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Xentek 5kva isolation transformer runs hot!
Xentek 5kva isolation transformer runs hot!
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Old 13th October 2010, 02:07 AM   #11
bob91343 is offline bob91343  United States
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That is one big transformer! I can't imagine why you'd want to use such a thing.

If it runs hot it must have a shorted turn. If you have a wattmeter, measure the power draw with no load. Obviously it's high or you wouldn't have that much heat.

I submit that the thing is defective.
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Old 13th October 2010, 02:12 AM   #12
bob91343 is offline bob91343  United States
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AndrewT, looking for a compendium of troubleshooting tidbits - well just ask me. I have more information in my head than even I can believe. Seriously, these things require a certain talent to invent. For instance, I invented (I am sure I'm not the first) a method of discovering where a break is in a shielded cable. It's usually at one end but my method finds it without cutting or piercing, within an inch or so.

It also helps that I have a degree in Electrical Engineering, have been a radio amateur for over 60 years, and owned an electronics repair shop for many years.
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Old 13th October 2010, 10:44 AM   #13
AndrewT is offline AndrewT  Scotland
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how about writing a transformer Wiki?
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Old 13th October 2010, 12:44 PM   #14
TonyTecson is offline TonyTecson  Philippines
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Xentek 5kva isolation transformer runs hot!
Quote:
to dramatically reduce the core loss connect the transformer as 240v to 240v and use on 120v.
this makes a lot of sense if you are not using the full 5kva rating of your isolation traffo..
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Old 16th October 2010, 02:22 AM   #15
johansen is offline johansen  United States
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is your line 120 or is it 125?

dropping the line 10% will drastically cut core losses.
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Old 20th October 2010, 04:28 AM   #16
ktuuri is offline ktuuri  Canada
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Quote:
to dramatically reduce the core loss connect the transformer as 240v to 240v and use on 120v.
Yes, it will run cooler and may benifit your system having your amp on Balaned power.
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