Zero Sequence Current using A-Phase Current(Two Conductor Open) Calculator

✖A-Phase Current in TCO is the current that flows into the a-phase in open conductor fault.ⓘ A-Phase Current in TCO [I_a(tco)]			+10% -10%
✖Positive Sequence Impedance in TCO is consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.ⓘ Positive Sequence Impedance in TCO [Z_1(tco)]			+10% -10%
✖Zero Sequence Impedance in TCO 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 in TCO [Z_0(tco)]			+10% -10%
✖Negative Sequence Impedance in TCO in open conductor fault is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart.ⓘ Negative Sequence Impedance in TCO [Z_2(tco)]			+10% -10%

✖Zero Sequence Current in TCO is consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together.ⓘ Zero Sequence Current using A-Phase Current(Two Conductor Open) [I_0(tco)]

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Formula

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Zero Sequence Current using A-Phase Current(Two Conductor Open)

Formula

`"I"_{"0(tco)"} = "I"_{"a(tco)"}*("Z"_{"1(tco)"}/("Z"_{"0(tco)"}+"Z"_{"1(tco)"}+"Z"_{"2(tco)"}))`

Example

`"0.636948A"="4.84A"*("7.95Ω"/("7.96Ω"+"7.95Ω"+"44.5Ω"))`

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Zero Sequence Current using A-Phase Current(Two Conductor Open) Solution

STEP 0: Pre-Calculation Summary

Formula Used

Zero Sequence Current in TCO = A-Phase Current in TCO*(Positive Sequence Impedance in TCO/(Zero Sequence Impedance in TCO+Positive Sequence Impedance in TCO+Negative Sequence Impedance in TCO))
I_0(tco) = I_a(tco)*(Z_1(tco)/(Z_0(tco)+Z_1(tco)+Z_2(tco)))
This formula uses 5 Variables

Variables Used

Zero Sequence Current in TCO - (Measured in Ampere) - Zero Sequence Current in TCO is consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together.
A-Phase Current in TCO - (Measured in Ampere) - A-Phase Current in TCO is the current that flows into the a-phase in open conductor fault.
Positive Sequence Impedance in TCO - (Measured in Ohm) - Positive Sequence Impedance in TCO is consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.
Zero Sequence Impedance in TCO - (Measured in Ohm) - Zero Sequence Impedance in TCO is 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 in TCO - (Measured in Ohm) - Negative Sequence Impedance in TCO in open conductor fault is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart.

STEP 1: Convert Input(s) to Base Unit

A-Phase Current in TCO: 4.84 Ampere --> 4.84 Ampere No Conversion Required
Positive Sequence Impedance in TCO: 7.95 Ohm --> 7.95 Ohm No Conversion Required
Zero Sequence Impedance in TCO: 7.96 Ohm --> 7.96 Ohm No Conversion Required
Negative Sequence Impedance in TCO: 44.5 Ohm --> 44.5 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_0(tco) = I_a(tco)*(Z_1(tco)/(Z_0(tco)+Z_1(tco)+Z_2(tco))) --> 4.84*(7.95/(7.96+7.95+44.5))

Evaluating ... ...

I_0(tco) = 0.636947525244165

STEP 3: Convert Result to Output's Unit

0.636947525244165 Ampere --> No Conversion Required

FINAL ANSWER

0.636947525244165 ≈ 0.636948 Ampere <-- Zero Sequence Current in TCO

(Calculation completed in 00.004 seconds)

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Home » Engineering » Electrical » Power System » Fault » Open Conductor Fault » Two Conductor Open » Zero Sequence » Zero Sequence Current using A-Phase Current(Two Conductor Open)

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< 6 Zero Sequence Calculators

Zero Sequence Current using A-Phase Current(Two Conductor Open)

Go Zero Sequence Current in TCO = A-Phase Current in TCO*(Positive Sequence Impedance in TCO/(Zero Sequence Impedance in TCO+Positive Sequence Impedance in TCO+Negative Sequence Impedance in TCO))

Zero Sequence Potential Difference (Two Conductor Open)

Go Zero Sequence Potential Difference in TCO = ((-1)*Positive Sequence Potential Difference in TCO)-(Negative Sequence Potential Difference in TCO)

Zero Sequence Potential Difference using Potential Difference between B-Phase(Two Conductor Open)

Go Zero Sequence Potential Difference in TCO = (Potential Difference between B Phase in TCO+Potential Difference between C Phase in TCO)/3

Zero Sequence Impedance using Zero Sequence Voltage (Two Conductor Open)

Go Zero Sequence Impedance in TCO = (-1)*Zero Sequence Voltage in TCO/Zero Sequence Current in TCO

Zero Sequence Voltage using Zero Sequence Current (Two Conductor Open)

Go Zero Sequence Voltage in TCO = (-1)*Zero Sequence Current in TCO*Zero Sequence Impedance in TCO

Zero Sequence Current using Zero Sequence Voltage (Two Conductor Open)

Go Zero Sequence Current in TCO = (-1)*Zero Sequence Voltage in TCO/Zero Sequence Impedance in TCO

Zero Sequence Current using A-Phase Current(Two Conductor Open) Formula

What is the zero sequence?

The zero-sequence component represents an unbalance that causes current flow in the neutral. The negative sequence component is similar to the positive sequence system, except that the resulting reaction field rotates in the opposite direction to the d.c. field system.

How to Calculate Zero Sequence Current using A-Phase Current(Two Conductor Open)?

Zero Sequence Current using A-Phase Current(Two Conductor Open) calculator uses Zero Sequence Current in TCO = A-Phase Current in TCO*(Positive Sequence Impedance in TCO/(Zero Sequence Impedance in TCO+Positive Sequence Impedance in TCO+Negative Sequence Impedance in TCO)) to calculate the Zero Sequence Current in TCO, The Zero Sequence Current using A-phase current(Two conductor open) formula consists of balanced three-phase voltage and current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ACB rotation. Zero Sequence Current in TCO is denoted by I_0(tco) symbol.

How to calculate Zero Sequence Current using A-Phase Current(Two Conductor Open) using this online calculator? To use this online calculator for Zero Sequence Current using A-Phase Current(Two Conductor Open), enter A-Phase Current in TCO (I_a(tco)), Positive Sequence Impedance in TCO (Z_1(tco)), Zero Sequence Impedance in TCO (Z_0(tco)) & Negative Sequence Impedance in TCO (Z_2(tco)) and hit the calculate button. Here is how the Zero Sequence Current using A-Phase Current(Two Conductor Open) calculation can be explained with given input values -> 0.637053 = 4.84*(7.95/(7.96+7.95+44.5)).

FAQ

What is Zero Sequence Current using A-Phase Current(Two Conductor Open)?

The Zero Sequence Current using A-phase current(Two conductor open) formula consists of balanced three-phase voltage and current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ACB rotation and is represented as I_0(tco) = I_a(tco)*(Z_1(tco)/(Z_0(tco)+Z_1(tco)+Z_2(tco))) or Zero Sequence Current in TCO = A-Phase Current in TCO*(Positive Sequence Impedance in TCO/(Zero Sequence Impedance in TCO+Positive Sequence Impedance in TCO+Negative Sequence Impedance in TCO)). A-Phase Current in TCO is the current that flows into the a-phase in open conductor fault, Positive Sequence Impedance in TCO is consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation, Zero Sequence Impedance in TCO is 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 in TCO in open conductor fault is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart.

How to calculate Zero Sequence Current using A-Phase Current(Two Conductor Open)?

The Zero Sequence Current using A-phase current(Two conductor open) formula consists of balanced three-phase voltage and current phasors which are exactly at ₁₂₀ degrees apart rotating counterclockwise in ACB rotation is calculated using Zero Sequence Current in TCO = A-Phase Current in TCO*(Positive Sequence Impedance in TCO/(Zero Sequence Impedance in TCO+Positive Sequence Impedance in TCO+Negative Sequence Impedance in TCO)). To calculate Zero Sequence Current using A-Phase Current(Two Conductor Open), you need A-Phase Current in TCO (I_a(tco)), Positive Sequence Impedance in TCO (Z_1(tco)), Zero Sequence Impedance in TCO (Z_0(tco)) & Negative Sequence Impedance in TCO (Z_2(tco)). With our tool, you need to enter the respective value for A-Phase Current in TCO, Positive Sequence Impedance in TCO, Zero Sequence Impedance in TCO & Negative Sequence Impedance in TCO 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 Zero Sequence Current in TCO?

In this formula, Zero Sequence Current in TCO uses A-Phase Current in TCO, Positive Sequence Impedance in TCO, Zero Sequence Impedance in TCO & Negative Sequence Impedance in TCO. We can use 1 other way(s) to calculate the same, which is/are as follows -

Zero Sequence Current in TCO = (-1)*Zero Sequence Voltage in TCO/Zero Sequence Impedance in TCO

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