Positive Sequence Impedance for L-G-F Solution

STEP 0: Pre-Calculation Summary
Formula Used
Positive Sequence Impedance LG = (EMF Induced in Primary Winding LG-Positive Sequence Voltage LG)/Positive Sequence Current LG
Z1(lg) = (E1(lg)-V1(lg))/I1(lg)
This formula uses 4 Variables
Variables Used
Positive Sequence Impedance LG - (Measured in Ohm) - Positive Sequence Impedance LG consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.
EMF Induced in Primary Winding LG - (Measured in Volt) - EMF Induced in Primary Winding LG is the production of voltage in a coil because of the change in magnetic flux through a coil.
Positive Sequence Voltage LG - (Measured in Volt) - Positive Sequence Voltage LG consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.
Positive Sequence Current LG - (Measured in Ampere) - Positive Sequence Current LG 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
EMF Induced in Primary Winding LG: 20.5 Volt --> 20.5 Volt No Conversion Required
Positive Sequence Voltage LG: 17.5 Volt --> 17.5 Volt No Conversion Required
Positive Sequence Current LG: 2.001 Ampere --> 2.001 Ampere No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Z1(lg) = (E1(lg)-V1(lg))/I1(lg) --> (20.5-17.5)/2.001
Evaluating ... ...
Z1(lg) = 1.49925037481259
STEP 3: Convert Result to Output's Unit
1.49925037481259 Ohm --> No Conversion Required
FINAL ANSWER
1.49925037481259 1.49925 Ohm <-- Positive Sequence Impedance LG
(Calculation completed in 00.020 seconds)

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Impedance Calculators

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

Positive Sequence Impedance for L-G-F Formula

​LaTeX ​Go
Positive Sequence Impedance LG = (EMF Induced in Primary Winding LG-Positive Sequence Voltage LG)/Positive Sequence Current LG
Z1(lg) = (E1(lg)-V1(lg))/I1(lg)

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 Positive Sequence Impedance for L-G-F?

Positive Sequence Impedance for L-G-F calculator uses Positive Sequence Impedance LG = (EMF Induced in Primary Winding LG-Positive Sequence Voltage LG)/Positive Sequence Current LG to calculate the Positive Sequence Impedance LG, The Positive Sequence Impedance for L-G-F formula is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation. Positive Sequence Impedance LG is denoted by Z1(lg) symbol.

How to calculate Positive Sequence Impedance for L-G-F using this online calculator? To use this online calculator for Positive Sequence Impedance for L-G-F, enter EMF Induced in Primary Winding LG (E1(lg)), Positive Sequence Voltage LG (V1(lg)) & Positive Sequence Current LG (I1(lg)) and hit the calculate button. Here is how the Positive Sequence Impedance for L-G-F calculation can be explained with given input values -> 1.49925 = (20.5-17.5)/2.001.

FAQ

What is Positive Sequence Impedance for L-G-F?
The Positive Sequence Impedance for L-G-F formula is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation and is represented as Z1(lg) = (E1(lg)-V1(lg))/I1(lg) or Positive Sequence Impedance LG = (EMF Induced in Primary Winding LG-Positive Sequence Voltage LG)/Positive Sequence Current LG. EMF Induced in Primary Winding LG is the production of voltage in a coil because of the change in magnetic flux through a coil, Positive Sequence Voltage LG consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation & Positive Sequence Current LG 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 for L-G-F?
The Positive Sequence Impedance for L-G-F formula is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation is calculated using Positive Sequence Impedance LG = (EMF Induced in Primary Winding LG-Positive Sequence Voltage LG)/Positive Sequence Current LG. To calculate Positive Sequence Impedance for L-G-F, you need EMF Induced in Primary Winding LG (E1(lg)), Positive Sequence Voltage LG (V1(lg)) & Positive Sequence Current LG (I1(lg)). With our tool, you need to enter the respective value for EMF Induced in Primary Winding LG, Positive Sequence Voltage LG & Positive Sequence 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 Positive Sequence Impedance LG?
In this formula, Positive Sequence Impedance LG uses EMF Induced in Primary Winding LG, Positive Sequence Voltage LG & Positive Sequence Current LG. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Positive Sequence Impedance LG = (EMF Induced in Primary Winding LG/Positive Sequence Current LG)-(3*Fault Impedance LG)-Zero Sequence Impedance LG-Negative Sequence Impedance LG
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