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TrevorG3VLF · 16th Jun 2018, 2:10 pm

The transformer does not have windings in series, there are several supplies with the DC outputs connected in series.
Each supply will have to do the work of any other so there is no difference between high voltage end and low voltage end other than insulation capability. It seems you have some leakage. Show us where you got this measurement.

What is the voltage of each output winding? 400 or 500V should be OK to feed into a 800V bridge but the higher the diode voltage the better. I have some 1200V diodes and higher voltage diodes are available.

Make sure the balancing resistors are of good quality.

16th Jun 2018, 2:10 pm	#2
TrevorG3VLF Rest in Peace Join Date: Apr 2011 Location: Matlock, Derbyshire, UK. Posts: 1,378	Re: Testing 813's. The transformer does not have windings in series, there are several supplies with the DC outputs connected in series. Each supply will have to do the work of any other so there is no difference between high voltage end and low voltage end other than insulation capability. It seems you have some leakage. Show us where you got this measurement. What is the voltage of each output winding? 400 or 500V should be OK to feed into a 800V bridge but the higher the diode voltage the better. I have some 1200V diodes and higher voltage diodes are available. Make sure the balancing resistors are of good quality.