A constru is required to lift a load of 5000 kg from ground to a height of oom in 308. The hoisting cable is wound around a 0.9m (diameter) drum, which is driven by a 3-ph, 575 V motor via a 10: 1 gearbox. The motor has an average efficiency of 94% and a power factor of 92%. The efficiency of the gearbox is 98%.

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Q: +Vs R₁ = 3R R₂=1-22 Vs = 12 V Is = 4A B₂ Is + option 6v ча 2v 80 पण T

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Q: Given the continuous time signal x₁ (t)=(t+1)·(u(t−2)−u(t−4)) draw the signal x₂ (t) = x₁(-t-1).

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Q: find out the stability of the following closed loop transfer function by using routh hurwitz criteon

A: Routh-Hurwitz criterion:-

Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.