Back Pitch for DC Machine given Coil Span Calculator

✖Coil Span is defined as the length of the coil.ⓘ Coil Span [U]			+10% -10%
✖Coil Span Factor is defined as the peripheral distance between two sides of a coil, measured in terms of the number of armature slots between them. lt is also known as coil pitch.ⓘ Coil Span Factor [K_c]			+10% -10%

✖Back Pitch refers to the distance between two consecutive sides of a coil measured along the surface of the armature.ⓘ Back Pitch for DC Machine given Coil Span [Y_b]

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Formula

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Back Pitch for DC Machine given Coil Span

Formula

`"Y"_{"b"} = "U"*"K"_{"c"}`

Example

`"22.32"="2.79"*"8"`

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Back Pitch for DC Machine given Coil Span Solution

STEP 0: Pre-Calculation Summary

Formula Used

Back Pitch = Coil Span*Coil Span Factor
Y_b = U*K_c
This formula uses 3 Variables

Variables Used

Back Pitch - Back Pitch refers to the distance between two consecutive sides of a coil measured along the surface of the armature.
Coil Span - Coil Span is defined as the length of the coil.
Coil Span Factor - Coil Span Factor is defined as the peripheral distance between two sides of a coil, measured in terms of the number of armature slots between them. lt is also known as coil pitch.

STEP 1: Convert Input(s) to Base Unit

Coil Span: 2.79 --> No Conversion Required
Coil Span Factor: 8 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Y_b = U*K_c --> 2.79*8

Evaluating ... ...

Y_b = 22.32

STEP 3: Convert Result to Output's Unit

22.32 --> No Conversion Required

FINAL ANSWER

22.32 <-- Back Pitch

(Calculation completed in 00.004 seconds)

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Created by Prahalad Singh

Jaipur Engineering College and Research Centre (JECRC), Jaipur

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< 16 DC Machine Characterstics Calculators

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Go Mechanical Efficiency = (Electrical Efficiency*Output Voltage*Armature Current)/(Angular Speed*Torque)

Electrical Efficiency of DC Machine

Go Electrical Efficiency = (Mechanical Efficiency*Angular Speed*Torque)/(Output Voltage*Armature Current)

Design Constant of DC Machine

Go Machine Constant = (Number of Conductors*Number of Poles)/(2*pi*Number of Parallel Paths)

Angular Speed of DC Machine using Kf

Go Angular Speed = Armature Voltage/(Machine Constant*Magnetic Flux*Armature Current)

Armature Induced Voltage of DC Machine given Kf

Go Armature Voltage = Machine Constant*Armature Current*Magnetic Flux*Angular Speed

Back EMF of DC Generator

Go Back EMF = Output Voltage-(Armature Current*Armature Resistance)

Magnetic Flux of DC Machine given Torque

Go Magnetic Flux = Torque/(Machine Constant*Armature Current)

EMF Generated in DC Machine with Lap Winding

Go EMF = (Rotor Speed*Number of Conductors*Flux per Pole)/60

Torque generated in DC Machine

Go Torque = Machine Constant*Magnetic Flux*Armature Current

Coil Span of DC Motor

Go Coil Span Factor = Number of Commutator Segments/Number of Poles

Front Pitch for DC Machine

Go Front Pitch = ((2*Number of Slots)/Number of Poles)-1

Back Pitch for DC Machine

Go Back Pitch = ((2*Number of Slots)/Number of Poles)+1

Input Power of DC Motor

Go Input Power = Supply Voltage*Armature Current

Pole Pitch in DC Generator

Go Pole Pitch = Number of Slots/Number of Poles

Back Pitch for DC Machine given Coil Span

Go Back Pitch = Coil Span*Coil Span Factor

Output Power of DC Machine

Go Output Power = Angular Speed*Torque

Back Pitch for DC Machine given Coil Span Formula

Back Pitch = Coil Span*Coil Span Factor
Y_b = U*K_c

What are the functions of no-load current in a transformer?

The functions of no-load current in a transformer is that No-load current produces flux and supplies iron loss and copper loss on no-load.

How to Calculate Back Pitch for DC Machine given Coil Span?

Back Pitch for DC Machine given Coil Span calculator uses Back Pitch = Coil Span*Coil Span Factor to calculate the Back Pitch, Back Pitch for DC Machine given Coil Span is defined as the number of armature slots spanned by a coil side, measured from the center of one coil side to the center of the next adjacent coil side. Back Pitch is denoted by Y_b symbol.

How to calculate Back Pitch for DC Machine given Coil Span using this online calculator? To use this online calculator for Back Pitch for DC Machine given Coil Span, enter Coil Span (U) & Coil Span Factor (K_c) and hit the calculate button. Here is how the Back Pitch for DC Machine given Coil Span calculation can be explained with given input values -> 22.32 = 2.79*8.

FAQ

What is Back Pitch for DC Machine given Coil Span?

Back Pitch for DC Machine given Coil Span is defined as the number of armature slots spanned by a coil side, measured from the center of one coil side to the center of the next adjacent coil side and is represented as Y_b = U*K_c or Back Pitch = Coil Span*Coil Span Factor. Coil Span is defined as the length of the coil & Coil Span Factor is defined as the peripheral distance between two sides of a coil, measured in terms of the number of armature slots between them. lt is also known as coil pitch.

How to calculate Back Pitch for DC Machine given Coil Span?

Back Pitch for DC Machine given Coil Span is defined as the number of armature slots spanned by a coil side, measured from the center of one coil side to the center of the next adjacent coil side is calculated using Back Pitch = Coil Span*Coil Span Factor. To calculate Back Pitch for DC Machine given Coil Span, you need Coil Span (U) & Coil Span Factor (K_c). With our tool, you need to enter the respective value for Coil Span & Coil Span Factor 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 Back Pitch?

In this formula, Back Pitch uses Coil Span & Coil Span Factor. We can use 1 other way(s) to calculate the same, which is/are as follows -

Back Pitch = ((2*Number of Slots)/Number of Poles)+1

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