Books on Calculating Transformer Loads etc...
Books on Calculating Transformer Loads etc...
(OP)
Hello,
I was wondering, I need to increase the size of a transformer/power supply in a enclosure. I am adding a 120Vac, 150Watt enclosure heater. The transformer that is there is for VFD circuit control. Its rated at 150 VA. I dont think this is big enough to handle its job along with the new fan heater. Is there a book that i can buy or some such that would help me with this. The primary would be 480 single phase with of course 120 secondary. sorry i didnt see something like this during my search. Im an electronic engineering technologies trying to learn all th EE stuff for my job. Any help would be greatly appreciated. Thank you.
I was wondering, I need to increase the size of a transformer/power supply in a enclosure. I am adding a 120Vac, 150Watt enclosure heater. The transformer that is there is for VFD circuit control. Its rated at 150 VA. I dont think this is big enough to handle its job along with the new fan heater. Is there a book that i can buy or some such that would help me with this. The primary would be 480 single phase with of course 120 secondary. sorry i didnt see something like this during my search. Im an electronic engineering technologies trying to learn all th EE stuff for my job. Any help would be greatly appreciated. Thank you.






RE: Books on Calculating Transformer Loads etc...
Why not just add another unit dedicated to the heater, with some breathing room, at least 150VA x 125% = 187.5VA? Just use a 200 or 250VA unit.
Or replace the existing unit with a 350-400VA unit, if you like.
RE: Books on Calculating Transformer Loads etc...
RE: Books on Calculating Transformer Loads etc...
RE: Books on Calculating Transformer Loads etc...
RE: Books on Calculating Transformer Loads etc...
RE: Books on Calculating Transformer Loads etc...
If this is to keep the equipment above the minimum operating temperature in the arctic, then you will definitely need the heater.
respectfully