Re: [EVGRAY] help!

Body

e engine looks okay, the insulation is ok, it doesn't discharge to the  
ground, impedance between the windings is about 5ohms, but I didn't  
understand a thing, an engine like mine with 5.5 horses, how many  
horses should have in mode 'rotoverter?



"[email protected] [EVGRAY]" <[email protected]> ha scritto:

> Hi @lamaisonpescara
>
> "...and does not have the strength that a 5.5
>  horsepower should have..."
> The motor has to be derated when running in rotoverter mode  
> according to Hector. It is probably overloaded if trying to run at  
> nominal power.
>
> Check if the rotor is damaged. Is the insulation between the  
> laminated steel sheets in working order? The current has to run in  
> the squirrel cage and not in the metal sheets.
>
> Regards
> Ole
>
>
> ---In [email protected], <info@...> wrote :
>
>  Thanks Warren for the availability, ... I hope that Doug can help me,
>  the problem is that the engine runs at full speed, even with only 2
>  phases once it starts, without capacitors, and without load it absorbs
>  very little, 0.2 AMP, however, turning the rotor very warm (not the
>  stator with the windings), and does not have the strength that a 5.5
>  horsepower should have.
>
>
>
>
>
>  "James Glinski jglinski01@... mailto:jglinski01@... [EVGRAY]"  
> <[email protected] mailto:[email protected]>
>  ha scritto:
>
>  > Send some pics of your set up .i t may help .
>  >
>  > On Thursday, June 27, 2019, Warren Keillor  
> schoonersolsticemoon@... mailto:schoonersolsticemoon@...
>  > [EVGRAY] <[email protected] mailto:[email protected]> wrote:
>  >
>  >>
>  >>
>  >> Hi Info
>  >> Something is wrong.
>  >> My WEG, once up to speed, will run
>  >> even without capacitors in the circuit.
>  >> I never ran it long like that, because I was always trying to get the
>  >> current draw as low as possible.
>  >> Now , I had better dig one of my Roroverters out of storage, and  
> test that
>  >> to see if if might, in that condition, heat up.
>  >> I use a 140, or 120 uf motor start capacitor to get my motors turning at
>  >> full 60 hz speed, before I begin my play with them, using my capacitor
>  >> tuning boxes.
>  >> As I said, I had difficulty finding oil filled high voltage, low value uf
>  >> capacitors, which are what I have been using. I have not tried  
> other types,
>  >> as I scored a whole bin of these oil filled kind, in an old electronics
>  >> surplus store in downtown Toronto, ( which has since moved to  
> some suburban
>  >> industrial area miles out of downtown) The oil filled, are not  
> common, but
>  >> are not perhaps the only kind that work. They are only my  
> experience, as I
>  >> was new to Roto Verters, and trying to get my first one going,  
> just to test
>  >> this voodoo crazy thing Hector, and Doug, were doing.
>  >> My emotions were high when the big lump of cast iron motor ran  
> full speed,
>  >> just as they said it would.
>  >> I found myself running this mass on a tiny speaker wire of 26 gauge, just
>  >> to prove to myself, I was not hallucinating- and my amp meters were
>  >> mis-reading the draw of 200ma. at 110 volts 60hz AC.
>  >> Once the magic full speed rotation happens with that 140uf cap, it was
>  >> taken out of the start circuit, and the motors keep running, whether with
>  >> grease, and seals or not.
>  >> The one with seals, and grease uses 400ma of current, while removing the
>  >> seals the other motor uses 200 ma.
>  >> Both motors were brand new,, when I got them as surplus movie props from
>  >> Del Toro's "Pacific Rim"
>  >> It was cheaper to buy these real ones from China, than to have me make
>  >> fake ones out of foam plastic, for a giant industrial scene in the movie.
>  >> After the movie, I bought a pallet of these motors at the props sale. No
>  >> one else wanted them as they were 480 volt three phase, and no  
> one has that
>  >> voltage in their homes and ordinary workshops here in Canada. They are in
>  >> the realm of heavy industries only, outside the core of major cities, in
>  >> industrial zones, with their special electrical sub stations  
> pulling power
>  >> from the main transmission grid. People buying at film prop sales don't
>  >> buy for such heavy industries, or is it usual for film companies  
> to buy the
>  >> real thing new. I was just lucky to be working on this giant 200 million
>  >> dollar budget film, with a director who likes the real stuff  
> when possible.
>  >> They bought containers of stuff from China, for scenes in the film.
>  >> It was less trouble than shooting in China.
>  >> That's the only reason I got my curious little hands on new motors, that
>  >> never had to do anything except look pretty, as part of some giant robot.
>  >> I don't spend a lot of money on my experiments. Hundreds have ended in
>  >> failures, or miserable complicated contraptions that barely show any
>  >> promise of running themselves.
>  >> Hector, in spite of his flamboyant language sometimes, redeemed himself
>  >> with this device, his Rotoverter. It works magic.
>  >> At least, in my tests,1.614 times over unity. (Hector claims  
> 1.618. I have
>  >> more to improve)
>  >> You are having a problem with yours, I have never experienced
>  >> Ask others in this group. Doug is reliable, and has a lot more  
> experience,
>  >> than I have, with this device.
>  >> Cheers Warren
>  >>
>  >> ent from Yahoo Mail on Android
>  >>  
> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature  
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>  >>
>  >> On Thu., 27 Jun. 2019 at 2:41 a.m., info@... mailto:info@... [EVGRAY]
>  >> <[email protected] mailto:[email protected]> wrote:
>  >>
>  >>
>  >>
>  >> Hi, I wanted to thank all the guys who answered me to try to help me
>  >> solve problems with a rotoverter. The variac has arrived, but even if
>  >> placed at 1/4 of the current foreseen in connection to Y, the thing
>  >> does not change, the rotor turning without load heats up, the current
>  >> consumption is low, about 0.5 amp. which increases if the capacitor
>  >> microfarads increase, and the power is low .... the only doubt I have
>  >> left is the capacitors ... they are the normal ones for AC that they
>  >> sell in electronics stores, and not the old ones in oil bath ...
>  >> that's the problem ...? Has anyone ever done the same?
>  >>
>  >> info@... mailto:info@... ha scritto:
>  >>
>  >> > Hi everyone, I'm new to the group and first of all I wanted to thank
>  >> > everyone for their kindness. I have a problem with a rotoverter. The
>  >> > motor is a three-phase 5,5horse, 50 hertz (I am in Italy), 4
>  >> > windings. 690v star connection. 1440rpm per minute (the engine can
>  >> > even go up to 60 hertz with 830V and 1730 revolutions is shown on
>  >> > the plate) Now I am testing it with the 220v 50herz rotoverter
>  >> > system, but I saw that it has little force and the rotor (cage)
>  >> > squirrel) warms up a lot ..... how come? ... I bought a variac to
>  >> > bring the voltage to 1/4 (172 volts) and I'm waiting for it to
>  >> > arrive, but is that just the problem or else? ...... Thank you so
>  >> > much for helping me out.
>  >>
>  >>
>  >>