The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper the induction motor is modeled in order to analyze the steady state and transient behavior and assess the characteristics of the electromagnetic torque and efficiency depending on the load. The finite element method is applied for solving the magnetic field equations throughout the x-y plane of the machine, taking into account the physical characteristics of the induction motor and,...
A new concept of a variable impedance (Z) induction motor (VZIM) is introduced in order to combine high starting torque and high efficiency at the nominal operating point. In this type of induction motors a sectionalized cage rotor with different bar shapes for each sub-cage section is used. At standstill, sub-cages with high resistances are placed inside the stator bore to increase the starting torque...
It is a known fact that when operating at light load condition, the efficiency of induction motors can be improved by reducing the supply voltage. This paper investigates the optimal efficiency of split-phase motors when loaded below their horsepower rating. An accurate equivalent circuit model that takes into account stray load loss and rotational loss, in addition to core loss, is proposed for efficiency...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.