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Positive Sequence Impedance using A-Phase EMF(LLGF) Formula

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Positive Sequence Impedance 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 = \frac{E a - V 1}{I 1}

Z₁ - Positive Sequence Impedance?E_a - A Phase EMF?V₁ - Positive Sequence Voltage?I₁ - Positive Sequence Current?

Positive Sequence Impedance using A-Phase EMF(LLGF) Example

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Here is how the Positive Sequence Impedance using A-Phase EMF(LLGF) equation looks like with Values.

Here is how the Positive Sequence Impedance using A-Phase EMF(LLGF) equation looks like with Units.

Here is how the Positive Sequence Impedance using A-Phase EMF(LLGF) equation looks like.

5.937 = \frac{29.38 - 17.5}{2.001}

5.937Ω = \frac{29.38V - 17.5V}{2.001A}

5.937 = \frac{29.38 - 17.5}{2.001}

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Positive Sequence Impedance using A-Phase EMF(LLGF) Solution

Follow our step by step solution on how to calculate Positive Sequence Impedance using A-Phase EMF(LLGF)?

FIRST Step Consider the formula

Z 1 = \frac{E a - V 1}{I 1}

Next Step Substitute values of Variables

∴

Z 1 = \frac{29.38V - 17.5V}{2.001A}

Next Step Prepare to Evaluate

∴

Z 1 = \frac{29.38 - 17.5}{2.001}

Next Step Evaluate

∴

Z 1 = 5.93703148425787Ω

LAST Step Rounding Answer

∴

Z 1 = 5.937Ω

Positive Sequence Impedance using A-Phase EMF(LLGF) Formula Elements

Variables

Positive Sequence Impedance

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

Symbol: Z₁

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Positive Sequence Impedance

A Phase EMF

A phase EMF is defined as the electromagnetic force of the a-phase in open conductor fault.

Symbol: E_a

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find A Phase EMF

Positive Sequence Voltage

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

Symbol: V₁

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Positive Sequence Voltage

Positive Sequence Current

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

Symbol: I₁

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Positive Sequence Current

Other formulas in Impedance category

Go Fault Impedance using Sequence Voltages and Zero Sequence Current(LLGF)

Z f = \frac{V 0 - V 1}{3 \cdot I 0}

Go Zero Sequence Impedance(LLGF)

Z 0 = - \frac{V 0}{I 0}

Go Negative Sequence Impedance(LLGF)

Z 2 = - \frac{V 2}{I 2}

Go Fault Impedance using C-Phase Voltage (LLGF)

Z f = \frac{V c}{3 \cdot I 0}

How to Evaluate Positive Sequence Impedance using A-Phase EMF(LLGF)?

Positive Sequence Impedance using A-Phase EMF(LLGF) evaluator uses Positive Sequence Impedance = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Current to evaluate the Positive Sequence Impedance, The Positive Sequence Impedance using A-phase EMF(LLGF) formula is defined as a measure of the impedance of a three-phase electrical power system with respect to the positive sequence components of the system. Positive Sequence Impedance is denoted by Z₁ symbol.

How to evaluate Positive Sequence Impedance using A-Phase EMF(LLGF) using this online evaluator? To use this online evaluator for Positive Sequence Impedance using A-Phase EMF(LLGF), enter A Phase EMF (E_a), Positive Sequence Voltage (V₁) & Positive Sequence Current (I₁) and hit the calculate button.

FAQs on Positive Sequence Impedance using A-Phase EMF(LLGF)

What is the formula to find Positive Sequence Impedance using A-Phase EMF(LLGF)?

The formula of Positive Sequence Impedance using A-Phase EMF(LLGF) is expressed as Positive Sequence Impedance = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Current. Here is an example- 7.936032 = (29.38-17.5)/2.001.

How to calculate Positive Sequence Impedance using A-Phase EMF(LLGF)?

With A Phase EMF (E_a), Positive Sequence Voltage (V₁) & Positive Sequence Current (I₁) we can find Positive Sequence Impedance using A-Phase EMF(LLGF) using the formula - Positive Sequence Impedance = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Current.

Can the Positive Sequence Impedance using A-Phase EMF(LLGF) be negative?

No, the Positive Sequence Impedance using A-Phase EMF(LLGF), measured in Electric Resistance cannot be negative.

Which unit is used to measure Positive Sequence Impedance using A-Phase EMF(LLGF)?

Positive Sequence Impedance using A-Phase EMF(LLGF) 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 using A-Phase EMF(LLGF) can be measured.

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