Zero Sequence Impedance 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 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 LG [I_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 for L-G-F [Z_0(lg)]

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Zero Sequence Impedance for L-G-F

Formula

`"Z"_{"0(lg)"} = (-1)*"V"_{"0(lg)"}/"I"_{"0(lg)"}`

Example

`"-8Ω"=(-1)*"17.6V"/"2.20A"`

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Zero Sequence Impedance for L-G-F Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

Variables Used

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.
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 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.

STEP 1: Convert Input(s) to Base Unit

Zero Sequence Voltage LG: 17.6 Volt --> 17.6 Volt No Conversion Required
Zero Sequence Current LG: 2.2 Ampere --> 2.2 Ampere No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Z_0(lg) = (-1)*V_0(lg)/I_0(lg) --> (-1)*17.6/2.2

Evaluating ... ...

Z_0(lg) = -8

STEP 3: Convert Result to Output's Unit

-8 Ohm --> No Conversion Required

FINAL ANSWER

-8 Ohm <-- Zero Sequence Impedance LG

(Calculation completed in 00.004 seconds)

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Created by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< 10+ Impedance Calculators

Positive Sequence Impedance using A-Phase EMF (LGF)

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

Negative Sequence Impedance using A-Phase EMF (LGF)

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

Zero Sequence Impedance using A-Phase EMF (LGF)

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

Fault Impedance given A-Phase EMF and Sequence Impedances(LGF)

Go Fault Impedance LG = 1/3*((A Phase EMF LG/Positive Sequence Current LG)-(Zero Sequence Impedance LG+Positive Sequence Impedance LG+Negative Sequence Impedance LG))

Fault Impedance using Fault Voltage and A-Phase Current(LGF)

Go Fault Impedance LG = Fault Voltage LG/A-Phase Current LG-(1/3*(Zero Sequence Impedance LG+Positive Sequence Impedance LG+Negative Sequence Impedance LG))

Fault Impedance given Sequence Voltages(LGF)

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

Positive Sequence Impedance for L-G-F

Go Positive Sequence Impedance LG = (EMF Induced in Primary Winding LG-Positive Sequence Voltage LG)/Positive Sequence Current LG

Negative Sequence Impedance for L-G-F

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

Zero Sequence Impedance for L-G-F

Go Zero Sequence Impedance LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Current LG

Fault Impedance using A-Phase Voltage(LGF)

Go Fault Impedance LG = A Phase Voltage LG/A-Phase Current LG

Zero Sequence Impedance for L-G-F Formula

Zero Sequence Impedance LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Current LG
Z_0(lg) = (-1)*V_0(lg)/I_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 Impedance for L-G-F?

Zero Sequence Impedance for L-G-F calculator uses Zero Sequence Impedance LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Current LG to calculate the Zero Sequence Impedance LG, The Zero Sequence Impedance for L-G-F formula is consists of balanced three-phase impedance phasors of which all have the same phase angles and rotate counterclockwise together. Zero Sequence Impedance LG is denoted by Z_0(lg) symbol.

How to calculate Zero Sequence Impedance for L-G-F using this online calculator? To use this online calculator for Zero Sequence Impedance for L-G-F, enter Zero Sequence Voltage LG (V_0(lg)) & Zero Sequence Current LG (I_0(lg)) and hit the calculate button. Here is how the Zero Sequence Impedance for L-G-F calculation can be explained with given input values -> -8 = (-1)*17.6/2.2.

FAQ

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

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

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

The Zero Sequence Impedance for L-G-F formula is consists of balanced three-phase impedance phasors of which all have the same phase angles and rotate counterclockwise together is calculated using Zero Sequence Impedance LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Current LG. To calculate Zero Sequence Impedance for L-G-F, you need Zero Sequence Voltage LG (V_0(lg)) & Zero Sequence Current LG (I_0(lg)). With our tool, you need to enter the respective value for Zero Sequence Voltage LG & Zero Sequence Current 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 Impedance LG?

In this formula, Zero Sequence Impedance LG uses Zero Sequence Voltage LG & Zero Sequence Current LG. We can use 1 other way(s) to calculate the same, which is/are as follows -

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

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