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Efficiency of Transformer Formula

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Efficiency can be defined as the ability to achieve an end goal with little to no waste, effort, or energy. Check FAQs

η = \frac{P out}{P in}

η - Efficiency?P_out - Output Power?P_in - Input Power?

Efficiency of Transformer Example

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Here is how the Efficiency of Transformer equation looks like with Values.

Here is how the Efficiency of Transformer equation looks like with Units.

Here is how the Efficiency of Transformer equation looks like.

0.8889 = \frac{120}{135}

0.8889 = \frac{120kW}{135kW}

0.8889 = \frac{120}{135}

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Efficiency of Transformer Solution

Follow our step by step solution on how to calculate Efficiency of Transformer?

FIRST Step Consider the formula

η = \frac{P out}{P in}

Next Step Substitute values of Variables

∴

η = \frac{120kW}{135kW}

Next Step Convert Units

∴

η = \frac{120000W}{135000W}

Next Step Prepare to Evaluate

∴

η = \frac{120000}{135000}

Next Step Evaluate

∴

η = 0.888888888888889

LAST Step Rounding Answer

∴

η = 0.8889

Efficiency of Transformer Formula Elements

Variables

Efficiency

Efficiency can be defined as the ability to achieve an end goal with little to no waste, effort, or energy.

Symbol: η

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Efficiency

Output Power

Output power is the power delivered to the load after losses.

Symbol: P_out

Measurement: PowerUnit: kW

Note: Value should be greater than 0.

Formulas to find Output Power

Input Power

Input power. Means the product of the direct voltage applied to the last radio stage and the total direct current flowing to the last radio stage, measured without modulation.

Symbol: P_in

Measurement: PowerUnit: kW

Note: Value should be greater than 0.

Formulas to find Input Power

Other formulas in Transformer Circuit category

Go Equivalent Reactance of Transformer from Primary Side

X 01 = X L1 + X' 2

Go Equivalent Reactance of Transformer from Secondary Side

X 02 = X L2 + X' 1

Go Primary Leakage Reactance

X L1 = \frac{X' 1}{K^{2}}

Go Reactance of Primary Winding in Secondary

X' 1 = X L1 \cdot K^{2}

How to Evaluate Efficiency of Transformer?

Efficiency of Transformer evaluator uses Efficiency = Output Power/Input Power to evaluate the Efficiency, Efficiency of Transformer is the ratio of output power to the input power of transformer.It describes how much power is lost while voltage conversion. Efficiency is denoted by η symbol.

How to evaluate Efficiency of Transformer using this online evaluator? To use this online evaluator for Efficiency of Transformer, enter Output Power (P_out) & Input Power (P_in) and hit the calculate button.

FAQs on Efficiency of Transformer

What is the formula to find Efficiency of Transformer?

The formula of Efficiency of Transformer is expressed as Efficiency = Output Power/Input Power. Here is an example- 0.888889 = 120000/135000.

How to calculate Efficiency of Transformer?

With Output Power (P_out) & Input Power (P_in) we can find Efficiency of Transformer using the formula - Efficiency = Output Power/Input Power.

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