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Q: How will the efficiency of a DC compound motor change within the range of no load or rated load?
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What is motor efficiency?

80%


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EFF1 is a high efficiency motor. EFF2 is a standard efficiency motor.


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A motor produces less mechanical energy than the energy it uses because the motor what?

Yes this is what we call efficiency of the motor. We give 100 but the motor in turn gives 40, so its efficiency is 40%


A compound motor is flat compound when?

Its flattened


What motor is used in sprinkler irrigation systems?

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Efficiency of motor?

I measure the efficiency of an internal combustian engine by doing (bhp)/((displacement)*(rpm))


Which motor is superior in efficiency and the most extensively used of all types of electric motors?

Motor efficiency depends on the motor size and how much it is loaded. You get the best efficiency above 75% of the rated load for that motor. Note the table below: Horsepower Standard Premium Efficiency Efficiency% Efficiency% 1 --- 78.0 --- 82.5 2 --- 78.5 --- 84.0 5 --- 84.0 --- 89.6 10 --- 84.0 --- 91.1 15 --- 87.5 --- 91.7 25 --- 90.2 --- 93.0 50 --- 91.7 --- 94.1 100 --- 91.7 --- 95.0 250 --- 94.1 --- 95.8


How much energy does a motor convert to heat?

You can calculate the quantity of energy that a motor turns into heat with either one of these equations: Heat energy = ( 1 - efficiency of the motor) x (energy input to the motor) or Heat energy = ( 1 - efficiency of the motor) x (power input to the motor) x (running time)


Efficiency of a motor?

ratio of energy output to energy input.