concentrated winding:-slots/pole/pshas=1 , i.e equal to 1
distributed winding:slots/pole/phase>1 , i.e grater than 1
a winding is called concentrated winding when the number of slots per pole per phase is fractional
An important type of winding wire
difference between single layer and double winding
What do you think a countweight does for a mine winding system.
Main difference is that , that the auto_t is electrical based while the other t is based on mutual inductance.
In the case of a capacitor-start/run single-phase induction motor, the main field is provided by the main (running) winding, and the capacitive branch is the auxiliary winding. In the case of a capacitor-start motor, the main winding is the running winding and the auxiliary winding is the starting winding.
Both lap winding and wave winding are found in the use of DC generators. The main difference is as follows: lap winding is high current, low voltage, and wave winding is low current, high voltage.
IN DC MOTORThere are 2 types of windings:1. Field windingOn poles core which are on stator body.These are always concentrated type.2. Armature windingOn rotor on motor may be simplex or multiplex and lap or wave connected.IN AC (Synchronous ) MOTOR3-phase star or delta connected on stator (armature ) suppliedby 3 phase may be concentrated or distributed (usually preferred) .Rotor (field ) has concentrared in salient pole type nd distributed in cylindrical type supplied by DC supply.IN AC ( Induction ) MOTOR3-phase (star or delta connected) distributed winding on stator and wound rotor .In squirrel cage rotor short circuted copper bars are used.
the purpose of the capacitor is to create a phase difference between main winding current and axillary winding. this would produce a rotating constant magnetic field which is required to produce the torque.
A voltage appears between the terminal points of the secondary winding
The 'input' side of a transformer is called its 'primary' side, whereas the 'output' side is termed its 'secondary' side. The ratio of its secondary to primary voltage is equal to the ratio of the number of turns in the secondary windings to the number of turns in the primary winding. So if, for example, a transformer's secondary winding has twice as many turns as its primary winding, then the secondary winding will produce twice the voltage applied to the primary winding.
The difference between the two transformers is the coil ratios between the primary and secondary windings. A transformer that increases voltage from primary to secondary has more secondary winding turns than primary winding turns and is called a step-up transformer. Conversely, a transformer with fewer secondary windings does just the opposite and is called a step-down transformer.