Slip at Pull Out Torque Solution

STEP 0: Pre-Calculation Summary
Formula Used
Slip = Referred Resistance/sqrt(Thevenin Resistance^2+(Thevenin Reactance+Referred Reactance)^2)
s = R2/sqrt(Rth^2+(Xth+X2)^2)
This formula uses 1 Functions, 5 Variables
Functions Used
sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)
Variables Used
Slip - Slip in Induction Motor is the relative speed between the rotating magnetic flux and rotor expressed in terms of per unit synchronous speed. It is a dimensionless quantity.
Referred Resistance - (Measured in Ohm) - Referred Resistance is defined as the resistance of the rotor referred to the primary of the induction motor.
Thevenin Resistance - (Measured in Ohm) - Thevenin Resistance is defined as the single equivalent resistance which can you used to replace the resistances in a circuit.
Thevenin Reactance - (Measured in Ohm) - Thevenin Reactance is defined as the equivalent reactance that can be used to replace the entire reactance in a circuit.
Referred Reactance - (Measured in Ohm) - Referred Reactance is defined as the reactance of the rotor referred to the primary of the induction motor.
STEP 1: Convert Input(s) to Base Unit
Referred Resistance: 13.45 Ohm --> 13.45 Ohm No Conversion Required
Thevenin Resistance: 41.1 Ohm --> 41.1 Ohm No Conversion Required
Thevenin Reactance: 38 Ohm --> 38 Ohm No Conversion Required
Referred Reactance: 18.8 Ohm --> 18.8 Ohm No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
s = R2/sqrt(Rth^2+(Xth+X2)^2) --> 13.45/sqrt(41.1^2+(38+18.8)^2)
Evaluating ... ...
s = 0.191840652511443
STEP 3: Convert Result to Output's Unit
0.191840652511443 --> No Conversion Required
FINAL ANSWER
0.191840652511443 0.191841 <-- Slip
(Calculation completed in 00.004 seconds)

Credits

Created by Urvi Rathod
Vishwakarma Government Engineering College (VGEC), Ahmedabad
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5 Slip Calculators

Slip at Pull Out Torque
Go Slip = Referred Resistance/sqrt(Thevenin Resistance^2+(Thevenin Reactance+Referred Reactance)^2)
Slip of Motor in Induction Motor
Go Slip = (Synchronous Speed-Motor Speed)/Synchronous Speed
Slip given Frequency in Induction Motor
Go Slip = Rotor Frequency/Frequency
Breakdown Slip of Induction Motor
Go Slip = Resistance/Reactance
Slip given Efficiency in Induction Motor
Go Slip = 1-Efficiency

Slip at Pull Out Torque Formula

Slip = Referred Resistance/sqrt(Thevenin Resistance^2+(Thevenin Reactance+Referred Reactance)^2)
s = R2/sqrt(Rth^2+(Xth+X2)^2)

What is slip?

Slip is nothing but the ratio of the difference between the synchronous speed (Flux speed) to actual motor speed to synchronous speed. It is normally expressed in S.

How to Calculate Slip at Pull Out Torque?

Slip at Pull Out Torque calculator uses Slip = Referred Resistance/sqrt(Thevenin Resistance^2+(Thevenin Reactance+Referred Reactance)^2) to calculate the Slip, Slip at Pull Out Torque is defined as slip of an induction motor which occurs when the torque is maximum or when the induction motor has reached its operating point. Slip is denoted by s symbol.

How to calculate Slip at Pull Out Torque using this online calculator? To use this online calculator for Slip at Pull Out Torque, enter Referred Resistance (R2), Thevenin Resistance (Rth), Thevenin Reactance (Xth) & Referred Reactance (X2) and hit the calculate button. Here is how the Slip at Pull Out Torque calculation can be explained with given input values -> 0.192001 = 13.45/sqrt(41.1^2+(38+18.8)^2).

FAQ

What is Slip at Pull Out Torque?
Slip at Pull Out Torque is defined as slip of an induction motor which occurs when the torque is maximum or when the induction motor has reached its operating point and is represented as s = R2/sqrt(Rth^2+(Xth+X2)^2) or Slip = Referred Resistance/sqrt(Thevenin Resistance^2+(Thevenin Reactance+Referred Reactance)^2). Referred Resistance is defined as the resistance of the rotor referred to the primary of the induction motor, Thevenin Resistance is defined as the single equivalent resistance which can you used to replace the resistances in a circuit, Thevenin Reactance is defined as the equivalent reactance that can be used to replace the entire reactance in a circuit & Referred Reactance is defined as the reactance of the rotor referred to the primary of the induction motor.
How to calculate Slip at Pull Out Torque?
Slip at Pull Out Torque is defined as slip of an induction motor which occurs when the torque is maximum or when the induction motor has reached its operating point is calculated using Slip = Referred Resistance/sqrt(Thevenin Resistance^2+(Thevenin Reactance+Referred Reactance)^2). To calculate Slip at Pull Out Torque, you need Referred Resistance (R2), Thevenin Resistance (Rth), Thevenin Reactance (Xth) & Referred Reactance (X2). With our tool, you need to enter the respective value for Referred Resistance, Thevenin Resistance, Thevenin Reactance & Referred Reactance 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 Slip?
In this formula, Slip uses Referred Resistance, Thevenin Resistance, Thevenin Reactance & Referred Reactance. We can use 4 other way(s) to calculate the same, which is/are as follows -
  • Slip = Rotor Frequency/Frequency
  • Slip = Resistance/Reactance
  • Slip = 1-Efficiency
  • Slip = (Synchronous Speed-Motor Speed)/Synchronous Speed
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