Brian, power electrics is not a subject to learn by reading a few books. It's a craft. In order to get a licence here in Germany, you have to be an apprentice for three years and a fellow (? "Geselle" in German) for another few years. After this and only if you have delivered a master piece to the chamber and passed their master's test, you have the chance to get licenced so you are allowed to wire houses and electrical appliances in your own responsibility without supervision, and even so, any house supply must be inspected first by the local supervisiors of the power supply companies before placing in the main fuses into their sockets.
Do you think you will get all this knowledge from reading a few books? Even if you get your gadgets running somehow, do you know what gauge wires to use, how large the safety distances from high potential parts have to be, how to measure ground and insulation resistances, which safety switches to use and how to set them correctly, what thermal precautions to take in a crowded power cabinet? From here, I can't give you reading hints because I din't know the US literature. Over here, I would search for text books for professional schools. These schools teach all apprentices aside from their practical work once a week. They give them theoretical and legal information to back up their practical skills with sound knowledge. I remember using such a book when I was in my (US) high school electricity class way back in the sixties. Please don't play with your life and get yourself assistance from a specialist! Peter Blodow Brian May schrieb: > > Yes I am a beginner at power electronics. That is why I am asking the > question. I am reading what I can and asking different people before I do > anything. I am in no hurry and not planning to wire anything until I > understand what I am doing. Currently I just have the 3 phase power to the > VFD and the rest from an extension cord in the wall. It works, but I would > like to improve the design. > > I have to learn somehow and will probably ask beginner questions.... > > So far people have given me further links to read and different things to > search on google to understand better. > > > > > >> To make it clear: grounding is the up and down of electrical power >> application. Imagine only a little high resistance insulation fault in >> the primary of your local high voltage transfomer - if the secondary >> would not be grounded in some way, in this case you could easily >> experience 10 or 20 kV on your home outlet.... In case the secondary is >> ground referenced by connecting the center tap of the secondary windings >> to ground, this fault might not even be noticed! Floating potentials are >> a highly dangerous thing, never leave any circuit unreferenced to ground! >> >> Peter Blodow >> >> >> >> >> ------------------------------------------------------------------------------ RSA(R) Conference 2012 Save $700 by Nov 18 Register now http://p.sf.net/sfu/rsa-sfdev2dev1 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
