Cross magnetizing effect
WebJan 1, 2024 · Detailed Solution. Compensating winding are used in DC machines to neutralize the cross magnetizing effect of armature reaction. Cross magnetizing effect changes with load current and it results in shifting of the magnetic neutral axis. The machines which are subjected to large changes in load will experience the sudden shift … WebJan 14, 2015 · The cross-magnetizing effect of armature reaction may cause trouble in d.c. machines subjected to large fluctuations in load. In order to neutralize the cross magnetizing effect of armature reaction, a …
Cross magnetizing effect
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WebJan 2, 2024 · What is cross magnetizing effect in alternator? It has two undesirable effects, either it distorts the main field, or it reduces the main field flux or both. They … Web(a) cross-magnetizing effect. (b) demagnetizing effect. (c) both of the demagnetizing and cross-magnetizing effects. (d) armature reaction MMF under the pole faces and avoid …
WebApr 1, 1996 · An analytical model of the cross-magnetizing effect in saturated synchronous machines is proposed in which a second-order polynomial function is used …
WebOct 12, 2024 · cross magnetizes or distorts the main flux(Cross magnetization effect) We can also see this armature reaction effect in … WebApr 13, 2024 · Saturation is the phenomenon that occurs when the magnetic flux density in a material reaches its maximum value and cannot increase further, even if the magnetizing force increases. This causes...
WebArmature reaction at 90° to the main field is called as _____ Demagnetizing mmf Cross-magnetizing mmf Anti-magnetizing mmf Magnetizing mmf. dc machines Objective type Questions and Answers. E-PolyLearning: ... Due to the effect of armature reaction in DC machine, the flux per pole and generated voltage _____ and _____ respectively. ...
WebFeb 3, 2024 · The cross-magnetizing effect of the armature reaction can be reduced by following methods. By making the main field ampere-turns larger compared to the … free baitcasting reelsWebThe parameters which represent this cross-magnetizing effect are defined and techniques for determining these parameters are proposed. In these techniques, there is no need for … bloc gymWebJun 6, 2024 · 1 Show Explanation Ques.5. In the case of Zero Power factor leading load on the alternator, the effect of armature reaction is To demagnetize To increase induced EMF To cross -Magnetize To … bloch advocatuurWeb1) The armature reaction causes the distortion in main field flux. This can be reduced if the reluctance of the path of the cross-magnetizing field is increased. The armature teeth … free baker\u0027s solitaire card gamesWebMar 30, 2024 · The effect of armature reaction can be reduced by following methods. a) By using compensating winding. b) By using commutation poles or inter-poles. c) By reducing the cross-section of … bloch ag fruthwilenWebFeb 24, 2014 · With the brushes in the G.N.A. position, there is only cross-magnetizing effect of armature reaction. However, when the brushes are shifted from the G.N.A. position, the armature reaction will have both … bloch ag arlesheimWebThe effect of armature (stator) flux on the flux produced by the rotor field poles is called armature reaction. It depends on the power factor i.e. the phase relationship between the terminal voltage and armature current. At lagging power factor load, the armature reaction is partly demagnetizing and partly cross-magnetizing; At zero power ... bloch activewear