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 and Sequence Impedances(LLGF) Formula

GoPositive Sequence Current using Positive Sequence Voltage (LLGF) Formula

Fx Copy

LaTeX Copy

Positive Sequence Current 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 = \frac{E a}{Z 1 + \frac{Z 2 \cdot (Z 0 + 3 \cdot Z f)}{Z 0 + Z 2 + 3 \cdot Z f}}

I₁ - Positive Sequence Current?E_a - A Phase EMF?Z₁ - Positive Sequence Impedance?Z₂ - Negative Sequence Impedance?Z₀ - Zero Sequence Impedance?Z_f - Fault Impedance?

Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) Example

With values

With units

Only example

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

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

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

1.1609 = \frac{29.38}{7.94 + \frac{-44.6 \cdot (8 + 3 \cdot 1.5)}{8 + -44.6 + 3 \cdot 1.5}}

1.1609A = \frac{29.38V}{7.94Ω + \frac{-44.6Ω \cdot (8Ω + 3 \cdot 1.5Ω)}{8Ω + -44.6Ω + 3 \cdot 1.5Ω}}

1.1609 = \frac{29.38}{7.94 + \frac{-44.6 \cdot (8 + 3 \cdot 1.5)}{8 + -44.6 + 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 and Sequence Impedances(LLGF)

Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) Solution

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

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

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

Next Step Prepare to Evaluate

∴

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

Next Step Evaluate

∴

I 1 = 1.16091603128608A

LAST Step Rounding Answer

∴

I 1 = 1.1609A

Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) Formula Elements

Variables

Positive Sequence Current

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

Symbol: I₁

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Positive Sequence Current

A Phase EMF

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

Symbol: E_a

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find A Phase EMF

Positive Sequence Impedance

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

Symbol: Z₁

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Positive Sequence Impedance

Negative Sequence Impedance

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

Symbol: Z₂

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Negative Sequence Impedance

Zero Sequence Impedance

Zero Sequence Impedance 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

Measurement: Electric ResistanceUnit: Ω

Note: Value can be positive or negative.

Formulas to find Zero Sequence Impedance

Fault Impedance

Fault Impedance 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

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Fault Impedance

Other Formulas to find Positive Sequence Current

Go Positive Sequence Current using Positive Sequence Voltage (LLGF)

I 1 = \frac{E a - V 1}{Z 1}

Other formulas in Current category

Go B-Phase Current (LLGF)

I b = I f - I c

Go C-Phase Current (LLGF)

I c = I f - I b

Go Fault Current (LLGF)

I f = I b + I c

Go Fault Current using B-Phase Voltage (LLGF)

I f = \frac{V b}{Z f}

How to Evaluate Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF)?

Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) evaluator uses Positive Sequence Current = A Phase EMF/(Positive Sequence Impedance+(Negative Sequence Impedance*(Zero Sequence Impedance+3*Fault Impedance))/(Zero Sequence Impedance+Negative Sequence Impedance+3*Fault Impedance)) to evaluate the Positive Sequence Current, The Positive Sequence Current using A-phase EMF and Sequence Impedances(LLGF) formula is defined as a concept in electrical engineering that refers to the flow of electric current in a three-phase power system where all three phases have the same magnitude and are equally spaced in phase angle. Positive Sequence Current is denoted by I₁ symbol.

How to evaluate Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) using this online evaluator? To use this online evaluator for Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF), enter A Phase EMF (E_a), Positive Sequence Impedance (Z₁), Negative Sequence Impedance (Z₂), Zero Sequence Impedance (Z₀) & Fault Impedance (Z_f) and hit the calculate button.

FAQs on Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF)

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

The formula of Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) is expressed as Positive Sequence Current = A Phase EMF/(Positive Sequence Impedance+(Negative Sequence Impedance*(Zero Sequence Impedance+3*Fault Impedance))/(Zero Sequence Impedance+Negative Sequence Impedance+3*Fault Impedance)). Here is an example- 1.160916 = 29.38/(7.94+((-44.6)*(8+3*1.5))/(8+(-44.6)+3*1.5)).

How to calculate Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF)?

With A Phase EMF (E_a), Positive Sequence Impedance (Z₁), Negative Sequence Impedance (Z₂), Zero Sequence Impedance (Z₀) & Fault Impedance (Z_f) we can find Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) using the formula - Positive Sequence Current = A Phase EMF/(Positive Sequence Impedance+(Negative Sequence Impedance*(Zero Sequence Impedance+3*Fault Impedance))/(Zero Sequence Impedance+Negative Sequence Impedance+3*Fault Impedance)).

What are the other ways to Calculate Positive Sequence Current?

Here are the different ways to Calculate Positive Sequence Current-

Positive Sequence Current=(A Phase EMF-Positive Sequence Voltage)/Positive Sequence Impedance

Can the Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) be negative?

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

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

Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) 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 and Sequence Impedances(LLGF) can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) Formula

​GoPositive Sequence Current using Positive Sequence Voltage (LLGF) Formula

Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) Example

Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) Solution

Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF) Formula Elements

Other Formulas to find Positive Sequence Current

Other formulas in Current category

How to Evaluate Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF)?

FAQs on Positive Sequence Current using A-Phase EMF and Sequence Impedances(LLGF)

Variable Name

GoPositive Sequence Current using Positive Sequence Voltage (LLGF) Formula