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  #1  
Old 11-24-2018, 01:16 PM
N2IXK's Avatar
N2IXK N2IXK is offline
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The isolation transformer should be used on the device under test, NOT the test equipment!

If you need an isolated scope to make a floating measurement, get a high voltage differential probe or a battery powered scope. Don't float it with an isolation transformer or break the earth ground connection.
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Old 11-24-2018, 08:14 PM
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Kevin Kuehn Kevin Kuehn is offline
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Quote:
Originally Posted by N2IXK View Post
The isolation transformer should be used on the device under test, NOT the test equipment!
Ordinarily you wouldn't isolate a scope. But all it takes is a brain fart and you get a big surprise. To complicate matters, some isolation transformers have un-isolated convenience outlets on the front that are in my opinion a big no-no.
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Old 11-26-2018, 08:57 PM
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mr_rye89 mr_rye89 is offline
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I have a Oneac 500VA isolation transformer (picked up at a warehouse my boss bought) around here I use for TVs an another Oneac 75VA (at surplus for cheap) around here for radios. Both have served me well for years.
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