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Energy-efficient distribution transformers

Energy-efficient distribution transformers. Case study. Introduction :. Distribution transformers for industrial customers Case study of a 1600 kVA energy-efficient transformer. Ward Berghmans Design Manager Distribution Transformers

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Energy-efficient distribution transformers

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  1. Energy-efficient distribution transformers Case study

  2. Introduction : • Distribution transformers for industrial customers • Case study of a 1600 kVA energy-efficient • transformer • Ward Berghmans Design Manager Distribution Transformers PAUWELS TRAFO Energy-efficient distribution transformers PAUWELS

  3. Topics of discussion : • The population of newly installed distribution transformers • The 1600 kVA energy-efficient transformer • Performance data comparison • Annual Energy savings • Financial benefits against purchase price • Environmental impact • Conclusion Energy-efficient distribution transformers PAUWELS

  4. 1.The population of newly installed distribution transformers: • Three market segments • Utilities (EdF, Enel, RWE,… ) • Light industry ( OEM, installers) • Heavy industry ( private, contractors) • Estimated figures for newly installed distribution transformers in Western Europe Energy-efficient distribution transformers PAUWELS

  5. 1.The population of newly installed distribution transformers: • * Estimated quantities yr 2000 (3Ø only) Energy-efficient distribution transformers PAUWELS

  6. 2. The 1600 kVA energy-efficient transformer: • 2.1 Performance data comparison • 20 kV / 400 V - 50 Hz – avg loading 70% • Dimensions : +40 mm width / -200 mm length + 125 mm in height Energy-efficient distribution transformers PAUWELS

  7. 2.2 Annual savings The annual kWh consumption is obtained by multiplying the watt rating by 8,76 = 11475 kWh annual savings = 1033 € at 0.09 € / kWh Lifetime saving @ 25 years => 287,5 MWh => 25825 € Remark : 30 or 40 years in service is not uncommon Energy-efficient distribution transformers PAUWELS

  8. => within 12 to 15 % of the total life time of a distribution transformer 2.3 Financial benefits against purchase price Price premium : + 3610 € Payback period : 3610 € / 1033 € /yr = 3.5 years Energy-efficient distribution transformers PAUWELS

  9. 2.4 Environmental impact Efficient use of energy decreases the greenhouse gas emissions without sacrificing power output. CO2 emissions @ 0.4 kg CO2 / kWh CO2 reduction = 120 Mt Energy-efficient distribution transformers PAUWELS

  10. 3. Conclusion: Today the technology is available to reduce in a substantial way the losses of transformers. This loss reduction would contribute in the overall green house cut-back programs This case study was based upon the 1600 kVA transformer installed in July 1998 at the Allied Signal production facility at Waterford (Eire) Energy-efficient distribution transformers PAUWELS

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