MMF of Damper Winding Calculator

✖Specific Electric Loading is defined as the electric loading/unit length of armature periphery and is denoted by "q".ⓘ Specific Electric Loading [q_av]			+10% -10%
✖Pole pitch is defined as the peripheral distance between the center of two adjacent poles in a DC machine.ⓘ Pole Pitch [Y_p]			+10% -10%

✖MMF of Damper Winding When the current flows through the armature winding of the alternator, a flux is produced by the resulting MMF.ⓘ MMF of Damper Winding [MMF_d]

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Formula

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MMF of Damper Winding

Formula

`"MMF"_{"d"} = 0.143*"q"_{"av"}*"Y"_{"p"}`

Example

`"10.50848AT"=0.143*"187.464Ac/m"*"0.392m"`

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MMF of Damper Winding Solution

STEP 0: Pre-Calculation Summary

Formula Used

MMF of Damper Winding = 0.143*Specific Electric Loading*Pole Pitch
MMF_d = 0.143*q_av*Y_p
This formula uses 3 Variables

Variables Used

MMF of Damper Winding - (Measured in Ampere-Turn) - MMF of Damper Winding When the current flows through the armature winding of the alternator, a flux is produced by the resulting MMF.
Specific Electric Loading - (Measured in Ampere Conductor per Meter) - Specific Electric Loading is defined as the electric loading/unit length of armature periphery and is denoted by "q".
Pole Pitch - (Measured in Meter) - Pole pitch is defined as the peripheral distance between the center of two adjacent poles in a DC machine.

STEP 1: Convert Input(s) to Base Unit

Specific Electric Loading: 187.464 Ampere Conductor per Meter --> 187.464 Ampere Conductor per Meter No Conversion Required
Pole Pitch: 0.392 Meter --> 0.392 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

MMF_d = 0.143*q_av*Y_p --> 0.143*187.464*0.392

Evaluating ... ...

MMF_d = 10.508481984

STEP 3: Convert Result to Output's Unit

10.508481984 Ampere-Turn --> No Conversion Required

FINAL ANSWER

10.508481984 ≈ 10.50848 Ampere-Turn <-- MMF of Damper Winding

(Calculation completed in 00.004 seconds)

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< 8 Magnetic Parameters Calculators

Specific Magnetic Loading

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

Specific Magnetic Loading using Output Coefficient AC

Go Specific Magnetic Loading = (Output Coefficient AC*1000)/(11*Specific Electric Loading*Winding Factor)

Flux per Pole using Pole Pitch

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

Pole Pitch

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

MMF of Damper Winding

Go MMF of Damper Winding = 0.143*Specific Electric Loading*Pole Pitch

Full Load Field MMF

Go Full Load Field MMF = Field Current*Turns per Coil

Magnetic Loading

Go Magnetic Loading = Number of Poles*Flux per Pole

Pole Arc

Go Pole Arc = Number of Damper Bar*0.8*Slot Pitch

MMF of Damper Winding Formula

MMF of Damper Winding = 0.143*Specific Electric Loading*Pole Pitch
MMF_d = 0.143*q_av*Y_p

Why is it called damper winding?

Synchronous motors
usually referred to as a damper winding because of its additional property of damping out any oscillation that might be caused by sudden changes in the load on the rotor when in synchronism.

What is the formula of MMF?

Magnetomotive force (mmf), Fm = NI ampere-turns (At), where N = number of conductors (or turns) and I = current in amperes. Since 'turns' has no units, the SI unit of mmf is the ampere, but to avoid any possible confusion 'ampere-turns', (A t).

How to Calculate MMF of Damper Winding?

MMF of Damper Winding calculator uses MMF of Damper Winding = 0.143*Specific Electric Loading*Pole Pitch to calculate the MMF of Damper Winding, The MMF of damper Winding is when the current flows through the damper winding of the alternator, a flux is produced by the resulting MMF. The MMF (magnetomotive force) of a damper winding is the measure of the magnetic field strength generated by the damper winding in an electrical machine. The damper winding is typically used in synchronous machines, such as synchronous generators or synchronous motors, to dampen oscillations and stabilize the rotor. MMF of Damper Winding is denoted by MMF_d symbol.

How to calculate MMF of Damper Winding using this online calculator? To use this online calculator for MMF of Damper Winding, enter Specific Electric Loading (q_av) & Pole Pitch (Y_p) and hit the calculate button. Here is how the MMF of Damper Winding calculation can be explained with given input values -> 10.50848 = 0.143*187.464*0.392.

FAQ

What is MMF of Damper Winding?

The MMF of damper Winding is when the current flows through the damper winding of the alternator, a flux is produced by the resulting MMF. The MMF (magnetomotive force) of a damper winding is the measure of the magnetic field strength generated by the damper winding in an electrical machine. The damper winding is typically used in synchronous machines, such as synchronous generators or synchronous motors, to dampen oscillations and stabilize the rotor and is represented as MMF_d = 0.143*q_av*Y_p or MMF of Damper Winding = 0.143*Specific Electric Loading*Pole Pitch. Specific Electric Loading is defined as the electric loading/unit length of armature periphery and is denoted by "q" & Pole pitch is defined as the peripheral distance between the center of two adjacent poles in a DC machine.

How to calculate MMF of Damper Winding?

The MMF of damper Winding is when the current flows through the damper winding of the alternator, a flux is produced by the resulting MMF. The MMF (magnetomotive force) of a damper winding is the measure of the magnetic field strength generated by the damper winding in an electrical machine. The damper winding is typically used in synchronous machines, such as synchronous generators or synchronous motors, to dampen oscillations and stabilize the rotor is calculated using MMF of Damper Winding = 0.143*Specific Electric Loading*Pole Pitch. To calculate MMF of Damper Winding, you need Specific Electric Loading (q_av) & Pole Pitch (Y_p). With our tool, you need to enter the respective value for Specific Electric Loading & Pole Pitch 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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