Electric Machine Efficiency and Losses
Regardless of which type of electric machine is chosen for a particular job, efficiency is important for several … Read More
Regardless of which type of electric machine is chosen for a particular job, efficiency is important for several … Read More
Figure 1 shows a cross-sectional view of a salient-pole synchronous machine. The armature windings are shown as concentrated … Read More
Figure 1 shows elementary permanent- magnet machine. It is very similar to the AC machine; however, instead of … Read More
The article covers the construction and operation of synchronous machines, focusing on the rotor and stator components. It … Read More
Figure 1 shows a simple, single-turn, permanent- magnet machine. The single-turn coil is free to rotate between two … Read More
A practical transformer is not ideal and will require current into the primary winding to establish the flux … Read More
Consider the simple model of the atom in Figure 1. Electrons move around the nucleus like the earth … Read More
One method of protecting sensitive equipment against power interruptions is the uninterruptible power supply (UPS). The UPS has … Read More
Any electrical load that does not have a linear relationship between the voltage applied to it and the … Read More
Ideally, all voltages and currents in the power system should be single-frequency sinusoids (60 Hz in North America). … Read More
This article covers the key differences between star and delta connection on the basis of several important factors … Read More
This article covers the key differences between intrinsic and extrinsic semiconductor materials on the basis of purity, conductivity, … Read More