Cutler-Hammer - Performance Power Solutions
... reactors for reducing Isolation and provides isolation for harmonics unless in pairs transformer some transients for shifting phases Not always an option Slightly better than AC for drives DC Choke line reactors for 5th and 7th Less protection for harmonics ...
... reactors for reducing Isolation and provides isolation for harmonics unless in pairs transformer some transients for shifting phases Not always an option Slightly better than AC for drives DC Choke line reactors for 5th and 7th Less protection for harmonics ...
Experimental results
... D. Short circuit detection and protection-The short circuit protection was provided by desaturation detection, i.e. Collector emitter voltage sense. The desaturation detection feature and subsequent withdrawal of gate drive is the inherent feature of Powerex make M57962CL-01 IGBT gate driver. As the ...
... D. Short circuit detection and protection-The short circuit protection was provided by desaturation detection, i.e. Collector emitter voltage sense. The desaturation detection feature and subsequent withdrawal of gate drive is the inherent feature of Powerex make M57962CL-01 IGBT gate driver. As the ...
AN-6300 - Fairchild
... MOSFET effective output capacitance and primaryside inductance. If a resonant capacitor is added to be paralleled with Coss, tf can be increased and EMI can be reduced. However, this forces a switching loss increase. The typical value of tf for NB adaptor application is about 0.5~1μs. ...
... MOSFET effective output capacitance and primaryside inductance. If a resonant capacitor is added to be paralleled with Coss, tf can be increased and EMI can be reduced. However, this forces a switching loss increase. The typical value of tf for NB adaptor application is about 0.5~1μs. ...
E f
... reluctance thousands times lower than the reluctance of the air-gap, the resulting flux increases linearly first. When the saturation is reached, the core reluctance greatly increases causing the flux to increase much slower with the increase of the mmf. ...
... reluctance thousands times lower than the reluctance of the air-gap, the resulting flux increases linearly first. When the saturation is reached, the core reluctance greatly increases causing the flux to increase much slower with the increase of the mmf. ...
Chapter18 - Free-Energy
... electromagnets, leading to the formation in them of different currents. To this end, electromagnets which are connected in series can be shunted by capacitor, and connected in parallel with the electromagnets used but with a somewhat different number of turns. The resulting voltage distribution on t ...
... electromagnets, leading to the formation in them of different currents. To this end, electromagnets which are connected in series can be shunted by capacitor, and connected in parallel with the electromagnets used but with a somewhat different number of turns. The resulting voltage distribution on t ...
Optimized Design of Salient Pole Synchronous Generators
... Even more difficult is the calculation of open circuit core loss. Simply adding up loss in the stator teeth and yoke based on calculated flux densities and Epstein tests produces a loss which must be multiplied by a factor of at least 2 to get the loss in the actual machine. The discrepancy is expla ...
... Even more difficult is the calculation of open circuit core loss. Simply adding up loss in the stator teeth and yoke based on calculated flux densities and Epstein tests produces a loss which must be multiplied by a factor of at least 2 to get the loss in the actual machine. The discrepancy is expla ...
A High-Efficiency Active Battery-Balancing Circuit Using Multiwinding Transformer Fellow, IEEE
... Siqi Li, Chunting Chris Mi, Fellow, IEEE, and Mengyang Zhang, Member, IEEE ...
... Siqi Li, Chunting Chris Mi, Fellow, IEEE, and Mengyang Zhang, Member, IEEE ...
Development of BLDC Motor using Metal Powdered Core for 42V
... the weak point in the performance due to a low permeability of metal powder. The applied machine is a 150W BLDC motor, and its stator has 12 slots and the rotor is built of 8 poles of radial magnetic, Ferrite magnet. In order to compare of the metal powder BLDC motor with lamination core one, three ...
... the weak point in the performance due to a low permeability of metal powder. The applied machine is a 150W BLDC motor, and its stator has 12 slots and the rotor is built of 8 poles of radial magnetic, Ferrite magnet. In order to compare of the metal powder BLDC motor with lamination core one, three ...
Techniques For Implementing A Positive And Negative Output
... Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered documentation. Info ...
... Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered documentation. Info ...
ElEctric and MagnEtic FiElds (EMF)
... The philosophy advocated by some until further EMF research results are known. Under this philosophy, those EMF exposures that can be avoided– without major investments–are avoided. ...
... The philosophy advocated by some until further EMF research results are known. Under this philosophy, those EMF exposures that can be avoided– without major investments–are avoided. ...
generator protection
... protection is implemented after normalizing the terminal voltage by the frequency of the generator. Out-of-Step Protection With modern generators having large Xd and EHV transmission having low reactance, it is likely that the electrical center, a consequence of out-of step condition would be withi ...
... protection is implemented after normalizing the terminal voltage by the frequency of the generator. Out-of-Step Protection With modern generators having large Xd and EHV transmission having low reactance, it is likely that the electrical center, a consequence of out-of step condition would be withi ...
Current Transducer CTSR 0.3-TP/SP14 I = 300 mA
... %, corresponding to an interval between −sigma and +sigma for a normal distribution. Typical, minimum and maximum values are determined during the initial characterization of a product. ...
... %, corresponding to an interval between −sigma and +sigma for a normal distribution. Typical, minimum and maximum values are determined during the initial characterization of a product. ...
A New Linearization Method of Unbalanced Electrical Distribution Networks
... energy resources (DERs) efficiently to achieve operational objectives compatible with sustainability of energy systems are in particular need of development [2]. Management and optimizing the operation of these active DNs requires a full AC-formulation of the power flow equations, and various approach ...
... energy resources (DERs) efficiently to achieve operational objectives compatible with sustainability of energy systems are in particular need of development [2]. Management and optimizing the operation of these active DNs requires a full AC-formulation of the power flow equations, and various approach ...
Transformer
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. Commonly, transformers are used to increase or decrease the voltages of alternating current in electric power applications.A varying current in the transformer's primary winding creates a varying magnetic flux in the transformer core and a varying magnetic field impinging on the transformer's secondary winding. This varying magnetic field at the secondary winding induces a varying electromotive force (EMF) or voltage in the secondary winding. Making use of Faraday's Law in conjunction with high magnetic permeability core properties, transformers can thus be designed to efficiently change AC voltages from one voltage level to another within power networks.Since the invention of the first constant potential transformer in 1885, transformers have become essential for the transmission, distribution, and utilization of alternating current electrical energy. A wide range of transformer designs are encountered in electronic and electric power applications. Transformers range in size from RF transformers less than a cubic centimeter in volume to units interconnecting the power grid weighing hundreds of tons.