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Devlopment of 270 VDC
Thanks for the information everyone. I was also wondering where the decision to use 270VDC came from. Sure the current goes down as you increase voltage, but why not use the rectified 3-phase AC voltage directly? Then you wouldn't need a transformer/rectifier (you could just use a...- otto452
- Post #6
- Forum: Aircraft engineering
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Devlopment of 270 VDC
Thanks for the information IRstuff and FieldTeam, but I'm still struggling to see how the three phase rectified voltage from 115/400 VAC results in 270 VDC. The RMS value of 115 VAC is 115*.707= ~81 VDC. How do three phases of 81VDC lead to 270VDC? I know I'm missing something, but the...- otto452
- Post #4
- Forum: Aircraft engineering
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Devlopment of 270 VDC
In working with military aircraft power systems, I've come across 270 VDC systems before. Where does the decision to go with 270 VDC come from? I had heard that it was derived from using 3 phase 400 hz 115/200 VAC power but I'm not sure how do the conversion to get 270 VDC.- otto452
- Thread
- Replies: 10
- Forum: Aircraft engineering
