Results 231 to 240 of about 58,986 (277)

Experimental and simulative investigations on stray capacitances and stray inductances of power modules

2017 19th European Conference on Power Electronics and Applications (EPE'17 ECCE Europe), 2017
This paper presents different experimental methods for measuring parasitic capacitances and inductances of direct copper bond (DBC) based power semiconductor modules. The found parasitics are compared with finite element simulations to evaluate their accuracy. A very good match of the simulated and measured stray capacitances is found.
Georges Engelmann, Stefan Quabeck, Jan Gottschlich, Rik W. De Doncker   +3 more
openaire   +1 more source

Stray Load Loss Test on Induction Machines

Transactions of the American Institute of Electrical Engineers, 1934
A loading-back test has been used for the determination of the stray load losss in polyphase induction machines. This test, which was found to have a high degree of accuracy, enables the various losses to be separated. The application of the test is simple and convenient.
Theodore H. Morgan, Paul M. Narbutovskih
openaire   +1 more source

Investigation on stray inductance of SiC MOSFET module

2017 14th China International Forum on Solid State Lighting: International Forum on Wide Bandgap Semiconductors China (SSLChina: IFWS), 2017
For the past years, high power SiC MOSFET module has been widely applied in industrial drive, power transmission application and high power energy conversion for its superior switching performances. The performance of a commercial available type of three-phase bridge package is investigated to figure out the impact of stray inductance.
Yang Liu, Huai-Yu Ye
openaire   +1 more source

Stray load loss tests on induction machines — II

Electrical Engineering, 1936
A new test method is described for the determination of stray load loss in induction machines. By application to given machines, this method is shown to have an exceptionally high degree of accuracy. Values of stray load loss for the same machines are obtained by other recognized methods and results compared.
Theodore H. Morgan, Victor Siegfried
openaire   +1 more source

Stray losses in squirrel-cage induction motors

Proceedings of the Institution of Electrical Engineers, 1964
The correct understanding of the physical origin of stray losses is essential if machines are to be designed with minimum additional losses.
V. Ahmad, B.J. Chalmers, A.C. Williamson
openaire   +2 more sources

Stray losses in squirrel-cage induction motors

Journal of the Institution of Electrical Engineers, 1963
An article based on a paper with the full title 'Stray losses in squirrel-cage induction motors: validity of the reverse-rotation test method', which is published this month in the Proceedings. The paper has been reserved for reading at a meeting of the Power Division at Savoy Place on a date yet to be arranged in 1964. Dr.
B.J. Chalmers, A.C. Williamson
openaire   +1 more source

Stray-Load Losses in Polyphase Induction Maclines

Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1959
The total stray-load loss of a polyphase induction machine of the squirrel-cage type is given by the formula: WL = WC + WE + WSL1 + WSL2 + WZ + WB + WK (13) where the several items, except Wc, are given by equations 1, 7, 6, 9, 10, and 12. The sum of WE and Wc can be determined separately from the other losses by measuring the input to the stator when ...
P. L. Alger, G. Angst, E. John Davies
openaire   +1 more source

Stray load losses in induction motors: a challenge to academia

Power Engineering Journal, 1997
In the February 1997 issue of Power Engineering Journal, Prof. Stephen Williamson published a short article entitled `Stray losses-a residue of ignorance'. In a paper by the author published at the Lisbon Conference on 'Energy efficiency improvements in electric motors and drives' in October 1996, it was concluded that the subject of stray load losses ...
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Measurement of Stray Load Loss in Polyphase Induction Motors

Transactions of the American Institute of Electrical Engineers, 1932
FOR LACK of a satisfactory method of measurement, no provision is made for stray load losses in the A.I.E.E. standard efficiency tests for induction motors. These losses may amount to from 2 to 5 per cent in squirrel cage motors from 1 to 5 hp. in size, decreasing gradually with increase in motor rating until they are less than 1 per cent for motors of
openaire   +1 more source

Modelling of Stray-Load Loss for Medium Power Induction Motors

IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 2018
In recent years there has been a thrust towards developing high efficiency motors for industrial applications. To design a high efficiency motor, it is necessary to develop models that can estimate the losses in the motor. One of the losses that is difficult to estimate is stray losses.
Rajendra Kumar, Praveen Kumar 0001
openaire   +2 more sources