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Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) Formula

GoNegative Sequence Current using Negative Sequence Voltage (LLGF) Formula

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Negative Sequence Current consists of balanced three-phase current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation. Check FAQs

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

I₂ - Negative Sequence Current?I₁ - Positive Sequence Current?Z₀ - Zero Sequence Impedance?Z_f - Fault Impedance?Z₂ - Negative Sequence Impedance?

Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) Example

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Here is how the Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) equation looks like with Values.

Here is how the Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) equation looks like with Units.

Here is how the Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) equation looks like.

0.7792 = - 2.001 \cdot (\frac{8 + 3 \cdot 1.5}{8 + -44.6 + 3 \cdot 1.5})

0.7792A = - 2.001A \cdot (\frac{8Ω + 3 \cdot 1.5Ω}{8Ω + -44.6Ω + 3 \cdot 1.5Ω})

0.7792 = - 2.001 \cdot (\frac{8 + 3 \cdot 1.5}{8 + -44.6 + 3 \cdot 1.5})

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Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) Solution

Follow our step by step solution on how to calculate Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

I 2 = - 2.001A \cdot (\frac{8Ω + 3 \cdot 1.5Ω}{8Ω + -44.6Ω + 3 \cdot 1.5Ω})

Next Step Prepare to Evaluate

∴

I 2 = - 2.001 \cdot (\frac{8 + 3 \cdot 1.5}{8 + -44.6 + 3 \cdot 1.5})

Next Step Evaluate

∴

I 2 = 0.779205607476635A

LAST Step Rounding Answer

∴

I 2 = 0.7792A

Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) Formula Elements

Variables

Negative Sequence Current

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

Symbol: I₂

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Negative Sequence Current

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

Zero Sequence Impedance

Zero Sequence Impedance consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counter clockwise together.

Symbol: Z₀

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Zero Sequence Impedance

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 Negative Sequence Current

Go Negative Sequence Current using Negative Sequence Voltage (LLGF)

I 2 = (- 1) \cdot \frac{V 2}{Z 2}

Other formulas in Current category

Go B-Phase Current (LLGF)

I b = I f - I c

Go C-Phase Current (LLGF)

I c = I f - I b

Go Fault Current (LLGF)

I f = I b + I c

Go Fault Current using B-Phase Voltage (LLGF)

I f = \frac{V b}{Z f}

How to Evaluate Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)?

Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) evaluator uses Negative Sequence Current = -Positive Sequence Current*((Zero Sequence Impedance+3*Fault Impedance)/(Zero Sequence Impedance+Negative Sequence Impedance+3*Fault Impedance)) to evaluate the Negative Sequence Current, The Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) formula is defined as a concept in electrical engineering that refers to the flow of electric current in a three-phase power system where all three phases have the same magnitude and are equally spaced in phase angle. Negative Sequence Current is denoted by I₂ symbol.

How to evaluate Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) using this online evaluator? To use this online evaluator for Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF), enter Positive Sequence Current (I₁), Zero Sequence Impedance (Z₀), Fault Impedance (Z_f) & Negative Sequence Impedance (Z₂) and hit the calculate button.

FAQs on Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)

What is the formula to find Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)?

The formula of Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) is expressed as Negative Sequence Current = -Positive Sequence Current*((Zero Sequence Impedance+3*Fault Impedance)/(Zero Sequence Impedance+Negative Sequence Impedance+3*Fault Impedance)). Here is an example- -0.438047 = -2.001*((8+3*1.5)/(8+(-44.6)+3*1.5)).

How to calculate Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)?

With Positive Sequence Current (I₁), Zero Sequence Impedance (Z₀), Fault Impedance (Z_f) & Negative Sequence Impedance (Z₂) we can find Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) using the formula - Negative Sequence Current = -Positive Sequence Current*((Zero Sequence Impedance+3*Fault Impedance)/(Zero Sequence Impedance+Negative Sequence Impedance+3*Fault Impedance)).

What are the other ways to Calculate Negative Sequence Current?

Here are the different ways to Calculate Negative Sequence Current-

Negative Sequence Current=(-1)*Negative Sequence Voltage/Negative Sequence Impedance

Can the Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) be negative?

Yes, the Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF), measured in Electric Current can be negative.

Which unit is used to measure Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)?

Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) is usually measured using the Ampere[A] for Electric Current. Milliampere[A], Microampere[A], Centiampere[A] are the few other units in which Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) can be measured.

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Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) Formula

​GoNegative Sequence Current using Negative Sequence Voltage (LLGF) Formula

Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) Example

Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) Solution

Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) Formula Elements

Other Formulas to find Negative Sequence Current

Other formulas in Current category

How to Evaluate Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)?

FAQs on Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)

Variable Name

GoNegative Sequence Current using Negative Sequence Voltage (LLGF) Formula