3
\$\begingroup\$

Suppose I have a transformer designed to convert 220 volts into 5 volts and when it works in this mode being 95% loaded its efficiency is 97%. Now I connect the secondary winding to a 5 volts power source and connect appropriate 220 volts load to the primary so that the transformer converts 5 volts into 220 volts and is 95% loaded.

How will the transformer efficiency change? Will it remain 97%?

\$\endgroup\$
  • \$\begingroup\$ Where did you find a 95% efficient transformer? \$\endgroup\$ – Bryan Boettcher Nov 19 '12 at 18:28
3
\$\begingroup\$

Efficiency depends on frequency, current and source & load impedance. If you use the same on each winding, it is reversible and similar efficiency can be expected.

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.