U I isolation transformer, 240 volts primary with 100vac and 120vac secondary's, the two secondary's can be series connect to get 220vac outputs, this will be an addition to my bench for testing Japanese and American units and will be used intermittently...weighs in at around 5kg.
Attachments
024 solation power traffo short circuit testing..
- @3% voltage drop of 7vac on a primary of 240vac, current is 4.2A for a power of 1008 watts...
- @ a voltage loss of 10vac, current is 6.2A for a power of around 1500 watts..
- this is the correct way of testing power traffo capacity, oftentimes current in amperes is quoted, but when asked for actual testing, nothing....
- a 17kg pts used as isolation type will have much lower capacity than and auto transformer type...
- Isolation type pts will have lower capacity than an autotransformer type of the same core weight..
