Overall Efficiency of DC Motor Calculator

✖Mechanical Power is the product of a force on an object and the object's velocity or the product of torque on a shaft and the shaft's angular velocity.ⓘ Mechanical Power [P_m]			+10% -10%
✖Input Power is defined as the total power supplied to the electrical dc motor from the source which is connected to it.ⓘ Input Power [P_in]			+10% -10%

✖Overall Efficiency Electrical is defined as the combined efficiency of all the systems inside and electrical machine.ⓘ Overall Efficiency of DC Motor [η_o]

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Overall Efficiency of DC Motor Solution

STEP 0: Pre-Calculation Summary

Formula Used

Overall Efficiency = Mechanical Power/Input Power
η_o = P_m/P_in
This formula uses 3 Variables

Variables Used

Overall Efficiency - Overall Efficiency Electrical is defined as the combined efficiency of all the systems inside and electrical machine.
Mechanical Power - (Measured in Watt) - Mechanical Power is the product of a force on an object and the object's velocity or the product of torque on a shaft and the shaft's angular velocity.
Input Power - (Measured in Watt) - Input Power is defined as the total power supplied to the electrical dc motor from the source which is connected to it.

STEP 1: Convert Input(s) to Base Unit

Mechanical Power: 36 Watt --> 36 Watt No Conversion Required
Input Power: 78 Watt --> 78 Watt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

η_o = P_m/P_in --> 36/78

Evaluating ... ...

η_o = 0.461538461538462

STEP 3: Convert Result to Output's Unit

0.461538461538462 --> No Conversion Required

FINAL ANSWER

0.461538461538462 ≈ 0.461538 <-- Overall Efficiency

(Calculation completed in 00.020 seconds)

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Created by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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Osmania University (OU), Hyderabad

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< DC Motor Characteristics Calculators

Machine Construction Constant of DC Motor

LaTeX Go Constant of Machine Construction = (Supply Voltage-Armature Current*Armature Resistance)/(Magnetic Flux*Motor Speed)

Back EMF Equation of DC Motor

LaTeX Go Back EMF = (Number of Poles*Magnetic Flux*Number of Conductors*Motor Speed)/(60*Number of Parallel Paths)

Armature Current given Electrical Efficiency of DC Motor

LaTeX Go Armature Current = (Angular Speed*Armature Torque)/(Supply Voltage*Electrical Efficiency)

Supply Voltage given Electrical Efficiency of DC Motor

LaTeX Go Supply Voltage = (Angular Speed*Armature Torque)/(Armature Current*Electrical Efficiency)

Overall Efficiency of DC Motor Formula

LaTeX Go

Overall Efficiency = Mechanical Power/Input Power
η_o = P_m/P_in

What is the definition of efficiency?

Efficiency signifies a peak level of performance that uses the least amount of inputs to achieve the highest amount of output. Efficiency requires reducing the number of unnecessary resources used to produce a given output including personal time and energy.

How to Calculate Overall Efficiency of DC Motor?

Overall Efficiency of DC Motor calculator uses Overall Efficiency = Mechanical Power/Input Power to calculate the Overall Efficiency, The Overall Efficiency of DC Motor formula is defined as the ratio of the mechanical output to the electrical input. Overall efficiency looks at the entire system from the initial input to the final output. Overall Efficiency is denoted by η_o symbol.

How to calculate Overall Efficiency of DC Motor using this online calculator? To use this online calculator for Overall Efficiency of DC Motor, enter Mechanical Power (P_m) & Input Power (P_in) and hit the calculate button. Here is how the Overall Efficiency of DC Motor calculation can be explained with given input values -> 0.461538 = 36/78.

FAQ

What is Overall Efficiency of DC Motor?

The Overall Efficiency of DC Motor formula is defined as the ratio of the mechanical output to the electrical input. Overall efficiency looks at the entire system from the initial input to the final output and is represented as η_o = P_m/P_in or Overall Efficiency = Mechanical Power/Input Power. Mechanical Power is the product of a force on an object and the object's velocity or the product of torque on a shaft and the shaft's angular velocity & Input Power is defined as the total power supplied to the electrical dc motor from the source which is connected to it.

How to calculate Overall Efficiency of DC Motor?

The Overall Efficiency of DC Motor formula is defined as the ratio of the mechanical output to the electrical input. Overall efficiency looks at the entire system from the initial input to the final output is calculated using Overall Efficiency = Mechanical Power/Input Power. To calculate Overall Efficiency of DC Motor, you need Mechanical Power (P_m) & Input Power (P_in). With our tool, you need to enter the respective value for Mechanical Power & Input Power and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Overall Efficiency?

In this formula, Overall Efficiency uses Mechanical Power & Input Power. We can use 1 other way(s) to calculate the same, which is/are as follows -

Overall Efficiency = (Input Power-(Armature Copper Loss+Field Copper Losses+Power Loss))/Input Power

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