Price: $369.00

Where Used

The Q factor measurement would normally follow a measurement of the inductance of the primary winding in the test program.

As with an inductance measurement, the Q factor test would normally be used for signal, pulse and switched mode power transformers, where the normal operating conditions require only small excursions of the B-H curve, never extending beyond the linear regions.

A Q factor test is one way of highlighting shorted turns within the transformer.

Measurement Conditions

To measure Q factor, the tester performs exactly the same steps that would be used to measure inductance. The only difference is in the calculation at the end of the test: the measured voltage is divided by the current to obtain a complex impedance from which the Q factor is calculated.

The test signal can have a frequency in the range 20Hz to 1MHz, and an amplitude from 1mV to 5V.