Cross magnetizing effect
WebCross-magnetizing Effect A phase of armature interference. The current in an armature of a dynamo or motor is such as to develop lines of force approximately at right angles to … WebMar 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 …
Cross magnetizing effect
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WebFeb 24, 2012 · They deteriorate the performance of the machine. When the field gets distorted, it is known as a cross magnetizing effect. And when the field flux gets … 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. ...
WebMar 27, 2016 · Content • Armature reaction • Demagnetizing and Cross-magnetizing Conductors • Compensating Windings • Commutation • Methods of Improving Commutation 3. Armature reaction • The effect of magnetic field set up by armature current on the distribution of flux under main poles of a generator. • It has two effects 1. 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 …
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 deteriorate the performance of the machine. When the field gets distorted, it is known as a cross magnetizing effect. WebMar 9, 2024 · Since vector control method are based on the measured voltages and currents, estimated parameters include the effect of saturation and cross-coupling …
WebThe cross-magnetizing effect in both the d- and q-axis in a small salient-pole machine was measured. Two simple equations describing the cross-magnetizing effec Experimental …
WebAug 13, 2024 · This opposition of armature flux on the main field flux is known as armature reaction. The armature reaction has two undesirable effects. The first is it reduces the … economically friendly swimsuitsWebJan 17, 2024 · This distortion effect by the armature conductors is known as cross-magnetising armature conductors or a distorting component … computer with best graphicsWebCross magnetizing effect :- it cross magnetizes (distorts)the distribution of the main field flux (øf). This leads to the load commutation process. The commutation process will takes place with sparking ( flash over) the so … computer with artificial intelligenceWebThe 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 ... economically homelessWebJan 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 … computer with built in fidgetWebTheir function is to neutralize the cross magnetizing effect of armature reaction. In the absence of compensating windings, the flux will be suddenly shifting backward and … economically healthyWeb(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 … computer with big screen