Sequence Impedance Calculator

✖Symmetric Component Voltage Line is defined as the symmetric component of voltage.ⓘ Symmetric Component Voltage Line [V_s(line)]			+10% -10%
✖Symmetric Component Current Line is defined as the symmetric component of current.ⓘ Symmetric Component Current Line [I_s(line)]			+10% -10%

✖Sequence Impedance Line is defined as the symmetric component of impedance.ⓘ Sequence Impedance [Z_s(line)]

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Formula

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Sequence Impedance

Formula

`"Z"_{"s(line)"} = "V"_{"s(line)"}/"I"_{"s(line)"}`

Example

`"1.75Ω"="7V"/"4A"`

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Sequence Impedance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Sequence Impedance Line = Symmetric Component Voltage Line/Symmetric Component Current Line
Z_s(line) = V_s(line)/I_s(line)
This formula uses 3 Variables

Variables Used

Sequence Impedance Line - (Measured in Ohm) - Sequence Impedance Line is defined as the symmetric component of impedance.
Symmetric Component Voltage Line - (Measured in Volt) - Symmetric Component Voltage Line is defined as the symmetric component of voltage.
Symmetric Component Current Line - (Measured in Ampere) - Symmetric Component Current Line is defined as the symmetric component of current.

STEP 1: Convert Input(s) to Base Unit

Symmetric Component Voltage Line: 7 Volt --> 7 Volt No Conversion Required
Symmetric Component Current Line: 4 Ampere --> 4 Ampere No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Z_s(line) = V_s(line)/I_s(line) --> 7/4

Evaluating ... ...

Z_s(line) = 1.75

STEP 3: Convert Result to Output's Unit

1.75 Ohm --> No Conversion Required

FINAL ANSWER

1.75 Ohm <-- Sequence Impedance Line

(Calculation completed in 00.020 seconds)

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Credits

Created by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

Urvi Rathod has created this Calculator and 1500+ more calculators!

Verified by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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< 7 Line Sequence Impedance Calculators

Fault Impedance using Positive Sequence Current

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

Fault Impedance using A-Phase Current

Go Fault Impedance Line = (Positive Sequence Voltage Line+Negative Sequence Voltage Line+Zero Sequence Voltage Line)/A-Phase Current Line

Positive Sequence Impedance for Delta Connected Load

Go Positive Sequence Impedance Line = Positive Sequence Voltage Line/Positive Sequence Current Line

Negative Sequence Impedance for Delta Connected Load

Go Negative Sequence Impedance Line = Negative Sequence Voltage Line/Negative Sequence Current Line

Sequence Impedance

Go Sequence Impedance Line = Symmetric Component Voltage Line/Symmetric Component Current Line

Zero Sequence Impedance for Delta Connected Load

Go Zero Sequence Impedance Delta Line = Zero Sequence Voltage Line/Zero Sequence Current Line

Zero Sequence Impedance for Star Connected Load

Go Zero Sequence Impedance Star Line = Sequence Impedance Line+(3*Fault Impedance Line)

Sequence Impedance Formula

Sequence Impedance Line = Symmetric Component Voltage Line/Symmetric Component Current Line
Z_s(line) = V_s(line)/I_s(line)

What is symmetrical components in power system?

The method of symmetrical components is used to simplify fault analysis by converting a three-phase unbalanced system into two sets of balanced phasors and a set of single-phase phasors, or symmetrical components. These sets of phasors are called the positive-, negative-, and zero-sequence components.

How to Calculate Sequence Impedance?

Sequence Impedance calculator uses Sequence Impedance Line = Symmetric Component Voltage Line/Symmetric Component Current Line to calculate the Sequence Impedance Line, The sequence impedance formula is defined as subsystems of balanced phasors of phase impedance that can be found using symmetric voltage and symmetric current. Sequence Impedance Line is denoted by Z_s(line) symbol.

How to calculate Sequence Impedance using this online calculator? To use this online calculator for Sequence Impedance, enter Symmetric Component Voltage Line (V_s(line)) & Symmetric Component Current Line (I_s(line)) and hit the calculate button. Here is how the Sequence Impedance calculation can be explained with given input values -> 1.75 = 7/4.

FAQ

What is Sequence Impedance?

The sequence impedance formula is defined as subsystems of balanced phasors of phase impedance that can be found using symmetric voltage and symmetric current and is represented as Z_s(line) = V_s(line)/I_s(line) or Sequence Impedance Line = Symmetric Component Voltage Line/Symmetric Component Current Line. Symmetric Component Voltage Line is defined as the symmetric component of voltage & Symmetric Component Current Line is defined as the symmetric component of current.

How to calculate Sequence Impedance?

The sequence impedance formula is defined as subsystems of balanced phasors of phase impedance that can be found using symmetric voltage and symmetric current is calculated using Sequence Impedance Line = Symmetric Component Voltage Line/Symmetric Component Current Line. To calculate Sequence Impedance, you need Symmetric Component Voltage Line (V_s(line)) & Symmetric Component Current Line (I_s(line)). With our tool, you need to enter the respective value for Symmetric Component Voltage Line & Symmetric Component Current Line and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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