Yea, it has a large ceramic resistor across the capacitor. JT
On 12/26/2015 5:56 AM, Bertho Stultiens wrote: > On 12/26/2015 06:10 AM, Greg Bentzinger wrote: >> I was always told "Never rectify straight from AC mains without an >> isolation transformer." Bad Karma - Bad Ju ju - will come back to >> bite you. > I tend to agree that you normally want to use a transformer. However, a > 2kVA transformer is expensive, heavy and large. From there on it just > gets worse, both in size, money and weight. > > Modern switch-mode converters are slightly better, but they also are > rather expensive for the high load and/or high voltage versions. > > Once you go over the 1...2kVA range it is often better (very much > cheaper) just to leave the transformer and make very sure that your > isolation and earthing is setup correctly(*). > > F.ex. I use a 230V/230V isolation transformer at work rated at 1.6kVA. > It weighs in at 36kg and cost about $1200,- (ex VAT). > > > (*) and for DC generation without a transformer you should make sure to > have bleeder resistors over the capacitors too. > ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
