A-Phase Voltage using Zero Sequence Voltage (LLGF) Solution

STEP 0: Pre-Calculation Summary
Formula Used
A Phase Voltage = (3*Zero Sequence Voltage)-(2*B Phase Voltage)
Va = (3*V0)-(2*Vb)
This formula uses 3 Variables
Variables Used
A Phase Voltage - (Measured in Volt) - A phase voltage is the voltage of a-phase in open conductor fault.
Zero Sequence Voltage - (Measured in Volt) - 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.
B Phase Voltage - (Measured in Volt) - B phase Voltage is defined as the voltage of b-phase.
STEP 1: Convert Input(s) to Base Unit
Zero Sequence Voltage: 17.6 Volt --> 17.6 Volt No Conversion Required
B Phase Voltage: 16.5 Volt --> 16.5 Volt No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Va = (3*V0)-(2*Vb) --> (3*17.6)-(2*16.5)
Evaluating ... ...
Va = 19.8
STEP 3: Convert Result to Output's Unit
19.8 Volt --> No Conversion Required
FINAL ANSWER
19.8 Volt <-- A Phase Voltage
(Calculation completed in 00.004 seconds)

Credits

Created by Urvi Rathod
Vishwakarma Government Engineering College (VGEC), Ahmedabad
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15 Voltage & EMF Calculators

A-Phase EMF using Positive Sequence Voltage (LLGF)
Go A Phase EMF = Positive Sequence Voltage+(Positive Sequence Current*Positive Sequence Impedance)
Positive Sequence Voltage using A-Phase EMF(LLGF)
Go Positive Sequence Voltage = A Phase EMF-Positive Sequence Impedance*Positive Sequence Current
Positive Sequence Voltage using Fault Impedance (LLGF)
Go Positive Sequence Voltage = Zero Sequence Voltage-(3*Fault Impedance*Zero Sequence Current)
Zero Sequence Voltage using Fault Impedance (LLGF)
Go Zero Sequence Voltage = Positive Sequence Voltage+(3*Fault Impedance*Zero Sequence Current)
A-Phase Voltage using Sequence Voltages(LLGF)
Go A Phase Voltage = Zero Sequence Voltage+Positive Sequence Voltage+Negative Sequence Voltage
Negative Sequence Voltage using Negative Sequence Current (LLGF)
Go Negative Sequence Voltage = (-1)*Negative Sequence Current*Negative Sequence Impedance
Zero Sequence Voltage using B-Phase Voltage (LLGF)
Go Zero Sequence Voltage = B Phase Voltage+Positive Sequence Voltage
B-Phase Voltage using Zero-Sequence Voltage (LLGF)
Go B Phase Voltage = Zero Sequence Voltage-Positive Sequence Voltage
Zero Sequence Voltage using A-Phase Voltage (LLGF)
Go Zero Sequence Voltage = (A Phase Voltage+(2*B Phase Voltage))/3
A-Phase Voltage using Zero Sequence Voltage (LLGF)
Go A Phase Voltage = (3*Zero Sequence Voltage)-(2*B Phase Voltage)
B-Phase Voltage using A-Phase Voltage(LLGF)
Go B Phase Voltage = (3*Zero Sequence Voltage-A Phase Voltage)/2
B-Phase Voltage using Zero Sequence Current (LLGF)
Go B Phase Voltage = 3*Zero Sequence Current*Fault Impedance
C-Phase Voltage using Zero Sequence Current (LLGF)
Go C Phase Voltage = 3*Zero Sequence Current*Fault Impedance
B-Phase Voltage using Fault Current (LLGF)
Go B Phase Voltage = Fault Impedance*Fault Current
C-Phase Voltage using Fault Current (LLGF)
Go C Phase Voltage = Fault Current*Fault Impedance

A-Phase Voltage using Zero Sequence Voltage (LLGF) Formula

A Phase Voltage = (3*Zero Sequence Voltage)-(2*B Phase Voltage)
Va = (3*V0)-(2*Vb)

What are the positive and negative Sequence Components?

The positive sequence consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation. The negative sequence consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ACB rotation.

What does three phase voltage mean?

Three-phase power can be defined as the common method of alternating current power generation, transmission, and distribution. It is a type of polyphase system and is the most common method used by electric grids worldwide to transfer power.

How to Calculate A-Phase Voltage using Zero Sequence Voltage (LLGF)?

A-Phase Voltage using Zero Sequence Voltage (LLGF) calculator uses A Phase Voltage = (3*Zero Sequence Voltage)-(2*B Phase Voltage) to calculate the A Phase Voltage, The a-phase voltage using zero Sequence voltage (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 calculate A-Phase Voltage using Zero Sequence Voltage (LLGF) using this online calculator? To use this online calculator for A-Phase Voltage using Zero Sequence Voltage (LLGF), enter Zero Sequence Voltage (V0) & B Phase Voltage (Vb) and hit the calculate button. Here is how the A-Phase Voltage using Zero Sequence Voltage (LLGF) calculation can be explained with given input values -> 28.4 = (3*17.6)-(2*16.5).

FAQ

What is A-Phase Voltage using Zero Sequence Voltage (LLGF)?
The a-phase voltage using zero Sequence voltage (LLGF) formula is defined as the voltage between two-component comprising a three-phase source or load. here we have taken the a-phase and is represented as Va = (3*V0)-(2*Vb) or A Phase Voltage = (3*Zero Sequence Voltage)-(2*B Phase 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 & B phase Voltage is defined as the voltage of b-phase.
How to calculate A-Phase Voltage using Zero Sequence Voltage (LLGF)?
The a-phase voltage using zero Sequence voltage (LLGF) formula is defined as the voltage between two-component comprising a three-phase source or load. here we have taken the a-phase is calculated using A Phase Voltage = (3*Zero Sequence Voltage)-(2*B Phase Voltage). To calculate A-Phase Voltage using Zero Sequence Voltage (LLGF), you need Zero Sequence Voltage (V0) & B Phase Voltage (Vb). With our tool, you need to enter the respective value for Zero Sequence Voltage & B Phase Voltage and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate A Phase Voltage?
In this formula, A Phase Voltage uses Zero Sequence Voltage & B Phase Voltage. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • A Phase Voltage = Zero Sequence Voltage+Positive Sequence Voltage+Negative Sequence Voltage
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