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Alternative motor windings and drive schemes

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  • Hallo,

    Ich habe keine Zeit, mich mit Thomas zu wiederholen. Die richtige wärmeleitende Verbindung ist definitiv besser als gar nichts. Sie muss nicht vakuumimprägniert werden, um zu funktionieren, und sie senkt den Arbeitswiderstand des Drahtes. Es ist rücksichtslos, irgendetwas zu verwenden, denn egal, was er denkt, der Draht bewegt sich mit Strom. Dies wurde in Discfrete-Laboren getestet. Stellen Sie es nicht in Frage. Finden Sie die richtige Verbindung für Ihre Motoren und sichern Sie die Wicklungen. Das wird sicherlich länger halten. Wärmeleitendes Kapton auf einem blanken Stator ist eine gute Idee. Ich würde dabei bleiben, aber das richtige Epoxidharz besorgen, das am Kapton haftet. Ich habe vor einiger Zeit einiges in diesem Thread gepostet.​

    Er sollte seine Leistungsansprüche auch mit Datenprotokollen untermauern. Er ist ein ausgezeichneter Winder, daher bin ich sicher, dass sie gute Ergebnisse erzielen werden.

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    • You need the right Kapton....

      Dupont MT

      Kapton® MT+ Higher Thermally Conductive Film

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      • Click image for larger version  Name:	IMG_7647.jpg Views:	0 Size:	65.0 KB ID:	421392
        Wo ist dein 20-Pol?. Sein Mund stellt Schecks aus, die sein Arsch nicht einlösen kann. Vielleicht dauert es 5 Jahre und kommt trotzdem nicht vor wie der falsche Stern-Dreieck-Thread dort. Wie verwenden Piloten leere Statoren und Motoren, die nicht von den Autoren laufen? Tastaturschreiben ist ihre Spezialität?

        "Man muss sich schon Wundern ? Weshalb wickelt jemand einen Stator mit einem normalen Wickelschema obwohl er schon alles für seine Belange hin ausgetestet hat ? Vor was hat jemand Angst ? Was will man damit beweisen ? Dass man mit den früheren Versuchen gepfuscht hat oder was soll den der Aktionismus den plötzlich belegen ? Und eine Wicklung aufzieht die für hohe Drehzahlen mit wenigen Windungen in eine ganz andere Richtung zielt ."
        ~CL~


        Danke,
        Hubert

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        • Attached Files

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          • In small motors.......

            "By increasing the groove closure, the maximum air gap flux density can be increased with the same amount of magnets.
            The flux distribution of an 8-pole PM motor with different groove closure is shown in Fig. 3. Small groove openings are commonly used in most small engine designs. Although a reduction in groove openings does not reduce static iron losses, it does increase flow, developed torque, and therefore percentage vortex loss. Fully closed grooves, as shown in Fig. 3(a), increase the leakage flow in the tooth shoes. This leakage flux does not contribute to the developed torque, but increases iron loss in this area. Therefore, fully closed grooves are not recommended."

            ~Chunting Chris Mi, Senior Member, IEEE, Gordon R. Slemon, Life Fellow, IEEE, and Richard Bonert, Member, IEEE~

            This also suggest what the right slot wedge could do.


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            • Click image for larger version  Name:	P2270337.jpg Views:	4 Size:	118.1 KB ID:	421399
              "The total number of slots is usually limited by the frame size. If the total number of slots is fixed, the number of slots per pole phase is inversely proportional to the number of poles. The tooth eddy current loss and the hysteresis loss can be written as functions of speed. Therefore, both tooth eddy current losses and tooth hysteresis losses are proportional to the number of poles."

              ​~Chunting Chris Mi, Senior Member, IEEE, Gordon R. Slemon, Life Fellow, IEEE, and Richard Bonert, Member, IEEE~

              So its very hard for me to believe on 12 slots 20 poles is better than 12 slots on 10 pole especially will less copper in the slot.

              Crank it up....Chris

              YT
              Hubert

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              • Click image for larger version

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                • Click image for larger version  Name:	fetch?id=421180&d=1741181080.png Views:	0 Size:	35.4 KB ID:	421406
                  When you've been shown better and still do something else you have to blame yourself for being stuck in antiquity. To see it thus know better and still think convention has a chance is purposeful ignorance. In short its DUMM. Going head to head plays right into its hand. It welcomes you. Nothing at all has changed about the tooth geometry for these results.

                  Enjoy the joker..... Click image for larger version  Name:	Jester.gif Views:	0 Size:	401 Bytes ID:	421408

                  Hubert
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                  • I see you Ralph,
                    As I stated before you can remove iron in the right places and increase torque. Learn about tooth notching and asymmetry in the tooth tips where only part of the tip is removed. Less iron is certainly the case in such a scenario and you couple it with a single layer winding. Even Dr Gerling flussperren has adopted asymmetry there.

                    I know you must feel strange since you've been told from the expert open slots and hammerless teeth are the only way. it reads differently from the PhDs doesn't it?


                    Hubert

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                    • Parallel slots are a great idea as they have a more even current distribution across all the wires in the slot but at a small frame size you have hurt nothing by capping it off with slight closure which would have lessened the need for so much pm and a heavier bell plus the expensive litz and segmentation process to counteract the slot leakage, that drives proximity and skin losses into overdrive. However the wide teeth few coils and few poles are mostly an advantage at itz size. That is also true. Properly dimensioned flat coils would allow allot of copper in the slot so all needs to happen is for the editor to show you how to make those coils happen transforming round wires to them with the needle nose pliers.

                      But I also thought "a kid" could design these slinky copper coils at home???

                      TTYL
                      Hubert
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                      • Forget Helmuts charts too if that's the case and get a real bench that measures the mechanical (rpm and torque) with a lever arm at a load cell and optical tach
                        with data acquisition. Audiosmith's methodology to compare the motors is fine as long as his error applies equally to the machines. For comparisons sake or to see improvement in a rewound motor from OEM that does not even matter..

                        Measure the motor constants and put the motor in Holle's calculator. That's fair...

                        JOKERS....

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                        • Well at least u know a p650 with 14 turns in a hybrid has a Kv of approx. 536 If it were me id wind it with the large wire considering the idle current the DUT drew. I think what you will find different in dc resistance very minimal.

                          Think about.

                          TTYL
                          Hubert

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                          • Hi Ralph

                            Poor Thomas now with no where else to turn the hater attacks the joker engine. Posting more about FOC when they do not know anything about it if they think it will run optimally at high speed over a six step drive. These guys are hard of hearing so you cannot help them in reality. The musician and the monkey are nothing but trouble. You could restrict them both to the same sandbox.

                            What Thomas is doing is just fine and those two haters wind nothing they just type and stir up negativity all the time.


                            Another diversion from the 20 pole wundermotor that everyone is "stupid" about....

                            Keine Sorge, Gerd oder Thomas werden ihn hinsetzen, warte einfach ab. Jeder kann sehen, dass es ihm nur darum geht, andere zu hassen, die produktiver sind als er. So ist er nun einmal ... Er kann nicht an der Gemeinschaft teilnehmen. Er ist besser als alle anderen.

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                            • Click image for larger version  Name:	image.png Views:	0 Size:	76.8 KB ID:	421436Hmm this is interesting. But if the HK5 4035 makes more power than the Lehner of the same weight why should they care? If speed flight in uninteresting why do you break your neck trying to prove anything to them from the onstart? You are directly in the middle of their thread talking about its not important. 😂

                              Insulting them only hurt Lehners sales. And why are you there?

                              You proposed a 20 pole to them and did not even show them it runs so why should they be listening you hadn't completed anything from hall sense to the 20 pole. They never saw the cooling implemented in real life so what are they supposed to rant and rave about? You haven't given them anything tangible no comparative data or things that matter beyond the keyboard, fallacy, and insult. They cant fly that!

                              Or inanimate nonsense.

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                              • You haven't shown a hand winding you showed 3 teeth wrapped on a motor stator that does not run.



                                What in the world are you talking about? No body including Ralph stops you from producing relevant results but you. You are righ there in your own thread and fallacy versus data and work is what you get like so.

                                You posted all that bs speech and the motor still does not run.

                                That's the sad reality you miss.

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                                • All it takes is you the suggester of it to hand wind it YOURSELF run it and show everyone how well it works. What good is a suggested hand winding you the child prodigy cannot pull off yourself as bright as you are?


                                  Hubert

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                                  • Halo,
                                    ​Es ist ziemlich interessant, dass der 14-polige P800 nur 490 Gramm wiegt. Nur 10 Gramm mehr als der LMT 4125. Vielleicht werde ich ihn mit einer neuartigen Wicklung in den Stellvertreterkrieg einsteigen lassen. Der P750 wiegt 485 Gramm. Noch einer, der in den Krieg einsteigen könnte.​

                                    Vielleicht könnte ich damit über 10 kW protokollieren.

                                    Pyros können Geschwindigkeitspiloten definitiv zufriedenstellen. Sie haben sich bewährt.​


                                    Hubert
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                                    • For reference a 1.5 turn Neumotors 4638 is 675 Kv and will generate 5.088 Nm at 359 amperes. With the right propeller at 12,000 rpm it can hang in there with the best I'm sure. It is only 445 grams.

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                                      • Click image for larger version  Name:	image.png Views:	0 Size:	69.0 KB ID:	421453Ausgezeichneter Beitrag. Es ist längst überfällig, dass der Engine-Leader tatsächlich etwas aufzieht und es energisch hochjubelt, wie sein Geschwätz darüber, dass alle und alles minderwertig sind, außer den oberen 7 %. Sein Unternehmen hat die ganze Welt und alle anderen Ingenieure zusammen übertroffen, also hoffen wir, dass er seine eigenen Aufziehvorschläge mit all seinem arroganten Arschlochverhalten fertigstellen kann.

                                        Alle Augen richten sich jetzt auf seine eigenen Wickelfähigkeiten. Sein Freund braucht weitere 5 Jahre und schafft es immer noch nicht, eine einzige Wicklung abzuschließen, schreibt aber in jedem Thread. Wenn man wirklich darüber nachdenkt, ist der Betrug unglaublich.

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                                        • But lets get one thing for scorpion fans Straight Ralph.... his suggestion to come to class here was never used ONLY because you were already here camping in class before he got here so at least your friend Farkas in Germany can know what is on the tips of his thumb with your post....

                                          U've been in class here since day 1 sept 2023!

                                          You hadn't provided an ounce of data for the 20 pole either and you WOUND IT!!!!

                                          You are a twin with your data-less bs too....




                                          Only one in the world has wound a suggested and proven new winding concept in an external rotor in and run it for the forum and you haters there. I even paralleled it for the dc junkies. 😛

                                          I don't think the 20 pole has ever run because there is no data!!! Kv, Rm, Io, nothing tangible from the GSM on the topic at all.

                                          Learn how to provide real data and video with your Wunder motors then you can line up at the starting line. All you did is made excuses why you haven't provided any data or proof it even runs. The same exact way... Dr Ralph Okon. You need more classes here as you provided zero data on the subject matter as well.

                                          You test just as poorly with nothing but unilog. As if that would show harmonics or waveforms. You don't know how to use a scope either the same way...

                                          U said Dieters winding doesn't work so you know u need a winding manual from Munich just like the one I gave Sebastian

                                          Here he gets the scientific explanation of why high poles with low slot numbers has their own set of issues.

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