EMRAX 268 - EMRAX 228 Technical Data

User’s Manual for Advanced Axial Flux Synchronous Motors and Generators
www.emrax.com Version 4.5 / January 2017 15
EMRAX 228 Technical Data Table (dynamometer test data)
Technical data
Type
EMRAX 228
High Voltage
EMRAX 228
Medium Voltage
EMRAX 228
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]
12,0
12,3
12,3
12,0
12,3
12,3
12,0
12,3
12,3
Diameter ø / width [mm]
228/86
Maximal battery voltage [Vdc] and full load/no
load RPM
670 Vdc (5300/6500 RPM)
470 Vdc (5170/6500 RPM)
130 Vdc (4400/5200 RPM)
Peak motor power at max RPM (few min at
cold start / few seconds at hot start) [kW]
100
Continuous motor power (at 3000-5000 RPM)
depends on the motor RPM [kW]
28 - 42
28 - 42
35 - 55
28 - 42
28 - 42
35 - 55
28 - 42
28 - 42
35 - 55
Maximal rotation speed [RPM]
5500 (6500 RPM peak for a few seconds)
Maximal motor current (for 2 min if cooled as
described in Manual) [Arms]
240
340
900
Continuous motor current [Arms]
115
160
450
Maximal motor torque (for a few seconds)
[Nm]
240
Continuous motor torque [Nm]
125
Torque / motor current [Nm/1Aph rms]
1,1
0,75
0,27
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]
18
8,0
1,12
Input phase wire cross-section [mm
2
]
10,2
15,2
38
Wire connection
star
Induction in Ld/Lq [µH]
177/183
76/79
10,3/10,6
Controller / motor signal
sine wave
AC voltage between two phases [Vrms/1RPM]
0,0730
0,0478
0,0176
Specific idle speed (no load RPM) [RPM/1Vdc]
9,8
14
40
Specific load speed (depends on the controller
settings) [RPM/1Vdc]
8 – 9,8
11 – 14
34 – 40
Magnetic field weakening (for higher RPM at
the same power and lower torque) [%]
up to 100
Magnetic flux – axial [Vs]
0,0542
0,0355
0,0131
Temperature sensor in the motor
kty 81/210
Number of pole pairs
10
Rotor inertia (mass dia=175mm, m=5,5kg)
[kg*cm²]
421
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)