Hello Everyone,
As many of you may know in the 2021 edition there will be a new informative annex R which deals with Capacitor Banks.
This annex provides equations for the estimation of the stored energy in Capacitor banks which can be used to generate labels for these pieces of equipment.
The equations seem straightforward however one thing that is puzzling is the determination of the discharge time from nameplate data.
When sampling various capacitor banks I noticed that most banks advertise a specific discharge time however typically the discharge R is not mentioned. .
For example take this sample capacitor bank :
https://www.ebay.com/itm/GE-Power-Facto ... SwJ-9exYlNIf the discharge time is not legible on the nameplate what approach can be taken to find the discharge R?
Has anyone had experience with this or see a practical approach to determining the discharge resistance?