 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Electronics : Candidate transformers for Tverter
| Author | Message | ||||
LadyN Guru  Joined: 26/01/2019 Location: United StatesPosts: 408 |
Candidate transformers for Tverter (TonyInverter) Warpspeed, you should really christen the Tverter or TonyInverter or WarpInverter or Warpverter or ... Please, it will makes things so easy. I am sure naming OzInverter was they key to its success! Everything was just a cakewalk from there. OK, so for people COMPLETELY unskilled in building transformers from scratch for the Tverter, we need to start somewhere. This thread will capture the requirements for good candidate transformers for Tverter To start off: 1. Will toroidal cores do just fine? 2. Why choose an EI over a toroidal core? 3. What changes in design would we have to do to the Tverter if we chose a toroidal core for the guts of the Tverter? 4. What are some good resources to get started with sourcing, building and testing transformers for Tverter? |
||||
| JohnS Guru Joined: 18/11/2011 Location: United KingdomPosts: 3802 |
bump I'll try: 1. yes 2. EI are easier to wind but nothing like as suitable for the higher power parts as toroids Sorry if I got anything wrong. John |
||||
Clockmanfr Guru Joined: 23/10/2015 Location: FrancePosts: 429 |
'WarpStepInverter' 2019-04-07_021303_WarpstepInverter1to5.pdf 2019-04-07_021323_WarpStepInverter6.pdf Everything is possible, just give me time. 3 HughP's 3.7m Wind T's (14 years). 5kW PV on 3 Trackers, (10 yrs). 21kW PV AC coupled SH GTI's. OzInverter created Grid. 1300ah 48v. |
||||
| Warpspeed Guru Joined: 09/08/2007 Location: AustraliaPosts: 4406 |
Exactly as John says, toroidal cores are better electrically, but require vastly more time and physical effort to wind. My situation is that I had nothing here at all that I could use, either for the large toroidal cores, or wire of appropriate gauges. And I am becoming increasingly lazy in my old age. And I also have a lifelong friend that runs a transformer winding business nearby. So my solution was to get him to do the whole thing for me, although it was still a rather expensive exercise just for the cost of the materials. Cheers, Tony. |
||||
| LadyN Guru Joined: 26/01/2019 Location: United StatesPosts: 408 |
Are there some comprehensive (toroid) transformer winding videos or guides to follow? I have never done this before and am scared with the unknowns. |
||||
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678 |
Here is something from Oz. Cheers Caveman Mark Off grid eastern Melb |
||||
| LadyN Guru Joined: 26/01/2019 Location: United StatesPosts: 408 |
YES MARK! YES! Looks great! I will be studying this all week! WOOOHOO! Can you believe it, I'm on that forum and have been going through the many pages but never found this post THANK YOU! |
||||
| Warpspeed Guru Joined: 09/08/2007 Location: AustraliaPosts: 4406 |
I missed that one too, its an absolute ripper............. One technique that has been modified since then, is the now preferred method to straighten the wire. Every time copper wire is handled it tends to work harden, so the fewer times it is bent and unbent the easier it becomes to work with. The multiple roller straightening technique certainly works, but a more gentle way is to just stretch the wire. Anchor one end to an immovable object, and just stretch the wire. Perhaps about six to eight inches for a fifty foot length. You will feel it stretch, and it will not spring back, and all the ripples in the wire will straighten right out. Cheers, Tony. |
||||
| tinyt Guru Joined: 12/11/2017 Location: United StatesPosts: 438 |
Did the wire stetch from a post of the back side of the house to a temporary post at the end of the front driveway. I used a chain link fence puller and it works. Just make sure the wire does not rub on the cement surface and scrape it’s enamel. Lost some wires before I realized it. |
||||
| renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678 |
even after a stretch it is never totally kink free. I use a wet leather glove and run it along the wire between my fingers and thumb, with them at an agle offsett to each other. That does work harden it a bit but not as bad as rollers. Cheers Caveman Mark Off grid eastern Melb |
||||
| nickskethisniks Guru Joined: 17/10/2017 Location: BelgiumPosts: 458 |
Hi, Does someone know wich transformers are used in the diehl platinum 2100-4600s grid inverters? If they have the iron silicon steel toroidal transformers I can buy a few to dismantle them... |
||||
| BenandAmber Guru Joined: 16/02/2019 Location: United StatesPosts: 961 |
LadyN I have wire stretched out right now in my yard I tied it to the van my wife crashed and tied the other side to the hitch of her new used van the wire was a little bit sketchy so I brought 3. 15 Oz cans of wire enamel paint and repainted it also I stretch the wires one at a time Then tied them off to anything heavy enough I could find including police car four wheeler milk crate with a bag of sand in it Anything heavy enough to keep it off the ground so I can paint it   That's my youngest Sun (Zahyia) in that one pic he likes to do anything I'm doing and he is awesome at helping He has his own toolbox and own tools and he can already take just about anything apart without my help be warned i am good parrot but Dumber than a box of rocks |
||||
| BenandAmber Guru Joined: 16/02/2019 Location: United StatesPosts: 961 |
Yes for all of you that may be wondering I do have a junk car in my front yard I am from West Virginia what do you expect LOL be warned i am good parrot but Dumber than a box of rocks |
||||
 Print this page |
