Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(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 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 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%

✖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 Positive Sequence Voltage and A-Phase EMF(LLF) [Z₁]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Fault Formula PDF PDF Image

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

STEP 0: Pre-Calculation Summary

Formula Used

Positive Sequence Impedance = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Current
Z₁ = (E_a-V₁)/I₁
This formula uses 4 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 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 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.

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 Current: 2.001 Ampere --> 2.001 Ampere No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Z₁ = (E_a-V₁)/I₁ --> (29.38-17.5)/2.001

Evaluating ... ...

Z₁ = 5.93703148425787

STEP 3: Convert Result to Output's Unit

5.93703148425787 Ohm --> No Conversion Required

FINAL ANSWER

5.93703148425787 ≈ 5.937031 Ohm <-- Positive Sequence Impedance

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electrical » Power System » Fault » Shunt Faults » Unsymmetrical Faults » L L Fault » Impedance » Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF)

Credits

Created by Nisarg

Indian Institute of Technology,Roorlee (IITR), Roorkee

Nisarg has created this Calculator and 100+ more calculators!

Verified by Parminder Singh

Chandigarh University (CU), Punjab

Parminder Singh has verified this Calculator and 500+ more calculators!

< Impedance Calculators

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

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

Fault Impedance using A-Phase EMF(LLF)

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

Fault Impedance using Positive Sequence Current (LLF)

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

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

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

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

LaTeX Go

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

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 Positive Sequence Voltage and A-Phase EMF(LLF)?

Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF) calculator uses Positive Sequence Impedance = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Current to calculate the Positive Sequence Impedance, The Positive Sequence Impedance using Positive Sequence Voltage and A-phase EMF(LLF) formula is defined as the current that flows in one of the three phases of the power system, while the other two phases remain normal. Positive Sequence Impedance is denoted by Z₁ symbol.

How to calculate Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF) using this online calculator? To use this online calculator for Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF), enter A Phase EMF (E_a), Positive Sequence Voltage (V₁) & Positive Sequence Current (I₁) and hit the calculate button. Here is how the Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF) calculation can be explained with given input values -> 7.936032 = (29.38-17.5)/2.001.

FAQ

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

The Positive Sequence Impedance using Positive Sequence Voltage and A-phase EMF(LLF) formula is defined as the current that flows in one of the three phases of the power system, while the other two phases remain normal and is represented as Z₁ = (E_a-V₁)/I₁ or Positive Sequence Impedance = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Current. 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 Current 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 Impedance using Positive Sequence Voltage and A-Phase EMF(LLF)?

The Positive Sequence Impedance using Positive Sequence Voltage and A-phase EMF(LLF) formula is defined as the current that flows in one of the three phases of the power system, while the other two phases remain normal is calculated using Positive Sequence Impedance = (A Phase EMF-Positive Sequence Voltage)/Positive Sequence Current. To calculate Positive Sequence Impedance using Positive Sequence Voltage and A-Phase EMF(LLF), you need A Phase EMF (E_a), Positive Sequence Voltage (V₁) & Positive Sequence Current (I₁). With our tool, you need to enter the respective value for A Phase EMF, Positive Sequence Voltage & Positive 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 Impedance?

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

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

Home

FREE PDFs

🔍 Search