A-Phase EMF using Zero Sequence Impedance (One Conductor Open) Calculator

✖Positive Sequence Current in OCO is consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.ⓘ Positive Sequence Current in OCO [I_1(oco)]			+10% -10%
✖Positive Sequence Impedance in OCO 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 OCO [Z_1(oco)]			+10% -10%
✖Zero Sequence Impedance in OCO 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 OCO [Z_0(oco)]			+10% -10%
✖Negative Sequence Impedance in OCO is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.ⓘ Negative Sequence Impedance in OCO [Z_2(oco)]			+10% -10%

✖A phase EMF in OCO is defined as the electromagnetic force of the a-phase in open conductor fault.ⓘ A-Phase EMF using Zero Sequence Impedance (One Conductor Open) [E_a(oco)]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Open Conductor Fault Formulas PDF PDF Image

A-Phase EMF using Zero Sequence Impedance (One Conductor Open) Solution

STEP 0: Pre-Calculation Summary

Formula Used

A Phase EMF in OCO = Positive Sequence Current in OCO*(Positive Sequence Impedance in OCO+((Zero Sequence Impedance in OCO*Negative Sequence Impedance in OCO)/(Zero Sequence Impedance in OCO+Negative Sequence Impedance in OCO)))
E_a(oco) = I_1(oco)*(Z_1(oco)+((Z_0(oco)*Z_2(oco))/(Z_0(oco)+Z_2(oco))))
This formula uses 5 Variables

Variables Used

A Phase EMF in OCO - (Measured in Volt) - A phase EMF in OCO is defined as the electromagnetic force of the a-phase in open conductor fault.
Positive Sequence Current in OCO - (Measured in Ampere) - Positive Sequence Current in OCO 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 OCO - (Measured in Ohm) - Positive Sequence Impedance in OCO 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 OCO - (Measured in Ohm) - Zero Sequence Impedance in OCO 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 OCO - (Measured in Ohm) - Negative Sequence Impedance in OCO is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

STEP 1: Convert Input(s) to Base Unit

Positive Sequence Current in OCO: 2.001 Ampere --> 2.001 Ampere No Conversion Required
Positive Sequence Impedance in OCO: 7.94 Ohm --> 7.94 Ohm No Conversion Required
Zero Sequence Impedance in OCO: 8 Ohm --> 8 Ohm No Conversion Required
Negative Sequence Impedance in OCO: 44.6 Ohm --> 44.6 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

E_a(oco) = I_1(oco)*(Z_1(oco)+((Z_0(oco)*Z_2(oco))/(Z_0(oco)+Z_2(oco)))) --> 2.001*(7.94+((8*44.6)/(8+44.6)))

Evaluating ... ...

E_a(oco) = 29.4612631939164

STEP 3: Convert Result to Output's Unit

29.4612631939164 Volt --> No Conversion Required

FINAL ANSWER

29.4612631939164 ≈ 29.46126 Volt <-- A Phase EMF in OCO

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electrical » Power System » Fault » Open Conductor Fault » One Conductor Open » A-Phase EMF using Zero Sequence Impedance (One Conductor Open)

Credits

Created by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

Urvi Rathod has created this Calculator and 1500+ more calculators!

Verified by Kethavath Srinath

Osmania University (OU), Hyderabad

Kethavath Srinath has verified this Calculator and 1200+ more calculators!

< One Conductor Open Calculators

A-Phase EMF using Zero Sequence Impedance (One Conductor Open)

LaTeX Go A Phase EMF in OCO = Positive Sequence Current in OCO*(Positive Sequence Impedance in OCO+((Zero Sequence Impedance in OCO*Negative Sequence Impedance in OCO)/(Zero Sequence Impedance in OCO+Negative Sequence Impedance in OCO)))

A-Phase EMF using Positive Sequence Voltage (One Conductor Open)

LaTeX Go A Phase EMF in OCO = Positive Sequence Voltage in OCO+Positive Sequence Current in OCO*Positive Sequence Impedance in OCO

Potential Difference between A-Phase and Neutral (One Conductor Open)

LaTeX Go A Phase Voltage in OCO = Zero Sequence Voltage in OCO+Positive Sequence Voltage in OCO+Negative Sequence Voltage in OCO

Potential Difference between A-Phase using Zero Sequence Potential Difference (One Conductor Open)

LaTeX Go Potential Difference Between A Phase in OCO = Zero Sequence Potential Difference in OCO/3

A-Phase EMF using Zero Sequence Impedance (One Conductor Open) Formula

LaTeX Go

What are open conductor faults?

Open conductor faults are series faults that involve a break in one or two of the three conductors of a three-phase power system. The phenomenon is treated analytically through calculations and then the calculated results are confirmed through computer simulations using SIMPOW, a power system simulation software.

How to Calculate A-Phase EMF using Zero Sequence Impedance (One Conductor Open)?

A-Phase EMF using Zero Sequence Impedance (One Conductor Open) calculator uses A Phase EMF in OCO = Positive Sequence Current in OCO*(Positive Sequence Impedance in OCO+((Zero Sequence Impedance in OCO*Negative Sequence Impedance in OCO)/(Zero Sequence Impedance in OCO+Negative Sequence Impedance in OCO))) to calculate the A Phase EMF in OCO, The a-phase EMF using Zero Sequence Impedance (One conductor open) formula is defined as the concept of zero sequence impedance is used to analyze the flow of zero sequence currents. Zero sequence currents are those that are equal and in phase in all three phases (A, B, and C) of the system. These currents typically arise due to ground faults and unbalanced loads. The zero sequence impedance of a three-phase system is denoted by Z0 and is a complex quantity that takes into account the system's resistance and reactance for zero sequence currents. A Phase EMF in OCO is denoted by E_a(oco) symbol.

How to calculate A-Phase EMF using Zero Sequence Impedance (One Conductor Open) using this online calculator? To use this online calculator for A-Phase EMF using Zero Sequence Impedance (One Conductor Open), enter Positive Sequence Current in OCO (I_1(oco)), Positive Sequence Impedance in OCO (Z_1(oco)), Zero Sequence Impedance in OCO (Z_0(oco)) & Negative Sequence Impedance in OCO (Z_2(oco)) and hit the calculate button. Here is how the A-Phase EMF using Zero Sequence Impedance (One Conductor Open) calculation can be explained with given input values -> 29.36043 = 2.001*(7.94+((8*44.6)/(8+44.6))).

FAQ

What is A-Phase EMF using Zero Sequence Impedance (One Conductor Open)?

The a-phase EMF using Zero Sequence Impedance (One conductor open) formula is defined as the concept of zero sequence impedance is used to analyze the flow of zero sequence currents. Zero sequence currents are those that are equal and in phase in all three phases (A, B, and C) of the system. These currents typically arise due to ground faults and unbalanced loads. The zero sequence impedance of a three-phase system is denoted by Z0 and is a complex quantity that takes into account the system's resistance and reactance for zero sequence currents and is represented as E_a(oco) = I_1(oco)*(Z_1(oco)+((Z_0(oco)*Z_2(oco))/(Z_0(oco)+Z_2(oco)))) or A Phase EMF in OCO = Positive Sequence Current in OCO*(Positive Sequence Impedance in OCO+((Zero Sequence Impedance in OCO*Negative Sequence Impedance in OCO)/(Zero Sequence Impedance in OCO+Negative Sequence Impedance in OCO))). Positive Sequence Current in OCO 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 OCO 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 OCO 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 OCO is consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

How to calculate A-Phase EMF using Zero Sequence Impedance (One Conductor Open)?

The a-phase EMF using Zero Sequence Impedance (One conductor open) formula is defined as the concept of zero sequence impedance is used to analyze the flow of zero sequence currents. Zero sequence currents are those that are equal and in phase in all three phases (A, B, and C) of the system. These currents typically arise due to ground faults and unbalanced loads. The zero sequence impedance of a three-phase system is denoted by Z0 and is a complex quantity that takes into account the system's resistance and reactance for zero sequence currents is calculated using A Phase EMF in OCO = Positive Sequence Current in OCO*(Positive Sequence Impedance in OCO+((Zero Sequence Impedance in OCO*Negative Sequence Impedance in OCO)/(Zero Sequence Impedance in OCO+Negative Sequence Impedance in OCO))). To calculate A-Phase EMF using Zero Sequence Impedance (One Conductor Open), you need Positive Sequence Current in OCO (I_1(oco)), Positive Sequence Impedance in OCO (Z_1(oco)), Zero Sequence Impedance in OCO (Z_0(oco)) & Negative Sequence Impedance in OCO (Z_2(oco)). With our tool, you need to enter the respective value for Positive Sequence Current in OCO, Positive Sequence Impedance in OCO, Zero Sequence Impedance in OCO & Negative Sequence Impedance in OCO 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 A Phase EMF in OCO?

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

A Phase EMF in OCO = Positive Sequence Voltage in OCO+Positive Sequence Current in OCO*Positive Sequence Impedance in OCO

Home

FREE PDFs

🔍 Search