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

A-Phase Voltage using Sequence Voltages(LLGF) Example

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

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

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

51.156Edit=17.6Edit+17.5Edit+16.056Edit
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HomeIcon Home » Category Engineering » Category Electrical » Category Power System » fx A-Phase Voltage using Sequence Voltages(LLGF)

A-Phase Voltage using Sequence Voltages(LLGF) Solution

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

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

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

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

Other Formulas to find A Phase Voltage

​Go A-Phase Voltage using Zero Sequence Voltage (LLGF)
Va=(3⋅V0)-(2⋅Vb)

Other formulas in Voltage and EMF category

​Go B-Phase Voltage using Fault Current (LLGF)
Vb=Zf⋅If
​Go C-Phase Voltage using Fault Current (LLGF)
Vc=If⋅Zf
​Go B-Phase Voltage using Zero Sequence Current (LLGF)
Vb=3⋅I0⋅Zf
​Go C-Phase Voltage using Zero Sequence Current (LLGF)
Vc=3⋅I0⋅Zf

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

A-Phase Voltage using Sequence Voltages(LLGF) evaluator uses A Phase Voltage = Zero Sequence Voltage+Positive Sequence Voltage+Negative Sequence Voltage to evaluate the A Phase Voltage, The A-phase Voltage using Sequence Voltages(LLGF) formula is defined as the voltage between two-component comprising a three-phase source or load. here we have taken the a-phase. A Phase Voltage is denoted by Va symbol.

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

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

What is the formula to find A-Phase Voltage using Sequence Voltages(LLGF)?
The formula of A-Phase Voltage using Sequence Voltages(LLGF) is expressed as A Phase Voltage = Zero Sequence Voltage+Positive Sequence Voltage+Negative Sequence Voltage. Here is an example- 47.156 = 17.6+17.5+16.056.
How to calculate A-Phase Voltage using Sequence Voltages(LLGF)?
With Zero Sequence Voltage (V0), Positive Sequence Voltage (V1) & Negative Sequence Voltage (V2) we can find A-Phase Voltage using Sequence Voltages(LLGF) using the formula - A Phase Voltage = Zero Sequence Voltage+Positive Sequence Voltage+Negative Sequence Voltage.
What are the other ways to Calculate A Phase Voltage?
Here are the different ways to Calculate A Phase Voltage-
  • A Phase Voltage=(3*Zero Sequence Voltage)-(2*B Phase Voltage)OpenImg
Can the A-Phase Voltage using Sequence Voltages(LLGF) be negative?
No, the A-Phase Voltage using Sequence Voltages(LLGF), measured in Electric Potential cannot be negative.
Which unit is used to measure A-Phase Voltage using Sequence Voltages(LLGF)?
A-Phase Voltage using Sequence Voltages(LLGF) 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(LLGF) can be measured.
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