A-Phase EMF using Positive Sequence Current and Voltage(LLF) Calculator

✖Positive Sequence Voltage consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.ⓘ Positive Sequence Voltage [V₁]			+10% -10%
✖Positive Sequence Impedance consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.ⓘ Positive Sequence Impedance [Z₁]			+10% -10%
✖Positive Sequence Current consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.ⓘ Positive Sequence Current [I₁]			+10% -10%

✖A phase EMF is defined as the electromagnetic force of the a-phase in open conductor fault.ⓘ A-Phase EMF using Positive Sequence Current and Voltage(LLF) [E_a]

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Formula

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A-Phase EMF using Positive Sequence Current and Voltage(LLF)

Formula

`"E"_{"a"} = "V"_{"1"}+"Z"_{"1"}*"I"_{"1"}`

Example

`"33.38794V"="17.5V"+"7.94Ω"*"2.001A"`

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A-Phase EMF using Positive Sequence Current and Voltage(LLF) Solution

STEP 0: Pre-Calculation Summary

Formula Used

A Phase EMF = Positive Sequence Voltage+Positive Sequence Impedance*Positive Sequence Current
E_a = V₁+Z₁*I₁
This formula uses 4 Variables

Variables Used

A Phase EMF - (Measured in Volt) - A phase EMF is defined as the electromagnetic force of the a-phase in open conductor fault.
Positive Sequence Voltage - (Measured in Volt) - Positive Sequence Voltage consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.
Positive Sequence Impedance - (Measured in Ohm) - Positive Sequence Impedance consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.
Positive Sequence Current - (Measured in Ampere) - Positive Sequence Current consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.

STEP 1: Convert Input(s) to Base Unit

Positive Sequence Voltage: 17.5 Volt --> 17.5 Volt No Conversion Required
Positive Sequence Impedance: 7.94 Ohm --> 7.94 Ohm No Conversion Required
Positive Sequence Current: 2.001 Ampere --> 2.001 Ampere No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

E_a = V₁+Z₁*I₁ --> 17.5+7.94*2.001

Evaluating ... ...

E_a = 33.38794

STEP 3: Convert Result to Output's Unit

33.38794 Volt --> No Conversion Required

FINAL ANSWER

33.38794 Volt <-- A Phase EMF

(Calculation completed in 00.004 seconds)

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Indian Institute of Technology,Roorlee (IITR), Roorkee

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Chandigarh University (CU), Punjab

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< 13 Voltage & EMF Calculators

Positive Sequence Voltage using A-Phase EMF and Sequence Impedances(LLF)

Go Positive Sequence Voltage = (A Phase EMF*Negative Sequence Impedance)/(Positive Sequence Impedance+Negative Sequence Impedance)

Negative Sequence Voltage using A-Phase EMF and Sequence Impedances(LLF)

Go Negative Sequence Voltage = (A Phase EMF*Negative Sequence Impedance)/(Positive Sequence Impedance+Negative Sequence Impedance)

A-Phase EMF using Positive Sequence Voltage(LLF)

Go A Phase EMF = (Positive Sequence Voltage*(Positive Sequence Impedance+Negative Sequence Impedance))/Negative Sequence Impedance

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

Go A Phase EMF = Positive Sequence Current*(Positive Sequence Impedance+Negative Sequence Impedance+Fault Impedance)

A-Phase EMF using Fault Current(LLF)

Go A Phase EMF = (Fault Current*(Positive Sequence Impedance+Negative Sequence Impedance))/sqrt(3)

Positive Sequence Voltage (LLF)

Go Positive Sequence Voltage = (Fault Impedance*Positive Sequence Current)+Negative Sequence Voltage

Negative Sequence Voltage (LLF)

Go Negative Sequence Voltage = Positive Sequence Voltage-(Fault Impedance*Positive Sequence Current)

Positive Sequence Voltage using A-Phase EMF and Positive Sequence Current(LLF)

Go Positive Sequence Voltage = A Phase EMF-Positive Sequence Impedance*Positive Sequence Current

A-Phase EMF using Positive Sequence Current and Voltage(LLF)

Go A Phase EMF = Positive Sequence Voltage+Positive Sequence Impedance*Positive Sequence Current

C-Phase Voltage using C-Phase Current (LLF)

Go C Phase Voltage = B Phase Voltage+(Fault Impedance*C Phase Current)

B-Phase Voltage using C-Phase Current (LLF)

Go B Phase Voltage = C Phase Voltage-(Fault Impedance*C Phase Current)

B-Phase Voltage (LLF)

Go B Phase Voltage = (Fault Impedance*B Phase Current)+C Phase Voltage

C-Phase Voltage (LLF)

Go C Phase Voltage = B Phase Voltage-(Fault Impedance*B Phase Current)

A-Phase EMF using Positive Sequence Current and Voltage(LLF) Formula

A Phase EMF = Positive Sequence Voltage+Positive Sequence Impedance*Positive Sequence Current
E_a = V₁+Z₁*I₁

What is a line to line fault?

A line-to-line fault, also known as a three-phase fault, is a type of electrical fault that occurs in a three-phase power system. This type of fault occurs when a failure occurs between two phases of the power system, causing a current to flow from one phase to the other.

How to Calculate A-Phase EMF using Positive Sequence Current and Voltage(LLF)?

A-Phase EMF using Positive Sequence Current and Voltage(LLF) calculator uses A Phase EMF = Positive Sequence Voltage+Positive Sequence Impedance*Positive Sequence Current to calculate the A Phase EMF, The A-phase EMF using Positive Sequence Current and Voltage(LLF) formula is defined as the electrical potential difference that is present in one phase of a three-phase electrical power system during a fault condition. A Phase EMF is denoted by E_a symbol.

How to calculate A-Phase EMF using Positive Sequence Current and Voltage(LLF) using this online calculator? To use this online calculator for A-Phase EMF using Positive Sequence Current and Voltage(LLF), enter Positive Sequence Voltage (V₁), Positive Sequence Impedance (Z₁) & Positive Sequence Current (I₁) and hit the calculate button. Here is how the A-Phase EMF using Positive Sequence Current and Voltage(LLF) calculation can be explained with given input values -> 29.38794 = 17.5+7.94*2.001.

FAQ

What is A-Phase EMF using Positive Sequence Current and Voltage(LLF)?

The A-phase EMF using Positive Sequence Current and Voltage(LLF) formula is defined as the electrical potential difference that is present in one phase of a three-phase electrical power system during a fault condition and is represented as E_a = V₁+Z₁*I₁ or A Phase EMF = Positive Sequence Voltage+Positive Sequence Impedance*Positive Sequence Current. Positive Sequence Voltage consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation, Positive Sequence Impedance consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation & Positive Sequence Current consists of balanced three-phase voltage and current phasors which are exactly at 120 degrees apart rotating counterclockwise in ABC rotation.

How to calculate A-Phase EMF using Positive Sequence Current and Voltage(LLF)?

The A-phase EMF using Positive Sequence Current and Voltage(LLF) formula is defined as the electrical potential difference that is present in one phase of a three-phase electrical power system during a fault condition is calculated using A Phase EMF = Positive Sequence Voltage+Positive Sequence Impedance*Positive Sequence Current. To calculate A-Phase EMF using Positive Sequence Current and Voltage(LLF), you need Positive Sequence Voltage (V₁), Positive Sequence Impedance (Z₁) & Positive Sequence Current (I₁). With our tool, you need to enter the respective value for Positive Sequence Voltage, Positive Sequence Impedance & Positive Sequence Current 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 EMF?

In this formula, A Phase EMF uses Positive Sequence Voltage, Positive Sequence Impedance & Positive Sequence Current. We can use 3 other way(s) to calculate the same, which is/are as follows -

A Phase EMF = Positive Sequence Current*(Positive Sequence Impedance+Negative Sequence Impedance+Fault Impedance)
A Phase EMF = (Positive Sequence Voltage*(Positive Sequence Impedance+Negative Sequence Impedance))/Negative Sequence Impedance
A Phase EMF = (Fault Current*(Positive Sequence Impedance+Negative Sequence Impedance))/sqrt(3)

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