Temperature rise in copper magnet wire
Temperature rise in copper magnet wire
(OP)
Does anyone know how to calculate how fast a copper wound coil will heat up and to what temperature it will end up at once voltage is aplied to it?
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Temperature rise in copper magnet wire
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RE: Temperature rise in copper magnet wire
There may be some empirical methods for estimating this - motor and transformer designers must deal with similar problems fairly often.
RE: Temperature rise in copper magnet wire
The current will decrease as the coil heats up due to the increased resistance of the copper with temperature.
The final temperature, as dpc says, is tough to determine. I often use the natural convection heat loss in free air as a rough "guesstamate."
The time to temperature is then approximately five times the intercept time between the temperature rise line and the final temperature line.