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RICH DAD POOR DAD BOOK REVIEW This is amazing book. • Explodes the myth that you need to earn a high income to become rich • Challenges the belief that your house is an asset • Shows parents why they can't rely on the school system to teach their kids about money • Defines once and for all an asset and a liability • Teaches you what to teach your kids about money for their future financial success It's been nearly 25 years since Robert Kiyosaki’s Rich Dad Poor Dad first made waves in the Personal Finance arena. It has since become the #1 Personal Finance book of all time... translated into dozens of languages and sold around the world. Rich Dad Poor Dad is Robert's story of growing up with two dads — his real father and the father of his best friend, his rich dad — and the ways in which both men shaped his thoughts about money and investing. The book explodes the myth that you need to earn a high income to be rich and explains...
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Hey, My Name is Md Kaif and I am from Bihar, India. ![]()
I am an Electrical Engineer. 😊
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Wave Winding in detail
Wave winding We know that, Y c is commutator pitch Here Y c ≠ 1 but Y c ≈ 2S/P Assume S=16 and P=4. Coil span = S/P =16/4 =4, Y c = 8 The first coil is (1-5') and terminated on commutator 1 and 9. The second coil (9-13') to be connected in series with the first and to be terminated on commutator segment (9 + 8 = 17). Since there are only 16 commutator segments so 17 is identical to 1. Hence, we terminate where we started and cannot connect any more coils in series. Our inability to complete the winding, will persist till 2S is a multiple of P. So, we modify the expression for Y c = 2(S ± 1)/P No. of poles, P = 4 No. of slots, S = 17 Winding pitch, Y c = 2(S+1)/P choosing +1 for progressive winding Y c = 2(17+1)/4 = 9 Coil span = S/P = 4 First segment (1-5') starts from 1 and ends at 20, where second coil starts and ends on commutator segment-2 Between any two consecutive commutator segments (P/2) coils will be present winding progresses like a wave. H...
INTER-POLES
Inter-poles Inter-poles are long but narrow poles placed in inter-polar region and has the polarity of succeeding ( incoming ) poles for generator action and preceding poles for motor action. The inter-poles winding is designed to neutralize armature MMF in inter-polar region. It has an additional duty to create an inter-polar flux density that induces a commutation voltage in the coil undergoing commutation such that it cancels reactance voltage of the coil. The inter-pole winding carries the armature current as it is connected in series with the armature winding. The presence of inter-poles ensures spark -less linear commutation. The inter-pole is kept narrow so that influence is restricted to coil undergoing commutation only and does not spread to other neighboring coils. However bar is winder at bottom to prevent saturation and improve response. Inter-poles work satisfactorily irrespective of the load, the direction of rotation and mode of operation of...
Armature winding in detail
Armature Winding Armature winding is always closed and double layer type closed means all winding are connected in series to form a closed circuit. the junctions of two coils terminated on copper segment called as commutator segments. A coil has two sides occupying distinct specified slots. To maximum induced emf, the spacing between two ends should be kept at 180° electrical. it means if one side is under North Pole then other should be under South Pole. Coil span spacing between the two sides of coil. The spacing is expressed in terms of number of slots between the sides. if S is the total number of slots and P is the total no. of poles then coil span is S/P E.g.: For 20 slots, 4 poles, coil span=5, if one side of a coil is placed in slots 3, then other end must occupy slot (3+5=8). A double layer winding means that each slot has two coil sides (belonging to 2 different coils). one coil is placed in lower portion of slot and other above it. if S=20, P=4, coil span=5, if...

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