Mains filters? (But used on the secondary)

[The Dark force of dance]

Y-ellow Y'all.
	Fresh from my brush with beryllium oxide, I have a new query. I like to
use mains filters. Especially on amps and other high current systems where
the unregulated supplies blow close to the wind. IE: in this case where the
supply delivers 78 volts and the max tolerance is 84. Line filters help
remove nasty spikes of which if of sufficient duration, could cause damage.
We all know that story.

But ever since I installed an RCD (residual current device) in the fuse
box, many of these critters tend to trip the RCD. Presumably because they
dump just a miliamp too many to ground. In one particular case it would
only trip the RCD on turn-off.

What I'm wondering is if it would be feasible to place a line filter on the
secondary of the transformer as opposed to the primary side. Sure the
filter characteristics would be different but if my reasoning is correct,
they should be only more effective not less.

Anyone have any thoughts on this?

Note: US people probably won't notice this effect due to the floating
nature of their mains. However this fact got me thinking about the isolated
side of the transformer etc.

Thanks in advance.

Be absolutely Icebox.

 _ __        _                              
| "_ \      | |         batzman at all-electric.com / aek at all-electric.com
| |_)/  __ _| |_ ____           ALL ELECTRIC KITCHEN               
|  _ \ / _` | __|___ |  The Elementary Urban sanity CD
| |_) | (_| | |_  / /   out now on Transmission Communications
|_,__/ \__,_|\__|/ /    
                / ,__   http://www.all-electric.com
Goodfortune    |_____|