Positive Sequence Impedance using A-Phase EMF (LGF) Solution

STEP 0: Pre-Calculation Summary
Formula Used
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
Z1(lg) = (E1(lg)/I1(lg))-(3*Zf(lg))-Z0(lg)-Z2(lg)
This formula uses 6 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 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.
Fault Impedance LG - (Measured in Ohm) - Fault Impedance LG 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.
Zero Sequence Impedance LG - (Measured in Ohm) - Zero Sequence Impedance LG consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counter clockwise together.
Negative Sequence Impedance LG - (Measured in Ohm) - Negative Sequence Impedance LG 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
EMF Induced in Primary Winding LG: 20.5 Volt --> 20.5 Volt No Conversion Required
Positive Sequence Current LG: 2.001 Ampere --> 2.001 Ampere No Conversion Required
Fault Impedance LG: 1.5 Ohm --> 1.5 Ohm No Conversion Required
Zero Sequence Impedance LG: 8 Ohm --> 8 Ohm No Conversion Required
Negative Sequence Impedance LG: -44.6 Ohm --> -44.6 Ohm No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Z1(lg) = (E1(lg)/I1(lg))-(3*Zf(lg))-Z0(lg)-Z2(lg) --> (20.5/2.001)-(3*1.5)-8-(-44.6)
Evaluating ... ...
Z1(lg) = 42.3448775612194
STEP 3: Convert Result to Output's Unit
42.3448775612194 Ohm --> No Conversion Required
FINAL ANSWER
42.3448775612194 42.34488 Ohm <-- Positive Sequence Impedance LG
(Calculation completed in 00.020 seconds)

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

Positive Sequence Impedance using A-Phase EMF (LGF) Formula

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
Z1(lg) = (E1(lg)/I1(lg))-(3*Zf(lg))-Z0(lg)-Z2(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 using A-Phase EMF (LGF)?

Positive Sequence Impedance using A-Phase EMF (LGF) calculator uses 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 to calculate the Positive Sequence Impedance LG, The Positive Sequence Impedance using a-phase EMF (LGF) 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 using A-Phase EMF (LGF) using this online calculator? To use this online calculator for Positive Sequence Impedance using A-Phase EMF (LGF), enter EMF Induced in Primary Winding LG (E1(lg)), Positive Sequence Current LG (I1(lg)), Fault Impedance LG (Zf(lg)), Zero Sequence Impedance LG (Z0(lg)) & Negative Sequence Impedance LG (Z2(lg)) and hit the calculate button. Here is how the Positive Sequence Impedance using A-Phase EMF (LGF) calculation can be explained with given input values -> 42.34488 = (20.5/2.001)-(3*1.5)-8-(-44.6).

FAQ

What is Positive Sequence Impedance using A-Phase EMF (LGF)?
The Positive Sequence Impedance using a-phase EMF (LGF) 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)/I1(lg))-(3*Zf(lg))-Z0(lg)-Z2(lg) or 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. 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 Current LG consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation, Fault Impedance LG 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, Zero Sequence Impedance LG consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counter clockwise together & Negative Sequence Impedance LG 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 (LGF)?
The Positive Sequence Impedance using a-phase EMF (LGF) 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 Current LG)-(3*Fault Impedance LG)-Zero Sequence Impedance LG-Negative Sequence Impedance LG. To calculate Positive Sequence Impedance using A-Phase EMF (LGF), you need EMF Induced in Primary Winding LG (E1(lg)), Positive Sequence Current LG (I1(lg)), Fault Impedance LG (Zf(lg)), Zero Sequence Impedance LG (Z0(lg)) & Negative Sequence Impedance LG (Z2(lg)). With our tool, you need to enter the respective value for EMF Induced in Primary Winding LG, Positive Sequence Current LG, Fault Impedance LG, Zero Sequence Impedance LG & Negative Sequence Impedance 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 Current LG, Fault Impedance LG, Zero Sequence Impedance LG & Negative Sequence Impedance 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 Voltage LG)/Positive Sequence Current LG
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