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Old 23rd April 2004, 11:22 AM   #1
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Join Date: Feb 2004
Location: Istanbul/TURKEY
Default earthing


What is the proper way for earthing in a bridge-rectified power transformer without a center-tap ?


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Old 23rd April 2004, 11:44 AM   #2
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Join Date: Apr 2004
Location: Monroe Township, NJ

The following assumes "normal" tube circuitry with a negative ground.

There are 4 connection points in a bridge rectifier. The trafo gets connected to the 2 points that join cathode to anode. The point that joins 2 anodes together gets grounded. You take the B+ from the point that joins 2 cathodes together.
Eli D.
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Old 23rd April 2004, 02:35 PM   #3
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Join Date: Feb 2004
Location: Istanbul/TURKEY
Ok. So, connecting the earth of main line to the ground point of bridge-rectifier is safe.

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