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

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

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

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

E a(lg) = V 1(lg) + (Z 1(lg) \cdot I 1(lg))

E_a(lg) - A Phase EMF LG?V_1(lg) - Positive Sequence Voltage LG?Z_1(lg) - Positive Sequence Impedance LG?I_1(lg) - Positive Sequence Current LG?

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

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

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

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

33.3879 = 17.5 + (7.94 \cdot 2.001)

33.3879V = 17.5V + (7.94Ω \cdot 2.001A)

33.3879 = 17.5 + (7.94 \cdot 2.001)

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

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

FIRST Step Consider the formula

E a(lg) = V 1(lg) + (Z 1(lg) \cdot I 1(lg))

Next Step Substitute values of Variables

∴

E a(lg) = 17.5V + (7.94Ω \cdot 2.001A)

Next Step Prepare to Evaluate

∴

E a(lg) = 17.5 + (7.94 \cdot 2.001)

Next Step Evaluate

∴

E a(lg) = 33.38794V

LAST Step Rounding Answer

∴

E a(lg) = 33.3879V

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

Variables

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

Positive Sequence Voltage LG

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

Symbol: V_1(lg)

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Positive Sequence Voltage 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

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

Other Formulas to find A Phase EMF LG

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

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

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

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

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

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

Other formulas in Voltage and EMF category

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

V 0(lg) = (Z f(lg) \cdot I a(lg)) - (V 2(lg)) - (V 1(lg))

Go A-Phase Voltage(LGF)

V a(lg) = Z f(lg) \cdot I a(lg)

Go Positive Sequence Voltage for L-G-F

V 1(lg) = E 1(lg) - (Z 1(lg) \cdot I 1(lg))

Go Zero Sequence Voltage for LGF

V 0(lg) = - Z 0(lg) \cdot I 0(lg)

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

A-Phase EMF using Positive Sequence Voltage (LGF) evaluator uses A Phase EMF LG = Positive Sequence Voltage LG+(Positive Sequence Impedance LG*Positive Sequence Current LG) to evaluate the A Phase EMF LG, The A-phase EMF using Positive Sequence Voltage (LGF) formula is defined as the electromotive force of the A-phase current flowing line. A Phase EMF LG is denoted by E_a(lg) symbol.

How to evaluate A-Phase EMF using Positive Sequence Voltage (LGF) using this online evaluator? To use this online evaluator for A-Phase EMF using Positive Sequence Voltage (LGF), enter Positive Sequence Voltage LG (V_1(lg)), Positive Sequence Impedance LG (Z_1(lg)) & Positive Sequence Current LG (I_1(lg)) and hit the calculate button.

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

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

The formula of A-Phase EMF using Positive Sequence Voltage (LGF) is expressed as A Phase EMF LG = Positive Sequence Voltage LG+(Positive Sequence Impedance LG*Positive Sequence Current LG). Here is an example- 33.38794 = 17.5+(7.94*2.001).

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

With Positive Sequence Voltage LG (V_1(lg)), Positive Sequence Impedance LG (Z_1(lg)) & Positive Sequence Current LG (I_1(lg)) we can find A-Phase EMF using Positive Sequence Voltage (LGF) using the formula - A Phase EMF LG = Positive Sequence Voltage LG+(Positive Sequence Impedance LG*Positive Sequence Current LG).

What are the other ways to Calculate A Phase EMF LG?

Here are the different ways to Calculate A Phase EMF LG-

A Phase EMF LG=Zero Sequence Current LG*((3*Fault Impedance LG)+Zero Sequence Impedance LG+Positive Sequence Impedance LG+Negative Sequence Impedance LG)
A Phase EMF LG=Positive Sequence Current LG*((3*Fault Impedance LG)+Zero Sequence Impedance LG+Positive Sequence Impedance LG+Negative Sequence Impedance LG)
A Phase EMF LG=Negative Sequence Current LG*((3*Fault Impedance LG)+Zero Sequence Impedance LG+Positive Sequence Impedance LG+Negative Sequence Impedance LG)

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

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

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

A-Phase EMF using Positive Sequence Voltage (LGF) is usually measured using the Volt[V] for Electric Potential. Millivolt[V], Microvolt[V], Nanovolt[V] are the few other units in which A-Phase EMF using Positive Sequence Voltage (LGF) can be measured.

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