In lap winding it is seen that
the coils are connected in series .So that the induced voltages are additive,
that is one coil side under north pole is connected by end connections to the
coil side under the south pole. This is in turn is connected in series with
another coil having a coil side under the same north pole as the previous coil.
But in a wave winding coil A has one coil side under the north pole and the
other side under the south pole, coil B is connected in series with coil A.
Coil B is not located under the same poles as coil A but under the next pair of
poles as demonstrated in figure 1. As a sequence coil B and C is under the set
of poles.
Friction is main bad effect of a motor. Friction reduce a motor efficiency. Friction mainly create in a motor for it’s corrosion or speed ratio on spin. In a motor flywheel adjusted in drive wheel. In a gear ratio it mainly depends on gear and flywheel transfer energy on drive wheel. In a car or heavy load carrier vehicle used spring for reduce vibration and friction reduce generally use oil especially used in lubrication. For friction reduce one should firstly should select a metal which is help to reduce corrosion that’s means high resistance corrosion. Brake is also more important issue for a vehicle for it speed is slow down. There are three types of brake such as electromagnetic, disc and drum brake. Kinetic energy change to heat energy a vehicle speed reduce. Most of the car and vehicle use hydraulic brake which based in 6 steps and depends on 6 parts. These six parts are valve, road wheel, pedal, cylinder and boost. Electromagnetic brake is more popular for it’s more fa...
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