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Zero Sequence Current using A-Phase EMF (LGF) Formula

GoZero Sequence Current using A-Phase Current (LGF) Formula

GoZero Sequence Current for L-G-F Formula

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Zero Sequence Current LG consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together. Check FAQs

I 0(lg) = \frac{E 1(lg)}{Z 0(lg) + Z 2(lg) + Z 1(lg) + (3 \cdot Z f(lg))}

I_0(lg) - Zero Sequence Current LG?E_1(lg) - EMF Induced in Primary Winding LG?Z_0(lg) - Zero Sequence Impedance LG?Z_2(lg) - Negative Sequence Impedance LG?Z_1(lg) - Positive Sequence Impedance LG?Z_f(lg) - Fault Impedance LG?

Zero Sequence Current using A-Phase EMF (LGF) Example

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Here is how the Zero Sequence Current using A-Phase EMF (LGF) equation looks like with Values.

Here is how the Zero Sequence Current using A-Phase EMF (LGF) equation looks like with Units.

Here is how the Zero Sequence Current using A-Phase EMF (LGF) equation looks like.

-0.8485 = \frac{20.5}{8 + -44.6 + 7.94 + (3 \cdot 1.5)}

-0.8485A = \frac{20.5V}{8Ω + -44.6Ω + 7.94Ω + (3 \cdot 1.5Ω)}

-0.8485 = \frac{20.5}{8 + -44.6 + 7.94 + (3 \cdot 1.5)}

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Zero Sequence Current using A-Phase EMF (LGF) Solution

Follow our step by step solution on how to calculate Zero Sequence Current using A-Phase EMF (LGF)?

FIRST Step Consider the formula

I 0(lg) = \frac{E 1(lg)}{Z 0(lg) + Z 2(lg) + Z 1(lg) + (3 \cdot Z f(lg))}

Next Step Substitute values of Variables

∴

I 0(lg) = \frac{20.5V}{8Ω + -44.6Ω + 7.94Ω + (3 \cdot 1.5Ω)}

Next Step Prepare to Evaluate

∴

I 0(lg) = \frac{20.5}{8 + -44.6 + 7.94 + (3 \cdot 1.5)}

Next Step Evaluate

∴

I 0(lg) = -0.848509933774834A

LAST Step Rounding Answer

∴

I 0(lg) = -0.8485A

Zero Sequence Current using A-Phase EMF (LGF) Formula Elements

Variables

Zero Sequence Current LG

Zero Sequence Current LG consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together.

Symbol: I_0(lg)

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Zero Sequence Current LG

EMF Induced in Primary Winding LG

EMF Induced in Primary Winding LG is the production of voltage in a coil because of the change in magnetic flux through a coil.

Symbol: E_1(lg)

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find EMF Induced in Primary Winding LG

Zero Sequence Impedance LG

Zero Sequence Impedance LG consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counter clockwise together.

Symbol: Z_0(lg)

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Zero Sequence Impedance LG

Negative Sequence Impedance LG

Negative Sequence Impedance LG consists of balanced three-phase impedance phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

Symbol: Z_2(lg)

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Negative Sequence Impedance LG

Positive Sequence Impedance LG

Positive Sequence Impedance LG consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.

Symbol: Z_1(lg)

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Positive Sequence Impedance LG

Fault Impedance LG

Fault Impedance LG is a measure of the resistance and reactance in an electrical circuit that is used to calculate the fault current that flows through the circuit in the event of a fault.

Symbol: Z_f(lg)

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Fault Impedance LG

Other Formulas to find Zero Sequence Current LG

Go Zero Sequence Current using A-Phase Current (LGF)

I 0(lg) = \frac{I a(lg)}{3}

Go Zero Sequence Current for L-G-F

I 0(lg) = (- 1) \cdot \frac{V 0(lg)}{Z 0(lg)}

Other formulas in Current category

Go Positive Sequence Current using Fault Impedance(LGF)

I 1(lg) = \frac{V 1(lg) + V 2(lg) + V 0(lg)}{3 \cdot Z f(lg)}

Go A-Phase Current using Positive Sequence Current (LGF)

I a(lg) = I 1(lg) \cdot 3

Go A-Phase Current using Negative Sequence Current (LGF)

I a(lg) = 3 \cdot I 2(lg)

Go A-Phase Current using Zero Sequence Current (LGF)

I a(lg) = I 0(lg) \cdot 3

How to Evaluate Zero Sequence Current using A-Phase EMF (LGF)?

Zero Sequence Current using A-Phase EMF (LGF) evaluator uses Zero Sequence Current LG = EMF Induced in Primary Winding LG/(Zero Sequence Impedance LG+Negative Sequence Impedance LG+Positive Sequence Impedance LG+(3*Fault Impedance LG)) to evaluate the Zero Sequence Current LG, The Zero Sequence Current using a-phase EMF (LGF) formula is consists of a balanced three-phase current, phasors of which all have the same phase angles and rotate counterclockwise together. Zero Sequence Current LG is denoted by I_0(lg) symbol.

How to evaluate Zero Sequence Current using A-Phase EMF (LGF) using this online evaluator? To use this online evaluator for Zero Sequence Current using A-Phase EMF (LGF), enter EMF Induced in Primary Winding LG (E_1(lg)), Zero Sequence Impedance LG (Z_0(lg)), Negative Sequence Impedance LG (Z_2(lg)), Positive Sequence Impedance LG (Z_1(lg)) & Fault Impedance LG (Z_f(lg)) and hit the calculate button.

FAQs on Zero Sequence Current using A-Phase EMF (LGF)

What is the formula to find Zero Sequence Current using A-Phase EMF (LGF)?

The formula of Zero Sequence Current using A-Phase EMF (LGF) is expressed as Zero Sequence Current LG = EMF Induced in Primary Winding LG/(Zero Sequence Impedance LG+Negative Sequence Impedance LG+Positive Sequence Impedance LG+(3*Fault Impedance LG)). Here is an example- -0.84851 = 20.5/(8+(-44.6)+7.94+(3*1.5)).

How to calculate Zero Sequence Current using A-Phase EMF (LGF)?

With EMF Induced in Primary Winding LG (E_1(lg)), Zero Sequence Impedance LG (Z_0(lg)), Negative Sequence Impedance LG (Z_2(lg)), Positive Sequence Impedance LG (Z_1(lg)) & Fault Impedance LG (Z_f(lg)) we can find Zero Sequence Current using A-Phase EMF (LGF) using the formula - Zero Sequence Current LG = EMF Induced in Primary Winding LG/(Zero Sequence Impedance LG+Negative Sequence Impedance LG+Positive Sequence Impedance LG+(3*Fault Impedance LG)).

What are the other ways to Calculate Zero Sequence Current LG?

Here are the different ways to Calculate Zero Sequence Current LG-

Zero Sequence Current LG=A-Phase Current LG/3
Zero Sequence Current LG=(-1)*Zero Sequence Voltage LG/Zero Sequence Impedance LG

Can the Zero Sequence Current using A-Phase EMF (LGF) be negative?

Yes, the Zero Sequence Current using A-Phase EMF (LGF), measured in Electric Current can be negative.

Which unit is used to measure Zero Sequence Current using A-Phase EMF (LGF)?

Zero Sequence Current using A-Phase EMF (LGF) is usually measured using the Ampere[A] for Electric Current. Milliampere[A], Microampere[A], Centiampere[A] are the few other units in which Zero Sequence Current using A-Phase EMF (LGF) can be measured.

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Zero Sequence Current using A-Phase EMF (LGF) Formula

​GoZero Sequence Current using A-Phase Current (LGF) Formula

​GoZero Sequence Current for L-G-F Formula

Zero Sequence Current using A-Phase EMF (LGF) Example

Zero Sequence Current using A-Phase EMF (LGF) Solution

Zero Sequence Current using A-Phase EMF (LGF) Formula Elements

Other Formulas to find Zero Sequence Current LG

Other formulas in Current category

How to Evaluate Zero Sequence Current using A-Phase EMF (LGF)?

FAQs on Zero Sequence Current using A-Phase EMF (LGF)

Variable Name

GoZero Sequence Current using A-Phase Current (LGF) Formula

GoZero Sequence Current for L-G-F Formula