Transfer switch 101
... commercial and institutional facilities that require continuous or nearcontinuous uptime typically utilize an emergency power source, such as a generator or a backup utility feed, when their normal power source is unavailable. Transfer switches are responsible for quickly and safely transitioning al ...
... commercial and institutional facilities that require continuous or nearcontinuous uptime typically utilize an emergency power source, such as a generator or a backup utility feed, when their normal power source is unavailable. Transfer switches are responsible for quickly and safely transitioning al ...
Improving Efficiency of Power Electronics Converters
... applications well, but to find the best solution for a given application is needed to understand how the choice of topology may affect the key parameters, cost, overall size, EMC performance and efficiency. The importance each of these parameters varies between application and trade-offs made betwee ...
... applications well, but to find the best solution for a given application is needed to understand how the choice of topology may affect the key parameters, cost, overall size, EMC performance and efficiency. The importance each of these parameters varies between application and trade-offs made betwee ...
An alternator is an electrical generator that converts mechanical
... Brushless alternators A brushless alternator is composed of two alternators built end-to-end on one shaft. Smaller brushless alternators may look like one unit but the two parts are readily identifiable on the large versions. The larger of the two sections is the main alternator and the smaller one ...
... Brushless alternators A brushless alternator is composed of two alternators built end-to-end on one shaft. Smaller brushless alternators may look like one unit but the two parts are readily identifiable on the large versions. The larger of the two sections is the main alternator and the smaller one ...
Hysteresis Brake and Clutch user`s manual.
... Because Magtrol Hysteresis Brakes and Clutches rely purely on magnetic action working through an air gap to develop torque, there are no active components in contact and virtually no wear except for the normal wear of shaft bearings. Therefore, other than occasional bearing replacements, there is no ...
... Because Magtrol Hysteresis Brakes and Clutches rely purely on magnetic action working through an air gap to develop torque, there are no active components in contact and virtually no wear except for the normal wear of shaft bearings. Therefore, other than occasional bearing replacements, there is no ...
Resonant inductive coupling
Resonant inductive coupling or electrodynamic induction is the near field wireless transmission of electrical energy between two magnetically coupled coils that are part of resonant circuits tuned to resonate at the same frequency. This process occurs in a resonant transformer, an electrical component which consists of two high Q coils wound on the same core with capacitors connected across the windings to make two coupled LC circuits. Resonant transformers are widely used in radio circuits as bandpass filters, and in switching power supplies. Resonant inductive coupling is also being used in wireless power systems. Here the two LC circuits are in different devices; a transmitter coil in one device transmits electric power across an intervening space to a resonant receiver coil in another device. This technology is being developed for powering and charging portable devices such as cellphones and tablet computers at a distance, without being tethered to an outlet.Resonant transfer works by making a coil ring with an oscillating current. This generates an oscillating magnetic field. Because the coil is highly resonant, any energy placed in the coil dies away relatively slowly over very many cycles; but if a second coil is brought near it, the coil can pick up most of the energy before it is lost, even if it is some distance away. The fields used are predominately non-radiative, near fields (sometimes called evanescent waves), as all hardware is kept well within the 1/4 wavelength distance they radiate little energy from the transmitter to infinity.One of the applications of the resonant transformer is for the CCFL inverter. Another application of the resonant transformer is to couple between stages of a superheterodyne receiver, where the selectivity of the receiver is provided by tuned transformers in the intermediate-frequency amplifiers. The Tesla coil is a resonant transformer circuit used to generate very high voltages, and is able to provide much higher current than high voltage electrostatic machines such as the Van de Graaff generator. Resonant energy transfer is the operating principle behind proposed short range (up to 2 metre) wireless electricity systems such as WiTricity or Rezence and systems that have already been deployed, such as Qi power transfer, passive RFID tags and contactless smart cards.