Machine Construction Constant of Series DC Motor using Speed Calculator

✖Supply Voltage is the input voltage being fed to the dc motor circuit. It affects various motor parameters, such as speed, torque, and power consumption.ⓘ Supply Voltage [V_s]			+10% -10%
✖The armature current plays a crucial role in determining the performance and operation of a DC motor. It affects the motor's torque production, speed, and efficiency.ⓘ Armature Current [I_a]			+10% -10%
✖The Armature Resistance is the ohmic resistance of the copper winding wires plus the brush resistance in an electrical dc motor.ⓘ Armature Resistance [R_a]			+10% -10%
✖The Series Field Resistance is resistance just like the field resistance but it is connected to a series with the armature of the dc generator.ⓘ Series Field Resistance [R_sf]			+10% -10%
✖Magnetic flux (Φ) is the number of magnetic field lines passing through the magnetic core of an electrical dc motor.ⓘ Magnetic Flux [Φ]			+10% -10%
✖Motor speed refers to the rotational speed of a motor, indicating how fast the motor's shaft or rotor is rotating.ⓘ Motor Speed [N]			+10% -10%

✖Constant of Machine construction is a constant term which is calculated separately to a make calculation less complex.ⓘ Machine Construction Constant of Series DC Motor using Speed [K_f]

⎘ Copy

👎

Formula

✖

Machine Construction Constant of Series DC Motor using Speed

Formula

`"K"_{"f"} = ("V"_{"s"}-"I"_{"a"}*("R"_{"a"}+"R"_{"sf"}))/("Φ"*"N")`

Example

`"1.128382"=("240V"-"0.724A"*("80Ω"+"1.58Ω"))/("1.187Wb"*"1290rev/min")`

Calculator

LaTeX

Reset

👍

Download DC Series Motor Formulas PDF PDF Image

Machine Construction Constant of Series DC Motor using Speed Solution

STEP 0: Pre-Calculation Summary

Formula Used

Constant of Machine Construction = (Supply Voltage-Armature Current*(Armature Resistance+Series Field Resistance))/(Magnetic Flux*Motor Speed)
K_f = (V_s-I_a*(R_a+R_sf))/(Φ*N)
This formula uses 7 Variables

Variables Used

Constant of Machine Construction - Constant of Machine construction is a constant term which is calculated separately to a make calculation less complex.
Supply Voltage - (Measured in Volt) - Supply Voltage is the input voltage being fed to the dc motor circuit. It affects various motor parameters, such as speed, torque, and power consumption.
Armature Current - (Measured in Ampere) - The armature current plays a crucial role in determining the performance and operation of a DC motor. It affects the motor's torque production, speed, and efficiency.
Armature Resistance - (Measured in Ohm) - The Armature Resistance is the ohmic resistance of the copper winding wires plus the brush resistance in an electrical dc motor.
Series Field Resistance - (Measured in Ohm) - The Series Field Resistance is resistance just like the field resistance but it is connected to a series with the armature of the dc generator.
Magnetic Flux - (Measured in Weber) - Magnetic flux (Φ) is the number of magnetic field lines passing through the magnetic core of an electrical dc motor.
Motor Speed - (Measured in Radian per Second) - Motor speed refers to the rotational speed of a motor, indicating how fast the motor's shaft or rotor is rotating.

STEP 1: Convert Input(s) to Base Unit

Supply Voltage: 240 Volt --> 240 Volt No Conversion Required
Armature Current: 0.724 Ampere --> 0.724 Ampere No Conversion Required
Armature Resistance: 80 Ohm --> 80 Ohm No Conversion Required
Series Field Resistance: 1.58 Ohm --> 1.58 Ohm No Conversion Required
Magnetic Flux: 1.187 Weber --> 1.187 Weber No Conversion Required
Motor Speed: 1290 Revolution per Minute --> 135.088484097482 Radian per Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

K_f = (V_s-I_a*(R_a+R_sf))/(Φ*N) --> (240-0.724*(80+1.58))/(1.187*135.088484097482)

Evaluating ... ...

K_f = 1.12838194851735

STEP 3: Convert Result to Output's Unit

1.12838194851735 --> No Conversion Required

FINAL ANSWER

1.12838194851735 ≈ 1.128382 <-- Constant of Machine Construction

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electrical » Machine » DC Machines » DC Motor » DC Series Motor » Mechanical Specifications » Machine Construction Constant of Series DC Motor using Speed

Credits

Created by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

Urvi Rathod has created this Calculator and 1500+ more calculators!

Verified by Kethavath Srinath

Osmania University (OU), Hyderabad

Kethavath Srinath has verified this Calculator and 1200+ more calculators!

< 3 Mechanical Specifications Calculators

Machine Construction Constant of Series DC Motor using Speed

Go Constant of Machine Construction = (Supply Voltage-Armature Current*(Armature Resistance+Series Field Resistance))/(Magnetic Flux*Motor Speed)

Magnetic Flux of Series DC Motor given Speed

Go Magnetic Flux = (Supply Voltage-Armature Current*(Armature Resistance+Series Field Resistance))/(Constant of Machine Construction*Motor Speed)

Machine Construction Constant of Series DC Motor using Armature Induced Voltage

Go Constant of Machine Construction = Armature Voltage/(Magnetic Flux*Angular Speed*Armature Current)

Machine Construction Constant of Series DC Motor using Speed Formula

Constant of Machine Construction = (Supply Voltage-Armature Current*(Armature Resistance+Series Field Resistance))/(Magnetic Flux*Motor Speed)
K_f = (V_s-I_a*(R_a+R_sf))/(Φ*N)

What are the features of DC series motor?

In a DC series motor, the field winding is connected in series with the armature and hence carries the full armature current. When the load on shaft of the motor is increased, the armature current also increases. Hence, the flux in a series motor increases with the increase in the armature current and vice-versa.

How to Calculate Machine Construction Constant of Series DC Motor using Speed?

Machine Construction Constant of Series DC Motor using Speed calculator uses Constant of Machine Construction = (Supply Voltage-Armature Current*(Armature Resistance+Series Field Resistance))/(Magnetic Flux*Motor Speed) to calculate the Constant of Machine Construction, The Machine Construction Constant of Series DC Motor using Speed formula is defined as a constant based on machine construction that is required to find all the basic quality of the machine. Constant of Machine Construction is denoted by K_f symbol.

How to calculate Machine Construction Constant of Series DC Motor using Speed using this online calculator? To use this online calculator for Machine Construction Constant of Series DC Motor using Speed, enter Supply Voltage (V_s), Armature Current (I_a), Armature Resistance (R_a), Series Field Resistance (R_sf), Magnetic Flux (Φ) & Motor Speed (N) and hit the calculate button. Here is how the Machine Construction Constant of Series DC Motor using Speed calculation can be explained with given input values -> 1.123867 = (240-0.724*(80+1.58))/(1.187*135.088484097482).

FAQ

What is Machine Construction Constant of Series DC Motor using Speed?

The Machine Construction Constant of Series DC Motor using Speed formula is defined as a constant based on machine construction that is required to find all the basic quality of the machine and is represented as K_f = (V_s-I_a*(R_a+R_sf))/(Φ*N) or Constant of Machine Construction = (Supply Voltage-Armature Current*(Armature Resistance+Series Field Resistance))/(Magnetic Flux*Motor Speed). Supply Voltage is the input voltage being fed to the dc motor circuit. It affects various motor parameters, such as speed, torque, and power consumption, The armature current plays a crucial role in determining the performance and operation of a DC motor. It affects the motor's torque production, speed, and efficiency, The Armature Resistance is the ohmic resistance of the copper winding wires plus the brush resistance in an electrical dc motor, The Series Field Resistance is resistance just like the field resistance but it is connected to a series with the armature of the dc generator, Magnetic flux (Φ) is the number of magnetic field lines passing through the magnetic core of an electrical dc motor & Motor speed refers to the rotational speed of a motor, indicating how fast the motor's shaft or rotor is rotating.

How to calculate Machine Construction Constant of Series DC Motor using Speed?

The Machine Construction Constant of Series DC Motor using Speed formula is defined as a constant based on machine construction that is required to find all the basic quality of the machine is calculated using Constant of Machine Construction = (Supply Voltage-Armature Current*(Armature Resistance+Series Field Resistance))/(Magnetic Flux*Motor Speed). To calculate Machine Construction Constant of Series DC Motor using Speed, you need Supply Voltage (V_s), Armature Current (I_a), Armature Resistance (R_a), Series Field Resistance (R_sf), Magnetic Flux (Φ) & Motor Speed (N). With our tool, you need to enter the respective value for Supply Voltage, Armature Current, Armature Resistance, Series Field Resistance, Magnetic Flux & Motor Speed 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 Constant of Machine Construction?

In this formula, Constant of Machine Construction uses Supply Voltage, Armature Current, Armature Resistance, Series Field Resistance, Magnetic Flux & Motor Speed. We can use 1 other way(s) to calculate the same, which is/are as follows -

Constant of Machine Construction = Armature Voltage/(Magnetic Flux*Angular Speed*Armature Current)

Home

FREE PDFs

🔍 Search