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

STEP 0: Pre-Calculation Summary
Formula Used
Negative Sequence Current LG = A-Phase Current LG/3
I2(lg) = Ia(lg)/3
This formula uses 2 Variables
Variables Used
Negative Sequence Current LG - (Measured in Ampere) - Negative Sequence Current LG consists of balanced three-phase current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.
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
I2(lg) = Ia(lg)/3 --> 2.13/3
Evaluating ... ...
I2(lg) = 0.71
STEP 3: Convert Result to Output's Unit
0.71 Ampere --> No Conversion Required
FINAL ANSWER
0.71 Ampere <-- Negative Sequence Current LG
(Calculation completed in 00.004 seconds)

Credits

Created by Urvi Rathod
Vishwakarma Government Engineering College (VGEC), Ahmedabad
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Birsa Institute of Technology (BIT), Sindri
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19 Current Calculators

Zero Sequence Current using A-Phase EMF (LGF)
Go 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))
Positive Sequence Current using A-Phase EMF (LGF)
Go Positive Sequence Current LG = A Phase EMF LG/(Zero Sequence Impedance LG+Negative Sequence Impedance LG+Positive Sequence Impedance LG+(3*Fault Impedance LG))
Negative Sequence Current using A-Phase EMF (LGF)
Go Negative Sequence Current LG = A Phase EMF LG/(Zero Sequence Impedance LG+Negative Sequence Impedance LG+Positive Sequence Impedance LG+(3*Fault Impedance LG))
A-Phase Current using Fault Voltage and Fault Impedance(LGF)
Go A-Phase Current LG = Fault Voltage LG/(Fault Impedance LG+((1/3)*(Zero Sequence Impedance LG+Positive Sequence Impedance LG+Negative Sequence Impedance LG)))
Positive Sequence Current using Fault Impedance(LGF)
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 A-Phase EMF(LGF)
Go A-Phase Current LG = (3*A Phase EMF LG)/(Zero Sequence Impedance LG+Positive Sequence Impedance LG+Negative Sequence Impedance LG)
A-Phase Current using Sequence Voltages and Fault Impedance(LGF)
Go A-Phase Current LG = (Zero Sequence Voltage LG+Positive Sequence Voltage LG+Negative Sequence Voltage LG)/Fault Impedance LG
A-Phase Current using Fault Impedance(LGF)
Go A-Phase Current LG = (3*Zero Sequence Voltage LG-B Phase Voltage LG-C Phase Voltage LG)/Fault Impedance LG
Positive Sequence Current for L-G-F
Go Positive Sequence Current LG = (Positive Sequence Voltage LG-EMF Induced in Primary Winding LG)/Positive Sequence Impedance LG
A-Phase Current using Sequence Current(LGF)
Go A-Phase Current LG = Zero Sequence Current LG+Positive Sequence Current LG+Negative Sequence Current LG
Negative Sequence Current for L-G-F
Go Negative Sequence Current LG = (-1)*Negative Sequence Voltage LG/Negative Sequence Impedance LG
Zero Sequence Current for L-G-F
Go Zero Sequence Current LG = (-1)*Zero Sequence Voltage LG/Zero Sequence Impedance LG
A-Phase Current using A-Phase Voltage(LGF)
Go A-Phase Current LG = A Phase Voltage LG/Fault Impedance LG
A-Phase Current using Positive Sequence Current (LGF)
Go A-Phase Current LG = Positive Sequence Current LG*3
A-Phase Current using Negative Sequence Current (LGF)
Go A-Phase Current LG = 3*Negative Sequence Current LG
Positive Sequence Current using A-Phase Current (LGF)
Go Positive Sequence Current LG = A-Phase Current LG/3
Negative Sequence Current using A-Phase Current (LGF)
Go Negative Sequence Current LG = A-Phase Current LG/3
A-Phase Current using Zero Sequence Current (LGF)
Go A-Phase Current LG = Zero Sequence Current LG*3
Zero Sequence Current using A-Phase Current (LGF)
Go Zero Sequence Current LG = A-Phase Current LG/3

Negative Sequence Current using A-Phase Current (LGF) Formula

Negative Sequence Current LG = A-Phase Current LG/3
I2(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 Negative Sequence Current using A-Phase Current (LGF)?

Negative Sequence Current using A-Phase Current (LGF) calculator uses Negative Sequence Current LG = A-Phase Current LG/3 to calculate the Negative Sequence Current LG, The Negative Sequence current using a-phase Current (LGF) formula consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation. Negative Sequence Current LG is denoted by I2(lg) symbol.

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

FAQ

What is Negative Sequence Current using A-Phase Current (LGF)?
The Negative Sequence current using a-phase Current (LGF) formula consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation and is represented as I2(lg) = Ia(lg)/3 or Negative 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 Negative Sequence Current using A-Phase Current (LGF)?
The Negative Sequence current using a-phase Current (LGF) formula consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation is calculated using Negative Sequence Current LG = A-Phase Current LG/3. To calculate Negative 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 Negative Sequence Current LG?
In this formula, Negative Sequence Current LG uses A-Phase Current LG. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Negative Sequence Current LG = (-1)*Negative Sequence Voltage LG/Negative Sequence Impedance LG
  • Negative Sequence Current LG = A Phase EMF LG/(Zero Sequence Impedance LG+Negative Sequence Impedance LG+Positive Sequence Impedance LG+(3*Fault Impedance LG))
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