Rotor Input Power in Induction Motor Calculator

✖Input Power is defined as the total power supplied to the electrical machine from the source which is connected to it.ⓘ Input Power [P_in]			+10% -10%
✖Stator losses refer to the electrical energy losses that occur in the stator of an electric motor or generator.ⓘ Stator Losses [P_sl]			+10% -10%

✖Rotor Input Power is the total mechanical power is developed in the rotor is equal to the (1-s) times of the rotor input.ⓘ Rotor Input Power in Induction Motor [P_in(r)]

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Formula

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Rotor Input Power in Induction Motor

Formula

`"P"_{"in(r)"} = "P"_{"in"}-"P"_{"sl"}`

Example

`"7.8W"="40W"-"32.2W"`

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Rotor Input Power in Induction Motor Solution

STEP 0: Pre-Calculation Summary

Formula Used

Rotor Input Power = Input Power-Stator Losses
P_in(r) = P_in-P_sl
This formula uses 3 Variables

Variables Used

Rotor Input Power - (Measured in Watt) - Rotor Input Power is the total mechanical power is developed in the rotor is equal to the (1-s) times of the rotor input.
Input Power - (Measured in Watt) - Input Power is defined as the total power supplied to the electrical machine from the source which is connected to it.
Stator Losses - (Measured in Watt) - Stator losses refer to the electrical energy losses that occur in the stator of an electric motor or generator.

STEP 1: Convert Input(s) to Base Unit

Input Power: 40 Watt --> 40 Watt No Conversion Required
Stator Losses: 32.2 Watt --> 32.2 Watt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P_in(r) = P_in-P_sl --> 40-32.2

Evaluating ... ...

P_in(r) = 7.8

STEP 3: Convert Result to Output's Unit

7.8 Watt --> No Conversion Required

FINAL ANSWER

7.8 Watt <-- Rotor Input Power

(Calculation completed in 00.004 seconds)

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Created by Aman Dhussawat

GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY (GTBIT), NEW DELHI

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Chandigarh University (CU), Punjab

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< 5 Power Calculators

Power Input in Induction Motor

Go Input Power = sqrt(3)*Line Voltage*Line Current*Power Factor

Air Gap Power of Induction Motor

Go Air Gap Power = Input Power-Stator Copper Loss-Core Loss

Power Converted in Induction Motor

Go Converted Power = Air Gap Power-Rotor Copper Loss

Rotor Input Power in Induction Motor

Go Rotor Input Power = Input Power-Stator Losses

Gross Mechanical Power in Induction Motor

Go Mechanical Power = (1-Slip)*Input Power

< 25 Induction Motor Circuit Calculators

Torque of Induction Motor under Running Condition

Go Torque = (3*Slip*EMF^2*Resistance)/(2*pi*Synchronous Speed*(Resistance^2+(Reactance^2*Slip)))

Rotor Current in Induction Motor

Go Rotor Current = (Slip*Induced EMF)/sqrt(Rotor Resistance per Phase^2+(Slip*Rotor Reactance per Phase)^2)

Starting Torque of Induction Motor

Go Torque = (3*EMF^2*Resistance)/(2*pi*Synchronous Speed*(Resistance^2+Reactance^2))

Maximum Running Torque

Go Running Torque = (3*EMF^2)/(4*pi*Synchronous Speed*Reactance)

Linear Synchronous Speed

Go Linear Synchronous Speed = 2*Pole Pitch Width*Line Frequency

Stator Copper Loss in Induction Motor

Go Stator Copper Loss = 3*Stator Current^2*Stator Resistance

Rotor Copper Loss in Induction Motor

Go Rotor Copper Loss = 3*Rotor Current^2*Rotor Resistance

Synchronous Speed in Induction Motor

Go Synchronous Speed = (120*Frequency)/(Number of Poles)

Frequency given Number of Poles in Induction Motor

Go Frequency = (Number of Poles*Synchronous Speed)/120

Armature Current given Power in Induction Motor

Go Armature Current = Output Power/Armature Voltage

Synchronous Speed of Induction Motor given Efficiency

Go Synchronous Speed = (Motor Speed)/(Efficiency)

Rotor Efficiency in Induction Motor

Go Efficiency = (Motor Speed)/(Synchronous Speed)

Field Current using Load Current in Induction Motor

Go Field Current = Armature Current-Load Current

Rotor Input Power in Induction Motor

Go Rotor Input Power = Input Power-Stator Losses

Load Current in Induction Motor

Go Load Current = Armature Current-Field Current

Force by Linear Induction Motor

Go Force = Input Power/Linear Synchronous Speed

Motor Speed given Efficiency in Induction Motor

Go Motor Speed = Efficiency*Synchronous Speed

Rotor Copper Loss given Input Rotor Power

Go Rotor Copper Loss = Slip*Rotor Input Power

Pitch Factor in Induction Motor

Go Pitch Factor = cos(Short Pitched Angle/2)

Gross Mechanical Power in Induction Motor

Go Mechanical Power = (1-Slip)*Input Power

Rotor Frequency given Supply Frequency

Go Rotor Frequency = Slip*Frequency

Resistance given Slip at Maximum Torque

Go Resistance = Slip*Reactance

Reactance given Slip at Maximum Torque

Go Reactance = Resistance/Slip

Breakdown Slip of Induction Motor

Go Slip = Resistance/Reactance

Slip given Efficiency in Induction Motor

Go Slip = 1-Efficiency

Rotor Input Power in Induction Motor Formula

Rotor Input Power = Input Power-Stator Losses
P_in(r) = P_in-P_sl

What is the source of power of a rotor in an induction motor?

Operating principle. In a three-phase induction machine, alternating current supplied to the stator windings energizes it to create a rotating magnetic flux. The flux generates a magnetic field in the air gap between the stator and the rotor and induces a voltage which produces current through the rotor bars.

How to Calculate Rotor Input Power in Induction Motor?

Rotor Input Power in Induction Motor calculator uses Rotor Input Power = Input Power-Stator Losses to calculate the Rotor Input Power, The Rotor Input Power in Induction Motor formula is defined as the input power to an induction motor rotor can be defined as the electrical power transferred from the stator to the rotor. Rotor Input Power is denoted by P_in(r) symbol.

How to calculate Rotor Input Power in Induction Motor using this online calculator? To use this online calculator for Rotor Input Power in Induction Motor, enter Input Power (P_in) & Stator Losses (P_sl) and hit the calculate button. Here is how the Rotor Input Power in Induction Motor calculation can be explained with given input values -> 7.8 = 40-32.2.

FAQ

What is Rotor Input Power in Induction Motor?

The Rotor Input Power in Induction Motor formula is defined as the input power to an induction motor rotor can be defined as the electrical power transferred from the stator to the rotor and is represented as P_in(r) = P_in-P_sl or Rotor Input Power = Input Power-Stator Losses. Input Power is defined as the total power supplied to the electrical machine from the source which is connected to it & Stator losses refer to the electrical energy losses that occur in the stator of an electric motor or generator.

How to calculate Rotor Input Power in Induction Motor?

The Rotor Input Power in Induction Motor formula is defined as the input power to an induction motor rotor can be defined as the electrical power transferred from the stator to the rotor is calculated using Rotor Input Power = Input Power-Stator Losses. To calculate Rotor Input Power in Induction Motor, you need Input Power (P_in) & Stator Losses (P_sl). With our tool, you need to enter the respective value for Input Power & Stator Losses and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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