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Efficiency of DC Machine Formula

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Efficiency refers to the ratio of useful output or work obtained from a system or device to the input or energy supplied to it. Check FAQs

η = \frac{P gen}{P o}

η - Efficiency?P_gen - Generated Power?P_o - Output Power?

Efficiency of DC Machine Example

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With units

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

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

Here is how the Efficiency of DC Machine equation looks like.

0.6667 = \frac{400}{600}

0.6667 = \frac{400kW}{600kW}

0.6667 = \frac{400}{600}

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Efficiency of DC Machine Solution

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

FIRST Step Consider the formula

η = \frac{P gen}{P o}

Next Step Substitute values of Variables

∴

η = \frac{400kW}{600kW}

Next Step Convert Units

∴

η = \frac{400000W}{600000W}

Next Step Prepare to Evaluate

∴

η = \frac{400000}{600000}

Next Step Evaluate

∴

η = 0.666666666666667

LAST Step Rounding Answer

∴

η = 0.6667

Efficiency of DC Machine Formula Elements

Variables

Efficiency

Efficiency refers to the ratio of useful output or work obtained from a system or device to the input or energy supplied to it.

Symbol: η

Measurement: NAUnit: Unitless

Note: Value should be between 0 to 1.

Formulas to find Efficiency

Generated Power

Generated Power refers to the amount of electrical power generated by power plants or renewable energy sources.

Symbol: P_gen

Measurement: PowerUnit: kW

Note: Value should be greater than 0.

Formulas to find Generated Power

Output Power

The output power of a synchronous machine refers to the electrical power that it can deliver or generate. It is the power that is transferred from the machine to an external load or system.

Symbol: P_o

Measurement: PowerUnit: kW

Note: Value should be greater than 0.

Formulas to find Output Power

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 Number of Poles using Magnetic Loading

n = \frac{B}{Φ}

How to Evaluate Efficiency of DC Machine?

Efficiency of DC Machine evaluator uses Efficiency = Generated Power/Output Power to evaluate the Efficiency, The Efficiency of DC Machine formula is defined as the generated power upon output power are measured under similar conditions and represent the design specifications of the system or device. Efficiency is an important factor to consider when designing systems or devices because higher efficiency generally indicates better utilization of resources and reduced waste. Designing for high efficiency can lead to energy savings, cost reduction, and improved performance. Efficiency is denoted by η symbol.

How to evaluate Efficiency of DC Machine using this online evaluator? To use this online evaluator for Efficiency of DC Machine, enter Generated Power (P_gen) & Output Power (P_o) and hit the calculate button.

FAQs on Efficiency of DC Machine

What is the formula to find Efficiency of DC Machine?

The formula of Efficiency of DC Machine is expressed as Efficiency = Generated Power/Output Power. Here is an example- 0.666667 = 400000/600000.

How to calculate Efficiency of DC Machine?

With Generated Power (P_gen) & Output Power (P_o) we can find Efficiency of DC Machine using the formula - Efficiency = Generated Power/Output Power.

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