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The revolving magnetic field produced with a two-phase system allowed electric motors to provide torque from zero motor speed, which was not possible with a single-phase induction motor (without an additional starting means). Induction motors designed for two-phase operation use a similar winding configuration as capacitor start single-phase ...
Now, if this motor is fed with current of 2 A and assuming that back-EMF is exactly 2 V, it is rotating at 7200 rpm and the mechanical power is 4 W, and the force on rotor is = N or 0.0053 N. The torque on shaft is 0.0053 N⋅m at 2 A because of the assumed radius of the rotor (exactly 1 m).
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Pages in category "Electric multiple units of Malaysia" The following 12 pages are in this category, out of 12 total. This list may not reflect recent changes. B.
Railway electrification in Malaysia is a relatively recent development of rail transport in Malaysia. While the first railway in the country dates back to 1885, it was not until 3 August 1995 that the first electrified railway service, KTM Komuter , began operations.
The word traction from Latin, being the agent noun of trahere "to pull" in the sense of "drawn" [1] [2] [3] was used for the naming of traction engines developed circa 1870. [4] The first experimental electric traction motor tramway of 1875 was rapidly developed internationally for city use.
The motor speed varies as a non-linear function of load torque and armature current; current is common to both the stator and rotor yielding current squared (I^2) behavior [citation needed]. A series motor has very high starting torque and is commonly used for starting high inertia loads, such as trains, elevators or hoists. [2]
While engines and motors have a large range of operating speeds, the power band is usually a much smaller range of engine speed, only half or less of the total engine speed range [1] (electric motors are an exception—see the section on electric motors below). Specifically, power band is the range of RPM around peak power output.
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