External permanent magnet electric motors
The external permanent magnet motor 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.
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] |