Y ore D winding??

[Tomcandersen]

What is det best Y ore D winding?
Im looking at TP Power 4082 1800kv Y and TP Power 4082 1850kv D. They dont have the 1800kv Y in stock, but will I lose tourque whit D wind?

[viper1]

You might find this discussion interesting, and might, or might not- get some answers...

http://www.rcgroups.com/forums/showthread.php?t=372669&page=5

[detox]

-In the Delta configuration the motor will produce more rpm, but less torque. Also draw more amps than a Wye wind.
-In the Wye configuration the motor will have less rpm, but more torque. Also draw less amps than a Delta wind.

Read this motors disciption http://www.offshoreelectrics.com/pro...s-X524&cat=176

[Chilli]

IMO-I think picking the kv that best suits you needs is more important than what type of wind is used. Just make sure you have the appropriate timing set in your ESC.

[Fluid]

-In the Delta configuration the motor will produce more rpm, but less torque. Also draw more amps than a Wye wind.
-In the Wye configuration the motor will have less rpm, but more torque. Also draw less amps than a Delta wind

This is not answering the OP's question. With the Proteus and Lehner motors (featuring different wind options in the same motor) they are accurate statements, but when comparing a "D" motor with a "Y" motor they are not. Both winds are equally efficient with everything else in the motor the same - size, magnets, Kv etc. There is no real performance difference from a user standpoint in spite of the "facts" to the contrary repeated ad nauseum on the forum without proof. Someone said it once, then it gets repeated over and over without any fact checking. Chilli has it nailed.

What actually happens is folks will compare a "D" motor with 1500 Kv to a "Y" motor with a 1200 Kv and assume that the "D" is an amp hog. Or they will compare a Leopard "Y" with a Turnigy "D". Comparing equal motors yields virtually identical results. The main difference is that the "D" wind is more sensitive to winding quality - if the amount of wire on one stator is different than the adjacent stator (amount, not number of turns) then a circulating current will be induced in the windings, reducing motor efficiency. So a poorly wound "D" may be slightly less efficient than a poorly wound "Y" motor. With equal motors and Kvs they are virtually the same, just different ways to get there. There is too much evidience and motor theory for it to be any different.



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