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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. Check FAQs
Z1(tco)=(Ea(tco)I1(tco))-Z0(tco)-Z2(tco)
Z1(tco) - Positive Sequence Impedance in TCO?Ea(tco) - A Phase EMF in TCO?I1(tco) - Positive Sequence Current in TCO?Z0(tco) - Zero Sequence Impedance in TCO?Z2(tco) - Negative Sequence Impedance in TCO?

Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) Example

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Here is how the Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) equation looks like with Values.

Here is how the Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) equation looks like with Units.

Here is how the Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) equation looks like.

7.9281Edit=(121.38Edit2.01Edit)-7.96Edit-44.5Edit
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Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) Solution

Follow our step by step solution on how to calculate Positive Sequence Impedance using A-Phase EMF (Two Conductor Open)?

FIRST Step Consider the formula
Z1(tco)=(Ea(tco)I1(tco))-Z0(tco)-Z2(tco)
Next Step Substitute values of Variables
Z1(tco)=(121.38V2.01A)-7.96Ω-44.5Ω
Next Step Prepare to Evaluate
Z1(tco)=(121.382.01)-7.96-44.5
Next Step Evaluate
Z1(tco)=7.92805970149254Ω
LAST Step Rounding Answer
Z1(tco)=7.9281Ω

Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) Formula Elements

Variables
Positive Sequence Impedance in TCO
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.
Symbol: Z1(tco)
Measurement: Electric ResistanceUnit: Ω
Note: Value should be greater than 0.
A Phase EMF in TCO
A Phase EMF in TCO is defined as the electromagnetic force of the a-phase in open conductor fault.
Symbol: Ea(tco)
Measurement: Electric PotentialUnit: V
Note: Value can be positive or negative.
Positive Sequence Current in TCO
Positive Sequence Current in TCO is consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.
Symbol: I1(tco)
Measurement: Electric CurrentUnit: A
Note: Value should be greater than 0.
Zero Sequence Impedance in TCO
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.
Symbol: Z0(tco)
Measurement: Electric ResistanceUnit: Ω
Note: Value should be greater than 0.
Negative Sequence Impedance in TCO
Negative Sequence Impedance in TCO in open conductor fault is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart.
Symbol: Z2(tco)
Measurement: Electric ResistanceUnit: Ω
Note: Value should be greater than 0.

Other Formulas to find Positive Sequence Impedance in TCO

​Go Positive Sequence Impedance using Positive Sequence Voltage (Two Conductor Open)
Z1(tco)=Ea(tco)-V1(tco)I1(tco)

Other formulas in Positive Sequence category

​Go Positive Sequence Current (Two Conductor Open)
I1(tco)=Ia(tco)3
​Go Positive Sequence Potential Difference (Two Conductor Open)
Vaa'1(tco)=((-1)Vaa'2(tco))-Vaa'0(tco)
​Go Positive Sequence Current using A-Phase EMF (Two Conductor Open)
I1(tco)=Ea(tco)Z0(tco)+Z1(tco)+Z2(tco)
​Go Positive Sequence Current using Positive Sequence Voltage (Two Conductor Open)
I1(tco)=Ea(tco)-V1(tco)Z1(tco)

How to Evaluate Positive Sequence Impedance using A-Phase EMF (Two Conductor Open)?

Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) evaluator uses Positive Sequence Impedance in TCO = (A Phase EMF in TCO/Positive Sequence Current in TCO)-Zero Sequence Impedance in TCO-Negative Sequence Impedance in TCO to evaluate the Positive Sequence Impedance in TCO, The Positive Sequence Impedance using A-Phase EMF (Two conductor open) formula 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 is denoted by Z1(tco) symbol.

How to evaluate Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) using this online evaluator? To use this online evaluator for Positive Sequence Impedance using A-Phase EMF (Two Conductor Open), enter A Phase EMF in TCO (Ea(tco)), Positive Sequence Current in TCO (I1(tco)), Zero Sequence Impedance in TCO (Z0(tco)) & Negative Sequence Impedance in TCO (Z2(tco)) and hit the calculate button.

FAQs on Positive Sequence Impedance using A-Phase EMF (Two Conductor Open)

What is the formula to find Positive Sequence Impedance using A-Phase EMF (Two Conductor Open)?
The formula of Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) is expressed as Positive Sequence Impedance in TCO = (A Phase EMF in TCO/Positive Sequence Current in TCO)-Zero Sequence Impedance in TCO-Negative Sequence Impedance in TCO. Here is an example- 7.93806 = (121.38/2.01)-7.96-44.5.
How to calculate Positive Sequence Impedance using A-Phase EMF (Two Conductor Open)?
With A Phase EMF in TCO (Ea(tco)), Positive Sequence Current in TCO (I1(tco)), Zero Sequence Impedance in TCO (Z0(tco)) & Negative Sequence Impedance in TCO (Z2(tco)) we can find Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) using the formula - Positive Sequence Impedance in TCO = (A Phase EMF in TCO/Positive Sequence Current in TCO)-Zero Sequence Impedance in TCO-Negative Sequence Impedance in TCO.
What are the other ways to Calculate Positive Sequence Impedance in TCO?
Here are the different ways to Calculate Positive Sequence Impedance in TCO-
  • Positive Sequence Impedance in TCO=(A Phase EMF in TCO-Positive Sequence Voltage in TCO)/Positive Sequence Current in TCOOpenImg
Can the Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) be negative?
No, the Positive Sequence Impedance using A-Phase EMF (Two Conductor Open), measured in Electric Resistance cannot be negative.
Which unit is used to measure Positive Sequence Impedance using A-Phase EMF (Two Conductor Open)?
Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) is usually measured using the Ohm[Ω] for Electric Resistance. Megohm[Ω], Microhm[Ω], Volt per Ampere[Ω] are the few other units in which Positive Sequence Impedance using A-Phase EMF (Two Conductor Open) can be measured.
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