Efficiency of DC Machine Calculator

✖Generated Power refers to the amount of electrical power generated by power plants or renewable energy sources.ⓘ Generated Power [P_gen]			+10% -10%
✖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.ⓘ Output Power [P_o]			+10% -10%

✖Efficiency refers to the ratio of useful output or work obtained from a system or device to the input or energy supplied to it.ⓘ Efficiency of DC Machine [η]

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Formula

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Efficiency of DC Machine

Formula

`"η" = "P"_{"gen"}/"P"_{"o"}`

Example

`"0.666667"="400kW"/"600kW"`

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Efficiency of DC Machine Solution

STEP 0: Pre-Calculation Summary

Formula Used

Efficiency = Generated Power/Output Power
η = P_gen/P_o
This formula uses 3 Variables

Variables Used

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.
Generated Power - (Measured in Watt) - Generated Power refers to the amount of electrical power generated by power plants or renewable energy sources.
Output Power - (Measured in Watt) - 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.

STEP 1: Convert Input(s) to Base Unit

Generated Power: 400 Kilowatt --> 400000 Watt (Check conversion here)
Output Power: 600 Kilowatt --> 600000 Watt (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

η = P_gen/P_o --> 400000/600000

Evaluating ... ...

η = 0.666666666666667

STEP 3: Convert Result to Output's Unit

0.666666666666667 --> No Conversion Required

FINAL ANSWER

0.666666666666667 ≈ 0.666667 <-- Efficiency

(Calculation completed in 00.004 seconds)

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Home » Engineering » Electrical » Electrical Machine Design » DC Machines » Efficiency of DC Machine

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Created by Aman Dhussawat

GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY (GTBIT), NEW DELHI

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Verified by Parminder Singh

Chandigarh University (CU), Punjab

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< 19 DC Machines Calculators

Peripheral Speed of Armature using Limiting Value of Core Length

Go Peripheral Speed of Armature = (7.5)/(Specific Magnetic Loading*Limiting Value of Core Length*Turns per Coil*Number of Coils between Adjacent Segments)

Average Gap Density using Limiting Value of Core Length

Go Specific Magnetic Loading = (7.5)/(Limiting Value of Core Length*Peripheral Speed of Armature*Turns per Coil*Number of Coils between Adjacent Segments)

Limiting Value of Core Length

Go Limiting Value of Core Length = (7.5)/(Specific Magnetic Loading*Peripheral Speed of Armature*Turns per Coil*Number of Coils between Adjacent Segments)

Armature Core Length using Specific Magnetic Loading

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

Armature Diameter using Specific Magnetic Loading

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

Number of Poles using Specific Magnetic Loading

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

Flux per Pole using Specific Magnetic Loading

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

Area of Damper Winding

Go Area of Damper Winding = (0.2*Specific Electric Loading*Pole Pitch)/Current Density in Stator Conductor

Flux per Pole using Pole Pitch

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

Stator Conductor Cross Section Area

Go Stator Conductor Cross Section Area = Current in Conductor/Current Density in Stator Conductor

Specific Magnetic Loading using Output Coefficient DC

Go Specific Magnetic Loading = (Output Coefficient DC*1000)/(pi^2*Specific Electric Loading)

Output Coefficient DC

Go Output Coefficient DC = (pi^2*Specific Magnetic Loading*Specific Electric Loading)/1000

Number of Poles using Pole Pitch

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

Pole Pitch

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

Stator Conductors per Slot

Go Conductors per Slot = Number of Conductors/Number of Stator Slots

Number of Poles using Magnetic Loading

Go Number of Poles = Magnetic Loading/Flux per Pole

Flux per Pole using Magnetic Loading

Go Flux per Pole = Magnetic Loading/Number of Poles

Output Power of DC Machines

Go Output Power = Generated Power/Efficiency

Efficiency of DC Machine

Go Efficiency = Generated Power/Output Power

Efficiency of DC Machine Formula

Efficiency = Generated Power/Output Power
η = P_gen/P_o

What is work efficiency?

Work efficiency is the ability to get the most output from the least possible input. It means doing more with less. Working smarter, not harder. When you improve efficiency, you're able to get a larger output from the same amount of input – or even less.

How to Calculate Efficiency of DC Machine?

Efficiency of DC Machine calculator uses Efficiency = Generated Power/Output Power to calculate 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 calculate Efficiency of DC Machine using this online calculator? To use this online calculator for Efficiency of DC Machine, enter Generated Power (P_gen) & Output Power (P_o) and hit the calculate button. Here is how the Efficiency of DC Machine calculation can be explained with given input values -> 0.666667 = 400000/600000.

FAQ

What is Efficiency of DC Machine?

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 and is represented as η = P_gen/P_o or Efficiency = Generated Power/Output Power. Generated Power refers to the amount of electrical power generated by power plants or renewable energy sources & 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.

How to calculate Efficiency of DC Machine?

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 is calculated using Efficiency = Generated Power/Output Power. To calculate Efficiency of DC Machine, you need Generated Power (P_gen) & Output Power (P_o). With our tool, you need to enter the respective value for Generated Power & Output Power and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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