Connect with us

transformer amperage

Discussion in 'Electronics Homework Help' started by J.E, Apr 1, 2011.

Scroll to continue with content
  1. J.E


    Apr 1, 2011
    how do you calculate primary amps to secondary amps for a transformer? Is there a standard ratio for all transformers?:rolleyes:
  2. duke37


    Jan 9, 2011
    Transformers are designed for a particular purpose. If the voltage is transformed down by a factor of 2, then you would expect the permitted output current to be increased by a factor of about 2. With multiple secondaries, the permitted current in each secondary will depend on the wire diameter (resistance).
  3. lexroxas


    Apr 15, 2011
    The primary and secondary currents depend on the turns ratio of the transformer. The turns ratio is N1/N2. N1 is the number of turns of the primary windings and N2 is the number of turns of the secondary windings. The current to turns ratio relationship is given by the formula: N1/N2 = I2/I1. I2 is the secondary current and I1 is the primary current. Also, the voltage to current relationship is given by the formula: V1/V2=I2/I1. V1 is the primary voltage and V2 is the secondary voltage.
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Similar Threads
There are no similar threads yet.
Electronics Point Logo
Continue to site
Quote of the day