What is the relation between leakage flux and leakage reactance?

A small portion of flux will link either winding but not both. This portion of flux is called leakage flux. Due to this leakage flux in transformer, there will be a self-reactance in the concerned winding. This self-reactance of transformer is alternatively known as leakage reactance of transformer.

Why are the leakage flux represented by an inductive reactance?

Magnetic leakage This leakage flux does not link with both the windings, and hence it does not contribute to transfer of energy from primary winding to secondary winding. Hence, leakage flux produces an effect equivalent to an inductive coil in series with each winding. And due to this there will be leakage reactance.

What is leakage reactance of a machine?

Leakage reactance is usually the most important element of a power system transformer due to power factor, voltage drop, reactive power consumption and fault current considerations. Leakage inductance depends on the geometry of the core and the windings.

What is the relation of the secondary winding leakage reactance and secondary current impedance?

Clarification: The secondary winding leakage reactance is directly proportional to the secondary circuit impedance. In secondary winding the leakage reactance is reduced and in turn the secondary circuit impedance is reduced.

How can the value of magnetising reactance be determined?

The magnetizing reactance of an induction machine x m is calculated by the expression given in ( 2.39). In this chapter, the magnetic circuit is calculated by the use of an electric equivalent circuit, the elements of which represent the magnetizing reactance values of magnetic circuit regions.

What is magnetizing reactance?

In circuit theory terms, the magnetising reactance is simply the reactance due to the self-inductance of the primary of the transformer. resembles a transformer with two air-gaps in its magnetic circuit.

What affects leakage current?

Summary. Leakage current will flow when it is not desired to do so, either due to poor design, failure grounding or insulation in equipment, imperfections in component materials and more. The magnitude of the current can be reduced by proper design and observing of the best standards and practices.

What is leakage flux?

Leakage Flux And Fringing Leakage flux is defined as the magnetic flux which does not follow the particularly intended path in a magnetic circuit. Taking an example of solenoid you can explain the leakage flux and the fringing both. When a current is passed through a solenoid, magnetic flux is produced by it.

What is the leakage coefficient of a magnetic circuit?

The ratio of the total flux produced to the useful flux set up in the air gap of the magnetic circuit is called a leakage coefficient or leakage factor.

What is the leakage reactance of an inductor?

Then leakage reactance is the impedance/resistance offered by the leakege Inductor . Leakage inductor, its a hypothetical electrical component(not actual, but somewhat to take the role of a inductor) used in many cases where there is EMF production due to change of flux ,for e.g., Transformer, Induction motor..etc.

What is the leakage reactance of a transformer?

As explained above, the leakage reactance of a transformer arises from the fact that all the flux produced by one winding does not link with the other winding. As would be expected, therefore, the magnitude of this leakage flux is a function of the geometry and construction of the transformer.