Ecodesign Loss Values for 36 kV Oil-Immersed Transformers up to 3150 kVA

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Ecodesign Loss Requirements (IEC Reference)

Requirements applicable to three-phase liquid-immersed medium power transformers with rated power ≤ 3150 kVA, with one winding Um ≤ 36 kV and the other winding Um ≤ 1.1 kV, according to Ecodesign Tier 1 and Tier 2 limits.

Rated Power
(kVA)		 Ecodesign Tier 1
(from 1 July 2015)		 Ecodesign Tier 2
(from 1 July 2021)
Max Load Losses
Pk (W)		 Max No-Load Losses
Po (W)		 Max Load Losses
Pk (W)		 Max No-Load Losses
Po (W)
≤ 25 990 80 660 72
50 1210 103 825 93
100 1925 166 1375 149
160 2585 241 1925 217
250 3575 345 2585 310
315 4290 414 3080 372
400 5060 494 3575 445
500 6050 586 4290 527
630 7150 690 5060 621
800 9240 747 6600 672
1000 11550 885 8360 796
1250 12100 1092 10450 983
1600 15400 1380 13200 1242
2000 19800 1667 16500 1500
2500 24200 2012 20350 1811
3150 30250 2530 25300 2277
Note: Values shown represent maximum permissible losses according to Ecodesign regulations. Final guaranteed losses depend on voltage ratio, frequency, cooling method and design and are confirmed during quotation and testing.

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Transformer Manufacturer

DATSAN Transformer manufactures oil-immersed distribution and power transformers for industrial, utility, and infrastructure projects worldwide.

Established in 1992, DATSAN combines over 30 years of engineering experience with modern manufacturing and testing capabilities. Our products are designed in accordance with IEC 60076, ANSI C57 and relevant international standards, with Ecodesign-compliant options available upon request.

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Datsan Elk. İnş. San. ve Tic. Ltd. Şti.

Address: Kızıltepe Mardin Karayolu 6.km
Kızıltepe, 47400 Mardin / TÜRKİYE

Phone : +90 (482) 215 3188
Fax : +90 (482) 215 1199