Overloading of Transformer

sub merged arc furnace 9mva transformer to be overloaded.....max prim amps is 519.how much it can be overloaded, if possible...please
explain in detail
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On Sat, 15 Mar 2008 02:55:19 -0700 (PDT) snipped-for-privacy@gmail.com wrote:
| sub merged arc furnace 9mva transformer to be overloaded.....max prim | amps is 519.how much it can be overloaded, if possible...please | explain in detail
What did the manufacturer say when you asked them, as a result of the advice given to you when you previously posted this question?
Most likely, an arc furnace transformer is designed to limit the current in a short circuit situation. Or are you planning to overload the voltage?
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| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
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Are you fishing for free professional advice on the basis of more unknowns than knowns? Hire a consultant.
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Don Kelly snipped-for-privacy@shawcross.ca
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The damaging culprit in overloading a transformer is the heat. Generally, they are built to withstand a 25% current overload. Install cooling measures for added protection. evo
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| |>>transformer to be overloaded.....how much it can be overloaded.... | | The damaging culprit in overloading a transformer is the heat. | Generally, they are built to withstand a 25% current overload.
For how long? A few hours? A couple days? Until the transformer explodes?
| Install cooling measures for added protection. evo
How about a refrigeration system?
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| Phil Howard KA9WGN (ka9wgn.ham.org) / Do not send to the address below |
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No - they are not....
Please refer to loading guides for your answer Euclid
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