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A phase voltage LG is the voltage of a-phase in open conductor fault. Check FAQs
Va(lg)=V0(lg)+V1(lg)+V2(lg)
Va(lg) - A Phase Voltage LG?V0(lg) - Zero Sequence Voltage LG?V1(lg) - Positive Sequence Voltage LG?V2(lg) - Negative Sequence Voltage LG?

A-Phase Voltage using Sequence Voltages(LGF) Example

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

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

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

51.156Edit=17.6Edit+17.5Edit+16.056Edit
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A-Phase Voltage using Sequence Voltages(LGF) Solution

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

FIRST Step Consider the formula
Va(lg)=V0(lg)+V1(lg)+V2(lg)
Next Step Substitute values of Variables
∴ Va(lg)=17.6V+17.5V+16.056V
Next Step Prepare to Evaluate
∴ Va(lg)=17.6+17.5+16.056
LAST Step Evaluate
∴Va(lg)=51.156V

A-Phase Voltage using Sequence Voltages(LGF) Formula Elements

Variables
A Phase Voltage LG
A phase voltage LG is the voltage of a-phase in open conductor fault.
Symbol: Va(lg)
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.
Formulas to find A Phase Voltage LGOpen Variable
Zero Sequence Voltage LG
Zero Sequence Voltage LG consists of a balanced three-phase voltage and current, phasors of which all have the same phase angles and rotate counterclockwise together.
Symbol: V0(lg)
Measurement: Electric PotentialUnit: V
Note: Value can be positive or negative.
Formulas to find Zero Sequence Voltage LGOpen Variable
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: V1(lg)
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.
Formulas to find Positive Sequence Voltage LGOpen Variable
Negative Sequence Voltage LG
Negative Sequence Voltage LG consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.
Symbol: V2(lg)
Measurement: Electric PotentialUnit: V
Note: Value can be positive or negative.
Formulas to find Negative Sequence Voltage LGOpen Variable

Other Formulas to find A Phase Voltage LG

​Go A-Phase Voltage(LGF)
Va(lg)=Zf(lg)⋅Ia(lg)

Other formulas in Voltage and EMF category

​Go Zero Sequence Voltage using A-Phase Current (LGF)
V0(lg)=(Zf(lg)⋅Ia(lg))-(V2(lg))-(V1(lg))
​Go Positive Sequence Voltage for L-G-F
V1(lg)=E1(lg)-(Z1(lg)⋅I1(lg))
​Go Zero Sequence Voltage for LGF
V0(lg)=-Z0(lg)⋅I0(lg)
​Go A-Phase EMF using Positive Sequence Voltage (LGF)
Ea(lg)=V1(lg)+(Z1(lg)⋅I1(lg))

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

A-Phase Voltage using Sequence Voltages(LGF) evaluator uses A Phase Voltage LG = Zero Sequence Voltage LG+Positive Sequence Voltage LG+Negative Sequence Voltage LG to evaluate the A Phase Voltage LG, The A-phase Voltage using Sequence Voltages(LGF) formula is defined as the voltage measured between any line and neutral. Here we have taken the a-phase. A Phase Voltage LG is denoted by Va(lg) symbol.

How to evaluate A-Phase Voltage using Sequence Voltages(LGF) using this online evaluator? To use this online evaluator for A-Phase Voltage using Sequence Voltages(LGF), enter Zero Sequence Voltage LG (V0(lg)), Positive Sequence Voltage LG (V1(lg)) & Negative Sequence Voltage LG (V2(lg)) and hit the calculate button.

FAQs on A-Phase Voltage using Sequence Voltages(LGF)

What is the formula to find A-Phase Voltage using Sequence Voltages(LGF)?
The formula of A-Phase Voltage using Sequence Voltages(LGF) is expressed as A Phase Voltage LG = Zero Sequence Voltage LG+Positive Sequence Voltage LG+Negative Sequence Voltage LG. Here is an example- 51.156 = 17.6+17.5+16.056.
How to calculate A-Phase Voltage using Sequence Voltages(LGF)?
With Zero Sequence Voltage LG (V0(lg)), Positive Sequence Voltage LG (V1(lg)) & Negative Sequence Voltage LG (V2(lg)) we can find A-Phase Voltage using Sequence Voltages(LGF) using the formula - A Phase Voltage LG = Zero Sequence Voltage LG+Positive Sequence Voltage LG+Negative Sequence Voltage LG.
What are the other ways to Calculate A Phase Voltage LG?
Here are the different ways to Calculate A Phase Voltage LG-
  • A Phase Voltage LG=Fault Impedance LG*A-Phase Current LGOpenImg
Can the A-Phase Voltage using Sequence Voltages(LGF) be negative?
No, the A-Phase Voltage using Sequence Voltages(LGF), measured in Electric Potential cannot be negative.
Which unit is used to measure A-Phase Voltage using Sequence Voltages(LGF)?
A-Phase Voltage using Sequence Voltages(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 Voltage using Sequence Voltages(LGF) can be measured.
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