Rotating Machines

Rotating Machines:

2 Pole DC Machine : Figure 5.13 shows a 2 Pole DC Machine Diagram with a single coil rotating armature. It may …


Current sheet Concept : Current sheet Concept – It was seen above that a distributed winding gives rise to a stepped mmf …


DC Machine Armature Winding : With reference to the single-coil elementary DC Machine Armature Winding of Figs 5.13 and 5.14(a) which shows …


Distributed Winding : Distributed Winding – It may be seen from Eq. (5.7) that the flux/pole is limited by the machine dimensions …


Electric Motor Characteristics : The machine and the load are the two components of an electro-mechanical energy-conversion system, and the Electric Motor …


Emf Generator of AC Winding : Emf Generator of AC Winding – The B-wave of a synchronous machine (in general multi-polar) assumed …


Harmonic Analysis in Distributed Winding : The flux density wave of a synchronous machine is never exactly sine wave. Because of odd …


Magnetic Flux Leakage in Rotating Machines : The Magnetic Flux Leakage in rotating machines is that flux which links only the stator …


MMF of AC Distributed Winding : It has been seen earlier that the armature what-when-how.comof a practical machine has distributed winding wound …


Principle of Induction Machine : Principle of Induction Machine has not been introduced so far. Consider a cylindrical rotor machine with both …


Rating and Loss Dissipation : The Rating and Loss Dissipation of a synchronous generator is its operating voltage, frequency, speed and kVA/MVA …


Rotating Electrical Machines : We Know that electromechanical energy conversion takes place whenever a change in flux is associated with mechanical motion. …


Rotating Electrical Machines Losses and Efficiency : Rotating Machines Losses Classification – The Losses and Efficiency of a transformer have been …


Rotating Magnetic Field : Rotating Magnetic Field – It was seen earlier that the sinusoidal current in any phase of an ac …


Short Pitch Coil : Short Pitch Coil – So far it was assumed that the stator coils are full-pitched (a span of …


Synchronous Machine Torque Equation : Figure 5.36 shows a Synchronous Machine Torque Equation with a round rotor. The rotor is initially stationary …


Synchronous Machine Working Principle : Figure 5.2 shows the simplified version of an ac Synchronous Machine Working Principle with a 2-pole field …


Three Phase Synchronous Generator : Practical synchronous generators are always of the 3-phase kind because of the well-known advantages of a 3-phase …


Torque in Round Rotor Machine : Torque in Round Rotor Machine – When the stator and rotor windings of a machine both …


Two layer Transformer Winding : One important and commonly used way of neatly arranging the end connection of coils in a winding …