Results 161 to 170 of about 749 (217)

Measurement of Stray-Load Loss in Induction Motors

Transactions of the American Institute of Electrical Engineers, 1945
This paper is written to present test data confirming the accuracy of the reverse-rotation test for stray-load loss24 in polyphase induction motors. This method is the most convenient yet proposed for direct measurement of stray-load losses in squirrel-cage motors, and it is recommended that it be included in the AIEE Test Code for Polyphase Induction ...
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When loads stray: Evaluation of Different Measurement Methods to Determine Stray Load Losses in Induction Machines

IEEE Industrial Electronics Magazine, 2007
The efficiency data provided by manufacturers are measured or calculated according to different national and international standards. These standards use different means to incorporate the stray load losses; thus the efficiency values obtained from different testing standards can differ by several percent. This leads to problems in competition and to a
M. Aoulkadi, A. Binder
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Induction motor stray losses and inter-bar currents

2008 18th International Conference on Electrical Machines, 2008
This paper presents measured bar-to-lamination contact resistance values for eight, 10 hp cast copper induction motors. The contact resistance values are compared to full load stray loss values determined using the IEEE input-output method. The stray losses generally decrease with decreasing contact resistance.
Steven C. Englebretson, James L. Kirtley
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Stray loss in solid-rotor induction machines

IEE Proceedings B Electric Power Applications, 1982
The paper presents measurements and calculations of the stray loss in several solid-rotor versions of British Rail's tubular-axle induction motor (TAIM) of 150 kW capacity. The use of a large airgap and of narrow slot openings as means of reducing the loss to manageable levels are investigated, and it is found that the large gap approach is more ...
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Effects of Stray Inductance on Hard-Switched Switched Capacitor Converters

IEEE Transactions on Power Electronics, 2014
Switched capacitor (SC) converters are becoming quite popular for use in DC-DC power conversion. The concept of equivalent resistance in SC converters is frequently used to determine the conduction losses due to the load current. A variety of methodologies have been presented to predict the equivalent resistance in hard-switched SC converters.
Lukas Muller, Jonathan W. Kimball
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MOSFET switching behaviour under influence of PCB stray inductance

IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting, 2002
An analytical expression is derived for the power MOSFET turn-off overvoltage, including the influence of PCB interconnects. The entire PCB is modeled by means of the partial element equivalent circuit (PEEC) method. The PCB model associated with a simple MOSFET model permits computation of maximum overvoltage with good precision.
W. Teulings, J.L. Schanen, J. Roudet
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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
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Study on Influence of Stray Inductance in Micro EDM Using Electrostatic Induction Feeding Method

Key Engineering Materials, 2010
In the micro EDM method by electrostatic induction feeding, a pulse generator is coupled to the tool electrode by a capacitor, since the negative influence of the stray capacitance in the circuit can be eliminated, and the discharge energy per pulse can be minimized, thereby realizing discharge craters of nanometer order.
Xiao Dong Yang, Yong Wan, Fu Qiang Hu
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Effect of stray inductance on capacitive-voltage divider

Journal of Applied Physics, 1986
The effect of stray circuit inductance on the response of a capacitive-voltage divider to fast-rising voltage pulses is investigated. Results obtained from the analysis of the capacitive divider’s equivalent circuit indicate an upper-frequency limit of only 1% of the natural frequency of the circuit.
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Investigation, Evaluation, and Optimization of Stray Inductance in Laminated Busbar

IEEE Transactions on Power Electronics, 2014
Wiring inductance has a critical effect on electrical, thermal, and electromagnetic compatibility (EMC) performances in inverters. Therefore, the low stray inductance laminated busbar, as a state-of-the-art pathway interface, is widely used in high-power inverters.
Cai Chen, Xuejun Pei, Yu Chen, Yong Kang
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