Results 11 to 20 of about 61,164 (293)
EDIS, 2019 A stray electrical current passing through a cow's body may cause reduced milk production and health problems. The electrical current can be caused by poor or faulty wiring, faulty equipment, improper grounding, or originate off the farm and be ...
Jonathan A. Watson +2 more
doaj +5 more sources
Parametric Modeling and Analysis of High Power IGBT Device
Kongzhi Yu Xinxi Jishu, 2023 In the high-power IGBT module commutation circuit, under the combined impact of stray inductance and di/dt, the IGBT is under significant voltage and current stresses during the processes of switching on and off, which increases system losses and ...
LIU Fei, MAO Kaixiang
doaj +3 more sources
International Standards for the Induction Motor Efficiency Evaluation: a Critical Analysis of the Stray-Load Losses Determination [PDF]
, 2003 Motor efficiency has to be measured or calculated in accordance with international standards. The most important standards are the IEEE 112-B, IEC 34-2, and JEC 3 .
Boglietti, Aldo +3 more
core +1 more source
Power transformer additional load losses separation procedure [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2011 The proposed procedure is based on the fact that total transformer losses (PLL1,n), determined by short circuit test, can be separated into two components: the eddy current losses in the windings (PEC1,n) and stray flux losses (PSL1,n) in iron parts of ...
Kostić Miloje M.
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Comparison of motor stator teeth built of soft magnetic composite and laminated silicon steel sheets in an axial flux permanent magnet synchronous machine [PDF]
, 2015 This paper compares the iron losses generated by the concentrated excitation windings for the axial flux permanent magnet synchronous machine stator core elements constructed with laminated silicon steel sheets and soft magnetic composites. The two types
De Gersem, Herbert +2 more
core +2 more sources
Shielding measures of power transformer to mitigate stray loss and hot spot through coupled 3D FEA
High Voltage, 2017 Leakage flux generated in the power transformers cause stray losses in metallic parts of the transformer. Stray losses largely affect the transformer hot spot which leads to thermal failure.
Sujana Dasara +2 more
doaj +1 more source
Experimental Loss Segregation in a Solid Rotor Induction Motor
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2022 Solid rotor induction motors (SRIMs) are asynchronous motors suited for high speed applications. This work presents an experimental case study where standard loss segregation procedures for induction motors are performed with a two-phase smooth solid ...
Carlos A. C. Wengerkievicz +4 more
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ISO efficiency curves of a two-phase hybrid stepping motor [PDF]
, 2010 Stepping motors are used in numerous applications because of their low manufacturing cost and simple speed control. It is well known that their energetic efficiency is low but actual values are typically not available.
Cottyn, Johannes +8 more
core +1 more source
Energies, 2019 Power electronic development determines the introduction of nonlinear devices in electric power systems. Introduction of nonlinear devices increase current harmonics in transmission and distribution power systems.
Jorge Enrique Carrión González +5 more
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Computation of Stray Losses in Transformer Bushing Regions Considering Harmonics in the Load Current
Applied Sciences, 2020 The presence of harmonics in the load current considerably increases stray losses in electric transformers. In this research paper, a new model for computing the electromagnetic field (EMF) and eddy current (EC) losses in transformer tank covers is ...
Sohail Khan +5 more
doaj +1 more source