Timeline for Short circuit current through multi-winding transformer
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 28, 2014 at 13:00 | comment | added | Stewie Griffin | @Li-aungYip Yes, you're spot on. It's feeding an ABB ACS5000 drive. | |
| Apr 28, 2014 at 12:57 | comment | added | Li-aung Yip | I'm aware of the way it works. The more phase-displaced voltage waveforms you can get, the more 'pulses' you can have on your VSD. Normal three-phase supply gets you six pulses. Three-winding transformer (two phase-displaced three phase supplies) gets you 12 pulses. I imagine you're using a 36-pulse VSD. Am I warm? :P | |
| Apr 28, 2014 at 11:02 | comment | added | Stewie Griffin | @Li-aungYip, it's feeding a large VSD. The main reason why there are many windings is to eliminate harmonics. I'm afraid I don't have time to go into details and find proper references right now (I'm not even sure I can find any publicly available documentation). There are however some references on this for three-winding transformer, it's much the same, only on a larger scale. I wish I could share more... | |
| Apr 28, 2014 at 9:58 | comment | added | Li-aung Yip | I am also really, really curious as to what this transformer is even used for. | |
| Apr 15, 2014 at 5:16 | history | tweeted | twitter.com/#!/StackElectronix/status/455937783660806144 | ||
| Apr 15, 2014 at 2:00 | answer | added | Li-aung Yip | timeline score: 4 | |
| Apr 15, 2014 at 1:22 | comment | added | Li-aung Yip | Can you post the transformer's full nameplate information (i.e. photo of the nameplate) or the impedance data from its factory testing records? | |
| Apr 14, 2014 at 17:14 | answer | added | user38637 | timeline score: 2 | |
| Apr 14, 2014 at 16:59 | history | asked | Stewie Griffin | CC BY-SA 3.0 |