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

GoPositive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(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}{I 1} - (Z f + Z 2)

Z₁ - Positive Sequence Impedance?E_a - A Phase EMF?I₁ - Positive Sequence Current?Z_f - Fault Impedance?Z₂ - Negative Sequence Impedance?

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

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

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

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

57.7827 = \frac{29.38}{2.001} - (1.5 + -44.6)

57.7827Ω = \frac{29.38V}{2.001A} - (1.5Ω + -44.6Ω)

57.7827 = \frac{29.38}{2.001} - (1.5 + -44.6)

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

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

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

Z 1 = \frac{29.38V}{2.001A} - (1.5Ω + -44.6Ω)

Next Step Prepare to Evaluate

∴

Z 1 = \frac{29.38}{2.001} - (1.5 + -44.6)

Next Step Evaluate

∴

Z 1 = 57.7826586706647Ω

LAST Step Rounding Answer

∴

Z 1 = 57.7827Ω

Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(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 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

Fault Impedance

Fault Impedance is a measure of the resistance and reactance in an electrical circuit that is used to calculate the fault current that flows through the circuit in the event of a fault.

Symbol: Z_f

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Fault Impedance

Negative Sequence Impedance

Negative Sequence Impedance consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

Symbol: Z₂

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Negative Sequence Impedance

Other Formulas to find Positive Sequence Impedance

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

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

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 A-Phase EMF and Positive Sequence Current(LLF)?

Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF) evaluator uses Positive Sequence Impedance = A Phase EMF/Positive Sequence Current-(Fault Impedance+Negative Sequence Impedance) to evaluate the Positive Sequence Impedance, The Positive Sequence Impedance using A-phase EMF and Positive Sequence Current(LLF) 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 and Positive Sequence Current(LLF) using this online evaluator? To use this online evaluator for Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF), enter A Phase EMF (E_a), Positive Sequence Current (I₁), Fault Impedance (Z_f) & Negative Sequence Impedance (Z₂) and hit the calculate button.

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

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

The formula of Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF) is expressed as Positive Sequence Impedance = A Phase EMF/Positive Sequence Current-(Fault Impedance+Negative Sequence Impedance). Here is an example- -31.417341 = 29.38/2.001-(1.5+(-44.6)).

How to calculate Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF)?

With A Phase EMF (E_a), Positive Sequence Current (I₁), Fault Impedance (Z_f) & Negative Sequence Impedance (Z₂) we can find Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF) using the formula - Positive Sequence Impedance = A Phase EMF/Positive Sequence Current-(Fault Impedance+Negative Sequence Impedance).

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 Voltage)/Positive Sequence Current

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

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

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

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

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

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

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

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

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

Other Formulas to find Positive Sequence Impedance

Other formulas in Impedance category

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

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

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