Zero Sequence Current using A-Phase Current (LGF) Solution

STEP 0: Pre-Calculation Summary
Formula Used
Zero Sequence Current LG = A-Phase Current LG/3
I0(lg) = Ia(lg)/3
This formula uses 2 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.
A-Phase Current LG - (Measured in Ampere) - A-phase Current LG is the current that flows into the a-phase in open conductor fault.
STEP 1: Convert Input(s) to Base Unit
A-Phase Current LG: 2.13 Ampere --> 2.13 Ampere No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
I0(lg) = Ia(lg)/3 --> 2.13/3
Evaluating ... ...
I0(lg) = 0.71
STEP 3: Convert Result to Output's Unit
0.71 Ampere --> No Conversion Required
FINAL ANSWER
0.71 Ampere <-- Zero Sequence Current LG
(Calculation completed in 00.004 seconds)

Credits

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Created by Urvi Rathod
Vishwakarma Government Engineering College (VGEC), Ahmedabad
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Birsa Institute of Technology (BIT), Sindri
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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 using A-Phase Current (LGF) Formula

​LaTeX ​Go
Zero Sequence Current LG = A-Phase Current LG/3
I0(lg) = Ia(lg)/3

What is difference between line current and phase current?

Line current is the current through any one line between a three-phase source and load. Phase current is the current through any one component comprising a three-phase source or load.

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 using A-Phase Current (LGF)?

Zero Sequence Current using A-Phase Current (LGF) calculator uses Zero Sequence Current LG = A-Phase Current LG/3 to calculate the Zero Sequence Current LG, The Zero Sequence current using a-phase Current (LGF) formula consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together. Zero Sequence Current LG is denoted by I0(lg) symbol.

How to calculate Zero Sequence Current using A-Phase Current (LGF) using this online calculator? To use this online calculator for Zero Sequence Current using A-Phase Current (LGF), enter A-Phase Current LG (Ia(lg)) and hit the calculate button. Here is how the Zero Sequence Current using A-Phase Current (LGF) calculation can be explained with given input values -> 0.71 = 2.13/3.

FAQ

What is Zero Sequence Current using A-Phase Current (LGF)?
The Zero Sequence current using a-phase Current (LGF) formula consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together and is represented as I0(lg) = Ia(lg)/3 or Zero Sequence Current LG = A-Phase Current LG/3. A-phase Current LG is the current that flows into the a-phase in open conductor fault.
How to calculate Zero Sequence Current using A-Phase Current (LGF)?
The Zero Sequence current using a-phase Current (LGF) formula consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together is calculated using Zero Sequence Current LG = A-Phase Current LG/3. To calculate Zero Sequence Current using A-Phase Current (LGF), you need A-Phase Current LG (Ia(lg)). With our tool, you need to enter the respective value for A-Phase 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 Current LG?
In this formula, Zero Sequence Current LG uses A-Phase Current LG. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Zero Sequence Current LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Impedance LG
  • 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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