User’s Manual for Advanced Axial Flux Synchronous Motors and Generators
www.emrax.com Version 4.5 / January 2017 56
Maximal motor RPM according to specific load motor speed:
Maximal wheel rotating at full load:
Circumference of the wheel:
Maximal EV speed without magnetic field weakening:
!Note: Maximal EV speed can be much higher at the same power with magnetic field weakening (MFW). This setting
can be made in the controller software.
Travel range with 30 kWh of battery capacity:
Average power, which is needed to drive EV approximately 100 km/h, is approximately 12 kW motor power.
Therefore theoretically expected travel range is close to 250 km with one charging of the batteries. In practice the
producer of the batteries does not recommend 100% discharging of the batteries, therefore 200 km is what can be
expected in reality.
22. EMRAX Certificates
EMRAX motors are in the process of obtaining certificates.
Until now the EMRAX motor obtained the EMC certificate (E26) – electromagnetic field testing. This means that the motor
complies with essential protection requirements of EMC Directive 2014/30/EU. EMRAX approval number is: E26 10 R 05 1160.
EMC certificate is important for electric vehicles.
23. EMRAX disclaimer
The EMRAX Company does not assume any responsibility for difficulties, which are the result of inappropriate
configuration, electric system structure and settings that are not in accordance with the latest version of the Manual
for EMRAX motors. Every motor is tested before shipping at ambient conditions and parameters, which are
described in the Technical Data Tables. If EMRAX motors are not used in accordance with this manual it causes a void
of warranty. Products of the EMRAX Company have been developed for usage on electric vehicles, planes, boats,
power plants. Company EMRAX assumes no liability in case a customer uses components for the purposes for which
they have not been developed or tested, and especially not for the purpose of presenting a direct threat to human
life or health. The EMRAX Company does not assume any responsibility for damages caused by using the motors for
testing purposes in circumstances which differ from standard usage of the motor. Any responsibility of the EMRAX
Company expires in one year after the delivery of the motor. For maintenance and usage standards see Manual for
EMRAX motors. The EMRAX Company does not take any responsibility on damages, injuries or other consequential
losses caused by product failure of the user or any third person.
General Terms and Conditions of the EMRAX Company are available here: www.emrax.com
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