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Eddy Current Loss Formula

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Eddy current loss are defined as the loss occurring due to loops of electrical current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction. Check FAQs

P e = K e \cdot {B max}^{2} \cdot f^{2} \cdot w^{2} \cdot V core

P_e - Eddy Current Loss?K_e - Eddy Current Coefficient?B_max - Maximum Flux Density?f - Supply Frequency?w - Lamination Thickness?V_core - Volume of Core?

Eddy Current Loss Example

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Here is how the Eddy Current Loss equation looks like with Values.

Here is how the Eddy Current Loss equation looks like with Units.

Here is how the Eddy Current Loss equation looks like.

0.4011 = 0.98 \cdot {0.0012}^{2} \cdot 500^{2} \cdot {0.7}^{2} \cdot 2.32

0.4011W = 0.98S/m \cdot {0.0012T}^{2} \cdot {500Hz}^{2} \cdot {0.7m}^{2} \cdot 2.32m³

0.4011 = 0.98 \cdot {0.0012}^{2} \cdot 500^{2} \cdot {0.7}^{2} \cdot 2.32

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Eddy Current Loss Solution

Follow our step by step solution on how to calculate Eddy Current Loss?

FIRST Step Consider the formula

P e = K e \cdot {B max}^{2} \cdot f^{2} \cdot w^{2} \cdot V core

Next Step Substitute values of Variables

∴

P e = 0.98S/m \cdot {0.0012T}^{2} \cdot {500Hz}^{2} \cdot {0.7m}^{2} \cdot 2.32m³

Next Step Prepare to Evaluate

∴

P e = 0.98 \cdot {0.0012}^{2} \cdot 500^{2} \cdot {0.7}^{2} \cdot 2.32

Next Step Evaluate

∴

P e = 0.40106304W

LAST Step Rounding Answer

∴

P e = 0.4011W

Eddy Current Loss Formula Elements

Variables

Eddy Current Loss

Eddy current loss are defined as the loss occurring due to loops of electrical current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction.

Symbol: P_e

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Eddy Current Loss

Eddy Current Coefficient

Eddy Current Coefficient is a coefficient that depends on the inverse of resistivity of the material used in the winding of transformer.

Symbol: K_e

Measurement: Electric ConductivityUnit: S/m

Note: Value should be greater than 0.

Formulas to find Eddy Current Coefficient

Maximum Flux Density

Maximum Flux Density is defined as the number of lines of force passing through a unit area of material.

Symbol: B_max

Measurement: Magnetic Flux DensityUnit: T

Note: Value should be greater than 0.

Formulas to find Maximum Flux Density

Supply Frequency

Supply Frequency means Induction motors are designed for a specific voltage per frequency ratio (V/Hz). The voltage is called the supply voltage and the frequency is called the 'Supply Frequency'.

Symbol: f

Measurement: FrequencyUnit: Hz

Note: Value should be greater than 0.

Formulas to find Supply Frequency

Lamination Thickness

Lamination Thickness is defined as the combined width of all the lamination in the core of a transformer.

Symbol: w

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Lamination Thickness

Volume of Core

Volume of Core is defined as the total volume of the material used to construct the core of a transmformer.

Symbol: V_core

Measurement: VolumeUnit: m³

Note: Value should be greater than 0.

Formulas to find Volume of Core

Other formulas in Losses category

Go Area of Core given EMF Induced in Primary Winding

A core = \frac{E 1}{4.44 \cdot f \cdot N 1 \cdot B max}

Go Area of Core given EMF Induced in Secondary Winding

A core = \frac{E 2}{4.44 \cdot f \cdot N 2 \cdot B max}

Go Maximum Core Flux

Φ max = B max \cdot A core

Go Maximum Flux in Core using Primary Winding

Φ max = \frac{E 1}{4.44 \cdot f \cdot N 1}

How to Evaluate Eddy Current Loss?

Eddy Current Loss evaluator uses Eddy Current Loss = Eddy Current Coefficient*Maximum Flux Density^2*Supply Frequency^2*Lamination Thickness^2*Volume of Core to evaluate the Eddy Current Loss, Eddy current loss are defined as the losses due to loops of electrical current induced within conductors by a changing magnetic field in the conductor according to Faraday's law of induction. Eddy Current Loss is denoted by P_e symbol.

How to evaluate Eddy Current Loss using this online evaluator? To use this online evaluator for Eddy Current Loss, enter Eddy Current Coefficient (K_e), Maximum Flux Density (B_max), Supply Frequency (f), Lamination Thickness (w) & Volume of Core (V_core) and hit the calculate button.

FAQs on Eddy Current Loss

What is the formula to find Eddy Current Loss?

The formula of Eddy Current Loss is expressed as Eddy Current Loss = Eddy Current Coefficient*Maximum Flux Density^2*Supply Frequency^2*Lamination Thickness^2*Volume of Core. Here is an example- 0.401063 = 0.98*0.0012^2*500^2*0.7^2*2.32.

How to calculate Eddy Current Loss?

With Eddy Current Coefficient (K_e), Maximum Flux Density (B_max), Supply Frequency (f), Lamination Thickness (w) & Volume of Core (V_core) we can find Eddy Current Loss using the formula - Eddy Current Loss = Eddy Current Coefficient*Maximum Flux Density^2*Supply Frequency^2*Lamination Thickness^2*Volume of Core.

Can the Eddy Current Loss be negative?

No, the Eddy Current Loss, measured in Power cannot be negative.

Which unit is used to measure Eddy Current Loss?

Eddy Current Loss is usually measured using the Watt[W] for Power. Kilowatt[W], Milliwatt[W], Microwatt[W] are the few other units in which Eddy Current Loss can be measured.

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Eddy Current Loss Formula

Eddy Current Loss Example

Eddy Current Loss Solution

Eddy Current Loss Formula Elements

Other formulas in Losses category

How to Evaluate Eddy Current Loss?

FAQs on Eddy Current Loss

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