Enter the transformer output power (watts) and the total power losses (watts) into the calculator to determine the Transformer Efficiency.
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Transformer Efficiency Formula
The following formula is used to calculate the Transformer Efficiency.
Et = Po / (Po + PL) *100
- Where Et is the Transformer Efficiency (%)
- Po is the transformer output power (watts)
- PL is the total power losses (watts)
How to Calculate Transformer Efficiency?
The following two example problems outline how to calculate the Transformer Efficiency.
Example Problem #1:
- First, determine the transformer output power (watts). In this example, the transformer output power (watts) is given as 50.
- Next, determine the total power losses (watts). For this problem, the total power losses (watts) is given as 5.
- Finally, calculate the Transformer Efficiency using the equation above:
Et = Po / (Po + PL) *100
Inserting the values from above and solving the equation:
Et = 50 / (50 + 5) *100 = 90.909 (%)
Example Problem #2:
Using the same process as above, first define the variables required by the formula. In this case, these values are:
transformer output power (watts) = 60
total power losses (watts) = 7
Entering these values yields:
Et = 60 / (60 + 7) *100 = 89.55 (%)
