Transmagnetics 4-7Kw Motor
- Thread starter evolutiongts
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evolutiongts
10 kW
Miles said:Now I'm lost... :?evolutiongts said:
I count 10 here: https://endless-sphere.com/forums/viewtopic.php?p=1059167#p1059167
I count 8 on your picture above........
Obviously, we need some classification....
I see 12 magnets isn't it 6 pole pairs?
Ok, I understand. You're counting the heads of the stator teeth. If you look, you'll see eight breadloaf type magnets on the rotor. They're slightly less distinct on the photo. They're called breadloaf because they have a flat base and rounded top, sort of like a loaf of bread ..
DanGT86
100 kW
I was just looking at the segmented stator laminations in that pic. Looks like the angle of the dovetails where they connect is determined by the overall diameter of the whole thing. At first glance I was thinking that would enable them to add as many "teeth" as they wanted but due to the angles that doesnt appear to be possible. What would be the point of making them segmented like that?
Is there an electrical reason that segments would be better than a solid lamination?
Is there an electrical reason that segments would be better than a solid lamination?
It's the number of teeth itself that is the design choice. The stator is segmented to allow each tooth to be wound separately, before assembling the segments. There are other advantages such as the ability to use grain oriented electrical steel etc.
DanGT86
100 kW
Interesting. Grain never would have crossed my mind. So you can allign the grain at every segment rather than having one grain across an entire stator. Clever.
Not quite. A non segmented stator would always have non grain oriented steel (different material). Having it segmented like this allows the possibility of using grain oriented steel. Whether they have, or not, I've no idea....DanGT86 said:
DanGT86
100 kW
So this is probably too general of a question but what would be the benefit of grain oriented steel in that application? Efficiency?
sn0wchyld
100 kW
any news on this build? I want to know if the motor performs before i put any more effort into buying one (been like 9 emails so far... they dont want to sell em!)
sn0wchyld said:
Me too. I also wrote like 10 emails, asking for some details of the 5" and 6" motors, but i never got real meaningful answers.
After all it also seems to me like they don't want to sale one. They also did not provide technical drawings (i was asking for such to see the overall dimensions and how it can be mounted).
evolutiongts, a summary of the performance, especially in comparison to the BigBlock would be great.
do you know anything about the lamination thickness?
i "heard" the cogging torque is extremely strong on those transmag motors, so i don't think they can be used for regen because you want to have a freewheel. whats your thougts, and how was the cogging on the BigBlock?
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