**About Transformer Efficiency Calculator (Formula)**

A Transformer Efficiency Calculator is a tool used to calculate the efficiency of a transformer. The efficiency of a transformer is a measure of how well the transformer is able to convert electrical power from the input side to the output side, and is expressed as a percentage. A higher efficiency indicates that less power is lost as heat and more power is delivered to the load.

**The formula for calculating the efficiency of a transformer is:**

**Efficiency = (Output Power / (Output Power + Total Losses)) x 100%**

where Output Power is the power delivered to the load, and Total Losses are the losses in the transformer due to resistance in the windings, core losses, and other factors.

To use the Transformer Efficiency Calculator, simply input the transformer output power and total power losses, and click the “Calculate” button. The calculator will use the above formula to calculate the efficiency of the transformer and display the result as a percentage.

The Transformer Efficiency Calculator is a useful tool for engineers, electricians, and technicians involved in the design, installation, and maintenance of electrical systems. By accurately calculating the efficiency of a transformer, users can ensure that their electrical systems are running efficiently and effectively, and can identify areas where improvements can be made to reduce energy waste and costs.