Protective functions of an induction motor are mainly intended to prevent overheating of its windings. Owing mainly to overloads or unbalanced voltages, there is increase in consequent overheating of ...

One of the primary trends in motor efficiency is the transition from traditional motors, such as AC induction motors, to more efficient types like brushless DC (BLDC) motors, permanent magnet ...

Ford Motor could be forced to lay off employees if the Trump administration ends subsidies and other financial support for electric vehicle manufacturing, the company’s chief executive said on ...

In applications that require a three-phase induction motor (IM) to be driven by an inverter from a dc bus input of much higher voltage than needed, the option is to use a step down dc–dc converter ...

First, let’s discuss the wiring of a three-phase AC motor. A three-phase AC motor has three windings, each of which is connected to a different phase of the AC power supply. The windings are usually ...

In a typical (grid-supplied) three-phase sine wave, you will always have a zero-sum after adding up all three potentials at any given point along all three waveforms. This is because each wave is ...

Ordinary oscilloscopes can view basic parameters in modern motor drives, but operational insights generally require specialized power analyzers. Variable frequency drives (VFD) generate carefully ...

(Fig. 1) Three-phase Wye connection Delta. A three-phase Delta is a 240 VAC feed with one phase center-tapped as shown in Fig. 2 to provide two 120 VAC feeds and neutral for single-phase loads. This ...

This fifth-generation BMW motor has no magnets. It operates as a three-phase AC synchronous motor using brushes and a commutator to provide power to the rotor windings, meaning that AC brushed ...

The outputs to the motor winding are derived from the three integrated MOSFET half-bridges. The MOSFETs have a low 95-mΩ on-resistance. Output current-sense resistors are built-in.