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

GoZero Sequence Current using B-Phase Voltage (LLGF) Formula

GoZero Sequence Current using C-Phase Voltage (LLGF) Formula

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Zero Sequence Current consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together. Check FAQs

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

I₀ - Zero Sequence Current?I₁ - Positive Sequence Current?Z₂ - Negative Sequence Impedance?Z₀ - Zero Sequence Impedance?Z_f - Fault Impedance?

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

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

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

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

-2.7802 = - 2.001 \cdot (\frac{-44.6}{8 + -44.6 + 3 \cdot 1.5})

-2.7802A = - 2.001A \cdot (\frac{-44.6Ω}{8Ω + -44.6Ω + 3 \cdot 1.5Ω})

-2.7802 = - 2.001 \cdot (\frac{-44.6}{8 + -44.6 + 3 \cdot 1.5})

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

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

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

I 0 = - 2.001A \cdot (\frac{-44.6Ω}{8Ω + -44.6Ω + 3 \cdot 1.5Ω})

Next Step Prepare to Evaluate

∴

I 0 = - 2.001 \cdot (\frac{-44.6}{8 + -44.6 + 3 \cdot 1.5})

Next Step Evaluate

∴

I 0 = -2.78020560747664A

LAST Step Rounding Answer

∴

I 0 = -2.7802A

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

Variables

Zero Sequence Current

Zero Sequence Current consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together.

Symbol: I₀

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Zero 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

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

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

Other Formulas to find Zero Sequence Current

Go Zero Sequence Current using B-Phase Voltage (LLGF)

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

Go Zero Sequence Current using C-Phase Voltage (LLGF)

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

Go Zero Sequence Current using Zero Sequence Voltage (LLGF)

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

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

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

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 Zero Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)?

Zero Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) evaluator uses Zero Sequence Current = -Positive Sequence Current*((Negative Sequence Impedance)/(Zero Sequence Impedance+Negative Sequence Impedance+3*Fault Impedance)) to evaluate the Zero Sequence Current, The Zero Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) formula consists of balanced three-phase voltage and current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ACB rotation. Zero Sequence Current is denoted by I₀ symbol.

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

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

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

The formula of Zero Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) is expressed as Zero Sequence Current = -Positive Sequence Current*((Negative Sequence Impedance)/(Zero Sequence Impedance+Negative Sequence Impedance+3*Fault Impedance)). Here is an example- -1.562953 = -2.001*(((-44.6))/(8+(-44.6)+3*1.5)).

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

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

What are the other ways to Calculate Zero Sequence Current?

Here are the different ways to Calculate Zero Sequence Current-

Zero Sequence Current=B Phase Voltage/(3*Fault Impedance)
Zero Sequence Current=C Phase Voltage/(3*Fault Impedance)
Zero Sequence Current=(-1)*Zero Sequence Voltage/Zero Sequence Impedance

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

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

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

Zero 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 Zero Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF) can be measured.

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

​GoZero Sequence Current using B-Phase Voltage (LLGF) Formula

​GoZero Sequence Current using C-Phase Voltage (LLGF) Formula

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

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

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

Other Formulas to find Zero Sequence Current

Other formulas in Current category

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

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

Variable Name

GoZero Sequence Current using B-Phase Voltage (LLGF) Formula

GoZero Sequence Current using C-Phase Voltage (LLGF) Formula