Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF) 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 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 [I₁]			+10% -10%
✖Fault Impedance 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 [Z_f]			+10% -10%
✖Negative Sequence Impedance consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.ⓘ Negative Sequence Impedance [Z₂]			+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 using A-Phase EMF and Positive Sequence Current(LLF) [Z₁]

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Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF)

Formula

`"Z"_{"1"} = "E"_{"a"}/"I"_{"1"}-("Z"_{"f"}+"Z"_{"2"})`

Example

`"57.78266Ω"="29.38V"/"2.001A"-("1.5Ω"+"-44.6Ω")`

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Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF) Solution

STEP 0: Pre-Calculation Summary

Formula Used

Positive Sequence Impedance = A Phase EMF/Positive Sequence Current-(Fault Impedance+Negative Sequence Impedance)
Z₁ = E_a/I₁-(Z_f+Z₂)
This formula uses 5 Variables

Variables Used

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.
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 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.
Fault Impedance - (Measured in Ohm) - Fault Impedance 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.
Negative Sequence Impedance - (Measured in Ohm) - Negative Sequence Impedance consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

STEP 1: Convert Input(s) to Base Unit

A Phase EMF: 29.38 Volt --> 29.38 Volt No Conversion Required
Positive Sequence Current: 2.001 Ampere --> 2.001 Ampere No Conversion Required
Fault Impedance: 1.5 Ohm --> 1.5 Ohm No Conversion Required
Negative Sequence Impedance: -44.6 Ohm --> -44.6 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Z₁ = E_a/I₁-(Z_f+Z₂) --> 29.38/2.001-(1.5+(-44.6))

Evaluating ... ...

Z₁ = 57.7826586706647

STEP 3: Convert Result to Output's Unit

57.7826586706647 Ohm --> No Conversion Required

FINAL ANSWER

57.7826586706647 ≈ 57.78266 Ohm <-- Positive Sequence Impedance

(Calculation completed in 00.004 seconds)

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< 4 Impedance Calculators

Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF)

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

Fault Impedance using A-Phase EMF(LLF)

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

Fault Impedance using Positive Sequence Current (LLF)

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

Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF)

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

Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF) Formula

Positive Sequence Impedance = A Phase EMF/Positive Sequence Current-(Fault Impedance+Negative Sequence Impedance)
Z₁ = E_a/I₁-(Z_f+Z₂)

What is a line to line fault?

A line-to-line fault, also known as a three-phase fault, is a type of electrical fault that occurs in a three-phase power system. This type of fault occurs when a failure occurs between two phases of the power system, causing a current to flow from one phase to the other.

How to Calculate Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF)?

Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF) calculator uses Positive Sequence Impedance = A Phase EMF/Positive Sequence Current-(Fault Impedance+Negative Sequence Impedance) to calculate the Positive Sequence Impedance, The Positive Sequence Impedance using A-phase EMF and Positive Sequence Current(LLF) formula is defined as a measure of the impedance of a three-phase electrical power system with respect to the positive sequence components of the system. Positive Sequence Impedance is denoted by Z₁ symbol.

How to calculate Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF) using this online calculator? To use this online calculator for Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF), enter A Phase EMF (E_a), Positive Sequence Current (I₁), Fault Impedance (Z_f) & Negative Sequence Impedance (Z₂) and hit the calculate button. Here is how the Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF) calculation can be explained with given input values -> -31.417341 = 29.38/2.001-(1.5+(-44.6)).

FAQ

What is Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF)?

The Positive Sequence Impedance using A-phase EMF and Positive Sequence Current(LLF) formula is defined as a measure of the impedance of a three-phase electrical power system with respect to the positive sequence components of the system and is represented as Z₁ = E_a/I₁-(Z_f+Z₂) or Positive Sequence Impedance = A Phase EMF/Positive Sequence Current-(Fault Impedance+Negative Sequence Impedance). A phase EMF is defined as the electromagnetic force of the a-phase in open conductor fault, Positive Sequence Current consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation, Fault Impedance 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 & Negative Sequence Impedance consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

How to calculate Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF)?

The Positive Sequence Impedance using A-phase EMF and Positive Sequence Current(LLF) formula is defined as a measure of the impedance of a three-phase electrical power system with respect to the positive sequence components of the system is calculated using Positive Sequence Impedance = A Phase EMF/Positive Sequence Current-(Fault Impedance+Negative Sequence Impedance). To calculate Positive Sequence Impedance using A-Phase EMF and Positive Sequence Current(LLF), you need A Phase EMF (E_a), Positive Sequence Current (I₁), Fault Impedance (Z_f) & Negative Sequence Impedance (Z₂). With our tool, you need to enter the respective value for A Phase EMF, Positive Sequence Current, Fault Impedance & Negative 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 Impedance?

In this formula, Positive Sequence Impedance uses A Phase EMF, Positive Sequence Current, Fault Impedance & Negative Sequence Impedance. We can use 1 other way(s) to calculate the same, which is/are as follows -

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

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