SW4024 switching issue [RE-wrenches]

[Kirk Herander, VT Solar]

S-

What E-mail(i.e. comments starting with ">") are you referencing in the below reply?
Nothing I recall reading.

Kirk

"R. Sparks Scott" wrote:

> >coil voltage to crash on the internal contactor when at the same moment.
>
>         The internal transfer relay is NOT directly connected to the AC input, it
> is controlled by a DC logic, not powered by the AC itself. As a result,
> killing the generator will probably result in some out-of-spec voltage or
> freq, causing the logic to do the disconnect. This may happen before of
> after the equipment being powered is affected by the dying voltage/freq.
> Tightening the AC2 freq and voltage range in setup might go a long way
> towards clearing this up.
>         Either way, seems like the logic should unload the generator *before* it
> is shut down, assuming a controlled stop, and not a generator failure. I
> can tell you for sure that killing *any* gasoline-powered internal
> combustion engine while it is running at speed and with a load is a sure
> way to shorten it's life. Consider all of the fuel that is sucked into the
> cylinders and left unburned. Tends to wash down the cylinder walls and
> makes the piston lubrication during the next start sequence virtually nil.
> This applies to your vehicles as well, don't rev the motor just before
> cutting the ignition.
>         Shutting off the ignition on *any* engine with a turbo should only be done
> after the engine has idled for a moment or two. Turbos can reach 100,000
> RPM internally, and it sometimes takes a while for them to spin down from
> high speed/heavy load. Shutting off the engine while they are hauling ass
> will burn out their bearings pronto. (Probably not a lot of turbocharged
> generators in service on this list, eh?)
>
> >If I told you what I actually knew, I'd have to kill you. They are way
> ahead of you.
>
>         This is very cryptic. What does it mean?
>
>         -S
>
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The archive of previous messages: 
 http://www.topica.com/lists/RE-wrenches/

To unsubscribe send a message to: 
 RE-wrenches-unsubscribe at topica.com

To check out the other RE-Wrench participants:
 www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine: 
 www.homepower.com

For info contact list moderator by email:
 michael.welch at homepower.com

____________________________________________________________
T O P I C A  -- Learn More. Surf Less. 
Newsletters, Tips and Discussions on Topics You Choose.
http://www.topica.com/partner/tag01