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GB 24790-2009 English PDF

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GB 24790-2009: Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers
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GB 24790-2009English399 Add to Cart 3 days [Need to translate] Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers Obsolete GB 24790-2009

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Standard similar to GB 24790-2009

GB 24850   GB/T 24915   GB 24500   GB 19762   GB 20943   GB 17167   

Basic data

Standard ID GB 24790-2009 (GB24790-2009)
Description (Translated English) Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers
Sector / Industry National Standard
Classification of Chinese Standard F01
Classification of International Standard 27.010
Word Count Estimation 10,169
Date of Issue 2009-12-15
Date of Implementation 2010-07-01
Quoted Standard GB 1094.1; GB/T 2900.15; GB/T 6451
Regulation (derived from) Announcement of Newly Approved National Standards No. 15 of 2009 (total 155)
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 Chinese standard specifies the energy efficiency of power transformer limit values ??, target energy efficiency limit, evaluating values ??of energy, energy efficiency rating and test methods. This standard applies to the rated frequency of 50 Hz, the voltage rating of 35 kV ~ 220 kV, rated capacity and above 3150kV �� A three-phase oil-immersed power transformers. This standard does not apply to dry-type transformers, high impedance transformers and gas-filled transformers.

GB 24790-2009: Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers


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Minimum allowable values of energy efficiency and the energy efficiency grades for power transformers ICS 27.010 F01 National Standards of People's Republic of China Power transformer energy efficiency limit And energy efficiency rating Posted 2009-12-15 2010-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

4.3 and 4.4 of this standard are mandatory, the rest are recommended. This standard by the National Standardization Technical Committee for Energy and management proposed. This standard by the National Standardization Technical Committee for Energy and Management. This standard drafting units. China National Institute of Standardization, TBEA Shenyang Transformer Group Co., Ltd., Baoding Tianwei Electric Co. Ltd., International Copper Association (China), TBEA Xinjiang Transformer Factory Co., Ltd., State Grid Electric Power Research Institute, SUNTEN Co., Ltd., Beijing Huatai Transformer Co., Ltd., Yantai Eastern Transformer Co., Ltd. The main drafters of this standard. Zhao Yuejin, car power, Liu Dongsheng, Zhang Lingyu, Meng Jie, easy Kira, Guohui Hao, extraordinary holes, king of a hundred liters. Power transformer energy efficiency limit And energy efficiency rating

1 Scope

This standard specifies the energy efficiency of power transformer limited value, the target energy efficiency limit values, evaluating values of energy conservation, energy efficiency grades and test methods. This standard applies to the rated frequency of 50Hz, the voltage rating of 35kV ~ 220kV, rated capacity 3150kV · A and above Three-phase oil-immersed power transformers. This standard does not apply to dry-type transformers, transformers and high impedance transformer inflatable.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB 1094.1 Power transformers - Part 1. General GB/T 2900.15 Electrotechnical terminology transformers, transformers, regulators and reactors GB/T 6451 oil-immersed power transformers technical parameters and requirements

3 Terms and Definitions

GB/T 2900.15 and GB 1094.1 and established in the following terms and definitions apply to this standard. 3.1 Under specified test conditions, power transformer no-load loss and load loss maximum allowable limits. 3.2 Under specified test conditions, after a number of years specified in this standard, the implementation of the power transformer no-load loss and load loss maximum allowed Limit. NOTE. This value is the implementation of this standard will replace the Central Plains of power transformers energy efficiency limit values. 3.3 Under specified test conditions, energy-saving power transformer no-load loss and load loss of the highest value. 4. Technical Requirements 4.1 Basic requirements Technical requirements for power transformers shall comply with the provisions of GB 1094.1. Oil-immersed power transformers technical parameters and other technical requirements Shall comply with GB/T 6451's. 4.2 power transformer energy efficiency rating Power transformer energy efficiency rating is divided into three, including an energy-efficient, lowest loss. The voltage level of the power transformer no-load loss and Load loss limit should be no higher than specified in Table 1 to Table 13. 4.3 power transformer energy efficiency limit Power transformer no-load loss and load loss limit should be no higher than 13 in Tables 1 to level 3 requirements. 4.4 Power Transformers target energy efficiency limit value (T) Power transformer no-load loss and load loss limit should be no higher than specified in Table 1 to Table 13, T bar, and in the implementation of this standard should After four years beginning from the date of implementation. 4.5 Evaluation of energy-saving power transformers value Power transformer no-load loss and load loss limit should be no higher than 13 in Tables 1 to level 2 requirements.

5 Test methods

Load loss and load loss oil-immersed transformers shall be in GB 1094.1 requirements for testing. Table 135 k Vp oil-phase double-winding non-excitation regulating power transformer energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 3150 4.3 3.7 3.3 3.0 26.5 25.0 24.5 24.3 4000 5.1 4.4 3.9 3.6 31.4 29.6 29.0 28.8 5000 6.1 5.3 4.6 4.3 36.0 33.9 33.3 33.0 6300 7.4 6.4 5.6 5.2 40.3 37.9 37.2 36.8 8000 10.1 8.8 7.7 7.1 44.2 41.6 40.8 40.4 10 000 12.2 10.6 9.3 8.6 52.0 49.0 48.1 47.6 12500 14.1 12.3 10.7 10.0 61.8 58.2 57.1 56.6 16,000 17.1 14.8 12.9 12.0 75.6 71.1 69.8 69.2 20,000 20.2 17.5 15.3 14.2 91.3 85.9 84.3 83.5 25,000 23.9 20.7 18.1 16.8 107.9 101.6 99.7 98.8 31500 28.3 24.6 21.5 19.9 129.5 121.9 119.7 118.5 7.0 7.5 8.0 Table 235 k Vp oil-phase double-winding power transformer load tap energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 3150 4.6 4.0 3.5 3.2 28.4 26.7 26.2 26.0 4000 5.5 4.7 4.1 3.8 33.5 31.5 30.9 30.7 5000 6.5 5.7 5.0 4.6 39.3 37.0 36.3 35.9 6300 7.9 6.9 6.0 5.6 42.2 39.7 39.0 38.6 8000 11.1 9.6 8.4 7.8 46.6 43.9 43.1 42.7 10 000 13.0 11.3 9.9 9.2 55.2 51.9 51.0 50.5 12500 15.4 13.3 11.6 10.8 65.3 61.4 60.3 59.7 16,000 18.5 16.0 14.0 13.0 80.7 76.0 74.6 73.9 20,000 21.8 18.9 16.5 15.4 95.0 89.4 87.8 87.0 7.0 7.5 8.0 Table 366 k Vp oil-phase double-winding non-excitation regulating power transformer energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 3150 5.7 5.0 4.4 4.1 26.5 25.0 24.5 24.3 4000 6.8 5.9 5.1 4.8 31.4 29.6 29.0 28.8 5000 8.1 7.0 6.1 5.7 35.4 33.3 32.7 32.4 6300 10.3 9.0 7.8 7.3 39.3 37.0 36.3 35.9 8000 12.6 10.9 9.5 8.9 46.6 43.9 43.0 42.6 10000 14.8 12.9 11.2 10.4 55.0 51.7 50.8 50.3 12500 17.5 15.2 13.3 12.3 65.2 61.4 60.3 59.7 16,000 21.1 18.3 16.0 14.8 80.2 75.5 74.1 73.4 20,000 24.7 21.4 18.7 17.4 97.2 91.5 89.8 88.9 25,000 29.2 25.3 22.1 20.5 114.8 108.1 106.1 105.1 31500 34.5 30.0 26.2 24.3 138.4 130.2 127.8 126.6 40,000 41.3 35.8 31.2 29.0 162.3 152.8 150.0 148.6 50000 49.3 42.8 37.3 34.7 201.1 189.3 185.8 184.1 63000 58.3 50.6 44.1 41.0 242.3 228.1 223.9 221.8 8.0 9.0 Table 466 k Vp oil-phase double-winding power transformer load tap energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 6300 11.2 9.8 8.5 7.9 39.3 37.0 36.3 35.9 8000 13.5 11.7 10.2 9.5 46.6 43.9 43.0 42.6 10000 15.9 13.8 12.1 11.2 55.0 51.7 50.8 50.3 12500 18.9 16.4 14.3 13.3 65.2 61.4 60.3 59.7 16,000 22.7 19.7 17.2 15.9 80.2 75.5 74.1 73.4 20,000 26.9 23.4 20.4 18.9 97.2 91.5 89.8 88.9 25,000 31.8 27.6 24.1 22.4 114.8 108.1 106.1 105.1 31500 37.8 32.8 28.6 26.6 138.4 130.2 127.8 126.5 40,000 45.2 39.2 34.2 31.8 162.3 152.8 150.0 148.6 50000 53.3 46.3 40.4 37.5 201.1 189.3 185.8 184.1 63000 63.0 54.7 47.7 44.3 242.3 228.1 223.9 221.8 9.0 Table 5110 k Vp oil-phase double-winding non-excitation regulating power transformer energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 6300 10.5 9.1 7.9 7.4 39.3 37.0 36.3 35.9 8000 12.6 10.9 9.5 8.9 49.1 46.2 45.4 44.9 10000 14.8 12.9 11.2 10.4 57.8 54.4 53.4 52.9 12500 17.5 15.2 13.3 12.3 68.7 64.7 63.5 62.9 16,000 21.1 18.3 16.0 14.8 84.0 79.0 77.6 76.8 20,000 24.7 21.4 18.7 17.4 101.4 95.5 93.7 92.8 25,000 29.2 25.3 22.1 20.5 120.0 112.9 110.8 109.8 31500 34.5 30.0 26.2 24.3 145.0 136.5 134.0 132.7 40,000 41.3 35.8 31.2 29.0 170.1 160.1 157.1 155.6 50000 49.3 42.8 37.3 34.7 211.5 199.1 195.4 193.6 63000 58.3 50.6 44.1 41.0 255.1 240.1 235.7 233.5 75,000 66.1 57.4 50.1 46.5 303.1 285.3 280.0 277.3 90000 76.2 66.1 57.7 53.6 348.8 328.4 322.3 319.2 120 000 95.0 82.5 71.9 66.8 432.8 407.4 399.8 396.0 150,000 112.3 97.4 85.0 78.9 514.5 484.3 475.3 470.9 180 000 126.0 109.4 95.4 88.6 580.0 545.9 535.8 530.7 10.5 12 to 14 Table 6110 k Vp oil-phase double-winding low voltage of 35 k Vp non-excitation regulating power transformer energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 6300 11.2 9.8 8.5 7.9 42.5 40.1 39.4 39.0 8000 13.5 11.7 10.2 9.5 51.3 48.3 47.4 47.0 10000 15.7 13.6 11.9 11.1 60.0 56.5 55.5 55.0 12500 18.4 16.0 13.9 13.0 72.0 67.8 66.5 65.9 16,000 22.0 19.0 16.7 15.5 88.3 83.2 81.7 80.9 20,000 26.0 22.6 19.8 18.3 107.9 101.7 99.8 98.8 25,000 30.7 26.7 23.2 21.6 126.5 119.1 116.8 115.7 31500 36.3 31.6 27.5 25.6 152.6 143.7 141.0 139.7 40,000 43.2 37.5 32.8 30.4 178.8 168.3 165.2 163.6 50000 51.8 45.0 39.3 36.4 222.4 209.3 205.5 203.5 63000 61.2 53.1 46.4 43.0 267.1 251.5 246.8 244.5 10.5 Table 7110 k Vp oil-phase three-winding non-excitation regulating transformer energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW Short circuit impedance T 2 Level 3 Level 1 Level 3 T 2 1 Buck-Boost 6300 12.6 10.9 9.5 8.9 51.3 48.3 47.4 46.9 8000 15.0 13.0 11.3 10.5 61.1 57.5 56.4 55.9 10000 17.7 15.4 13.4 12.5 72.0 67.8 66.5 65.9 12500 20.6 17.9 15.6 14.5 85.1 80.1 78.6 77.8 16,000 25.1 21.8 19.0 17.7 103.6 97.5 95.7 94.8 20,000 29.6 25.7 22.4 20.8 122.1 114.9 112.8 111.8 25,000 34.5 30.0 26.2 24.3 145.0 136.5 134.0 132.7 31500 41.3 35.8 31.2 29.0 171.2 161.1 158.1 156.6 40,000 48.9 42.4 37.0 34.4 206.0 193.9 190.4 188.6 50000 58.3 50.6 44.1 41.0 245.3 230.9 226.6 224.5 63000 69.0 59.9 52.3 48.5 294.3 277.1 271.9 269.4 High - medium 17.5 ~ 18.5 High - Low 10.5 Medium - low 6.5 High - medium 10.5 High - Low 17.5 ~ 18.5 Medium - low 6.5 Table 8110 k Vp oil-phase double-winding power transformer load tap energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 6300 11.2 9.8 8.5 7.9 39.3 37.0 36.3 35.9 8000 13.5 11.7 10.2 9.5 49.1 46.2 45.4 44.9 10000 15.9 13.8 12.1 11.2 57.8 54.4 53.4 52.9 12500 18.9 16.4 14.3 13.3 68.7 64.7 63.5 62.9 16,000 22.7 19.7 17.2 15.9 84.0 79.0 77.6 76.8 20,000 26.9 23.4 20.4 18.9 101.4 95.5 93.7 92.8 25,000 31.8 27.6 24.1 22.4 120.0 112.9 110.8 109.8 31500 37.9 32.9 28.7 26.7 145.0 136.5 134.0 132.7 40,000 45.3 39.3 34.3 31.9 170.1 160.1 157.1 155.6 50000 53.6 46.5 40.6 37.7 211.5 199.1 195.4 193.6 63000 63.7 55.2 48.2 44.8 255.1 240.1 235.7 233.5 10.5 Table 9110 k Vp oil-phase three-winding power transformer load tap energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 6300 13.5 11.7 10.2 9.5 51.3 48.3 47.4 46.9 8000 16.2 14.0 12.2 11.4 61.1 57.5 56.4 55.9 10000 19.2 16.7 14.5 13.5 72.0 67.8 66.5 65.9 12500 22.7 19.7 17.2 15.9 85.1 80.1 78.6 77.8 16,000 27.1 23.6 20.6 19.1 103.6 97.5 95.7 94.8 20,000 32.1 27.8 24.3 22.6 122.1 114.9 112.8 111.8 25,000 37.9 32.9 28.7 26.7 145.0 136.5 134.0 132.7 31500 45.1 39.1 34.1 31.7 171.2 161.1 158.1 156.6 40,000 54.0 46.9 40.9 38.0 206.0 193.9 190.4 188.6 50000 63.8 55.3 48.3 44.8 245.3 230.9 226.6 224.5 63000 75.9 65.8 57.4 53.3 294.3 277.1 271.9 269.4 High - medium 10.5 High - Low 17.5 ~ 18.5 Medium - low 6.5 Table 10 220 k Vp oil-phase double-winding non-excitation regulating power transformer energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 31500 39.2 34.1 29.7 27.6 147.2 138.5 136.0 134.7 40,000 46.0 39.9 34.8 32.3 171.2 161.1 158.1 156.6 50000 54.9 47.7 41.6 38.6 206.0 194.0 190.4 188.6 63000 65.0 56.4 49.2 45.7 239.8 225.8 221.6 219.5 75,000 75.1 65.2 56.9 52.8 272.5 256.5 251.8 249.4 90000 86.3 74.9 65.3 60.7 314.0 295.5 290.1 287.3 120 000 105.3 91.4 79.7 74.1 376.1 354.0 347.5 344.2 150,000 125.5 108.9 95.0 88.2 441.5 415.6 407.9 404.0 160 000 131.1 113.8 99.3 92.2 463.3 436.1 428.0 424.0 180 000 143.4 124.5 108.6 100.8 500.3 471.0 462.2 457.9 240 000 179.2 155.6 135.7 126.0 618.1 581.8 571.0 565.6 300,000 211.7 183.7 160.3 148.9 735.8 692.6 679.8 673.4 360 000 243.1 211.0 184.1 170.9 843.7 794.2 779.5 772.1 370,000 247.6 214.8 187.4 174.1 861.1 810.6 795.6 788.1 400,000 262.1 227.5 198.5 184.3 912.4 858.8 842.9 834.9 420 000 271.1 235.3 205.3 190.6 946.2 890.6 874.1 865.9 12 to 14 Table 11 220 k Vp oil-phase three-winding non-excitation regulating power transformer energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW Short circuit impedance T 2 Level 3 Level 1 Level 3 T 2 1 Buck-Boost 31500 44.8 38.9 34.0 31.5 176.6 166.2 163.2 161.6 40,000 53.8 46.7 40.7 37.8 206.0 193.9 190.4 188.6 50000 62.8 54.5 47.5 44.1 245.3 230.9 226.6 224.5 63000 74.0 64.2 56.0 52.0 284.5 267.8 262.9 260.4 90000 96.4 83.6 73.0 67.8 382.6 360.2 353.5 350.2 120 000 118.8 103.1 89.9 83.5 470.9 443.3 435.1 431.0 150 000 140.0 121.5 106.0 98.5 559.2 526.4 516.6 511.8 180 000 159.1 138.1 120.5 111.9 637.7 600.2 589.1 583.6 240 000 197.2 171.1 149.3 138.6 784.8 738.8 725.1 718.2 300,000 233.0 202.2 176.4 163.8 926.5 872.1 856.0 847.9 High - medium 22 to 24 High - Low 12 to 14 Medium - low 7-9 High - medium 12 to 14 High - Low 22 to 24 Medium - low 7-9 Table 12 220 k Vp oil-phase double-winding power transformer load tap energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 40,000 150,000 150,000 Low pressure 66, 69kV 42.6 37.0 32.3 30.0 147.2 138.5 136.0 134.7 50.4 43.8 38.2 35.5 171.2 161.1 158.1 156.6 60.5 52.5 45.8 42.6 206.0 193.9 190.4 188.6 70.6 61.3 53.5 49.6 239.8 225.8 221.6 219.5 89.6 77.8 67.9 63.0 314.0 295.5 290.1 287.3 110.9 96.3 84.0 78.0 377.2 355.0 348.5 345.2 130.0 112.8 98.4 91.4 441.5 415.6 407.9 404.0 151.2 131.3 114.5 106.3 510.2 480.2 471.3 466.9 114.3 99.2 86.5 387.0 397.6 364.3 357.5 354.2 134.4 116.7 101.8 452.4 464.8 425.8 417.9 414.0 156.8 136.1 118.8 517.8 532.0 487.4 478.4 473.8 12 to 14 Book GB 24790-2009 Table 13 220 k Vp oil-phase three-winding power transformer load tap energy efficiency rating Rated Capacity kV · A Load loss kW Load loss (75 ℃) kW T 2 Level 3 Level 1 Level 3 T 2 1 Short circuit impedance 31500 49.3 42.8 37.3 34.7 176.6 166.2 163.2 161.6 40,000 58.3 50.6 44.1 41.0 206.0 193.9 190.4 188.6 50000 67.2 58.4 50.9 47.3 245.3 230.9 226.6 224.5 63000 78.4 68.1 59.4 55.2 284.5 267.8 262.9 260.4 90000 89.5 78.1 72.5 103.1 382.6 360.2 353.5 350.2 120 000 128.8 111.8 97.6 90.6 470.9 443.3 435.1 431.0 150,000 151.2 131.3 114.5 106.3 559.2 526.4 516.6 511.8 180 000 174.8 151.7 132.3 122.9 686.7 646.4 634.4 628.5 240 000 216.2 187.6 163.7 152.0 850.2 800.3 785.5 778.1 High - medium 12 to 14 High - Low 22 to 24 Medium - low 7-9

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