External permanent magnet electric machines
The external permanent magnet machine is shorter than normal motors, making it ideal when axial length is a crucial application parameter. It is designed to be connected directly to the ICE flywheel housing with part of the motor incorporated within it, further shortening the length of the motor.
Features and benefits
- Compact and robust structure
- High efficiency throughout the operation range
- Liquid cooled with plain water or water/glycol mixture
- Low coolant flow required
- High allowed coolant temperature
- IP65 enclosure class to maximize reliability
- Multiple mounting possibilities
Generator-specific features
- Standard SAE flange mounting to match the diesel engine connection
- Wide selection of speed ratings allowing the generator to be selected to customer specific applications with various voltage requirements
- Can be also used as starter motor for the ICE
Motor-specific features
- Extended speed and torque capabilities compared with standard PM motors
- Motor structure capable of producing high starting torque
- Optimized speed range to meet the most common gear ratios used in heavy mobile machinery
Applications
- Generators for diesel-electric/serial hybrid applications
- Traction/propulsion motors
- Generators/motors for parallel hybrid applications
Specifications
| Model | Nominal voltage | Continuous power kW [hp] | Continuous torque Nm [lb ft] | Peak torque Nm [lb ft] | Max. speed rpm | Diameter/length mm [in] | Weight (with no options) kg [lbs] |
| PM E375 | 500 | 25 to 54 [34 to 72] | 147 to 210 [108 to 154] | 800 [590] | 4,000 | 451 / 66 to 196 [17.8 / 2.6 to 7.7] | 75 to 85 [165 to 187] |