FormulaDen.com

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

Rotor Efficiency in Induction Motor Formula

Fx Copy

LaTeX Copy

The efficiency of a system in electronics and electrical engineering is defined as useful power output divided by the total electrical power consumed. Check FAQs

η = \frac{N m}{N s}

η - Efficiency?N_m - Motor Speed?N_s - Synchronous Speed?

Rotor Efficiency in Induction Motor Example

With values

With units

Only example

Here is how the Rotor Efficiency in Induction Motor equation looks like with Values.

Here is how the Rotor Efficiency in Induction Motor equation looks like with Units.

Here is how the Rotor Efficiency in Induction Motor equation looks like.

0.9163 = \frac{14350}{15660}

0.9163 = \frac{14350rev/min}{15660rev/min}

0.9163 = \frac{14350}{15660}

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 Rotor Efficiency in Induction Motor

Rotor Efficiency in Induction Motor Solution

Follow our step by step solution on how to calculate Rotor Efficiency in Induction Motor?

FIRST Step Consider the formula

η = \frac{N m}{N s}

Next Step Substitute values of Variables

∴

η = \frac{14350rev/min}{15660rev/min}

Next Step Convert Units

∴

η = \frac{1502.7285rad/s}{1639.9114rad/s}

Next Step Prepare to Evaluate

∴

η = \frac{1502.7285}{1639.9114}

Next Step Evaluate

∴

η = 0.916347381864622

LAST Step Rounding Answer

∴

η = 0.9163

Rotor Efficiency in Induction Motor Formula Elements

Variables

Efficiency

The efficiency of a system in electronics and electrical engineering is defined as useful power output divided by the total electrical power consumed.

Symbol: η

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Efficiency

Motor Speed

Motor Speed is the speed of the rotor(motor).

Symbol: N_m

Measurement: Angular VelocityUnit: rev/min

Note: Value can be positive or negative.

Formulas to find Motor Speed

Synchronous Speed

Synchronous speed is a definite speed for an alternating-current machine that is dependent on the frequency of the supply circuit.

Symbol: N_s

Measurement: Angular VelocityUnit: rev/min

Note: Value can be positive or negative.

Formulas to find Synchronous Speed

Other formulas in Torque and Efficiency category

Go Armature Current given Power in Induction Motor

I a = \frac{P out}{V a}

Go Field Current using Load Current in Induction Motor

I f = I a - I L

Go Load Current in Induction Motor

I L = I a - I f

Go Rotor Current in Induction Motor

I r = \frac{s \cdot E i}{\sqrt{{R r(ph)}^{2} + {(s \cdot X r(ph))}^{2}}}

How to Evaluate Rotor Efficiency in Induction Motor?

Rotor Efficiency in Induction Motor evaluator uses Efficiency = (Motor Speed)/(Synchronous Speed) to evaluate the Efficiency, Rotor efficiency in Induction Motor is defined as the ratio of the output to that of input in the rotor section of an induction motor. Efficiency is denoted by η symbol.

How to evaluate Rotor Efficiency in Induction Motor using this online evaluator? To use this online evaluator for Rotor Efficiency in Induction Motor, enter Motor Speed (N_m) & Synchronous Speed (N_s) and hit the calculate button.

FAQs on Rotor Efficiency in Induction Motor

What is the formula to find Rotor Efficiency in Induction Motor?

The formula of Rotor Efficiency in Induction Motor is expressed as Efficiency = (Motor Speed)/(Synchronous Speed). Here is an example- 0.916347 = (1502.72848589059)/(1639.91136509036).

How to calculate Rotor Efficiency in Induction Motor?

With Motor Speed (N_m) & Synchronous Speed (N_s) we can find Rotor Efficiency in Induction Motor using the formula - Efficiency = (Motor Speed)/(Synchronous Speed).

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit