Specific Magnetic Loading Calculator

✖The number of poles determines the synchronous speed and operating characteristics of the machine.ⓘ Number of Poles [n]			+10% -10%
✖Flux per pole is defined as the magnetic flux present at each pole of any electrical machine.ⓘ Flux per Pole [Φ]			+10% -10%
✖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.ⓘ Armature Diameter [D_a]			+10% -10%
✖Armature core length refers to the axial length of the armature core, which is the part of the machine that houses the armature winding.ⓘ Armature Core Length [L_a]			+10% -10%

✖Specific Magnetic loading is defined as the total flux per unit area over the surface of the armature periphery and is denoted by B_av for any electrical machine.ⓘ Specific Magnetic Loading [B_av]

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Formula

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Specific Magnetic Loading

Formula

`"B"_{"av"} = ("n"*"Φ")/(pi*"D"_{"a"}*"L"_{"a"})`

Example

`"0.458366Wb/m²"=("4"*"0.054Wb")/(pi*"0.5m"*"0.3m")`

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Specific Magnetic Loading Solution

STEP 0: Pre-Calculation Summary

Formula Used

Specific Magnetic Loading = (Number of Poles*Flux per Pole)/(pi*Armature Diameter*Armature Core Length)
B_av = (n*Φ)/(pi*D_a*L_a)
This formula uses 1 Constants, 5 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Specific Magnetic Loading - (Measured in Tesla) - Specific Magnetic loading is defined as the total flux per unit area over the surface of the armature periphery and is denoted by B_av for any electrical machine.
Number of Poles - The number of poles determines the synchronous speed and operating characteristics of the machine.
Flux per Pole - (Measured in Weber) - Flux per pole is defined as the magnetic flux present at each pole of any electrical machine.
Armature Diameter - (Measured in Meter) - 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.
Armature Core Length - (Measured in Meter) - Armature core length refers to the axial length of the armature core, which is the part of the machine that houses the armature winding.

STEP 1: Convert Input(s) to Base Unit

Number of Poles: 4 --> No Conversion Required
Flux per Pole: 0.054 Weber --> 0.054 Weber No Conversion Required
Armature Diameter: 0.5 Meter --> 0.5 Meter No Conversion Required
Armature Core Length: 0.3 Meter --> 0.3 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

B_av = (n*Φ)/(pi*D_a*L_a) --> (4*0.054)/(pi*0.5*0.3)

Evaluating ... ...

B_av = 0.458366236104659

STEP 3: Convert Result to Output's Unit

0.458366236104659 Tesla -->0.458366236104659 Weber per Square Meter (Check conversion here)

FINAL ANSWER

0.458366236104659 ≈ 0.458366 Weber per Square Meter <-- Specific Magnetic Loading

(Calculation completed in 00.020 seconds)

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Created by ANKIT PAUL

BANGALORE INSTITUTE OF TECHNOLOGY (BIT), BANGALORE

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< 8 Magnetic Parameters Calculators

Specific Magnetic Loading

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

Specific Magnetic Loading using Output Coefficient AC

Go Specific Magnetic Loading = (Output Coefficient AC*1000)/(11*Specific Electric Loading*Winding Factor)

Flux per Pole using Pole Pitch

Go Flux per Pole = Specific Magnetic Loading*Pole Pitch*Limiting Value of Core Length

Pole Pitch

Go Pole Pitch = (pi*Armature Diameter)/Number of Poles

MMF of Damper Winding

Go MMF of Damper Winding = 0.143*Specific Electric Loading*Pole Pitch

Full Load Field MMF

Go Full Load Field MMF = Field Current*Turns per Coil

Magnetic Loading

Go Magnetic Loading = Number of Poles*Flux per Pole

Pole Arc

Go Pole Arc = Number of Damper Bar*0.8*Slot Pitch

Specific Magnetic Loading Formula

Specific Magnetic Loading = (Number of Poles*Flux per Pole)/(pi*Armature Diameter*Armature Core Length)
B_av = (n*Φ)/(pi*D_a*L_a)

What are the effect of higher value of specific magnetic loading?

If higher value of flux density is used it leads to smaller number of turns per phase in armature winding. This results in reduced value of leakage reactance and hence increased value of power and hence increased steady state stability.

What is electric loading in motor?

Electric motor load means the current drawn by an electric motor. It depends upon the load on the shaft of the motor. For a given electric motor, it can estimated using input power, amperage or speed of the motor. Most electric motors are designed to run at 50 % to 100 % of rated load.

How to Calculate Specific Magnetic Loading?

Specific Magnetic Loading calculator uses Specific Magnetic Loading = (Number of Poles*Flux per Pole)/(pi*Armature Diameter*Armature Core Length) to calculate the Specific Magnetic Loading, The Specific Magnetic Loading formula is defined as Specific Magnetic loading is defined as the total flux per unit area over the surface of the armature periphery and is denoted by B_av for any electrical machine. Specific Magnetic Loading is denoted by B_av symbol.

How to calculate Specific Magnetic Loading using this online calculator? To use this online calculator for Specific Magnetic Loading, enter Number of Poles (n), Flux per Pole (Φ), Armature Diameter (D_a) & Armature Core Length (L_a) and hit the calculate button. Here is how the Specific Magnetic Loading calculation can be explained with given input values -> 0.458366 = (4*0.054)/(pi*0.5*0.3).

FAQ

What is Specific Magnetic Loading?

The Specific Magnetic Loading formula is defined as Specific Magnetic loading is defined as the total flux per unit area over the surface of the armature periphery and is denoted by B_av for any electrical machine and is represented as B_av = (n*Φ)/(pi*D_a*L_a) or Specific Magnetic Loading = (Number of Poles*Flux per Pole)/(pi*Armature Diameter*Armature Core Length). The number of poles determines the synchronous speed and operating characteristics of the machine, Flux per pole is defined as the magnetic flux present at each pole of any electrical machine, 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 & Armature core length refers to the axial length of the armature core, which is the part of the machine that houses the armature winding.

How to calculate Specific Magnetic Loading?

The Specific Magnetic Loading formula is defined as Specific Magnetic loading is defined as the total flux per unit area over the surface of the armature periphery and is denoted by B_av for any electrical machine is calculated using Specific Magnetic Loading = (Number of Poles*Flux per Pole)/(pi*Armature Diameter*Armature Core Length). To calculate Specific Magnetic Loading, you need Number of Poles (n), Flux per Pole (Φ), Armature Diameter (D_a) & Armature Core Length (L_a). With our tool, you need to enter the respective value for Number of Poles, Flux per Pole, Armature Diameter & Armature Core Length 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 Specific Magnetic Loading?

In this formula, Specific Magnetic Loading uses Number of Poles, Flux per Pole, Armature Diameter & Armature Core Length. We can use 1 other way(s) to calculate the same, which is/are as follows -

Specific Magnetic Loading = (Output Coefficient AC*1000)/(11*Specific Electric Loading*Winding Factor)

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