coupled square wave current 34
Figure E.1 sectional view of the winding wire 42
Figure E.2 join group Yy0y6 terminal flag 45
Figure E.3 Connection Group Dd0y1 terminal flag 47
Figure E.4 DB rectangular positive half-wave coupler valve current 48
Figure E.5 DB coupling rectangular positive and negative half-wave current 49-valve side
Figure E.6 DSS rectangular wave coupling valve current 52
Figure F.1 valve side winding and the large current measurement device is placed Example 57
Figure F.2 transformer winding arrangement 59
Figure F.3-phase harmonic current distribution measurement circuit 59
Figure F.4 inversion harmonic current distribution measurement circuit 60
Figure F.5 phase current distribution measurements and finite element simulation results 60
Figure F.6 inverting current distribution measurements and finite element simulation results 63
Figure G.1 YD1 junction 64
Figure G.2 YD11 junction 65
Figure G.3 Pd0 7.5 coupling 65
Figure G.4 oscilloscope connection 66
Figure G.5 B phase lag phase 7.5 ° A waveform 66
Figure G.6 B phase leads A phase waveform 67 -7.5 °
Table 1 and calculate the coupling factor 22
Table C.1 DB6 pulse coupling to 25 harmonic components (ideal square wave current) 33
Table C.2 DSS6 pulse coupling to 25 harmonic components (ideal square wave current) 34
Table C.3 coefficient calculated comparative example 36
Table C.4 calculate the coefficient comparison 37
Table D.1 duty cycle Example 40
Table E.1 valve side winding characteristic harmonic currents and phase shift 43
Table E.2 winding temperature is 20 ℃ 44 resistance measurement values
Table E.3 network side and valve side winding characteristic harmonic currents and phase shift 46
Table E.4 test measurements 47
Table E.5 harmonic current 48
Table E.6 harmonic current 49
Table E.7 harmonic current 50
Table E.8 transformer tap position at rated load loss 51
52 Table E.9 harmonic currents
Table E.10 network side and valve side winding characteristic harmonic currents and phase shift 53
Table E.11 harmonic current 54
Table E.12 transformer tap position at rated load loss 55
Table F.1 phase compared with the current distribution measurements and finite element simulation results 61
Table F.2 inverting current distribution measurements and finite element simulation and comparison of results 62
Table G.1 single-phase ratio measurement 64
Foreword
GB/T 18494 "Converter transformers" includes the following sections.
--- Part 1. Transformers for industrial use;
--- Part 2. HVDC converter transformer;
--- Part 3. Application guide.
This section GB/T Part of 118,494.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 18494.1-2001 "Converter transformers - Part 1. Transformers for industrial use", and
GB/T 18494.1-2001 compared to the main technical changes are as follows.
--- The GB/T 18494.1-2001 only relates to a device with a white body and transformers Converter transformers This section applies to
One or more of the body of a transformer in the same tank; the GB/T 18494.1-2001 involves only for star (Y junction), and
Angle junction (D junction) to the transformer This section applies to Y junction, D knots and other phase-shifting transformer coupling (such as Z junction, Yanbian three
Coupling angle, polygon links, etc.);
--- Increasing the converter transformer classification. Standardize the classification and application of the converter, the normal conditions of use and non-normal conditions of use;
--- Clear the converter transformer phase shift and terminal identification;
--- Increased the converter transformer nameplate requirements;
--- Increased the unit with filtering and compensating third winding of the provisions;
--- Increasing the on-load tap provisions;
--- Increasing the internal high-current windings current distribution, consumption and described hotspots;
--- Increased inter-column with a core and transformer windings with three or more geometric arrangement and winding magnetically coupled harmonic eddy current loss
Impact;
--- Increase the saturation of transformer and reactor voltage drop;
--- Increased insulation test;
With specific emphasis on the load losses when --- Test and saturable reactors total box rectifier transformers and high-current external valve winding busbar
A short-circuit structure;
--- Table 1 has been updated to remove part of the link, listed in the table is a common link;
--- Add eight appendices, headings as "variable phase shifting transformer coupling and the terminal ID", "Design Review Guidelines" "GB/T 18494.1 and
GB/T 3859.1 relevance rating "" duty cycle Example "" large current valve side winding current distribution measuring "," measured by the turns ratio
To determine the amount of voltage transformer ratio and phase shift "," saturated with embedded reactor rectifier transformer load test "," change in the magnetic field
Three-dimensional simulation and conduction losses to determine the loss of housing and housing hot press review Housings caused in the calculation. "
This section uses redrafted law revision using IEC 61378-1.2011 "Converter transformers - Part 1. Transformers for industrial use."
This part of IEC 61378-1.2011 technical differences and their reasons are as follows.
--- In order to meet China's national conditions, in Chapter 1, the highest voltage winding valve device does not exceed 36kV to 40.5kV original text;
--- In order to meet China's national conditions, terminal ID that meets our habits instead of the original terminal identification;
--- On normative references, this part has been adjusted technical differences, in order to adapt our technical conditions, the adjusted situation
Focus is reflected in the status of Chapter 2, "Normative references", the specific adjustments are as follows.
• Modify with international standards of GB 1094.1, GB 1094.2, GB 1094.3, GB/T 1094.6, GB 1094.11,
GB/T 3859.1-2013 and GB/T 3859.2-2013, respectively, instead of the IEC 60076-1.2011, IEC 60076-
2.2011, IEC 60076-3.2000, IEC 60076-6.2007, IEC 60076-11.2004, IEC 60146-1-1.2009
And IEC 60146-1-2.2011;
• non-equivalent to international standards of GB/T 2900.15-1997 instead of IEC 60050 (421).1990;
• Removed IEC 60076 (all parts), IEC 60146 (all parts) and IEC /T R60616. 1978 references.
This section also made the following editorial changes.
--- Note the first chapter of "5.1" to "6.2";
--- Removed in 5.8 "(see description of IEC 60076-1)";
--- The last line of 6.1 "See 5.1 and 7.6" was changed to see "see 6.2 and 7.6";
--- 6.2 adds "n --- calculate the maximum harmonic number";
--- Contents 7.6.3.2 Note 1 by coupling "Every two secondary valve winding phase of close to 100%, see A.2 and A.3. Because
This eddy current losses in all windings see A.2 in Description 6-pulse and 12-pulse of A.3. "To" two per phase
Winding secondary valve close coupled to 100%. Therefore, the eddy current loss of all windings see E.3 and E.4 sixth pulse 12 pulse
Description wave. ";
--- The original text in Appendix A, Appendix B, Appendix C, Appendix E, Appendix F, Appendix G, Appendix H, amend Appendices I and J-oriented
Section Appendix E, Appendix I, Appendix F, Appendix B, Appendix J, Appendix H, Appendix G, Appendix A and Appendix C;
--- The original Appendix A (This section Appendix E) in the four "See 6.5" are changed to "see 6.4";
--- The original A.4 (This section E.4) "secondary 2a-2b-2c. I2R = 3 × 23412 × 0.678 × 10-6 × 10-3 =
11.15kW "in" 11.15kW "changed to" 11.15 × 10-3kW ", the" second 3a-3b-3c. I2R = 3 × 40542 ×
0.228 × 10-6 × 10-3 = 11.24kW "in" 11.24kW "changed to" 11.24 × 10-3kW ", and later used by the
These two values \u200b\u200bwere unified corrections;
--- Delete the contents of the original tables A.7 below "third rated voltage" and the following six lines;
--- The original I.3 (This section A.3) in the first two paragraphs of text adjust to this section A.1 foremost, delete the original I.3
Third paragraph of the text;
--- Number of original formulas were adjusted.
Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents.
This part is proposed by the China Electrical Equipment Industrial Association.
This part of the National Standardization Technical Committee transformers (SAC/TC44) centralized.
This section is drafted. Shenyang Transformer Research Institute Co., Ltd., Shun Special Electric Equipment Co., Ltd., Xinhua special Electric Co.
Ltd., Wolong Electric Group Beijing Huatai Transformer Co., Pearl Electric Co., Ltd., Baoding Tianwei Electric Company Limited
Division, Xi'an Electric Transformer Co., Ltd., TBEA Shenyang Transformer Group Co., Ltd., TBEA Hengyang Transformer Co., Ltd.,
Xiangtan China Special Transformer Co., Ltd., Guangzhou Zhiguang Electric Co., Ltd., the new features can Transformer Co., Ltd., Jiangsu, Guangzhou Prosperous
Electric Co., Ltd., Shenyang Transformer Manufacturing Co., Ltd. and the United States, Wujiang Transformer Co., Ltd., Guangdong Julong Electric Power Equipment Co., Ltd ..
The main drafters of this section. Zhang Xianzhong, easy Kira, Jialing, Hebao Zhen, Caiding Guo, Hu Zhenzhong, Wang Ning, the Sun Hongjun, Hu Jian,
Zhang Ximing, Long Tsinghua Guoyue Guang, Fan Jianping, Sun Tao, Lin Canhua, Origins of Chan.
This part of the standard replaces the previous editions are.
--- GB/T 18494.1-2001.
Converter transformers
Part 1. Transformers for industrial use
1 Scope
This section GB/T 18494 specifies the technical requirements for the assembly of power transformers and reactors in the semiconductor converter device, provided
Design and test, this section does not apply to conventional AC power distribution transformers.
This part of the power converter is suitable for any size of typical applications are. electrolysis thyristor rectifier diode rectifier electrolysis, large
Driving power thyristor rectifier, thyristor rectifier waste furnace and a variable speed drive inverter with diode rectifier. This section is also applicable
For the buck regulator or autotransformer regulator unit. Highest voltage for equipment not exceeding valve winding 40.5kV.
This section does not apply to HVDC transformers.
While complete sets of equipment standards converter (such as GB/T 3859 or other standards related to particular application) may include converter transformers,
A variety of performance assurance and testing requirements (such as insulation, loss) auxiliary transformers and reactors, including the entire device, but this part is still appropriate
As for the converter equipment of the transformer itself, guarantee performance and test requirements.
Guaranteed value, run and type testing under this Part, both suitable for use as a component in the converter transformer equipment, but also for
Converter equipment used transformers ordered separately. Any additional or special value to ensure verification should be especially in the transformer order contract
Instructions.
This section refers to the converter transformer may be a liquid immersion type may also be dry. In addition to meeting the provisions of this section, for immersion variant
Pressure is also in line with GB 1094 series of standards; for dry-type transformers shall comply with GB 1094.11.
NOTE. You may use the standard design of distribution transformers in some conventional converter devices in use may need to reduce capacity. This relates to the design of specialized
It means the technical requirements of this section without special provisions. However, the formula can be given from the press as well as 6.2 GB/T 13499 to calculate conventional transformer
Reducing the value of the capacity.
This section applies to a tank with one or more of the body of [voltage regulator (auto) transformers and one (or two) rectifier transformer]
Transformer. Also applies to a band (or more) saturable reactor and (or) phase transformer transformer.
For other combinations not listed above, to identify and measure the total loss for an agreed upon by both parties.
This section applies to the Y junction, D knots and other phase-shifting transformer coupling (such as Z junction, join the Yanbian triangle, polygon links, etc.). shift
Phase windings may be provided or regulating transformer rectifier transformer.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB 1094.1 Power transformers - Part 1. General (GB 1094.1-2013, IEC 60076-1.2011, MOD)
GB 1094.2 Power transformers - Part 2. temperature rise of liquid-immersed transformers (GB 1094.2-2013, IEC 60076-2.2011,
MOD)
GB 1094.3 Power transformers Part 3. Insulation levels, dielectric tests and external insulation air gap (GB 1094.3-2003,
eqv IEC 60076-3.2000)
GB/T 1094.6 Power transformers - Part 6. Reactors (GB/T 1094.6-2011, IEC 60076-6.2007, MOD)
Part 11 GB 1094.11 Power transformers. dry-type transformers (GB 1094.11-2007, IEC 60076-11.2004, MOD)
GB/T 2900.15-1997 Electrotechnical terminology transformers, transformers, regulators and reactors [neqIEC 60050 (421).1990,
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 18494.1-2014_English be delivered?Answer: Upon your order, we will start to translate GB/T 18494.1-2014_English as soon as possible, and keep you informed of the progress. The lead time is typically 6 ~ 10 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 18494.1-2014_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 18494.1-2014_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. Question 5: Should I purchase the latest version GB/T 18494.1-2014?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 18494.1-2014 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.
|