Leakage Impedance for Transformer given Zero Sequence Current Calculator

✖Zero Sequence Voltage Xmer is consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counterclockwise together.ⓘ Zero Sequence Voltage Xmer [V_0(xmer)]			+10% -10%
✖Zero Sequence Current Xmer is consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together.ⓘ Zero Sequence Current Xmer [I_0(xmer)]			+10% -10%
✖Fault Impedance Xmer is defined as the impedance that caused the fault.ⓘ Fault Impedance Xmer [Z_f(xmer)]			+10% -10%

✖Leakage Impedance Xmer is defined as the part of the impedance of a transformer that corresponds to the leakage flux into the sequence network.ⓘ Leakage Impedance for Transformer given Zero Sequence Current [Z_{Leakage(xmer)}]

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Formula

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Leakage Impedance for Transformer given Zero Sequence Current

Formula

`"Z"_{"Leakage(xmer)"} = ("V"_{"0(xmer)"}/"I"_{"0(xmer)"})-3*"Z"_{"f(xmer)"}`

Example

`"6.703801Ω"=("17.6V"/"2.21A")-3*"0.42Ω"`

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Leakage Impedance for Transformer given Zero Sequence Current Solution

STEP 0: Pre-Calculation Summary

Formula Used

Leakage Impedance Xmer = (Zero Sequence Voltage Xmer/Zero Sequence Current Xmer)-3*Fault Impedance Xmer
Z_{Leakage(xmer)} = (V_0(xmer)/I_0(xmer))-3*Z_f(xmer)
This formula uses 4 Variables

Variables Used

Leakage Impedance Xmer - (Measured in Ohm) - Leakage Impedance Xmer is defined as the part of the impedance of a transformer that corresponds to the leakage flux into the sequence network.
Zero Sequence Voltage Xmer - (Measured in Volt) - Zero Sequence Voltage Xmer is consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counterclockwise together.
Zero Sequence Current Xmer - (Measured in Ampere) - Zero Sequence Current Xmer is consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together.
Fault Impedance Xmer - (Measured in Ohm) - Fault Impedance Xmer is defined as the impedance that caused the fault.

STEP 1: Convert Input(s) to Base Unit

Zero Sequence Voltage Xmer: 17.6 Volt --> 17.6 Volt No Conversion Required
Zero Sequence Current Xmer: 2.21 Ampere --> 2.21 Ampere No Conversion Required
Fault Impedance Xmer: 0.42 Ohm --> 0.42 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Z_{Leakage(xmer)} = (V_0(xmer)/I_0(xmer))-3*Z_f(xmer) --> (17.6/2.21)-3*0.42

Evaluating ... ...

Z_{Leakage(xmer)} = 6.70380090497738

STEP 3: Convert Result to Output's Unit

6.70380090497738 Ohm --> No Conversion Required

FINAL ANSWER

6.70380090497738 ≈ 6.703801 Ohm <-- Leakage Impedance Xmer

(Calculation completed in 00.004 seconds)

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< 8 Transformer Sequence Impedance Calculators

Leakage Impedance for Transformer given Zero Sequence Current

Go Leakage Impedance Xmer = (Zero Sequence Voltage Xmer/Zero Sequence Current Xmer)-3*Fault Impedance Xmer

Neutral Impedance for Star Connected Load using Zero Sequence Voltage

Go Fault Impedance Xmer = ((Zero Sequence Voltage Xmer/Zero Sequence Current Xmer)-Star Impedance Xmer)/3

Positive Sequence Impedance for Transformer

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

Negative Sequence Impedance for Transformer

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

Leakage Impedance for Transformer given Positive Sequence Voltage

Go Leakage Impedance Xmer = Positive Sequence Voltage Xmer/Positive Sequence Current Xmer

Zero Sequence Impedance for Transformer

Go Zero Sequence Impedance Xmer = Zero Sequence Voltage Xmer/Zero Sequence Current Xmer

Delta Impedance using Star Impedance

Go Delta Impedance Xmer = Star Impedance Xmer*3

Star Impedance using Delta Impedance

Go Star Impedance Xmer = Delta Impedance Xmer/3

Leakage Impedance for Transformer given Zero Sequence Current Formula

Leakage Impedance Xmer = (Zero Sequence Voltage Xmer/Zero Sequence Current Xmer)-3*Fault Impedance Xmer
Z_{Leakage(xmer)} = (V_0(xmer)/I_0(xmer))-3*Z_f(xmer)

What is the zero-Sequence Current?

The unbalanced current flows in the circuit during the earth fault is known as the zero-sequence current or the DC component of the fault current. The zero phase sequence means the magnitude of three phases has zero phase displacement.

How to Calculate Leakage Impedance for Transformer given Zero Sequence Current?

Leakage Impedance for Transformer given Zero Sequence Current calculator uses Leakage Impedance Xmer = (Zero Sequence Voltage Xmer/Zero Sequence Current Xmer)-3*Fault Impedance Xmer to calculate the Leakage Impedance Xmer, The Leakage Impedance for Transformer given Zero Sequence Current formula is defined as the part of the impedance of a transformer that corresponds to the leakage flux into the sequence network. Leakage Impedance Xmer is denoted by Z_{Leakage(xmer)} symbol.

How to calculate Leakage Impedance for Transformer given Zero Sequence Current using this online calculator? To use this online calculator for Leakage Impedance for Transformer given Zero Sequence Current, enter Zero Sequence Voltage Xmer (V_0(xmer)), Zero Sequence Current Xmer (I_0(xmer)) & Fault Impedance Xmer (Z_f(xmer)) and hit the calculate button. Here is how the Leakage Impedance for Transformer given Zero Sequence Current calculation can be explained with given input values -> 6.74 = (17.6/2.21)-3*0.42.

FAQ

What is Leakage Impedance for Transformer given Zero Sequence Current?

The Leakage Impedance for Transformer given Zero Sequence Current formula is defined as the part of the impedance of a transformer that corresponds to the leakage flux into the sequence network and is represented as Z_{Leakage(xmer)} = (V_0(xmer)/I_0(xmer))-3*Z_f(xmer) or Leakage Impedance Xmer = (Zero Sequence Voltage Xmer/Zero Sequence Current Xmer)-3*Fault Impedance Xmer. Zero Sequence Voltage Xmer is consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counterclockwise together, Zero Sequence Current Xmer is consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together & Fault Impedance Xmer is defined as the impedance that caused the fault.

How to calculate Leakage Impedance for Transformer given Zero Sequence Current?

The Leakage Impedance for Transformer given Zero Sequence Current formula is defined as the part of the impedance of a transformer that corresponds to the leakage flux into the sequence network is calculated using Leakage Impedance Xmer = (Zero Sequence Voltage Xmer/Zero Sequence Current Xmer)-3*Fault Impedance Xmer. To calculate Leakage Impedance for Transformer given Zero Sequence Current, you need Zero Sequence Voltage Xmer (V_0(xmer)), Zero Sequence Current Xmer (I_0(xmer)) & Fault Impedance Xmer (Z_f(xmer)). With our tool, you need to enter the respective value for Zero Sequence Voltage Xmer, Zero Sequence Current Xmer & Fault Impedance Xmer 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 Leakage Impedance Xmer?

In this formula, Leakage Impedance Xmer uses Zero Sequence Voltage Xmer, Zero Sequence Current Xmer & Fault Impedance Xmer. We can use 1 other way(s) to calculate the same, which is/are as follows -

Leakage Impedance Xmer = Positive Sequence Voltage Xmer/Positive Sequence Current Xmer

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