Negative Sequence Impedance for Transformer Calculator

✖Negative Sequence Voltage Xmer is consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.ⓘ Negative Sequence Voltage Xmer [V_2(xmer)]			+10% -10%
✖Negative Sequence Current Xmer is consists of balanced three-phase current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.ⓘ Negative Sequence Current Xmer [I_2(xmer)]			+10% -10%

✖Negative Sequence Impedance Xmer is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.ⓘ Negative Sequence Impedance for Transformer [Z_2(xmer)]

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Formula

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Negative Sequence Impedance for Transformer

Formula

`"Z"_{"2(xmer)"} = "V"_{"2(xmer)"}/"I"_{"2(xmer)"}`

Example

`"-44.597222Ω"="16.055V"/"-0.36A"`

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Negative Sequence Impedance for Transformer Solution

STEP 0: Pre-Calculation Summary

Formula Used

Negative Sequence Impedance Xmer = Negative Sequence Voltage Xmer/Negative Sequence Current Xmer
Z_2(xmer) = V_2(xmer)/I_2(xmer)
This formula uses 3 Variables

Variables Used

Negative Sequence Impedance Xmer - (Measured in Ohm) - Negative Sequence Impedance Xmer is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.
Negative Sequence Voltage Xmer - (Measured in Volt) - Negative Sequence Voltage Xmer is consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.
Negative Sequence Current Xmer - (Measured in Ampere) - Negative Sequence Current Xmer is consists of balanced three-phase current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

STEP 1: Convert Input(s) to Base Unit

Negative Sequence Voltage Xmer: 16.055 Volt --> 16.055 Volt No Conversion Required
Negative Sequence Current Xmer: -0.36 Ampere --> -0.36 Ampere No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Z_2(xmer) = V_2(xmer)/I_2(xmer) --> 16.055/(-0.36)

Evaluating ... ...

Z_2(xmer) = -44.5972222222222

STEP 3: Convert Result to Output's Unit

-44.5972222222222 Ohm --> No Conversion Required

FINAL ANSWER

-44.5972222222222 ≈ -44.597222 Ohm <-- Negative Sequence Impedance Xmer

(Calculation completed in 00.020 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

Negative Sequence Impedance for Transformer Formula

Negative Sequence Impedance Xmer = Negative Sequence Voltage Xmer/Negative Sequence Current Xmer
Z_2(xmer) = V_2(xmer)/I_2(xmer)

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 Negative Sequence Impedance for Transformer?

Negative Sequence Impedance for Transformer calculator uses Negative Sequence Impedance Xmer = Negative Sequence Voltage Xmer/Negative Sequence Current Xmer to calculate the Negative Sequence Impedance Xmer, The Negative Sequence Impedance for transformer formula consists of balanced three-phase impedance phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ACB rotation. Negative Sequence Impedance Xmer is denoted by Z_2(xmer) symbol.

How to calculate Negative Sequence Impedance for Transformer using this online calculator? To use this online calculator for Negative Sequence Impedance for Transformer, enter Negative Sequence Voltage Xmer (V_2(xmer)) & Negative Sequence Current Xmer (I_2(xmer)) and hit the calculate button. Here is how the Negative Sequence Impedance for Transformer calculation can be explained with given input values -> -44.6 = 16.055/(-0.36).

FAQ

What is Negative Sequence Impedance for Transformer?

The Negative Sequence Impedance for transformer formula consists of balanced three-phase impedance phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ACB rotation and is represented as Z_2(xmer) = V_2(xmer)/I_2(xmer) or Negative Sequence Impedance Xmer = Negative Sequence Voltage Xmer/Negative Sequence Current Xmer. Negative Sequence Voltage Xmer is consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation & Negative Sequence Current Xmer is consists of balanced three-phase current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

How to calculate Negative Sequence Impedance for Transformer?

The Negative Sequence Impedance for transformer formula consists of balanced three-phase impedance phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ACB rotation is calculated using Negative Sequence Impedance Xmer = Negative Sequence Voltage Xmer/Negative Sequence Current Xmer. To calculate Negative Sequence Impedance for Transformer, you need Negative Sequence Voltage Xmer (V_2(xmer)) & Negative Sequence Current Xmer (I_2(xmer)). With our tool, you need to enter the respective value for Negative Sequence Voltage Xmer & Negative Sequence Current Xmer 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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