Electrical Test Question
Posted 28 February 2011 - 03:04 PM
A machine has two ovens. A bottom oven and a top oven. The top oven is directly over the bottom oven. Media passes between the two ovens to be heated on both sides simultaneously. The ovens are heated by ceramic tiles at 750 watts, 3 phase power, 360 volts ( We took it that the machine is European ? ). Each oven tile is identical, and is rated at 750 watts, and there are 360 of them in the lower oven, and 360 of them in the top oven. How many amps will the top and bottom oven pull ?
I answered 1500 amps. Is that right ?
Posted 28 February 2011 - 04:11 PM
Posted 02 March 2011 - 01:33 AM
At least you put it out there, didn't see anybody else even venture a guess. Thanks !
Posted 02 March 2011 - 04:33 PM
So in the end it was
A = ((((( 360 + 360 ) * 750 ) / 360 ) / 1.73 ) * 1.2 )
A = ~1040
It's been a long time since I needed that many parentheses.
Posted 18 March 2011 - 01:42 PM
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