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ehof
Joined: 27 Mar 2006
Posts: 2
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 Posted: Mon Mar 27, 2006 2:01 pm Post subject: A question of Amps... |
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I have a 12 volt, 5 amp portable air compressor. What would happen if I ran 120 volt home current through a 12-volt, 3 amp transformer, then out to the compressor? In other words, would the transformer be over-taxed, or would the air compressor be under-powered (and will either be destroyed)?
Any insight would be of great help!
Thanks!
E. |
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vince knight
Moderator
Joined: 04 Mar 2004
Posts: 1343
Location: Essex/East London
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| Posted: Mon Mar 27, 2006 5:44 pm Post subject: |
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The transformer will not cope and if it has no protection, it will melt down!!!
Vince |
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ehof
Joined: 27 Mar 2006
Posts: 2
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| Posted: Tue Mar 28, 2006 3:27 pm Post subject: Thanks Vince |
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| I think I may have used the word "transformer" erroneously. The 120v AC home current is stepped down to 12v / 3amp DC, if that makes any difference. I guess that makes it more of a power supply than a transformer.... |
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vince knight
Moderator
Joined: 04 Mar 2004
Posts: 1343
Location: Essex/East London
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| Posted: Tue Mar 28, 2006 7:17 pm Post subject: |
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It would still need to handle a current of 5amp.
It may work in short bursts, but not for long.
Vince |
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