Efficiency of a transformer is maximum at

By Sukrati Saxena|Updated : June 28th, 2022

Efficiency of a transformer is maximum at copper loss = iron loss. The transformer will attain maximum efficiency when the variable copper losses become equal to the fixed iron losses. It is at this time when the losses will get the value of the original current required and thus transformer will attain maximum efficiency at this stage.

Answer: Efficiency of a transformer is maximum at copper loss = iron loss.

The transformer that has a variable load is designed to ensure maximum efficiency. This is when the full load is at about 75%. Such transformers are often referred to as distribution transformers. The total efficiency of any transformer is often defined by taking the ratio of useful output power to the input power.

Summary:

The efficiency of a transformer is maximum at copper loss = iron loss. The transformer will attain maximum efficiency when the variable copper losses become equal to the fixed iron losses.

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