For the design we assuming following parameters 1) winding: LAP 2) simplex multiplicity 3) Number of slots =16 4) Number of poles = 4
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For the design we assuming following parameters
1) winding: LAP
2) simplex multiplicity
3) Number of slots =16
4) Number of poles = 4
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- Construct a Coil Winding (Armature winding) detailed, with these following descriptions.... 4 poles, 26 conductors, double layer, simplex WAVE windingA thicker wire is used in the DC series field winding than DC shunt field winding in DC machines. * O because it carries the load current. O to prevent mechanical vibrations. O to provide strength. O to produce large flux. The speed of a DC motor can be changed by varying - armature resistance circuit O flux per pole O voltage source O all of aboveFor 6 polar D.C machine armature has 36 number of slots and the type of winding is a double layer simplex lap winding. a. How many coils are present? b. What is the coil span in terms of number of slots? c. If each coil has 4 turns, then what is the total number of armature conductors presents? d. How many parallel paths will be their in the armature? e. Altogether how many brushes will be their?
- For this Assessment, design an armature winding with the following information: 1. your choice of winding, either Lap or wave 2. your choice of multiplicity (simplex, duplex, etc) 3. your choice of the number of slots in the armature and commutator (note that the armature slots is equal to the number of commutator bars) 4. your choice of number poles greater than two poles ( this should be an even number) include a table for the connection diagram Back Connection Front Connection 61 draw the winding diagramDifferentiate the two types of armature windings in DC machines: lap winding and wave winding.For 4 pole d.c machine armature winding with a double layer progressive simplex wave winding with 23 number of slots answer the following: a How many coils are present? b What is the coil span in terms of number of slots? c What is commutator pitch in terms of commutator segments? d How many coils are there between two consecutive commutator segments? e How many parallel paths are present?
- Q2) In DC machine, the speed is 800 RPM, the flux per pole is 2 m wb, and it has a Lap winding armature with 6 coils (4 turns conductor per coil) . The DC machine has 2 poles and armature draws lc= 5.5 A. If the winding redesigned as wave winding, find the EA , Tem and Pem and explain what will happen when we change the design from lap to wave winding connection.a. Explain the terms, coil span, coil pitch, short pitching and chording of coils.b. Equalizer rings are needed in lap wound dc machines not in wave wound explain the reason andthe use of equalizer rings with the help of an example.c. What are dummy coils?d. What is the purpose of using short-pitched coils in ac windings?For a 4-pole dc armature with 28 slots and 8 coil-sides per slot, find the winding pitches and the commutator pitch for a wave winding. What is the distance between brushes in terms of commutator segments?
- Design the Lap winding diagram of DC machine based on the following parameters: • Number of Loops = 12 • Number of Poles = 4 • Winding Type = Progressive Duplex Lap Winding %3D14/. The purpose of brushes in a dc machine is__________. to change ac to dc signal to remove the losses in machine to collect voltage from windings avoid spark for currentthe basic requirement of DC armature winding is that it must be: a) a closed one b) a lap winding c) a wave winding d) either (b) or (c)