EMRAX 348 - EMRAX 348 Technical Data Table

User’s Manual for Advanced Axial Flux Synchronous Motors and Generators
www.emrax.com Version 4.5 / January 2017 21
EMRAX 348 Technical Data Table
Technical
data
Type
EMRAX 348
High Voltage
EMRAX 348
Medium Voltage
EMRAX 348
Low Voltage
Air cooled = AC
Liquid cooled = LC
Combined cooled = Air + Liquid cooled = CC
AC
LC
CC
AC
LC
CC
AC
LC
CC
Ingress protection
IP21
IP65
IP21
IP21
IP65
IP21
IP21
IP65
IP21
Cooling medium specification (Air Flow = AF;
Water/glycol Flow = WF – if inlet water/glycol
temperature and/or ambient temperature are
lower, then continuous power is higher)
AF=20m/s
; AA=25°C
WF=8l/mi
n at 50°C;
AA=25°C
WF=8l/mi
n at 50°C;
AA=25°C
AF=20m/s
; AA=25°C
WF=8l/mi
n at 50°C;
AA=25°C
WF=8l/mi
n at 50°C;
AA=25°C
AF=20m/s
; AA=25°C
WF=8l/mi
n at 50°C;
AA=25°C
WF=8l/mi
n at 50°C;
AA=25°C
Weight [kg]
39
40
40
39
40
40
39
40
40
Diameter ø / width [mm]
348/107
Maximal battery voltage [Vdc] and full load/no
load RPM
800 Vdc (1800/2200 RPM)
800 Vdc (2800/3400 RPM)
130 Vdc (1200/1500 RPM)
340 Vdc (3200/4000 RPM)
Peak motor power at max RPM (few min at cold
start / few seconds at hot start) [kW]
190
290
125 kW (at 1200 RPM load #)
330 kW (at 3200 RPM load ##)
Continuous motor power at load RPM [kW]
90
100
100
140
150
170
70 at #;
170 at ##
70 at #;
180 at ##
80 at #;
200 at ##
Maximal rotation speed [RPM]
4000 (with maximal battery voltage or magnetic field weakening)
Maximal motor current (for 2 min if it is cooled as
described in Manual) [Arms]
280
450
1100
Continuous motor current [Arms]
140
210
550
Maximal motor torque (for a few seconds) [Nm]
1000
Continuous motor torque [Nm]
500
Torque / motor current [Nm/1Aph rms]
3,8
2,5
0,9
Cogging torque [Nm]
5
Maximal temperature of the copper windings in
the stator and max. temp. of the magnets [°C]
120
Motor efficiency [%]
92 - 98
Internal phase resistance at 25 °C [mΩ]
32
14
5
Input phase wire cross-section [mm
2
]
10,2
15,2
38
Wire connection
star
Induction in Ld/Lq [µH]
418/452
180/195
24,3/26,3
Controller / motor signal
sine wave
AC voltage between two phases [Vrms/1RPM]
0,2320
0,1520
0,0560
Specific idle speed (no load) [RPM/1Vdc]
2,8
4,3
11,8
Specific - load speed (depends on the controller
settings) [RPM/1Vdc]
2,3 – 2,8
3,5 – 4,3
9,5 – 11,8
Magnetic field weakening (for higher RPM at the
same power and lower torque) [%]
up to 100 %
Magnetic flux – axial [Vs]
N/A
N/A
N/A
Temperature sensor in the motor
kty 81/210
Number of pole pairs
10
Rotor inertia (mass dia=270 mm, m=20kg)
[kg*cm²]
N/A
Bearings (front:back) – SKF/FAG
6009:6009 (for radial forces) for axial-radial forces contact EMRAX Company
*Controller for EMRAX 348 Low Voltage should have very high peak and continuous motor current (1100 Arms peak and 550 Arms continuous). It is difficult to
find such a high current controller in the global market. The most suitable would be the emDrive 500 from the Emsiso Company, which has 500 Arms continuous