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Base Current Formula

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Base Current (PU) in the per unit system is the rated current of the machine in the power system. Check FAQs

I pu(b) = \frac{P b}{V base}

I_pu(b) - Base Current (PU)?P_b - Base Power?V_base - Base Voltage?

Base Current Example

With values

With units

Only example

Here is how the Base Current equation looks like with Values.

Here is how the Base Current equation looks like with Units.

Here is how the Base Current equation looks like.

40 = \frac{10000}{250}

40A = \frac{10000VA}{250V}

40 = \frac{10000}{250}

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Base Current Solution

Follow our step by step solution on how to calculate Base Current?

FIRST Step Consider the formula

I pu(b) = \frac{P b}{V base}

Next Step Substitute values of Variables

∴

I pu(b) = \frac{10000VA}{250V}

Next Step Convert Units

∴

I pu(b) = \frac{10000W}{250V}

Next Step Prepare to Evaluate

∴

I pu(b) = \frac{10000}{250}

LAST Step Evaluate

∴

I pu(b) = 40A

Base Current Formula Elements

Variables

Base Current (PU)

Base Current (PU) in the per unit system is the rated current of the machine in the power system.

Symbol: I_pu(b)

Measurement: Electric CurrentUnit: A

Note: Value should be greater than 0.

Formulas to find Base Current (PU)

Base Power

Base power is the product of base voltage & base current. It is denoted as P_b .

Symbol: P_b

Measurement: PowerUnit: VA

Note: Value should be greater than 0.

Formulas to find Base Power

Base Voltage

Base Voltage is chosen as the nominal rated voltage of the system.

Symbol: V_base

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Base Voltage

Other formulas in Line Performance Characteristics category

Go Complex Power given Current

S = I^{2} \cdot Z

Go Skin Depth in Conductor

δ = \sqrt{\frac{R s}{f \cdot μ r \cdot 4 \cdot π \cdot 10^{- 7}}}

Go Base Impedance given Base Current

Z base = \frac{V base}{I pu(b)}

Go Base Power

P b = V base \cdot I b

How to Evaluate Base Current?

Base Current evaluator uses Base Current (PU) = Base Power/Base Voltage to evaluate the Base Current (PU), Base Current is the ratio of the base power to the base voltage of system. It is denoted as I_base. Base Current (PU) is denoted by I_pu(b) symbol.

How to evaluate Base Current using this online evaluator? To use this online evaluator for Base Current, enter Base Power (P_b) & Base Voltage (V_base) and hit the calculate button.

FAQs on Base Current

What is the formula to find Base Current?

The formula of Base Current is expressed as Base Current (PU) = Base Power/Base Voltage. Here is an example- 50 = 10000/250.

How to calculate Base Current?

With Base Power (P_b) & Base Voltage (V_base) we can find Base Current using the formula - Base Current (PU) = Base Power/Base Voltage.

Can the Base Current be negative?

No, the Base Current, measured in Electric Current cannot be negative.

Which unit is used to measure Base Current?

Base Current is usually measured using the Ampere[A] for Electric Current. Milliampere[A], Microampere[A], Centiampere[A] are the few other units in which Base Current can be measured.

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Base Current Formula

Base Current Example

Base Current Solution

Base Current Formula Elements

Other formulas in Line Performance Characteristics category

How to Evaluate Base Current?

FAQs on Base Current

Variable Name