QSMOTOR
1 kW
about copper fill:
since the V3 type has different stator it also has differnt kV per turn count.
this means we need to compare motors with same kV / kT for.
for 9T motor this means:
QS V3: 24 strands
QS V2: 20 strands
Cromotor: 18 strands (seems to be even poorer than QS V2)
(Mxus: 16 strands)
Vito: Here is some correction about QS Motor.
For 205 3kW V3 type, 9kv
the winding is 24*5T, the sectional area of 24 strands per turn equal to 4.8mm², although the phase wire outside of motor is 8-10mm².
So it is meaningless to talk about phase wire outside of motor.
For 205 3kW V2 type, 9kV
The winding is 18*4, the sectional area of 18 strands per turn equal to 3.6mm², the phase wire outside of motor is 8mm².
Best Regards