AC Hi-pot (HPAC)
Ensures that the windings are positioned correctly with the correct materials to
provide the required level of safety isolation.
Measures and controls the applied voltage throughout the complete duration of the
test. The AT3600 applies a voltage between two groups of windings (or core) with
the windings in each group being shorted together.
Check shorted turns. Ensures that the insulation material around the copper wire
(usually lacquer) has not been damaged during manufacture
A high energy impulse is discharged into a winding. The transformer is characterised
by the area under the wave-form, measured in volt-seconds.
Insualtion Resistance (IR)
Check the integrity of the insulation between separate windings, or between a windings,
or between a winding and a screen.
Tester applies a dc voltage between two groups of windings with the windings in
each group being shorted together.
Magnetizing Current (MAGI)
Check transformer has been assembled properly, with the appropriate number of turns,
the right grade of magnetic material for the core, and the correct air gap if required
Check primary turns and correct core material properly assembled