Electrical Machine winding diagram(AC & DC) | Complete Winding Basics_Part-1 | (Subtitles included)

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Get the Online Practice Tests just @ 199 : https://tests.pi2.in/ These definitions are valid for both AC & DC Machine winding. Progressive & Retrogressive; singly re-entrant, doubly re-entrant; simplex & Duplex, we have discussed all these in this video.
In AC Machines also we will have Lap winding and Wave winding.

Pole Pitch definition at: 04:30
Types of windings and Back pitch, winding pitch: 08:27
Lap winding structure at: 11:30
Progressive vs retrogressive(lap) at: 12:26
Why winding pitch named so at: 14:04
Progressive vs retrogressive(wave) at: 14:45
Wave winding Y_w calculation at: 16:45
Simplex vs Multiplex winding at: 20:20
Singly re-entrant vs doubly re-entrant at: 21:40
single layer vs Double Layer at: 23:10

Why coil span = Pole Pitch:    • pitch factor and distribution factor ...  
Double Layer winding | Complete Winding Basics_Part-2:    • Complete concept of winding diagram |...  

Closed type windings: In this type of winding there is a closed path around the armature or stator. Starting from any point, the winding path can be followed through all the turns and starting point can be reached. Such windings are used in DC machines.

Open windings: There is no closed path in the windings. Such windings are used in AC machines(star connected).

TYPES AND SHAPES OF WINDING WIRES:
The winding wires used in electrical motors are classified as follows.
1. Round Wires: It has thin and thick conductors and are used in semi-closed slot type motors and mush winding rotors. It is wounded in reels and available in Kilograms.
2. Rectangular straps: It is used in open type slot motors. These conductors are available as long straps in meters. They are used in the following places. a) Low voltage motor windings. b) Used as conductor in high current motor. c) Series field motor winding coils.

Commutator pitch: The distance between the two commutator segments to which the two ends of a coil are connected is called commutator pitch and is designated as yc and is measured in terms of commutator segments.


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