[R-390] RE: 390A relay problems

[Tim Shoppa]

2002tii <bmw2002tii at nerdshack.com> wrote:
> Bob wrote:
>
> >Perhaps it is too big?, it's a 300 watt limiter. I also notice if I 
> >switch past standby and go right to AGC, it immediately pulls right in,
>
> It is certainly too big for a 390 on standby.  I found the following 
> on the web, which I think is about the particular unit you have:
>
> "The instant the equipment is turned on, the internal meter will show 
> a drop to about 60 VAC, and then it will rise over the next ten 
> seconds to a value near 100 VAC. This rise will continue for about 
> two minutes where the load voltage will level off and hold for as 
> long as the equipment is turned on.

Well, then, whatever's in the box is a lot slower than my inrush limiter
(a Keystone CL-80). When I meter I see an initial voltage drop across
the limiter of close to 60VAC too, but over just a second or two it's
down to 10V, and in like 30 seconds it's leveled off at just 2 or 3V.

If I compare my limiter with the quote you found, I see a table like this:

		CL-80		Web description of ?ER unit?
Initial on	60V		60V
2 seconds	110V
10 seconds	115V		100V
30 seconds	118V
120 seconds			114V

Of course, different people have different expectations. Some want
to protect all the internal circuitry against any hazards from normal
line voltages or rapid turn-on, whereas others like me are quite happy
to blow out those ancient electrolytics if they aren't up to snuff :-).

Tim.