Zero Sequence Voltage using Phase Voltages(LGF) Calculator

✖Fault Impedance LG 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.ⓘ Fault Impedance LG [Z_f(lg)]			+10% -10%
✖A-phase Current LG is the current that flows into the a-phase in open conductor fault.ⓘ A-Phase Current LG [I_a(lg)]			+10% -10%
✖B phase Voltage LG is defined as the voltage of b-phase.ⓘ B Phase Voltage LG [V_b(lg)]			+10% -10%
✖C phase Voltage LG is defined as the voltage of c-phase.ⓘ C Phase Voltage LG [V_c(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 using Phase Voltages(LGF) [V_0(lg)]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Fault Formula PDF PDF Image

Zero Sequence Voltage using Phase Voltages(LGF) Solution

STEP 0: Pre-Calculation Summary

Formula Used

Zero Sequence Voltage LG = 1/3*(Fault Impedance LG*A-Phase Current LG+B Phase Voltage LG+C Phase Voltage LG)
V_0(lg) = 1/3*(Z_f(lg)*I_a(lg)+V_b(lg)+V_c(lg))
This formula uses 5 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.
Fault Impedance LG - (Measured in Ohm) - Fault Impedance LG 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.
A-Phase Current LG - (Measured in Ampere) - A-phase Current LG is the current that flows into the a-phase in open conductor fault.
B Phase Voltage LG - (Measured in Volt) - B phase Voltage LG is defined as the voltage of b-phase.
C Phase Voltage LG - (Measured in Volt) - C phase Voltage LG is defined as the voltage of c-phase.

STEP 1: Convert Input(s) to Base Unit

Fault Impedance LG: 1.5 Ohm --> 1.5 Ohm No Conversion Required
A-Phase Current LG: 2.13 Ampere --> 2.13 Ampere No Conversion Required
B Phase Voltage LG: 16.5 Volt --> 16.5 Volt No Conversion Required
C Phase Voltage LG: 17.2 Volt --> 17.2 Volt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_0(lg) = 1/3*(Z_f(lg)*I_a(lg)+V_b(lg)+V_c(lg)) --> 1/3*(1.5*2.13+16.5+17.2)

Evaluating ... ...

V_0(lg) = 12.2983333333333

STEP 3: Convert Result to Output's Unit

12.2983333333333 Volt --> No Conversion Required

FINAL ANSWER

12.2983333333333 ≈ 12.29833 Volt <-- Zero Sequence Voltage LG

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electrical » Power System » Fault » Shunt Faults » Unsymmetrical Faults » L G Fault » Voltage and EMF » Zero Sequence Voltage using Phase Voltages(LGF)

Credits

Created by Nisarg

Indian Institute of Technology,Roorlee (IITR), Roorkee

Nisarg has created this Calculator and 100+ more calculators!

Verified by Parminder Singh

Chandigarh University (CU), Punjab

Parminder Singh has verified this Calculator and 500+ more calculators!

< Voltage and EMF Calculators

Zero Sequence Voltage using A-Phase Current (LGF)

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

Positive Sequence Voltage for L-G-F

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

Zero Sequence Voltage for LGF

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

A-Phase Voltage(LGF)

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

Zero Sequence Voltage using Phase Voltages(LGF) Formula

LaTeX Go

Zero Sequence Voltage LG = 1/3*(Fault Impedance LG*A-Phase Current LG+B Phase Voltage LG+C Phase Voltage LG)
V_0(lg) = 1/3*(Z_f(lg)*I_a(lg)+V_b(lg)+V_c(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 using Phase Voltages(LGF)?

Zero Sequence Voltage using Phase Voltages(LGF) calculator uses Zero Sequence Voltage LG = 1/3*(Fault Impedance LG*A-Phase Current LG+B Phase Voltage LG+C Phase Voltage LG) to calculate the Zero Sequence Voltage LG, The Zero Sequence Voltage using Phase Voltages(LGF) formula consists of balanced three-phase voltage phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ABC rotation. Zero Sequence Voltage LG is denoted by V_0(lg) symbol.

How to calculate Zero Sequence Voltage using Phase Voltages(LGF) using this online calculator? To use this online calculator for Zero Sequence Voltage using Phase Voltages(LGF), enter Fault Impedance LG (Z_f(lg)), A-Phase Current LG (I_a(lg)), B Phase Voltage LG (V_b(lg)) & C Phase Voltage LG (V_c(lg)) and hit the calculate button. Here is how the Zero Sequence Voltage using Phase Voltages(LGF) calculation can be explained with given input values -> 12.29833 = 1/3*(1.5*2.13+16.5+17.2).

FAQ

What is Zero Sequence Voltage using Phase Voltages(LGF)?

The Zero Sequence Voltage using Phase Voltages(LGF) formula consists of balanced three-phase voltage phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ABC rotation and is represented as V_0(lg) = 1/3*(Z_f(lg)*I_a(lg)+V_b(lg)+V_c(lg)) or Zero Sequence Voltage LG = 1/3*(Fault Impedance LG*A-Phase Current LG+B Phase Voltage LG+C Phase Voltage LG). Fault Impedance LG 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, A-phase Current LG is the current that flows into the a-phase in open conductor fault, B phase Voltage LG is defined as the voltage of b-phase & C phase Voltage LG is defined as the voltage of c-phase.

How to calculate Zero Sequence Voltage using Phase Voltages(LGF)?

The Zero Sequence Voltage using Phase Voltages(LGF) formula consists of balanced three-phase voltage phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ABC rotation is calculated using Zero Sequence Voltage LG = 1/3*(Fault Impedance LG*A-Phase Current LG+B Phase Voltage LG+C Phase Voltage LG). To calculate Zero Sequence Voltage using Phase Voltages(LGF), you need Fault Impedance LG (Z_f(lg)), A-Phase Current LG (I_a(lg)), B Phase Voltage LG (V_b(lg)) & C Phase Voltage LG (V_c(lg)). With our tool, you need to enter the respective value for Fault Impedance LG, A-Phase Current LG, B Phase Voltage LG & C Phase Voltage 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 Fault Impedance LG, A-Phase Current LG, B Phase Voltage LG & C Phase Voltage 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 = -Zero Sequence Impedance LG*Zero Sequence Current LG
Zero Sequence Voltage LG = (3*Fault Impedance LG*Positive Sequence Current LG)-Negative Sequence Voltage LG-Positive Sequence Voltage LG

Home

FREE PDFs

🔍 Search