Positive Sequence Current (LLF) Calculator

✖Negative Sequence Current consists of balanced three-phase current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.ⓘ Negative Sequence Current [I₂]

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✖Positive Sequence Current consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.ⓘ Positive Sequence Current (LLF) [I₁]

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Formula

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Positive Sequence Current (LLF)

Formula

`"I"_{"1"} = (-1)*"I"_{"2"}`

Example

`"0.36A"=(-1)*"-0.36A"`

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Positive Sequence Current (LLF) Solution

STEP 0: Pre-Calculation Summary

Formula Used

Positive Sequence Current = (-1)*Negative Sequence Current
I₁ = (-1)*I₂
This formula uses 2 Variables

Variables Used

Positive Sequence Current - (Measured in Ampere) - Positive Sequence Current consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.
Negative Sequence Current - (Measured in Ampere) - Negative Sequence Current consists of balanced three-phase current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

STEP 1: Convert Input(s) to Base Unit

Negative Sequence Current: -0.36 Ampere --> -0.36 Ampere No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I₁ = (-1)*I₂ --> (-1)*(-0.36)

Evaluating ... ...

I₁ = 0.36

STEP 3: Convert Result to Output's Unit

0.36 Ampere --> No Conversion Required

FINAL ANSWER

0.36 Ampere <-- Positive Sequence Current

(Calculation completed in 00.004 seconds)

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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

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< 10+ Current Calculators

Positive Sequence Current using A-Phase EMF(LLF)

Go Positive Sequence Current = A Phase EMF/(Positive Sequence Impedance+Negative Sequence Impedance+Fault Impedance)

B-Phase Current using A-Phase EMF(LLF)

Go B Phase Current = (sqrt(3)*A Phase EMF)/(Positive Sequence Impedance+Negative Sequence Impedance)

Fault Current(LLF)

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

Positive Sequence Current using Fault Impedance(LLF)

Go Positive Sequence Current = (Positive Sequence Voltage-Negative Sequence Voltage)/Fault Impedance

B-Phase Current using Fault Impedance (LLF)

Go B Phase Current = (B Phase Voltage-C Phase Voltage)/Fault Impedance

C-Phase Current using Fault Impedance (LLF)

Go C Phase Current = (C Phase Voltage-B Phase Voltage)/Fault Impedance

Positive Sequence Current (LLF)

Go Positive Sequence Current = (-1)*Negative Sequence Current

Negative Sequence Current(LLF)

Go Negative Sequence Current = (-1)*Positive Sequence Current

B-Phase Current (LLF)

Go B Phase Current = (-1)*C Phase Current

C-Phase Current(LLF)

Go C Phase Current = (-1)*B Phase Current

Positive Sequence Current (LLF) Formula

Positive Sequence Current = (-1)*Negative Sequence Current
I₁ = (-1)*I₂

What are sequence currents?

The unbalanced current flows in the circuit during the earth fault is known as the zero-sequence current or the DC component of the fault current. The zero phase sequence means the magnitude of three phases has zero phase displacement.

How to Calculate Positive Sequence Current (LLF)?

Positive Sequence Current (LLF) calculator uses Positive Sequence Current = (-1)*Negative Sequence Current to calculate the Positive Sequence Current, The Positive Sequence Current (LLF) formula is defined as consists of balanced three-phase voltage and current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ABC rotation. Positive Sequence Current is denoted by I₁ symbol.

How to calculate Positive Sequence Current (LLF) using this online calculator? To use this online calculator for Positive Sequence Current (LLF), enter Negative Sequence Current (I₂) and hit the calculate button. Here is how the Positive Sequence Current (LLF) calculation can be explained with given input values -> 0.36 = (-1)*(-0.36).

FAQ

What is Positive Sequence Current (LLF)?

The Positive Sequence Current (LLF) formula is defined as consists of balanced three-phase voltage and current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ABC rotation and is represented as I₁ = (-1)*I₂ or Positive Sequence Current = (-1)*Negative Sequence Current. Negative Sequence Current consists of balanced three-phase current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

How to calculate Positive Sequence Current (LLF)?

The Positive Sequence Current (LLF) formula is defined as consists of balanced three-phase voltage and current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ABC rotation is calculated using Positive Sequence Current = (-1)*Negative Sequence Current. To calculate Positive Sequence Current (LLF), you need Negative Sequence Current (I₂). With our tool, you need to enter the respective value for Negative Sequence Current 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 Positive Sequence Current?

In this formula, Positive Sequence Current uses Negative Sequence Current. We can use 2 other way(s) to calculate the same, which is/are as follows -

Positive Sequence Current = (Positive Sequence Voltage-Negative Sequence Voltage)/Fault Impedance
Positive Sequence Current = A Phase EMF/(Positive Sequence Impedance+Negative Sequence Impedance+Fault Impedance)

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