2007-12-25 00:37:49 · 3 answers · asked by kumar K 1 in Science & Mathematics ➔ Engineering
You need to know three things when selecting a transformer.
1) The available incoming voltage
2) The utilization voltage of the load equipment
3) The amperes required by the load
Item #2 x item #3 = volt-amperes (VA). This is the minimum rating (VA) of the transformer.
Item #1 ÷ item #2 determines the turns-ratio of the transformer. This ensures that you will have the proper voltage supplied to your equipment.
These are just the basics. Please update your question with additional details or drop me an e-mail with specifics about the equipment you're dealing with.
2007-12-25 13:16:02 · answer #1 · answered by Thomas C 6 · 1⤊ 0⤋
A device should have it's voltage specified by the manufacturer. Or, you'd have to understand in detail how the device works and be able to figure it out.
It's tough to answer a general question like this. If you have something specific in mind, you could probably get a better answer if you gave details and re-asked the question.
2007-12-25 19:14:01 · answer #2 · answered by genericman1998 5 · 0⤊ 0⤋
Try the IEEE website, or ask a manufacturer or vendor for help [better to ask a couple of mfgrs or vendors].
2007-12-25 14:14:01 · answer #3 · answered by redbeardthegiant 7 · 0⤊ 0⤋