go to the Power transformers product page Anonymous asked on Sep 21st, 2014 in Power transformers

what about efficiency of your power transformers? What are the considerabale losses in the same?

Abhishek Rai, Marketing and Sales Manager

ABB's answer

In general increased efficiency can be measured by knowing the real cost of a transformer.
For the owner this is the sum of the initial purchase price (first cost) plus the cost of running it for its useful life.
Purchase price = Cost of Losses (No Load Losses + Load Losses + Aux Losses) + Commissioning cost + Maintenance cost + Emissions cost (depending on regulations)
Total Ownership Cost (TOC) method takes future operating cost of a unit over its lifetime brought back into net present value, and added to its purchase price.
TOC = Price + [A ($/W) x No-load Loss (W)] + [B ($/W) x Load Loss (W)]
Optimizing a design using A & B factors results in the most cost-effective design over the transformer life cycle, based on customers’ cost of energy and load factors:
• Cost of capital,
• Cost of energy
• Cost of additional capacity – generation, transmission & distribution
• Transformer operating hours per year
• Loading characteristics – peak & load factor

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  • Abhishek Rai

    Abhishek Rai

    Marketing and Sales Manager

    Large and medium power transformers

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