Leakage inductance is the inductance that exists between the windings of a transformer or inductor that is not coupled by magnetic flux. It can cause power losses and can affect the efficiency of the device. There are different methods to measure the leakage inductance of a transformer or inductor. Here are a few:
Impedance measurement: This method involves measuring the impedance of the transformer or inductor at two different frequencies. The difference between the two impedances can be used to calculate the leakage inductance.
Inductance bridge measurement: This method involves using an inductance bridge circuit to measure the inductance of the transformer or inductor. The inductance of the primary winding is subtracted from the inductance of the entire transformer or inductor to obtain the leakage inductance.
Voltage measurement: This method involves applying a voltage to the primary winding of the transformer or inductor and measuring the voltage induced in the secondary winding. The leakage inductance can be calculated based on the difference between the measured voltage and the voltage that would be induced if there were no leakage inductance.
Current measurement: This method involves applying a current to the primary winding of the transformer or inductor and measuring the current flowing through the secondary winding. The leakage inductance can be calculated based on the difference between the measured current and the current that would flow if there were no leakage inductance.
It is important to note that the measurement method used may depend on the specific characteristics of the transformer or inductor being measured, as well as the equipment and resources available.
