Zero Sequence Voltage for LGF Calculator

✖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 LG [I_0(lg)]			+10% -10%

✖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 for LGF [V_0(lg)]

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Formula

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Zero Sequence Voltage for LGF

Formula

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

Example

`"-17.6V"=-"8Ω"*"2.20A"`

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Zero Sequence Voltage for LGF Solution

STEP 0: Pre-Calculation Summary

Formula Used

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

Variables Used

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.
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 Impedance LG: 8 Ohm --> 8 Ohm 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

V_0(lg) = -Z_0(lg)*I_0(lg) --> -8*2.2

Evaluating ... ...

V_0(lg) = -17.6

STEP 3: Convert Result to Output's Unit

-17.6 Volt --> No Conversion Required

FINAL ANSWER

-17.6 Volt <-- Zero Sequence Voltage LG

(Calculation completed in 00.004 seconds)

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Home » Engineering » Electrical » Power System » Fault » Shunt Faults » Unsymmetrical Faults » L-G Fault » Voltage & EMF » Zero Sequence Voltage for LGF

Credits

Created by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

Urvi Rathod has created this Calculator and 1500+ more calculators!

Verified by Payal Priya

Birsa Institute of Technology (BIT), Sindri

Payal Priya has verified this Calculator and 1900+ more calculators!

< 16 Voltage & EMF Calculators

Positive Sequence Voltage using A-Phase EMF and Sequence Impedances(LGF)

Go Positive Sequence Voltage LG = (A Phase EMF LG*(Zero Sequence Impedance LG+Negative Sequence Impedance LG))/(Zero Sequence Impedance LG+Positive Sequence Impedance LG+Negative Sequence Impedance LG)

Negative Sequence Voltage using A-Phase EMF and Sequence Impedances(LGF)

Go Negative Sequence Voltage LG = (-A Phase EMF LG*Negative Sequence Impedance LG)/(Zero Sequence Impedance LG+Positive Sequence Impedance LG+Negative Sequence Impedance LG)

A-Phase EMF using Negative Sequence Current (LGF)

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

A-Phase EMF using Positive Sequence Current(LGF)

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

A-Phase EMF using Zero Sequence Current (LGF)

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

Zero Sequence Voltage using Positive Sequence Current

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

Zero Sequence Voltage using A-Phase Current (LGF)

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

Negative Sequence Voltage using A-Phase Current (LGF)

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

Zero Sequence Voltage using Phase Voltages(LGF)

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

Positive Sequence Voltage for L-G-F

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

A-Phase EMF using Positive Sequence Voltage (LGF)

Go A Phase EMF LG = Positive Sequence Voltage LG+(Positive Sequence Impedance LG*Positive Sequence Current LG)

A-Phase Voltage using Sequence Voltages(LGF)

Go A Phase Voltage LG = Zero Sequence Voltage LG+Positive Sequence Voltage LG+Negative Sequence Voltage LG

Negative Sequence Voltage for LGF

Go Negative Sequence Voltage LG = -Negative Sequence Impedance LG*Negative Sequence Current LG

Positive Sequence Voltage using Positive Sequence Current

Go Positive Sequence Voltage LG = 3*Fault Impedance LG*Positive Sequence Current LG

Zero Sequence Voltage for LGF

Go Zero Sequence Voltage LG = -Zero Sequence Impedance LG*Zero Sequence Current LG

A-Phase Voltage(LGF)

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

Zero Sequence Voltage for LGF Formula

Zero Sequence Voltage LG = -Zero Sequence Impedance LG*Zero Sequence Current LG
V_0(lg) = -Z_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 Voltage for LGF?

Zero Sequence Voltage for LGF calculator uses Zero Sequence Voltage LG = -Zero Sequence Impedance LG*Zero Sequence Current LG to calculate the Zero Sequence Voltage LG, The Zero Sequence Voltage for LGF formula is 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 is denoted by V_0(lg) symbol.

How to calculate Zero Sequence Voltage for LGF using this online calculator? To use this online calculator for Zero Sequence Voltage for LGF, enter Zero Sequence Impedance LG (Z_0(lg)) & Zero Sequence Current LG (I_0(lg)) and hit the calculate button. Here is how the Zero Sequence Voltage for LGF calculation can be explained with given input values -> -17.6 = -8*2.2.

FAQ

What is Zero Sequence Voltage for LGF?

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

The Zero Sequence Voltage for LGF formula is consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counterclockwise together is calculated using Zero Sequence Voltage LG = -Zero Sequence Impedance LG*Zero Sequence Current LG. To calculate Zero Sequence Voltage for LGF, you need Zero Sequence Impedance LG (Z_0(lg)) & Zero Sequence Current LG (I_0(lg)). With our tool, you need to enter the respective value for Zero Sequence Impedance 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 Voltage LG?

In this formula, Zero Sequence Voltage LG uses Zero Sequence Impedance LG & Zero Sequence Current LG. We can use 3 other way(s) to calculate the same, which is/are as follows -

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

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