LIM — linear asynchronous traction motor for metro, 120 kW
The linear asynchronous traction motor (LIM) is intended for metro systems with linear drive, in which traction force is produced without a rotating shaft and gearing, through the interaction of an inductor mounted on the car bogie with a reaction rail laid
- Type
- linear asynchronous motor (LIM)
- Rated power
- 120 kW
- Dimensions
- 2530 × 710 mm (length × width)
- Mass
- 1350 kg
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
The linear asynchronous traction motor (LIM) is intended for metro systems with linear drive, in which traction force is produced without a rotating shaft and gearing, through the interaction of an inductor mounted on the car bogie with a reaction rail laid along the track. This scheme allows the wheel diameter and car height, and hence the tunnel cross-section, to be reduced, and provides traction that does not depend on wheel–rail adhesion, which matters for steep gradients and tight curves. The typical motor has a rated power of 120 kW, dimensions 2530 × 710 mm (length × width) and a mass of 1350 kg; cooling is natural air without a fan, which simplifies maintenance. Motors of this type are used on the Toei Oedo line in Tokyo, on 12-600 series trains: in 1990–2000, 58 sets with 1192 motors were delivered; maximum speed 70 km/h. Linear motors are part of the overall range of traction machines together with asynchronous and permanent-magnet synchronous motors; design is carried out for the characteristics of a specific train using the finite element method. Production takes place at the plant in Japan, certified to EN 15085-2, ISO 9001 and ISO 14001. The item is relevant for light-metro projects and automated transport systems with linear drive.
Technical specifications
| Type | linear asynchronous motor (LIM) |
|---|---|
| Rated power | 120 kW |
| Dimensions | 2530 × 710 mm (length × width) |
| Mass | 1350 kg |
| Cooling | natural air |
| Example | Toei, 12-600 series (58 sets, 1192 motors, 1990–2000), 70 km/h |
Request a price and lead time
LIM — linear asynchronous traction motor for metro, 120 kW. We reply within one business day.
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