isolation transformer

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crgfrench
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Re: isolation transformer

Post by crgfrench »

In one of the Dlab videos Terry is drinking wine in the beginning and halfway through the video he’s probing the live socket pins with the probe in his right hand and his left fingers resting on the metal chassis.
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geoff 1965
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Re: isolation transformer

Post by geoff 1965 »

The isolation transformer is out of the equation, this 8 amp variac takes up 3/4 of the steel cabinet. fitting a NTC thermistor in series to input to protect from inrush current these big variacs can have,output is simple limiter/direct with voltage/current meter.
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JMPGuitars
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Re: isolation transformer

Post by JMPGuitars »

Why use a 2A fuse on an 8A variac? If you're going to limit it, I would use a second fuse to limit it on the output side, and have an easily accessible fuse holder to swap it out for different amps or DUTs that might need more.
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geoff 1965
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Re: isolation transformer

Post by geoff 1965 »

Finished housing the variac,ac output is switchable between bulb limited or direct fused “good suggestion Josh” tested with a 500mA fuse,I can get a range of fuses to suit testing now,better than a current trip which is limited to one level.
bridge rectified/filtered the ac post out socket so i’ve around 430 VDC as well.
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JMPGuitars
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Re: isolation transformer

Post by JMPGuitars »

But more importantly, how fast does it go with that racing steering wheel?
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