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Squirrel-cage induction motors are very prevalent in industry, in sizes from below 1 kilowatt (1.3 hp) up to tens of megawatts (tens-of-thousand horsepower). They are simple, rugged, and self-starting, and maintain a reasonably constant speed from light load to full load, set by the frequency of the power supply and the number of poles of the ...
[a] An induction motor's rotor can be either wound type or squirrel-cage type. Three-phase squirrel-cage induction motors are widely used as industrial drives because they are self-starting, reliable, and economical. Single-phase induction motors are used extensively for smaller loads, such as garbage disposals and stationary
The triumph of the three-phase system was displayed in Europe at the International Electro-Technical Exhibition of 1891, where Dolivo-Dobrovolsky used this system to transmit electric power at the distance of 176 km with 75% efficiency. In 1891 he also created a three-phase transformer and short-circuited (squirrel-cage) induction motor.
Traction motors: 4 × Hitachi MT75A 140 kW (188 hp) 3-phase AC squirrel-cage induction motor: Power output: 2.24 MW (3,004 hp) Electric system(s) 1,500 V DC and 20 kV 50/60 Hz AC, all from overhead catenary: Current collector(s) Pantograph: Safety system(s) ATS-P, ATS-Ps: Multiple working: E657 series: Track gauge: 1,067 mm (3 ft 6 in)
A capacitor start motor is a split-phase induction motor with a starting motor capacitor inserted in series with the startup winding, creating an LC circuit which produces a greater phase shift (and so, a much greater starting torque) than both split-phase and shaded pole motors. This motor has a centrifugal switch which disconnects the ...
Mitsubishi-made three-phase squirrel-cage induction motor: Power output: 175 kW x4 per motored car (before refurbishment) ... On sets 1751 and 1752, cars 3, 4, ...
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