How do you find the primary and secondary inductance of a transformer?

The transformer ratio is N1/N2 = V1/V2. (1 – primary and 2- secondary). Inductance of a coil is proportional to square of the number of turns in the coil. so that gives the inductance ratio as L1/L2 = (N1/N2)^2.

How do you calculate inductive reactance of a transformer?

The formula for calculating the inductive reactance of a coil is: inductive reactance, or XL, is the product of 2 times p (pi), or 6.28, the frequency of the ac current, in hertz, and the inductance of the coil, in henries. XL =2p x f x L. L = the inductance value of the coil in henries.

What is inductive reactance in transformer?

The effect by which the current flow of an alternating or changing current in an inductor is reduced is called its inductive reactance. This voltage is proportional to the inductance and as a result of Lenz’s law the induced voltage is in the opposite sense to the applied voltage. …

Does inductance change in transformer?

Inductance in the primary of a transformer decreases as the load on the secondary increases. No it doesn’t. Actually, it does with non-air-core transformers. The permeability of the iron changes with flux density, which means the inductance changes when the amount of current through the transformer changes.

How do you calculate the reactance of a transformer?

Resistance and Reactance of the Transformer

1. Resistive drop in the secondary side = I2R2
2. Reactive drop in the secondary side = I2X2
3. Resistive drop in the primary side = I1R1
4. Reactive drop in the primary side = I1X1

How do you calculate total reactance?

This resultant is called REACTANCE; it is represented by the symbol X; and expressed by the equation X = XL − XC or X = XC − X L. Thus, if a circuit contains 50 ohms of inductive reactance and 25 ohms of capacitive reactance in series, the net reactance, or X, is 50 ohms − 25 ohms, or 25 ohms of inductive reactance.

How are the primary and secondary coils of a transformer coupled?

A current transformer has a primary coil of one or more turns of heavy wire. It is always connected in series in the circuit in which current is to be measured. The secondary coil is made up of many turns of fine wire, which must always be connected across the ammeter terminals.

How do you calculate the secondary turn of a transformer?

Transformer Turns Ratio Formula

1. The number of turns on the primary winding divided by the number of turns on the secondary coil is the transformer turns ratio.
2. The Transformer Ratio Formula for Voltage is as Follows,
3. K= V1V2.
4. Where,
5. V1 = Primary voltage.
6. V2 = Secondary voltage.