Hopefully? Another 48vdc-240vac Toriod Inverter build.

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phil99 Guru Joined: 11/02/2018 Location: Australia Posts: 2559	Posted: 10:54am 06 Jan 2023       In the "Good Old Days" it was usually necessary to re-form the dielectric of electrolytic caps. if they had not been used for a while, including new ones that have been in storage too long. You hook them up to their rated voltage via a resistor to limit the leakage current to a few mA and leave them like that for a few days. For big caps like yours perhaps a week would be better. When the leakage drops below 100uA they should be safe to go into service. If the leakage has risen after that time bin them.