Zero Sequence Impedance for Star Connected Load Calculator

✖Sequence Impedance Line is defined as the symmetric component of impedance.ⓘ Sequence Impedance Line [Z_s(line)]			+10% -10%
✖Fault Impedance Line is defined as the impedance that caused the fault.ⓘ Fault Impedance Line [Z_f(line)]			+10% -10%

✖Zero Sequence Impedance Star Line is consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counter clockwise together.ⓘ Zero Sequence Impedance for Star Connected Load [Z_0S(line)]

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Formula

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Zero Sequence Impedance for Star Connected Load

Formula

`"Z"_{"0S(line)"} = "Z"_{"s(line)"}+(3*"Z"_{"f(line)"})`

Example

`"25.271Ω"="1.751Ω"+(3*"7.84Ω")`

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Zero Sequence Impedance for Star Connected Load Solution

STEP 0: Pre-Calculation Summary

Formula Used

Zero Sequence Impedance Star Line = Sequence Impedance Line+(3*Fault Impedance Line)
Z_0S(line) = Z_s(line)+(3*Z_f(line))
This formula uses 3 Variables

Variables Used

Zero Sequence Impedance Star Line - (Measured in Ohm) - Zero Sequence Impedance Star Line is consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counter clockwise together.
Sequence Impedance Line - (Measured in Ohm) - Sequence Impedance Line is defined as the symmetric component of impedance.
Fault Impedance Line - (Measured in Ohm) - Fault Impedance Line is defined as the impedance that caused the fault.

STEP 1: Convert Input(s) to Base Unit

Sequence Impedance Line: 1.751 Ohm --> 1.751 Ohm No Conversion Required
Fault Impedance Line: 7.84 Ohm --> 7.84 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Z_0S(line) = Z_s(line)+(3*Z_f(line)) --> 1.751+(3*7.84)

Evaluating ... ...

Z_0S(line) = 25.271

STEP 3: Convert Result to Output's Unit

25.271 Ohm --> No Conversion Required

FINAL ANSWER

25.271 Ohm <-- Zero Sequence Impedance Star Line

(Calculation completed in 00.021 seconds)

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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)

Zero Sequence Impedance for Star Connected Load Formula

Zero Sequence Impedance Star Line = Sequence Impedance Line+(3*Fault Impedance Line)
Z_0S(line) = Z_s(line)+(3*Z_f(line))

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 Zero Sequence Impedance for Star Connected Load?

Zero Sequence Impedance for Star Connected Load calculator uses Zero Sequence Impedance Star Line = Sequence Impedance Line+(3*Fault Impedance Line) to calculate the Zero Sequence Impedance Star Line, The Zero Sequence Impedance for Star Connected Load formula consists of balanced three-phase impedance phasors which all have the same phase angles and rotate counterclockwise together. Zero Sequence Impedance Star Line is denoted by Z_0S(line) symbol.

How to calculate Zero Sequence Impedance for Star Connected Load using this online calculator? To use this online calculator for Zero Sequence Impedance for Star Connected Load, enter Sequence Impedance Line (Z_s(line)) & Fault Impedance Line (Z_f(line)) and hit the calculate button. Here is how the Zero Sequence Impedance for Star Connected Load calculation can be explained with given input values -> 25.271 = 1.751+(3*7.84).

FAQ

What is Zero Sequence Impedance for Star Connected Load?

The Zero Sequence Impedance for Star Connected Load formula consists of balanced three-phase impedance phasors which all have the same phase angles and rotate counterclockwise together and is represented as Z_0S(line) = Z_s(line)+(3*Z_f(line)) or Zero Sequence Impedance Star Line = Sequence Impedance Line+(3*Fault Impedance Line). Sequence Impedance Line is defined as the symmetric component of impedance & Fault Impedance Line is defined as the impedance that caused the fault.

How to calculate Zero Sequence Impedance for Star Connected Load?

The Zero Sequence Impedance for Star Connected Load formula consists of balanced three-phase impedance phasors which all have the same phase angles and rotate counterclockwise together is calculated using Zero Sequence Impedance Star Line = Sequence Impedance Line+(3*Fault Impedance Line). To calculate Zero Sequence Impedance for Star Connected Load, you need Sequence Impedance Line (Z_s(line)) & Fault Impedance Line (Z_f(line)). With our tool, you need to enter the respective value for Sequence Impedance Line & Fault Impedance 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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