In this motor, carbon brushes and commutators are present. In this motor, brushes, and commutators are not present. The input supply of dc motor is direct current The input supply of ac motor is alternating current These motors are available in two types like brushes & brushes motors. These are classified into two types like synchronous & induction motors. The difference between the AC motor and the DC motor includes the following.ĪC motor is an electric device which is driven through an ACĭC motor is one kind of rotatory motor used to change the energy from DC to mechanical. #Motor winding formula in hindi pdf series#of conductors within series for each lane The voltage produced (E) can be decided with the no.of armature conductors within series I any single lane among the brushes thus, the whole voltage producedĮ = standard voltage for each conductor x no. The standard value of produced voltage for each conductor Thus the time for a single armature revolution is a 1/n sec. The voltage produced for each conductor = flux slash for each revolution in WB / Time taken for a single revolution within secondsĪs ‘n’ revolutions are completed within a single second and 1 revolution will be completed within a 1/n second. of armature conductor within series for each parallel laneĪs the flux for each pole is ‘Φ’, every conductor slashes a flux ‘PΦ’ within a single revolution. of parallel lane throughout the armature among the opposite polarity brushes. N is the rotation speed for an armature in the revolution for each secondĪ is the no. Z is the total number of conductors within the armature Let Φ is the useful flux for every pole within webers In the motor, the emf of rotation can be called as counter or back emf, and Er=Eb. In a generator, the e.m.f of rotation can be called the generated emf, and Er=Eg. The DC machine e.m.f can be defined as when the armature in the dc machine rotates, the voltage can be generated within the coils. If the shunt-field is allied in parallel by the armature only, then the machine can be named as the ‘short shunt compound machine’ & if the shunt-field is allied in parallel by both the armature as well as series field, then the machine is named as the ‘long shunt compound machine’. The connection of the compound machine can be done in two ways. The series winding of the machine includes few twists of a huge cross-sectional region, as well as the shunt windings, include several fine wire twists. The two windings are carried-out with every machine pole. Compound WoundĪ compound machine includes both the series as well as shunt fields. As series field winding gets the armature current, as well as the armature current is huge, due to this the series field winding includes few twists of wire of big cross-sectional region. Machines, the field coils are allied in series through the armature. #Motor winding formula in hindi pdf generator#As the shunt field gets the complete o/p voltage of a generator otherwise a motor supply voltage, it is normally made of a huge number of twists of fine wire with a small field current carrying. In Shunt wound DC Machines, the field coils are allied in parallel through the armature. In Separately Excited DC Machine, a separate DC source is utilized for activating the field coils. The principal kinds of DC machines are classified into four types which include the following. In the self-excitation type of dc machine, the flow of current throughout the field-winding is supplied with the machine. In a separate excitation type of dc machine, the field coils are activated with a separate DC source. The excitation of the DC machine is classified into two types namely separate excitation, as well as self-excitation. The lamination is used to decrease the loss because of the eddy current. The materials used in this core are permeability low-reluctance materials like iron otherwise cast. It provides the low-reluctance path toward the flux generated with field winding. The armature conductor is located in these slots. Armature CoreĪrmature core includes a huge number of slots within its edge. The material used for field windings is copper. Whenever current is supplied through field winding than it electromagnetics the poles which generate required flux. In this, the windings are wounded in the region of pole core & named as field coil. The materials used to build pole shoe is cast iron otherwise cast steed, and also used annealed steel lamination to reduce the loss of power because of eddy currents. Because of this region, flux can be spread out within the air-gap as well as extra flux can be passed through the air space toward armature. Pole shoe in the DC machine is an extensive part as well as to enlarge the region of the pole.
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