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Average Field Voltage of Three Phase Semi-Converter Drive Formula

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Semi Drive Field Voltage in Three Phase is the average voltage developed at the field winding of the DC semi converter drive. Check FAQs

V f(semi_3p) = \frac{3 \cdot V m \cdot (1 + \cos (α))}{2 \cdot π}

V_{f(semi_3p)} - Semi Drive Field Voltage in Three Phase?V_m - Peak Input Voltage?α - Delay Angle of Thyristor?π - Archimedes' constant?

Average Field Voltage of Three Phase Semi-Converter Drive Example

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Here is how the Average Field Voltage of Three Phase Semi-Converter Drive equation looks like with Values.

Here is how the Average Field Voltage of Three Phase Semi-Converter Drive equation looks like with Units.

Here is how the Average Field Voltage of Three Phase Semi-Converter Drive equation looks like.

140.9688 = \frac{3 \cdot 220 \cdot (1 + \cos (70))}{2 \cdot 3.1416}

140.9688V = \frac{3 \cdot 220V \cdot (1 + \cos (70°))}{2 \cdot 3.1416}

140.9688 = \frac{3 \cdot 220 \cdot (1 + \cos (70))}{2 \cdot 3.1416}

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Average Field Voltage of Three Phase Semi-Converter Drive Solution

Follow our step by step solution on how to calculate Average Field Voltage of Three Phase Semi-Converter Drive?

FIRST Step Consider the formula

V f(semi_3p) = \frac{3 \cdot V m \cdot (1 + \cos (α))}{2 \cdot π}

Next Step Substitute values of Variables

∴

V f(semi_3p) = \frac{3 \cdot 220V \cdot (1 + \cos (70°))}{2 \cdot π}

Next Step Substitute values of Constants

∴

V f(semi_3p) = \frac{3 \cdot 220V \cdot (1 + \cos (70°))}{2 \cdot 3.1416}

Next Step Convert Units

∴

V f(semi_3p) = \frac{3 \cdot 220V \cdot (1 + \cos (1.2217rad))}{2 \cdot 3.1416}

Next Step Prepare to Evaluate

∴

V f(semi_3p) = \frac{3 \cdot 220 \cdot (1 + \cos (1.2217))}{2 \cdot 3.1416}

Next Step Evaluate

∴

V f(semi_3p) = 140.968832095878V

LAST Step Rounding Answer

∴

V f(semi_3p) = 140.9688V

Average Field Voltage of Three Phase Semi-Converter Drive Formula Elements

Variables

Constants

Functions

Semi Drive Field Voltage in Three Phase

Semi Drive Field Voltage in Three Phase is the average voltage developed at the field winding of the DC semi converter drive.

Symbol: V_{f(semi_3p)}

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Semi Drive Field Voltage in Three Phase

Peak Input Voltage

Peak input voltage is the peak value of the sinusoidal input voltage V_msin(wt) to the converter drive.

Symbol: V_m

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Peak Input Voltage

Delay Angle of Thyristor

Delay Angle of Thyristor is the angle at which thyristors are triggered after zero crossing.

Symbol: α

Measurement: AngleUnit: °

Note: Value can be positive or negative.

Formulas to find Delay Angle of Thyristor

Archimedes' constant

Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.

Symbol: π

Value: 3.14159265358979323846264338327950288

cos

Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle.

Syntax: cos(Angle)

Other formulas in Three Phase Drives category

Go Average Armature Voltage of Three Phase Full-Converter Drives

V a(full_3p) = \frac{3 \cdot \sqrt{3} \cdot V m \cdot \cos (α)}{π}

Go Maximum Torque in Induction Motor Drives

ζ max = (\frac{3}{2 \cdot ω s}) \cdot \frac{{V 1}^{2}}{r 1 + \sqrt{{r 1}^{2} + {(x 1 + x 2)}^{2}}}

Go Air Gap Power in Three Phase Induction Motor Drives

P g = 3 \cdot {I 2}^{2} \cdot (\frac{r 2}{s})

Go Armature Terminal Voltage in Half-Wave Converter Drives

V o = (\frac{3 \cdot V ml}{2 \cdot π}) \cdot \cos (α)

How to Evaluate Average Field Voltage of Three Phase Semi-Converter Drive?

Average Field Voltage of Three Phase Semi-Converter Drive evaluator uses Semi Drive Field Voltage in Three Phase = (3*Peak Input Voltage*(1+cos(Delay Angle of Thyristor)))/(2*pi) to evaluate the Semi Drive Field Voltage in Three Phase, The Average Field Voltage of Three Phase Semi-Converter Drive formula is the average voltage developed at the terminals of the armature of the DC motor drive. in the above formula, the delay angle of the field thyristor (α_f) is considered. Semi Drive Field Voltage in Three Phase is denoted by V_{f(semi_3p)} symbol.

How to evaluate Average Field Voltage of Three Phase Semi-Converter Drive using this online evaluator? To use this online evaluator for Average Field Voltage of Three Phase Semi-Converter Drive, enter Peak Input Voltage (V_m) & Delay Angle of Thyristor (α) and hit the calculate button.

FAQs on Average Field Voltage of Three Phase Semi-Converter Drive

What is the formula to find Average Field Voltage of Three Phase Semi-Converter Drive?

The formula of Average Field Voltage of Three Phase Semi-Converter Drive is expressed as Semi Drive Field Voltage in Three Phase = (3*Peak Input Voltage*(1+cos(Delay Angle of Thyristor)))/(2*pi). Here is an example- 140.9688 = (3*220*(1+cos(1.2217304763958)))/(2*pi).

How to calculate Average Field Voltage of Three Phase Semi-Converter Drive?

With Peak Input Voltage (V_m) & Delay Angle of Thyristor (α) we can find Average Field Voltage of Three Phase Semi-Converter Drive using the formula - Semi Drive Field Voltage in Three Phase = (3*Peak Input Voltage*(1+cos(Delay Angle of Thyristor)))/(2*pi). This formula also uses Archimedes' constant and Cosine (cos) function(s).

Can the Average Field Voltage of Three Phase Semi-Converter Drive be negative?

Yes, the Average Field Voltage of Three Phase Semi-Converter Drive, measured in Electric Potential can be negative.

Which unit is used to measure Average Field Voltage of Three Phase Semi-Converter Drive?

Average Field Voltage of Three Phase Semi-Converter Drive is usually measured using the Volt[V] for Electric Potential. Millivolt[V], Microvolt[V], Nanovolt[V] are the few other units in which Average Field Voltage of Three Phase Semi-Converter Drive can be measured.

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