transformer

[Gaffen99]

Just wondering, what would happen to a 4160/208 transformer if you apply 13kv to its line side? I know it's a dumb question, but some of you are very smart with these things. What I am wondering is the end result, would it burn, explode, etc.? Or would the windings actually withstand the higher voltage?

 

[GoldDigger]

Just wondering, what would happen to a 4160/208 transformer if you apply 13kv to its line side? I know it's a dumb question, but some of you are very smart with these things. What I am wondering is the end result, would it burn, explode, etc.? Or would the windings actually withstand the higher voltage?

The transformer core would saturate at the higher current level, and at that point even if the winding insulation withstood the voltage, the current would rise to orders of magnitude greater than the normal idling current until the primary OCPD or the transformer blew. The good news is that the secondary voltage might not be proportionally higher than with the proper input.

 

[iwire]

Maybe this .

 

[mbrooke]

The transformer core would saturate at the higher current level, and at that point even if the winding insulation withstood the voltage, the current would rise to orders of magnitude greater than the normal idling current until the primary OCPD or the transformer blew. The good news is that the secondary voltage might not be proportionally higher than with the proper input.

Kind of like with a CWA/CWI lighting ballast? Higher voltages cause heat and saturation that doesn't necessarily mean higher voltage (transfer) in to the secondary?

 

[Gaffen99]

Thanks, and nice link IWire.