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Number of Poles given Synchronous Speed in Synchronous Motor Formula

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Number of Poles is defined as the total number of poles present in any electrical machine. Check FAQs

P = \frac{f \cdot 120}{N s}

P - Number of Poles?f - Frequency?N_s - Synchronous Speed?

Number of Poles given Synchronous Speed in Synchronous Motor Example

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Here is how the Number of Poles given Synchronous Speed in Synchronous Motor equation looks like with Values.

Here is how the Number of Poles given Synchronous Speed in Synchronous Motor equation looks like with Units.

Here is how the Number of Poles given Synchronous Speed in Synchronous Motor equation looks like.

3 = \frac{61 \cdot 120}{23300}

3 = \frac{61Hz \cdot 120}{23300rev/min}

3 = \frac{61 \cdot 120}{23300}

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Number of Poles given Synchronous Speed in Synchronous Motor Solution

Follow our step by step solution on how to calculate Number of Poles given Synchronous Speed in Synchronous Motor?

FIRST Step Consider the formula

P = \frac{f \cdot 120}{N s}

Next Step Substitute values of Variables

∴

P = \frac{61Hz \cdot 120}{23300rev/min}

Next Step Convert Units

∴

P = \frac{61Hz \cdot 120}{2440rad/s}

Next Step Prepare to Evaluate

∴

P = \frac{61 \cdot 120}{2440}

Next Step Evaluate

∴

P = 3.00003652401374

LAST Step Rounding Answer

∴

P = 3

Number of Poles given Synchronous Speed in Synchronous Motor Formula Elements

Variables

Number of Poles

Number of Poles is defined as the total number of poles present in any electrical machine.

Symbol: P

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Number of Poles

Frequency

Frequency is the rate at which current changes direction per second. It is measured in hertz (Hz).

Symbol: f

Measurement: FrequencyUnit: Hz

Note: Value should be greater than 0.

Formulas to find Frequency

Synchronous Speed

Synchronous speed is a definite speed for an alternating-current machine that is dependent on the frequency of the supply circuit.

Symbol: N_s

Measurement: Angular VelocityUnit: rev/min

Note: Value can be positive or negative.

Formulas to find Synchronous Speed

Other formulas in Mechanical Specification category

Go Armature Current of Synchronous Motor given 3 Phase Mechanical Power

I a = \sqrt{\frac{P in(3Φ) - P me(3Φ)}{3 \cdot R a}}

Go Armature Current of Synchronous Motor given Input Power

I a = \frac{P in}{\cos (Φ s) \cdot V}

Go Armature Current of Synchronous Motor given Mechanical Power

I a = \sqrt{\frac{P in - P m}{R a}}

Go Load Current of Synchronous Motor given 3 Phase Mechanical Power

I L = \frac{P me(3Φ) + 3 \cdot {I a}^{2} \cdot R a}{\sqrt{3} \cdot V L \cdot \cos (Φ s)}

How to Evaluate Number of Poles given Synchronous Speed in Synchronous Motor?

Number of Poles given Synchronous Speed in Synchronous Motor evaluator uses Number of Poles = (Frequency*120)/Synchronous Speed to evaluate the Number of Poles, Number of Poles given Synchronous Speed in Synchronous Motor is the total number of poles that any motor has. The squirrel-cage motor has 2 poles and a cylindrical motor has n number of poles. Number of Poles is denoted by P symbol.

How to evaluate Number of Poles given Synchronous Speed in Synchronous Motor using this online evaluator? To use this online evaluator for Number of Poles given Synchronous Speed in Synchronous Motor, enter Frequency (f) & Synchronous Speed (N_s) and hit the calculate button.

FAQs on Number of Poles given Synchronous Speed in Synchronous Motor

What is the formula to find Number of Poles given Synchronous Speed in Synchronous Motor?

The formula of Number of Poles given Synchronous Speed in Synchronous Motor is expressed as Number of Poles = (Frequency*120)/Synchronous Speed. Here is an example- 3 = (61*120)/2439.97029416382.

How to calculate Number of Poles given Synchronous Speed in Synchronous Motor?

With Frequency (f) & Synchronous Speed (N_s) we can find Number of Poles given Synchronous Speed in Synchronous Motor using the formula - Number of Poles = (Frequency*120)/Synchronous Speed.

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