FormulaDen.com

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

Series Field Resistance of Series DC Motor given Speed Formula

Fx Copy

LaTeX Copy

Shunt Field Resistance is a device that creates a path that has a low resistance for electric current to flow in a dc motor circuit. Check FAQs

R sh = (\frac{V s - N \cdot K f \cdot Φ}{I a}) - R a

R_sh - Shunt Field Resistance?V_s - Supply Voltage?N - Motor Speed?K_f - Constant of Machine Construction?Φ - Magnetic Flux?I_a - Armature Current?R_a - Armature Resistance?

Series Field Resistance of Series DC Motor given Speed Example

With values

With units

Only example

Here is how the Series Field Resistance of Series DC Motor given Speed equation looks like with Values.

Here is how the Series Field Resistance of Series DC Motor given Speed equation looks like with Units.

Here is how the Series Field Resistance of Series DC Motor given Speed equation looks like.

0.1142 = (\frac{240 - 1290 \cdot 1.135 \cdot 1.187}{0.724}) - 80

0.1142Ω = (\frac{240V - 1290rev/min \cdot 1.135 \cdot 1.187Wb}{0.724A}) - 80Ω

0.1142 = (\frac{240 - 1290 \cdot 1.135 \cdot 1.187}{0.724}) - 80

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 Series Field Resistance of Series DC Motor given Speed

Series Field Resistance of Series DC Motor given Speed Solution

Follow our step by step solution on how to calculate Series Field Resistance of Series DC Motor given Speed?

FIRST Step Consider the formula

R sh = (\frac{V s - N \cdot K f \cdot Φ}{I a}) - R a

Next Step Substitute values of Variables

∴

R sh = (\frac{240V - 1290rev/min \cdot 1.135 \cdot 1.187Wb}{0.724A}) - 80Ω

Next Step Convert Units

∴

R sh = (\frac{240V - 135.0885rad/s \cdot 1.135 \cdot 1.187Wb}{0.724A}) - 80Ω

Next Step Prepare to Evaluate

∴

R sh = (\frac{240 - 135.0885 \cdot 1.135 \cdot 1.187}{0.724}) - 80

Next Step Evaluate

∴

R sh = 0.114247571944546Ω

LAST Step Rounding Answer

∴

R sh = 0.1142Ω

Series Field Resistance of Series DC Motor given Speed Formula Elements

Variables

Shunt Field Resistance

Shunt Field Resistance is a device that creates a path that has a low resistance for electric current to flow in a dc motor circuit.

Symbol: R_sh

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Shunt Field Resistance

Supply Voltage

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.

Symbol: V_s

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Supply Voltage

Motor Speed

Motor speed refers to the rotational speed of a motor, indicating how fast the motor's shaft or rotor is rotating.

Symbol: N

Measurement: Angular VelocityUnit: rev/min

Note: Value can be positive or negative.

Formulas to find Motor Speed

Constant of Machine Construction

Constant of Machine construction is a constant term which is calculated separately to a make calculation less complex.

Symbol: K_f

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Constant of Machine Construction

Magnetic Flux

Magnetic flux (Φ) is the number of magnetic field lines passing through the magnetic core of an electrical dc motor.

Symbol: Φ

Measurement: Magnetic FluxUnit: Wb

Note: Value should be greater than 0.

Formulas to find Magnetic Flux

Armature Current

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.

Symbol: I_a

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Armature Current

Armature Resistance

The Armature Resistance is the ohmic resistance of the copper winding wires plus the brush resistance in an electrical dc motor.

Symbol: R_a

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Armature Resistance

Other formulas in Resistance category

Go Armature Resistance of Series DC Motor given Voltage

R a = (\frac{V s - V a}{I a}) - R sf

Go Series Field Resistance of Series DC Motor given Voltage

R sf = (\frac{V s - V a}{I a}) - R a

How to Evaluate Series Field Resistance of Series DC Motor given Speed?

Series Field Resistance of Series DC Motor given Speed evaluator uses Shunt Field Resistance = ((Supply Voltage-Motor Speed*Constant of Machine Construction*Magnetic Flux)/Armature Current)-Armature Resistance to evaluate the Shunt Field Resistance, The Series Field Resistance of Series DC Motor given Speed formula is defined as the resistance of the series field winding of the series DC motor. Shunt Field Resistance is denoted by R_sh symbol.

How to evaluate Series Field Resistance of Series DC Motor given Speed using this online evaluator? To use this online evaluator for Series Field Resistance of Series DC Motor given Speed, enter Supply Voltage (V_s), Motor Speed (N), Constant of Machine Construction (K_f), Magnetic Flux (Φ), Armature Current (I_a) & Armature Resistance (R_a) and hit the calculate button.

FAQs on Series Field Resistance of Series DC Motor given Speed

What is the formula to find Series Field Resistance of Series DC Motor given Speed?

The formula of Series Field Resistance of Series DC Motor given Speed is expressed as Shunt Field Resistance = ((Supply Voltage-Motor Speed*Constant of Machine Construction*Magnetic Flux)/Armature Current)-Armature Resistance. Here is an example- -0.885752 = ((240-135.088484097482*1.135*1.187)/0.724)-80.

How to calculate Series Field Resistance of Series DC Motor given Speed?

With Supply Voltage (V_s), Motor Speed (N), Constant of Machine Construction (K_f), Magnetic Flux (Φ), Armature Current (I_a) & Armature Resistance (R_a) we can find Series Field Resistance of Series DC Motor given Speed using the formula - Shunt Field Resistance = ((Supply Voltage-Motor Speed*Constant of Machine Construction*Magnetic Flux)/Armature Current)-Armature Resistance.

Can the Series Field Resistance of Series DC Motor given Speed be negative?

No, the Series Field Resistance of Series DC Motor given Speed, measured in Electric Resistance cannot be negative.

Which unit is used to measure Series Field Resistance of Series DC Motor given Speed?

Series Field Resistance of Series DC Motor given Speed is usually measured using the Ohm[Ω] for Electric Resistance. Megohm[Ω], Microhm[Ω], Volt per Ampere[Ω] are the few other units in which Series Field Resistance of Series DC Motor given Speed can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Series Field Resistance of Series DC Motor given Speed Formula

Series Field Resistance of Series DC Motor given Speed Example

Series Field Resistance of Series DC Motor given Speed Solution

Series Field Resistance of Series DC Motor given Speed Formula Elements

Other formulas in Resistance category

How to Evaluate Series Field Resistance of Series DC Motor given Speed?

FAQs on Series Field Resistance of Series DC Motor given Speed

Variable Name