EMRAX 348 - EMRAX 268 Technical Data Table (dynamometer test data)

User’s Manual for Advanced Axial Flux Synchronous Motors and Generators
www.emrax.com Version 4.5 / January 2017 17
EMRAX 268 Technical Data Table (dynamometer test data)
Technical
data
Type
EMRAX 268
High Voltage
EMRAX 268
Medium Voltage
EMRAX 268 Low Voltage or
EMRAX 268 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; Inlet Water/glycol Flow = WF;
Ambient Air = AA)
If inlet WF temperature and/or AA
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]
19,9
20,3
20,3
19,9
20,3
20,3
19,9
20,3
20,3
Diameter ø / width [mm]
268/91
Maximal battery voltage [Vdc] and full
load/no load RPM
700 Vdc (3200/3800 RPM)
680 Vdc (4700/5500 RPM)
130 Vdc (2300/2900 RPM)
250 Vdc (4500/5500 RPM)
Peak motor power at max RPM (few min at
cold start / few seconds at hot start) [kW]
160
230
115 (at 2300 RPM load); 220 (at 4500
RPM load)
Continuous motor power (at 2000-4000 RPM)
depends on the motor RPM [kW]
40 - 75
40 – 80
50 - 85
40 - 80
40 – 90
50 - 110
40 - 75
40 – 80
50 - 90
Maximal rotation speed [RPM]
4500 RPM (5500 RPM peak for a few seconds)
Maximal motor current (for 2 min if it is
cooled as described in Manual) [Arms]
270
400
1000
Continuous motor current [Arms]
125
190
500
Maximal motor torque (for a few seconds)
[Nm]
500
Continuous motor torque [Nm]
250
Torque / motor current [Nm/1Aph rms]
2,0
1,4
0,5
Maximal temperature of the copper windings
in the stator and max. temperature of the
magnets [°C]
120
Motor efficiency [%]
92 - 98
Internal phase resistance at 25 °C [mΩ]
26
11,5
1,7
Input phase wire cross-section [mm
2
]
10,2
15,2
38
Wire connection
star
Induction in Ld/Lq [µH]
292/273
126/118
17/15,9
Controller / motor signal
sine wave
AC voltage between two phases [Vrms/1RPM]
0,2320
0,1520
0,0560
Specific idle speed (no load RPM) [RPM/1Vdc]
5,4
8,2
22,2
Specific load speed (depends on the controller
settings) [RPM/1Vdc]
4,5 – 5,4
7 – 8,2
18 - 22,2
Magnetic field weakening (for higher RPM at
the same power and lower torque) [%]
up to 100
Magnetic flux – axial [Vs]
0,1014
0,0664
0,0245
Temperature sensor in the motor
kty 81/210
Number of pole pairs
10
Rotor inertia (mass dia=195mm, m=9,8kg)
[kg*cm²]
932
Bearings (front:back) – SKF/FAG
6206:6206 (for radial forces) or 6206:7206 (for axial-radial forces; for pull mode; focusing on very high axial load , e.g. for
air propeller) or 6206:3206 (for axial-radial forces; for pull-push mode; »O« orientation, α=25°); other bearings are
possible (exceptionally)
EMARX 268 Very High Mechanical Loads
(VHML)
6207:6207 (for radial forces) or 6207:7207 (for axial-radial forces; for pull mode; focusing on very high axial load, e.g. for
air propeller) or 7206:3207 (for axial-radial forces; for pull-push mode; »O« orientation, α=25°); other bearings are
possible (exceptionally)