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A question regarding a.c.

  1. Mar 19, 2012 #1
    Hi everyone,
    I have a query in my mind that what will happen when frequency of main voltage(220 V ac) increases from 50 to 60(or more) accidentally.What will be effect on output voltage(and frequency) from a step-down transformer connected next to main supply cable for power supply circuit???

    Plz plz answer my question
     
  2. jcsd
  3. Mar 19, 2012 #2

    NascentOxygen

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    Staff: Mentor

    Hi yousuf21! http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif [Broken]

    It's a good question. What do you think might happen? and why? :wink:
     
    Last edited by a moderator: May 5, 2017
  4. Mar 20, 2012 #3
    If I had some idea than why should have I ask here? Seriously I'm confused:confused:
     
    Last edited by a moderator: May 5, 2017
  5. Mar 20, 2012 #4
    Use a step-down transformer only if one side of the 220 mains is a good safe ground, and if the 220 ac plug is polarized.

    Examine the effect of the frequency change on the transformer output voltage, input inductance, reactive input current, excitation B field, and core losses.
     
  6. Mar 20, 2012 #5
    The generator set will have an AVR (automatic voltage regulator) this operates independently of the frequency so should maintain the voltage at the correct level.
     
  7. Mar 21, 2012 #6

    NascentOxygen

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    I'm thinking the situation is probably of an electrical appliance designed for 50Hz mains that OP is tempted to try operating off 60Hz mains.
     
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