3.5 Pulse Transformer
Pulse Transformer Part Number P1612 2:1
This transformer is tested using a plug in fixture. The fixture is
constructed to accommodate 5 of the pulse transformers at once and the
program constructed to test all 5 in one test cycle.
The fixture program has been written to include a number (1 to 5) in
front of each terminal name.
This will allow results from test failures to show which of the five
transformers is faulty
The transformers are tested five at a time because the test specification
demands a hi-pot test of ten seconds duration.
For this transformer hi-pot failures are very rare, so applying the
hi-pot voltage across all 5 transformers in parallel results in
substantial time saving.
Recommended measurements for pulse transformers.
||To ensure correct wire size has been
used, and that the transformer is
properly installed in fixture
||Ensures that winding has correct
primary turns, and the correct
magnetic material. Ensures that core
faces have been properly cleaned
|Turns Ratio and Phasing
||Checks that the transformer has
correct turns on all windings, and that
polarity of the windings is correct
||For checking insulation up to 850 Vdc
||For checking insulation at higher
voltages (e.g. 500V-5kV rms)