EMRAX 348 - EMRAX 188 Technical Data Table

User’s Manual for Advanced Axial Flux Synchronous Motors and Generators
www.emrax.com Version 4.5 / January 2017 12
EMRAX 188 Technical Data Table
Technical data
Type
EMRAX 188
High Voltage
EMRAX 188
Medium Voltage
EMRAX 188
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/min
at 50°C;
AA=25°C
WF=8l/min
at 50°C;
AA=25°C
AF=20m/s;
AA=25°C
WF=8l/min
at 50°C;
AA=25°C
WF=8l/min
at 50°C;
AA=25°C
AF=20m/s;
AA=25°C
WF=8l/min
at 50°C;
AA=25°C
WF=8l/min
at 50°C;
AA=25°C
Weight [kg]
6,8
7,0
7,0
6,8
7,0
7,0
6,8
7,0
7,0
Diameter ø / width [mm]
188 / 77
Maximal battery voltage [Vdc] and full
load/no load RPM
400 Vdc (6400/7600 RPM)
270 Vdc (6750/7830 RPM)
100 Vdc (7000/7800 RPM)
Peak motor power at max RPM (few min at
cold start / few seconds at hot start) [kW]
70
Continuous motor power (at 3000-6000
RPM) depends on the motor RPM [kW]
15 - 28
15 - 30
17 - 35
15 - 28
15 - 30
17 - 35
15 - 28
15 - 30
17 - 35
Maximal rotation speed [RPM]
7000 (8500 peak for few seconds)
Maximal motor current (for 2 min if cooled
as described in Manual) [Arms]
200
300
800
Continuous motor current [Arms]
100
150
400
Maximal peak motor torque [Nm]
100
Continuous motor torque [Nm]
50
Torque / motor current [Nm/1Aph rms]
0,60
0,39
0,15
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]
/
/
/
Input phase wire cross-section [mm
2
]
10,2
15,2
38
Wire connection
star
Induction Ld/Lq [µH]
/
/
/
Controller / motor signal
sine wave
AC voltage between two phases
[Vrms/1RPM]
0,0384
0,0252
0,0055
Specific idle speed (no load RPM)
[RPM/1Vdc]
19
29
78
Specific load speed (depends on the
controller settings) [RPM/1Vdc]
16 – 19
25 – 29
70 – 78
Magnetic field weakening (for higher RPM
at the same power and lower torque) [%]
up to 100
Magnetic flux – axial [Vs]
/
/
/
Temperature sensor in the motor
kty 81/210
Number of pole pairs
10
Rotor Inertia (mass dia=160mm, m=3,0kg)
[kg*cm²]
/
Bearings (front:back) - SKF/FAG
6204:6204 (for radial forces) or 6204:7204 (for axial-radial forces; for pull mode; focusing on very high axial load, e.g. for air
propeller) or 6204:3204 (for axial-radial forces; for pull-push mode; »O« orientation, α=25°); other bearings are possible
(exceptionally)