FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Overall Efficiency of DC Motor given Input Power Formula

GoOverall Efficiency of DC Motor Formula

Fx Copy

LaTeX Copy

Overall Efficiency Electrical is defined as the combined efficiency of all the systems inside and electrical machine. Check FAQs

η o = \frac{P in - (P cu(a) + P cu(f) + P loss)}{P in}

η_o - Overall Efficiency?P_in - Input Power?P_cu(a) - Armature Copper Loss?P_cu(f) - Field Copper Losses?P_loss - Power Loss?

Overall Efficiency of DC Motor given Input Power Example

With values

With units

Only example

Here is how the Overall Efficiency of DC Motor given Input Power equation looks like with Values.

Here is how the Overall Efficiency of DC Motor given Input Power equation looks like with Units.

Here is how the Overall Efficiency of DC Motor given Input Power equation looks like.

0.4179 = \frac{78 - (1.25 + 2.81 + 41.34)}{78}

0.4179 = \frac{78W - (1.25W + 2.81W + 41.34W)}{78W}

0.4179 = \frac{78 - (1.25 + 2.81 + 41.34)}{78}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Electrical » Category

Machine » fx Overall Efficiency of DC Motor given Input Power

Overall Efficiency of DC Motor given Input Power Solution

Follow our step by step solution on how to calculate Overall Efficiency of DC Motor given Input Power?

FIRST Step Consider the formula

η o = \frac{P in - (P cu(a) + P cu(f) + P loss)}{P in}

Next Step Substitute values of Variables

∴

η o = \frac{78W - (1.25W + 2.81W + 41.34W)}{78W}

Next Step Prepare to Evaluate

∴

η o = \frac{78 - (1.25 + 2.81 + 41.34)}{78}

Next Step Evaluate

∴

η o = 0.417948717948718

LAST Step Rounding Answer

∴

η o = 0.4179

Overall Efficiency of DC Motor given Input Power Formula Elements

Variables

Overall Efficiency

Overall Efficiency Electrical is defined as the combined efficiency of all the systems inside and electrical machine.

Symbol: η_o

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Overall Efficiency

Input Power

Input Power is defined as the total power supplied to the electrical dc motor from the source which is connected to it.

Symbol: P_in

Measurement: PowerUnit: W

Note: Value can be positive or negative.

Formulas to find Input Power

Armature Copper Loss

The armature copper loss is variable and depends upon the amount of loading of the machine.

Symbol: P_cu(a)

Measurement: PowerUnit: W

Note: Value can be positive or negative.

Formulas to find Armature Copper Loss

Field Copper Losses

Field Copper Losses is variable and depends upon the amount of loading of the machine.

Symbol: P_cu(f)

Measurement: PowerUnit: W

Note: Value can be positive or negative.

Formulas to find Field Copper Losses

Power Loss

Power Loss is the loss of the electrical power network supply to an end user.

Symbol: P_loss

Measurement: PowerUnit: W

Note: Value can be positive or negative.

Formulas to find Power Loss

Other Formulas to find Overall Efficiency

Go Overall Efficiency of DC Motor

η o = \frac{P m}{P in}

Other formulas in DC Motor Characteristics category

Go Machine Construction Constant of DC Motor

K f = \frac{V s - I a \cdot R a}{Φ \cdot N}

Go Back EMF Equation of DC Motor

E b = \frac{n \cdot Φ \cdot Z \cdot N}{60 \cdot n ||}

Go Supply Voltage given Electrical Efficiency of DC Motor

V s = \frac{ω s \cdot τ a}{I a \cdot η e}

Go Armature Current given Electrical Efficiency of DC Motor

I a = \frac{ω s \cdot τ a}{V s \cdot η e}

How to Evaluate Overall Efficiency of DC Motor given Input Power?

Overall Efficiency of DC Motor given Input Power evaluator uses Overall Efficiency = (Input Power-(Armature Copper Loss+Field Copper Losses+Power Loss))/Input Power to evaluate the Overall Efficiency, The Overall Efficiency of DC Motor given Input Power is defined as the ratio of the mechanical output to the electrical input. Overall efficiency looks at entire system from the initial input to the final output. Overall Efficiency is denoted by η_o symbol.

How to evaluate Overall Efficiency of DC Motor given Input Power using this online evaluator? To use this online evaluator for Overall Efficiency of DC Motor given Input Power, enter Input Power (P_in), Armature Copper Loss (P_cu(a)), Field Copper Losses (P_cu(f)) & Power Loss (P_loss) and hit the calculate button.

FAQs on Overall Efficiency of DC Motor given Input Power

What is the formula to find Overall Efficiency of DC Motor given Input Power?

The formula of Overall Efficiency of DC Motor given Input Power is expressed as Overall Efficiency = (Input Power-(Armature Copper Loss+Field Copper Losses+Power Loss))/Input Power. Here is an example- 0.744103 = (78-(1.25+2.81+41.34))/78.

How to calculate Overall Efficiency of DC Motor given Input Power?

With Input Power (P_in), Armature Copper Loss (P_cu(a)), Field Copper Losses (P_cu(f)) & Power Loss (P_loss) we can find Overall Efficiency of DC Motor given Input Power using the formula - Overall Efficiency = (Input Power-(Armature Copper Loss+Field Copper Losses+Power Loss))/Input Power.

What are the other ways to Calculate Overall Efficiency?

Here are the different ways to Calculate Overall Efficiency-

Overall Efficiency=Mechanical Power/Input Power

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Overall Efficiency of DC Motor given Input Power Formula

​GoOverall Efficiency of DC Motor Formula

Overall Efficiency of DC Motor given Input Power Example

Overall Efficiency of DC Motor given Input Power Solution

Overall Efficiency of DC Motor given Input Power Formula Elements

Other Formulas to find Overall Efficiency

Other formulas in DC Motor Characteristics category

How to Evaluate Overall Efficiency of DC Motor given Input Power?

FAQs on Overall Efficiency of DC Motor given Input Power

Variable Name

GoOverall Efficiency of DC Motor Formula