Zero Sequence Current for L-G-F Calculator

✖Zero Sequence Voltage LG consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counterclockwise together.ⓘ Zero Sequence Voltage LG [V_0(lg)]			+10% -10%
✖Zero Sequence Impedance LG consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counter clockwise together.ⓘ Zero Sequence Impedance LG [Z_0(lg)]			+10% -10%

✖Zero Sequence Current LG consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together.ⓘ Zero Sequence Current for L-G-F [I_0(lg)]

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Zero Sequence Current for L-G-F Solution

STEP 0: Pre-Calculation Summary

Formula Used

Zero Sequence Current LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Impedance LG
I_0(lg) = (-1)*V_0(lg)/Z_0(lg)
This formula uses 3 Variables

Variables Used

Zero Sequence Current LG - (Measured in Ampere) - Zero Sequence Current LG consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together.
Zero Sequence Voltage LG - (Measured in Volt) - Zero Sequence Voltage LG consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counterclockwise together.
Zero Sequence Impedance LG - (Measured in Ohm) - Zero Sequence Impedance LG consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counter clockwise together.

STEP 1: Convert Input(s) to Base Unit

Zero Sequence Voltage LG: 17.6 Volt --> 17.6 Volt No Conversion Required
Zero Sequence Impedance LG: 8 Ohm --> 8 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_0(lg) = (-1)*V_0(lg)/Z_0(lg) --> (-1)*17.6/8

Evaluating ... ...

I_0(lg) = -2.2

STEP 3: Convert Result to Output's Unit

-2.2 Ampere --> No Conversion Required

FINAL ANSWER

-2.2 Ampere <-- Zero Sequence Current LG

(Calculation completed in 00.004 seconds)

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Home » Engineering » Electrical » Power System » Fault » Shunt Faults » Unsymmetrical Faults » L G Fault » Current » Zero Sequence Current for L-G-F

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< Current Calculators

Positive Sequence Current using Fault Impedance(LGF)

LaTeX Go Positive Sequence Current LG = (Positive Sequence Voltage LG+Negative Sequence Voltage LG+Zero Sequence Voltage LG)/(3*Fault Impedance LG)

A-Phase Current using Positive Sequence Current (LGF)

LaTeX Go A-Phase Current LG = Positive Sequence Current LG*3

A-Phase Current using Negative Sequence Current (LGF)

LaTeX Go A-Phase Current LG = 3*Negative Sequence Current LG

A-Phase Current using Zero Sequence Current (LGF)

LaTeX Go A-Phase Current LG = Zero Sequence Current LG*3

Zero Sequence Current for L-G-F Formula

LaTeX Go

Zero Sequence Current LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Impedance LG
I_0(lg) = (-1)*V_0(lg)/Z_0(lg)

What are the Sequence Components?

The positive sequence consists of balanced three-phase voltage and current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ABC rotation. The negative sequence consists of balanced three-phase voltage and current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ACB rotation. Zero sequence consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counterclockwise together.

How to Calculate Zero Sequence Current for L-G-F?

Zero Sequence Current for L-G-F calculator uses Zero Sequence Current LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Impedance LG to calculate the Zero Sequence Current LG, The Zero Sequence Current for L-G-F formula is consists of balanced three-phase current phasors of which all have the same phase angles and rotate counterclockwise together. Zero Sequence Current LG is denoted by I_0(lg) symbol.

How to calculate Zero Sequence Current for L-G-F using this online calculator? To use this online calculator for Zero Sequence Current for L-G-F, enter Zero Sequence Voltage LG (V_0(lg)) & Zero Sequence Impedance LG (Z_0(lg)) and hit the calculate button. Here is how the Zero Sequence Current for L-G-F calculation can be explained with given input values -> -2.2 = (-1)*17.6/8.

FAQ

What is Zero Sequence Current for L-G-F?

The Zero Sequence Current for L-G-F formula is consists of balanced three-phase current phasors of which all have the same phase angles and rotate counterclockwise together and is represented as I_0(lg) = (-1)*V_0(lg)/Z_0(lg) or Zero Sequence Current LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Impedance LG. Zero Sequence Voltage LG consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counterclockwise together & Zero Sequence Impedance LG consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counter clockwise together.

How to calculate Zero Sequence Current for L-G-F?

The Zero Sequence Current for L-G-F formula is consists of balanced three-phase current phasors of which all have the same phase angles and rotate counterclockwise together is calculated using Zero Sequence Current LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Impedance LG. To calculate Zero Sequence Current for L-G-F, you need Zero Sequence Voltage LG (V_0(lg)) & Zero Sequence Impedance LG (Z_0(lg)). With our tool, you need to enter the respective value for Zero Sequence Voltage LG & Zero Sequence Impedance LG and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Zero Sequence Current LG?

In this formula, Zero Sequence Current LG uses Zero Sequence Voltage LG & Zero Sequence Impedance LG. We can use 2 other way(s) to calculate the same, which is/are as follows -

Zero Sequence Current LG = A-Phase Current LG/3
Zero Sequence Current LG = EMF Induced in Primary Winding LG/(Zero Sequence Impedance LG+Negative Sequence Impedance LG+Positive Sequence Impedance LG+(3*Fault Impedance LG))

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