FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

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

GoPositive Sequence Current using Fault Impedance(LGF) Formula

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

Fx Copy

LaTeX Copy

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

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

I_1(lg) - Positive Sequence Current LG?E_a(lg) - A Phase EMF 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?

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

With values

With units

Only example

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

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

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

-1.2161 = \frac{29.38}{8 + -44.6 + 7.94 + (3 \cdot 1.5)}

-1.2161A = \frac{29.38V}{8Ω + -44.6Ω + 7.94Ω + (3 \cdot 1.5Ω)}

-1.2161 = \frac{29.38}{8 + -44.6 + 7.94 + (3 \cdot 1.5)}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Electrical » Category

Power System » fx Positive Sequence Current using A-Phase EMF (LGF)

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

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

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

I 1(lg) = \frac{29.38V}{8Ω + -44.6Ω + 7.94Ω + (3 \cdot 1.5Ω)}

Next Step Prepare to Evaluate

∴

I 1(lg) = \frac{29.38}{8 + -44.6 + 7.94 + (3 \cdot 1.5)}

Next Step Evaluate

∴

I 1(lg) = -1.21605960264901A

LAST Step Rounding Answer

∴

I 1(lg) = -1.2161A

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

Variables

Positive Sequence Current LG

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

Symbol: I_1(lg)

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Positive Sequence Current LG

A Phase EMF LG

A phase EMF LG is defined as the electromagnetic force of the a-phase in open conductor fault.

Symbol: E_a(lg)

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find A Phase EMF 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 Positive Sequence Current LG

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 Positive Sequence Current using A-Phase Current (LGF)

I 1(lg) = \frac{I a(lg)}{3}

Go Positive Sequence Current for L-G-F

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

Other formulas in Current category

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

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

I 2(lg) = \frac{I a(lg)}{3}

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

Positive Sequence Current using A-Phase EMF (LGF) evaluator uses Positive Sequence Current LG = A Phase EMF LG/(Zero Sequence Impedance LG+Negative Sequence Impedance LG+Positive Sequence Impedance LG+(3*Fault Impedance LG)) to evaluate the Positive Sequence Current LG, The Positive Sequence Current using a-phase EMF (LGF) 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 Current LG is denoted by I_1(lg) symbol.

How to evaluate Positive Sequence Current using A-Phase EMF (LGF) using this online evaluator? To use this online evaluator for Positive Sequence Current using A-Phase EMF (LGF), enter A Phase EMF LG (E_a(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 Positive Sequence Current using A-Phase EMF (LGF)

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

The formula of Positive Sequence Current using A-Phase EMF (LGF) is expressed as Positive Sequence Current LG = A Phase EMF LG/(Zero Sequence Impedance LG+Negative Sequence Impedance LG+Positive Sequence Impedance LG+(3*Fault Impedance LG)). Here is an example- -1.21606 = 29.38/(8+(-44.6)+7.94+(3*1.5)).

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

With A Phase EMF LG (E_a(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 Positive Sequence Current using A-Phase EMF (LGF) using the formula - Positive Sequence Current LG = A Phase EMF LG/(Zero Sequence Impedance LG+Negative Sequence Impedance LG+Positive Sequence Impedance LG+(3*Fault Impedance LG)).

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

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

Positive Sequence Current LG=(Positive Sequence Voltage LG+Negative Sequence Voltage LG+Zero Sequence Voltage LG)/(3*Fault Impedance LG)
Positive Sequence Current LG=A-Phase Current LG/3
Positive Sequence Current LG=(Positive Sequence Voltage LG-EMF Induced in Primary Winding LG)/Positive Sequence Impedance LG

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

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

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

Positive 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 Positive Sequence Current using A-Phase EMF (LGF) can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

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

​GoPositive Sequence Current using Fault Impedance(LGF) Formula

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

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

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

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

Other Formulas to find Positive Sequence Current LG

Other formulas in Current category

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

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

Variable Name

GoPositive Sequence Current using Fault Impedance(LGF) Formula

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