No Load Speed of Shunt DC Motor Calculator

✖Speed Regulation is the change in speed from no load to full load, expressed as a fraction or percentage of full load speed.ⓘ Speed Regulation [N_reg]			+10% -10%
✖Full Load Speed is defined as the speed of the motor at which the motor is fully loaded to provide its maximum torque to drive the load.ⓘ Full Load Speed [N_fl]			+10% -10%

✖No Load Speed is defined as a reference to how fast the shaft of a motor will turn before weight is added to it.ⓘ No Load Speed of Shunt DC Motor [N_nl]

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Formula

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No Load Speed of Shunt DC Motor

Formula

`"N"_{"nl"} = ("N"_{"reg"}*"N"_{"fl"})/(100+"N"_{"fl"})`

Example

`"2.389523rev/min"=("12012rev/min"*"0.19rev/min")/(100+"0.19rev/min")`

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No Load Speed of Shunt DC Motor Solution

STEP 0: Pre-Calculation Summary

Formula Used

No Load Speed = (Speed Regulation*Full Load Speed)/(100+Full Load Speed)
N_nl = (N_reg*N_fl)/(100+N_fl)
This formula uses 3 Variables

Variables Used

No Load Speed - (Measured in Radian per Second) - No Load Speed is defined as a reference to how fast the shaft of a motor will turn before weight is added to it.
Speed Regulation - (Measured in Radian per Second) - Speed Regulation is the change in speed from no load to full load, expressed as a fraction or percentage of full load speed.
Full Load Speed - (Measured in Radian per Second) - Full Load Speed is defined as the speed of the motor at which the motor is fully loaded to provide its maximum torque to drive the load.

STEP 1: Convert Input(s) to Base Unit

Speed Regulation: 12012 Revolution per Minute --> 1257.8936984333 Radian per Second (Check conversion here)
Full Load Speed: 0.19 Revolution per Minute --> 0.0198967534717222 Radian per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

N_nl = (N_reg*N_fl)/(100+N_fl) --> (1257.8936984333*0.0198967534717222)/(100+0.0198967534717222)

Evaluating ... ...

N_nl = 0.250230220423533

STEP 3: Convert Result to Output's Unit

0.250230220423533 Radian per Second -->2.38952258960447 Revolution per Minute (Check conversion here)

FINAL ANSWER

2.38952258960447 ≈ 2.389523 Revolution per Minute <-- No Load Speed

(Calculation completed in 00.006 seconds)

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Home » Engineering » Electrical » Machine » DC Machines » DC Motor » DC Shunt Motor » Speed » No Load Speed of Shunt DC Motor

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Created by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< 6 Speed Calculators

Angular Speed of DC Shunt Motor given Kf

Go Angular Speed = Back EMF/(Constant of Machine Construction*Magnetic Flux)

Speed Regulation of Shunt DC Motor

Go Speed Regulation = ((No Load Speed-Full Load Speed)/Full Load Speed)*100

No Load Speed of Shunt DC Motor

Go No Load Speed = (Speed Regulation*Full Load Speed)/(100+Full Load Speed)

Full Load Speed of Shunt DC Motor

Go Full Load Speed = (100*No Load Speed)/(Speed Regulation+100)

Angular Speed of DC Shunt Motor given Output Power

Go Angular Speed = Output Power/Torque

Torque of DC Motor given Output Power

Go Torque = Output Power/Angular Speed

No Load Speed of Shunt DC Motor Formula

No Load Speed = (Speed Regulation*Full Load Speed)/(100+Full Load Speed)
N_nl = (N_reg*N_fl)/(100+N_fl)

Is the speed of DC shunt motor variable?

By varying flux, we can increase the speed more than its base speed. This method is constant power and variable torque drive. Explanation: For a DC shunt motor, speed cannot be varied by the method of starting.

How to Calculate No Load Speed of Shunt DC Motor?

No Load Speed of Shunt DC Motor calculator uses No Load Speed = (Speed Regulation*Full Load Speed)/(100+Full Load Speed) to calculate the No Load Speed, The No Load Speed of Shunt DC Motor formula is defined as a reference to how fast the shaft of a motor will turn before weight is added to it. No Load Speed is denoted by N_nl symbol.

How to calculate No Load Speed of Shunt DC Motor using this online calculator? To use this online calculator for No Load Speed of Shunt DC Motor, enter Speed Regulation (N_reg) & Full Load Speed (N_fl) and hit the calculate button. Here is how the No Load Speed of Shunt DC Motor calculation can be explained with given input values -> 24.72738 = (1257.8936984333*0.0198967534717222)/(100+0.0198967534717222).

FAQ

What is No Load Speed of Shunt DC Motor?

The No Load Speed of Shunt DC Motor formula is defined as a reference to how fast the shaft of a motor will turn before weight is added to it and is represented as N_nl = (N_reg*N_fl)/(100+N_fl) or No Load Speed = (Speed Regulation*Full Load Speed)/(100+Full Load Speed). Speed Regulation is the change in speed from no load to full load, expressed as a fraction or percentage of full load speed & Full Load Speed is defined as the speed of the motor at which the motor is fully loaded to provide its maximum torque to drive the load.

How to calculate No Load Speed of Shunt DC Motor?

The No Load Speed of Shunt DC Motor formula is defined as a reference to how fast the shaft of a motor will turn before weight is added to it is calculated using No Load Speed = (Speed Regulation*Full Load Speed)/(100+Full Load Speed). To calculate No Load Speed of Shunt DC Motor, you need Speed Regulation (N_reg) & Full Load Speed (N_fl). With our tool, you need to enter the respective value for Speed Regulation & Full Load Speed 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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