Asynchronous traction motors, 135–1430 kW, for electric multiple units and locomotives

Description

Asynchronous traction motors are used on electric multiple units, metro, trams, high-speed trains and locomotives. The manufacturer has produced traction motors and traction drive systems since 1899; production is at the Fuchu complex (Tokyo) and at a joint venture in Dalian (China). Range (per the brochure Traction and Auxiliary Power Systems): - for electric multiple units: 140 kW, 4P, 490 V, 215 A, 2,745 rpm, self-ventilated; 190 kW (hourly), 4P, 940 V, 2,080 rpm, enclosed design; 240 kW, 4P, 1,380 V, 3,755 rpm, self-ventilated; - enclosed 6-pole motors of 140–190 kW at 980–990 V, 2,000 rpm, insulation class 200; - for high-speed trains: 285 kW, 4P, 1,850 V, 3,400 rpm, forced air cooling; - for locomotives: 565 kW (hourly), 6P, 1,100 V, 1,470 rpm, nose-suspension axle-hung; 1,150 kW, 6P, 2,000 V, 410 A, 1,585 rpm; 1,430 kW, 4P, 1,780 V, 552 A, 1,663 rpm, with forced cooling. Examples: a 170 kW enclosed-design motor (605 kg, Ø540 × 510 mm) for Kita-Osaka Kyuko 9000; 140 kW (420 kg) for WMATA 7000 cars in Washington; 240 kW (610 kg) for a commuter line in Caracas; 210 kW for SuperVia 3000 (Brazil, 3,000 V DC); 175 kW with enclosed design and external fan for Nishi-Nippon Railroad. The design allows bearing replacement without removing the rotor; enclosed designs prevent contamination of internal parts and need no cleaning for a long time. The motors are controlled by vector VVVF inverters with electric braking down to 0 km/h and sensorless speed control. Applications: multiple-unit rolling stock of 600–3,000 V DC and 20–25 kV AC systems, electric locomotives and diesel-electric locomotives with AC transmission.

Technical specifications