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Number of Poles using Pole Pitch Formula

GoNumber of Poles using Magnetic Loading Formula

GoNumber of Poles using Specific Magnetic Loading Formula

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The number of poles determines the synchronous speed and operating characteristics of the machine. Check FAQs

n = \frac{π \cdot D a}{Y p}

n - Number of Poles?D_a - Armature Diameter?Y_p - Pole Pitch?π - Archimedes' constant?

Number of Poles using Pole Pitch Example

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Here is how the Number of Poles using Pole Pitch equation looks like with Values.

Here is how the Number of Poles using Pole Pitch equation looks like with Units.

Here is how the Number of Poles using Pole Pitch equation looks like.

4 = \frac{3.1416 \cdot 1}{0}

4 = \frac{3.1416 \cdot 1m}{0m}

4 = \frac{3.1416 \cdot 1}{0}

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Number of Poles using Pole Pitch Solution

Follow our step by step solution on how to calculate Number of Poles using Pole Pitch?

FIRST Step Consider the formula

n = \frac{π \cdot D a}{Y p}

Next Step Substitute values of Variables

∴

n = \frac{π \cdot 1m}{0m}

Next Step Substitute values of Constants

∴

n = \frac{3.1416 \cdot 1m}{0m}

Next Step Prepare to Evaluate

∴

n = \frac{3.1416 \cdot 1}{0}

Next Step Evaluate

∴

n = 4.00713348672168

LAST Step Rounding Answer

∴

n = 4

Number of Poles using Pole Pitch Formula Elements

Variables

Constants

Number of Poles

The number of poles determines the synchronous speed and operating characteristics of the machine.

Symbol: n

Measurement: NAUnit: Unitless

Note: Value should be greater than 1.

Formulas to find Number of Poles

Armature Diameter

Armature diameter refers to the diameter of the armature core, which is a component found in certain types of electric machines, such as motors and generators.

Symbol: D_a

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Armature Diameter

Pole Pitch

Pole pitch is defined as the peripheral distance between the center of two adjacent poles in a DC machine.

Symbol: Y_p

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Pole Pitch

Archimedes' constant

Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.

Symbol: π

Value: 3.14159265358979323846264338327950288

Other Formulas to find Number of Poles

Go Number of Poles using Magnetic Loading

n = \frac{B}{Φ}

Go Number of Poles using Specific Magnetic Loading

n = \frac{B av \cdot π \cdot D a \cdot L a}{Φ}

Other formulas in DC Machines category

Go Limiting Value of Core Length

L limit = \frac{7.5}{B av \cdot V a \cdot T c \cdot n c}

Go Average Gap Density using Limiting Value of Core Length

B av = \frac{7.5}{L limit \cdot V a \cdot T c \cdot n c}

Go Peripheral Speed of Armature using Limiting Value of Core Length

V a = \frac{7.5}{B av \cdot L limit \cdot T c \cdot n c}

Go Flux per Pole using Magnetic Loading

Φ = \frac{B}{n}

How to Evaluate Number of Poles using Pole Pitch?

Number of Poles using Pole Pitch evaluator uses Number of Poles = (pi*Armature Diameter)/Pole Pitch to evaluate the Number of Poles, The Number of poles using pole pitch gives the number of poles in the machine. Number of Poles is denoted by n symbol.

How to evaluate Number of Poles using Pole Pitch using this online evaluator? To use this online evaluator for Number of Poles using Pole Pitch, enter Armature Diameter (D_a) & Pole Pitch (Y_p) and hit the calculate button.

FAQs on Number of Poles using Pole Pitch

What is the formula to find Number of Poles using Pole Pitch?

The formula of Number of Poles using Pole Pitch is expressed as Number of Poles = (pi*Armature Diameter)/Pole Pitch. Here is an example- 4 = (pi*0.5)/0.392.

How to calculate Number of Poles using Pole Pitch?

With Armature Diameter (D_a) & Pole Pitch (Y_p) we can find Number of Poles using Pole Pitch using the formula - Number of Poles = (pi*Armature Diameter)/Pole Pitch. This formula also uses Archimedes' constant .

What are the other ways to Calculate Number of Poles?

Here are the different ways to Calculate Number of Poles-

Number of Poles=Magnetic Loading/Flux per Pole
Number of Poles=(Specific Magnetic Loading*pi*Armature Diameter*Armature Core Length)/Flux per Pole

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