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B-Phase Current using Fault Impedance (LLF) Formula

GoB-Phase Current (LLF) Formula

GoB-Phase Current using A-Phase EMF(LLF) Formula

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B phase Current is defined as the current flowing through the b-phase in open conductor fault. Check FAQs

I b = \frac{V b - V c}{Z f}

I_b - B Phase Current?V_b - B Phase Voltage?V_c - C Phase Voltage?Z_f - Fault Impedance?

B-Phase Current using Fault Impedance (LLF) Example

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Here is how the B-Phase Current using Fault Impedance (LLF) equation looks like with Values.

Here is how the B-Phase Current using Fault Impedance (LLF) equation looks like with Units.

Here is how the B-Phase Current using Fault Impedance (LLF) equation looks like.

-0.4667 = \frac{16.5 - 17.2}{1.5}

-0.4667A = \frac{16.5V - 17.2V}{1.5Ω}

-0.4667 = \frac{16.5 - 17.2}{1.5}

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B-Phase Current using Fault Impedance (LLF) Solution

Follow our step by step solution on how to calculate B-Phase Current using Fault Impedance (LLF)?

FIRST Step Consider the formula

I b = \frac{V b - V c}{Z f}

Next Step Substitute values of Variables

∴

I b = \frac{16.5V - 17.2V}{1.5Ω}

Next Step Prepare to Evaluate

∴

I b = \frac{16.5 - 17.2}{1.5}

Next Step Evaluate

∴

I b = -0.466666666666666A

LAST Step Rounding Answer

∴

I b = -0.4667A

B-Phase Current using Fault Impedance (LLF) Formula Elements

Variables

B Phase Current

B phase Current is defined as the current flowing through the b-phase in open conductor fault.

Symbol: I_b

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find B Phase Current

B Phase Voltage

B phase Voltage is defined as the voltage of b-phase.

Symbol: V_b

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find B Phase Voltage

C Phase Voltage

C phase Voltage is defined as the voltage of c-phase.

Symbol: V_c

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find C Phase Voltage

Fault Impedance

Fault Impedance is a measure of the resistance and reactance in an electrical circuit that is used to calculate the fault current that flows through the circuit in the event of a fault.

Symbol: Z_f

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Fault Impedance

Other Formulas to find B Phase Current

Go B-Phase Current (LLF)

I b = (- 1) \cdot I c

Go B-Phase Current using A-Phase EMF(LLF)

I b = \frac{\sqrt{3} \cdot E a}{Z 1 + Z 2}

Other formulas in Current category

Go C-Phase Current(LLF)

I c = (- 1) \cdot I b

Go Positive Sequence Current (LLF)

I 1 = (- 1) \cdot I 2

Go Negative Sequence Current(LLF)

I 2 = (- 1) \cdot I 1

Go Positive Sequence Current using Fault Impedance(LLF)

I 1 = \frac{V 1 - V 2}{Z f}

How to Evaluate B-Phase Current using Fault Impedance (LLF)?

B-Phase Current using Fault Impedance (LLF) evaluator uses B Phase Current = (B Phase Voltage-C Phase Voltage)/Fault Impedance to evaluate the B Phase Current, The b-phase Current using Fault Impedance (LLF) formula is defined as the current through any one component comprising a three-phase source or load. Here we have taken the b-phase. B Phase Current is denoted by I_b symbol.

How to evaluate B-Phase Current using Fault Impedance (LLF) using this online evaluator? To use this online evaluator for B-Phase Current using Fault Impedance (LLF), enter B Phase Voltage (V_b), C Phase Voltage (V_c) & Fault Impedance (Z_f) and hit the calculate button.

FAQs on B-Phase Current using Fault Impedance (LLF)

What is the formula to find B-Phase Current using Fault Impedance (LLF)?

The formula of B-Phase Current using Fault Impedance (LLF) is expressed as B Phase Current = (B Phase Voltage-C Phase Voltage)/Fault Impedance. Here is an example- 0.6 = (16.5-17.2)/1.5.

How to calculate B-Phase Current using Fault Impedance (LLF)?

With B Phase Voltage (V_b), C Phase Voltage (V_c) & Fault Impedance (Z_f) we can find B-Phase Current using Fault Impedance (LLF) using the formula - B Phase Current = (B Phase Voltage-C Phase Voltage)/Fault Impedance.

What are the other ways to Calculate B Phase Current?

Here are the different ways to Calculate B Phase Current-

B Phase Current=(-1)*C Phase Current
B Phase Current=(sqrt(3)*A Phase EMF)/(Positive Sequence Impedance+Negative Sequence Impedance)

Can the B-Phase Current using Fault Impedance (LLF) be negative?

Yes, the B-Phase Current using Fault Impedance (LLF), measured in Electric Current can be negative.

Which unit is used to measure B-Phase Current using Fault Impedance (LLF)?

B-Phase Current using Fault Impedance (LLF) is usually measured using the Ampere[A] for Electric Current. Milliampere[A], Microampere[A], Centiampere[A] are the few other units in which B-Phase Current using Fault Impedance (LLF) can be measured.

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B-Phase Current using Fault Impedance (LLF) Formula

​GoB-Phase Current (LLF) Formula

​GoB-Phase Current using A-Phase EMF(LLF) Formula

B-Phase Current using Fault Impedance (LLF) Example

B-Phase Current using Fault Impedance (LLF) Solution

B-Phase Current using Fault Impedance (LLF) Formula Elements

Other Formulas to find B Phase Current

Other formulas in Current category

How to Evaluate B-Phase Current using Fault Impedance (LLF)?

FAQs on B-Phase Current using Fault Impedance (LLF)

Variable Name

GoB-Phase Current (LLF) Formula

GoB-Phase Current using A-Phase EMF(LLF) Formula