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Positive Sequence Impedance for L-G-F Formula

GoPositive Sequence Impedance using A-Phase EMF (LGF) Formula

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Positive Sequence Impedance LG consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation. Check FAQs

Z 1(lg) = \frac{E 1(lg) - V 1(lg)}{I 1(lg)}

Z_1(lg) - Positive Sequence Impedance LG?E_1(lg) - EMF Induced in Primary Winding LG?V_1(lg) - Positive Sequence Voltage LG?I_1(lg) - Positive Sequence Current LG?

Positive Sequence Impedance for L-G-F Example

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Here is how the Positive Sequence Impedance for L-G-F equation looks like with Values.

Here is how the Positive Sequence Impedance for L-G-F equation looks like with Units.

Here is how the Positive Sequence Impedance for L-G-F equation looks like.

1.4993 = \frac{20.5 - 17.5}{2.001}

1.4993Ω = \frac{20.5V - 17.5V}{2.001A}

1.4993 = \frac{20.5 - 17.5}{2.001}

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Positive Sequence Impedance for L-G-F Solution

Follow our step by step solution on how to calculate Positive Sequence Impedance for L-G-F?

FIRST Step Consider the formula

Z 1(lg) = \frac{E 1(lg) - V 1(lg)}{I 1(lg)}

Next Step Substitute values of Variables

∴

Z 1(lg) = \frac{20.5V - 17.5V}{2.001A}

Next Step Prepare to Evaluate

∴

Z 1(lg) = \frac{20.5 - 17.5}{2.001}

Next Step Evaluate

∴

Z 1(lg) = 1.49925037481259Ω

LAST Step Rounding Answer

∴

Z 1(lg) = 1.4993Ω

Positive Sequence Impedance for L-G-F Formula Elements

Variables

Positive Sequence Impedance LG

Positive Sequence Impedance LG consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.

Symbol: Z_1(lg)

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Positive Sequence Impedance LG

EMF Induced in Primary Winding LG

EMF Induced in Primary Winding LG is the production of voltage in a coil because of the change in magnetic flux through a coil.

Symbol: E_1(lg)

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find EMF Induced in Primary Winding LG

Positive Sequence Voltage LG

Positive Sequence Voltage LG consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.

Symbol: V_1(lg)

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Positive Sequence Voltage LG

Positive Sequence Current LG

Positive Sequence Current LG consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.

Symbol: I_1(lg)

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Positive Sequence Current LG

Other Formulas to find Positive Sequence Impedance LG

Go Positive Sequence Impedance using A-Phase EMF (LGF)

Z 1(lg) = (\frac{E 1(lg)}{I 1(lg)}) - (3 \cdot Z f(lg)) - Z 0(lg) - Z 2(lg)

Other formulas in Impedance category

Go Fault Impedance using A-Phase Voltage(LGF)

Z f(lg) = \frac{V a(lg)}{I a(lg)}

Go Zero Sequence Impedance for L-G-F

Z 0(lg) = (- 1) \cdot \frac{V 0(lg)}{I 0(lg)}

Go Zero Sequence Impedance using A-Phase EMF (LGF)

Z 0(lg) = (\frac{E 1(lg)}{I 0(lg)}) - (3 \cdot Z f(lg)) - Z 1(lg) - Z 2(lg)

Go Fault Impedance given Sequence Voltages(LGF)

Z f(lg) = \frac{V 0(lg) + V 1(lg) + V 2(lg)}{3 \cdot I 1(lg)}

How to Evaluate Positive Sequence Impedance for L-G-F?

Positive Sequence Impedance for L-G-F evaluator uses Positive Sequence Impedance LG = (EMF Induced in Primary Winding LG-Positive Sequence Voltage LG)/Positive Sequence Current LG to evaluate the Positive Sequence Impedance LG, The Positive Sequence Impedance for L-G-F formula is consists of balanced three-phase impedance phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ABC rotation. Positive Sequence Impedance LG is denoted by Z_1(lg) symbol.

How to evaluate Positive Sequence Impedance for L-G-F using this online evaluator? To use this online evaluator for Positive Sequence Impedance for L-G-F, enter EMF Induced in Primary Winding LG (E_1(lg)), Positive Sequence Voltage LG (V_1(lg)) & Positive Sequence Current LG (I_1(lg)) and hit the calculate button.

FAQs on Positive Sequence Impedance for L-G-F

What is the formula to find Positive Sequence Impedance for L-G-F?

The formula of Positive Sequence Impedance for L-G-F is expressed as Positive Sequence Impedance LG = (EMF Induced in Primary Winding LG-Positive Sequence Voltage LG)/Positive Sequence Current LG. Here is an example- 1.49925 = (20.5-17.5)/2.001.

How to calculate Positive Sequence Impedance for L-G-F?

With EMF Induced in Primary Winding LG (E_1(lg)), Positive Sequence Voltage LG (V_1(lg)) & Positive Sequence Current LG (I_1(lg)) we can find Positive Sequence Impedance for L-G-F using the formula - Positive Sequence Impedance LG = (EMF Induced in Primary Winding LG-Positive Sequence Voltage LG)/Positive Sequence Current LG.

What are the other ways to Calculate Positive Sequence Impedance LG?

Here are the different ways to Calculate Positive Sequence Impedance LG-

Positive Sequence Impedance LG=(EMF Induced in Primary Winding LG/Positive Sequence Current LG)-(3*Fault Impedance LG)-Zero Sequence Impedance LG-Negative Sequence Impedance LG

Can the Positive Sequence Impedance for L-G-F be negative?

No, the Positive Sequence Impedance for L-G-F, measured in Electric Resistance cannot be negative.

Which unit is used to measure Positive Sequence Impedance for L-G-F?

Positive Sequence Impedance for L-G-F is usually measured using the Ohm[Ω] for Electric Resistance. Megohm[Ω], Microhm[Ω], Volt per Ampere[Ω] are the few other units in which Positive Sequence Impedance for L-G-F can be measured.

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Positive Sequence Impedance for L-G-F Formula

​GoPositive Sequence Impedance using A-Phase EMF (LGF) Formula

Positive Sequence Impedance for L-G-F Example

Positive Sequence Impedance for L-G-F Solution

Positive Sequence Impedance for L-G-F Formula Elements

Other Formulas to find Positive Sequence Impedance LG

Other formulas in Impedance category

How to Evaluate Positive Sequence Impedance for L-G-F?

FAQs on Positive Sequence Impedance for L-G-F

Variable Name

GoPositive Sequence Impedance using A-Phase EMF (LGF) Formula