Positive Sequence Current using Positive Sequence Voltage (LLGF) Calculator

✖A phase EMF is defined as the electromagnetic force of the a-phase in open conductor fault.ⓘ A Phase EMF [E_a]			+10% -10%
✖Positive Sequence Voltage consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.ⓘ Positive Sequence Voltage [V₁]			+10% -10%
✖Positive Sequence Impedance consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.ⓘ Positive Sequence Impedance [Z₁]			+10% -10%

✖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 using Positive Sequence Voltage (LLGF) [I₁]

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Formula

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Positive Sequence Current using Positive Sequence Voltage (LLGF)

Formula

`"I"_{"1"} = ("E"_{"a"}-"V"_{"1"})/"Z"_{"1"}`

Example

`"1.496222A"=("29.38V"-"17.5V")/"7.94Ω"`

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Positive Sequence Current using Positive Sequence Voltage (LLGF) Solution

STEP 0: Pre-Calculation Summary

Formula Used

Positive Sequence Current = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Impedance
I₁ = (E_a-V₁)/Z₁
This formula uses 4 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.
A Phase EMF - (Measured in Volt) - A phase EMF is defined as the electromagnetic force of the a-phase in open conductor fault.
Positive Sequence Voltage - (Measured in Volt) - Positive Sequence Voltage consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.
Positive Sequence Impedance - (Measured in Ohm) - Positive Sequence Impedance consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.

STEP 1: Convert Input(s) to Base Unit

A Phase EMF: 29.38 Volt --> 29.38 Volt No Conversion Required
Positive Sequence Voltage: 17.5 Volt --> 17.5 Volt No Conversion Required
Positive Sequence Impedance: 7.94 Ohm --> 7.94 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I₁ = (E_a-V₁)/Z₁ --> (29.38-17.5)/7.94

Evaluating ... ...

I₁ = 1.49622166246851

STEP 3: Convert Result to Output's Unit

1.49622166246851 Ampere --> No Conversion Required

FINAL ANSWER

1.49622166246851 ≈ 1.496222 Ampere <-- Positive Sequence Current

(Calculation completed in 00.004 seconds)

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Home » Engineering » Electrical » Power System » Fault » Shunt Faults » Unsymmetrical Faults » L-L-G Fault » Current » Positive Sequence Current using Positive Sequence Voltage (LLGF)

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< 16 Current Calculators

Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF)

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

Negative Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)

Go Negative Sequence Current = -Positive Sequence Current*((Zero Sequence Impedance+3*Fault Impedance)/(Zero Sequence Impedance+Negative Sequence Impedance+3*Fault Impedance))

Zero Sequence Current using Positive Sequence Current and Sequence Impedances(LLGF)

Go Zero Sequence Current = -Positive Sequence Current*((Negative Sequence Impedance)/(Zero Sequence Impedance+Negative Sequence Impedance+3*Fault Impedance))

Positive Sequence Current using Positive Sequence Voltage (LLGF)

Go Positive Sequence Current = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Impedance

Zero Sequence Current using Sequence Voltages and Fault Impedance(LLGF)

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

B-Phase Current using B-Phase Voltage(LLGF)

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

C-Phase Current using C-Phase Voltage(LLGF)

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

Negative Sequence Current using Negative Sequence Voltage (LLGF)

Go Negative Sequence Current = (-1)*Negative Sequence Voltage/Negative Sequence Impedance

Zero Sequence Current using Zero Sequence Voltage (LLGF)

Go Zero Sequence Current = (-1)*Zero Sequence Voltage/Zero Sequence Impedance

Zero Sequence Current using B-Phase Voltage (LLGF)

Go Zero Sequence Current = B Phase Voltage/(3*Fault Impedance)

Zero Sequence Current using C-Phase Voltage (LLGF)

Go Zero Sequence Current = C Phase Voltage/(3*Fault Impedance)

Fault Current using B-Phase Voltage (LLGF)

Go Fault Current = B Phase Voltage/Fault Impedance

Fault Current using C-Phase Voltage (LLGF)

Go Fault Current = C Phase Voltage/Fault Impedance

B-Phase Current (LLGF)

Go B Phase Current = Fault Current-C Phase Current

C-Phase Current (LLGF)

Go C Phase Current = Fault Current-B Phase Current

Fault Current (LLGF)

Go Fault Current = B Phase Current+C Phase Current

Positive Sequence Current using Positive Sequence Voltage (LLGF) Formula

Positive Sequence Current = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Impedance
I₁ = (E_a-V₁)/Z₁

What are the negative and zero sequence components?

Negative Sequence Components consists of balanced three-phase voltage and current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ACB rotation. zero sequence components consist of a balanced three-phase voltage, phasors of which all have the same phase angles and rotate counterclockwise together.

How to Calculate Positive Sequence Current using Positive Sequence Voltage (LLGF)?

Positive Sequence Current using Positive Sequence Voltage (LLGF) calculator uses Positive Sequence Current = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Impedance to calculate the Positive Sequence Current, The Positive Sequence current using positive sequence voltage (LLGF) formula is defined as consists of balanced three-phase 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 using Positive Sequence Voltage (LLGF) using this online calculator? To use this online calculator for Positive Sequence Current using Positive Sequence Voltage (LLGF), enter A Phase EMF (E_a), Positive Sequence Voltage (V₁) & Positive Sequence Impedance (Z₁) and hit the calculate button. Here is how the Positive Sequence Current using Positive Sequence Voltage (LLGF) calculation can be explained with given input values -> 1.496222 = (29.38-17.5)/7.94.

FAQ

What is Positive Sequence Current using Positive Sequence Voltage (LLGF)?

The Positive Sequence current using positive sequence voltage (LLGF) formula is defined as consists of balanced three-phase current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ABC rotation and is represented as I₁ = (E_a-V₁)/Z₁ or Positive Sequence Current = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Impedance. A phase EMF is defined as the electromagnetic force of the a-phase in open conductor fault, Positive Sequence Voltage consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation & Positive Sequence Impedance consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.

How to calculate Positive Sequence Current using Positive Sequence Voltage (LLGF)?

The Positive Sequence current using positive sequence voltage (LLGF) formula is defined as consists of balanced three-phase current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ABC rotation is calculated using Positive Sequence Current = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Impedance. To calculate Positive Sequence Current using Positive Sequence Voltage (LLGF), you need A Phase EMF (E_a), Positive Sequence Voltage (V₁) & Positive Sequence Impedance (Z₁). With our tool, you need to enter the respective value for A Phase EMF, Positive Sequence Voltage & Positive Sequence Impedance 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 A Phase EMF, Positive Sequence Voltage & Positive Sequence Impedance. We can use 1 other way(s) to calculate the same, which is/are as follows -

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

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