2.37 ILK - Leakage Current
Leakage current is the current that will flow between the primary
windings and secondary windings due to interwinding capacitance.
Leakage current is normally specified only for transformers used for
medical equipment having patient contact, where it is an additional safety
It is normally measured at normal line voltage and frequency, and typical
value of leakage current is tens of microamps.
The leakage current test is needed for transformers used in certain
applications, mainly medical, where it is an additional safety
The test is typically carried out by applying the test voltage between
all the primary terminals shorted together, and all the secondary
terminals and screen shorted together.
The voltage and frequency applied are normally the operating voltage and
frequency of the transformer.