Primary Leakage Reactance Formula

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Primary leakage reactance of a transformer arises from the fact that all the flux produced by one winding does not link with the other winding. Check FAQs
XL1=X'1K2
XL1 - Primary Leakage Reactance?X'1 - Reactance of Primary in Secondary?K - Transformation Ratio?

Primary Leakage Reactance Example

With values
With units
Only example

Here is how the Primary Leakage Reactance equation looks like with Values.

Here is how the Primary Leakage Reactance equation looks like with Units.

Here is how the Primary Leakage Reactance equation looks like.

0.8889Edit=1.28Edit1.2Edit2
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Primary Leakage Reactance Solution

Follow our step by step solution on how to calculate Primary Leakage Reactance?

FIRST Step Consider the formula
XL1=X'1K2
Next Step Substitute values of Variables
XL1=1.28Ω1.22
Next Step Prepare to Evaluate
XL1=1.281.22
Next Step Evaluate
XL1=0.888888888888889Ω
LAST Step Rounding Answer
XL1=0.8889Ω

Primary Leakage Reactance Formula Elements

Variables
Primary Leakage Reactance
Primary leakage reactance of a transformer arises from the fact that all the flux produced by one winding does not link with the other winding.
Symbol: XL1
Measurement: Electric ResistanceUnit: Ω
Note: Value can be positive or negative.
Reactance of Primary in Secondary
Reactance of Primary in Secondary referred to as secondary is the Reactance of Primary winding in Secondary.
Symbol: X'1
Measurement: Electric ResistanceUnit: Ω
Note: Value can be positive or negative.
Transformation Ratio
The Transformation Ratio of the transformer is used to find the relation between primary voltage and secondary voltage.
Symbol: K
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other formulas in Reactance category

​Go Equivalent Reactance of Transformer from Primary Side
X01=XL1+X'2
​Go Equivalent Reactance of Transformer from Secondary Side
X02=XL2+X'1
​Go Reactance of Primary Winding in Secondary
X'1=XL1K2
​Go Reactance of Secondary Winding in Primary
X'2=XL2K2

How to Evaluate Primary Leakage Reactance?

Primary Leakage Reactance evaluator uses Primary Leakage Reactance = Reactance of Primary in Secondary/(Transformation Ratio^2) to evaluate the Primary Leakage Reactance, The Primary Leakage Reactance formula is defined as the reactance that is in the primary winding of the transformer. its SI unit is ohms. Primary Leakage Reactance is denoted by XL1 symbol.

How to evaluate Primary Leakage Reactance using this online evaluator? To use this online evaluator for Primary Leakage Reactance, enter Reactance of Primary in Secondary (X'1) & Transformation Ratio (K) and hit the calculate button.

FAQs on Primary Leakage Reactance

What is the formula to find Primary Leakage Reactance?
The formula of Primary Leakage Reactance is expressed as Primary Leakage Reactance = Reactance of Primary in Secondary/(Transformation Ratio^2). Here is an example- 0.888889 = 1.28/(1.2^2).
How to calculate Primary Leakage Reactance?
With Reactance of Primary in Secondary (X'1) & Transformation Ratio (K) we can find Primary Leakage Reactance using the formula - Primary Leakage Reactance = Reactance of Primary in Secondary/(Transformation Ratio^2).
Can the Primary Leakage Reactance be negative?
Yes, the Primary Leakage Reactance, measured in Electric Resistance can be negative.
Which unit is used to measure Primary Leakage Reactance?
Primary Leakage Reactance is usually measured using the Ohm[Ω] for Electric Resistance. Megohm[Ω], Microhm[Ω], Volt per Ampere[Ω] are the few other units in which Primary Leakage Reactance can be measured.
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