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P03 70M252D-F
Target applications Print
Hybrid electric and electric vehicles are the primary target applications.
Electrodrive P03 70M252D-F is particularly suitable for direct drive applications in automobiles, motorcycles, small utility vehicles and microbuses.
Other applications include forklifts, machinery and small wind power plant generators.


Specifications (Preliminary) Print
ImageElectrodrive P03 70M252D-F employs permeable pole cores and is provided with channels and integrated in/outlets for a cooling fluid.

Motor construction
Radial
Number of phases
3
Commutation
Electronic
Type of EMF
Sinusoidal

Rated torque 1, 3
70 Nm
Peak torque 2, 3
300 Nm
Cogging torque
< 0,2 Nm
Torque ripple (sinusoidal EMF)
< 2 %
Rated speed
600 min-1
Maximum speed
2000 min-1
Rated power
4,4 kW

Diameter
252 mm
Length 4
62 mm
Mass
8,2 kg
Moment of inertia
0,012 kgm2

Efficiency 5
> 92 %
Copper loss constant 5, 6
0,04 W(Nm)-2
Core loss constant 5, 7
0,8 Ws2
Torque constant K 5
0,25 Nm/W
Temperature constant 8
0,001 K(Nm)-2
Dynamic heat capacity
1,6 kJ/K

1
Peak current density per phase jP = 10 A/mm2
2
Peak current density per phase jP = 60 A/mm2
3

RMS current density per phase equals 0,707 of peak current density for sinusoidal EMF.
4
Casing not including shaft
5


Motor only at rated operating parameters:
Torque = 70 Nm, Speed = 600 min-1,
Temperature = 60°C
6


Copper loss in Watts is approximated by a product of copper loss constant and squared value of torque in Nm.
7


Core loss in Watts is approximated by a product of core loss constant and squared value of speed in Hz.
8
Employing liquid cooling

Image
P03 70M252D-F torque-current characteristic at stall


P03 70M242D Print
P03 70M242D is a version of P03 70M252D-F having the same electromechanical properties but without provisions for fluid cooling. It has a diameter of 242 mm and weights 7,7 kg.