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Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF) Formula

GoPositive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF) 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 Positive Sequence Voltage and A-Phase EMF(LLF) Example

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

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

Here is how the Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF) 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 Positive Sequence Voltage and A-Phase EMF(LLF) Solution

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

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 Positive Sequence Voltage and A-Phase EMF(LLF) 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 to find Positive Sequence Impedance

Go Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF)

Z 1 = \frac{E a}{I 1} - (Z f + Z 2)

Other formulas in Impedance category

Go Fault Impedance using Positive Sequence Current (LLF)

Z f = \frac{V 1 - V 2}{I 1}

Go Fault Impedance using A-Phase EMF(LLF)

Z f = \frac{E a}{I 1} - (Z 1 + Z 2)

How to Evaluate Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF)?

Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF) 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 Positive Sequence Voltage and A-phase EMF(LLF) formula is defined as the current that flows in one of the three phases of the power system, while the other two phases remain normal. Positive Sequence Impedance is denoted by Z₁ symbol.

How to evaluate Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF) using this online evaluator? To use this online evaluator for Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF), 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 Positive Sequence Voltage and A-Phase EMF(LLF)

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

The formula of Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF) 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 Positive Sequence Voltage and A-Phase EMF(LLF)?

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

What are the other ways to Calculate Positive Sequence Impedance?

Here are the different ways to Calculate Positive Sequence Impedance-

Positive Sequence Impedance=A Phase EMF/Positive Sequence Current-(Fault Impedance+Negative Sequence Impedance)

Can the Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF) be negative?

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

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

Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF) 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 Positive Sequence Voltage and A-Phase EMF(LLF) can be measured.

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