SW4024 switching issue [RE-wrenches]

[Kirk Herander, VT Solar]

S-

I haven't been able to connect Trace tech support yet(their new phone menus are
wonderful fun). Do you know if these relays are socket-mount or soldered on the board?

thanks, Kirk

"R. Sparks Scott" wrote:

>         Kirk;
>
>         Consider that it might be time to replace the transfer relays in the
> Trace. If the system used to transfer just fine, it could be that the
> relays are beginning to have wear on the contacts, or perhaps the steel
> core in the coil be becoming magnetized, causing the relay to "hang" just
> long enough to prevent the transfer from happening quickly enough.
> Weakening of the springs that cause the relays' (there are two in parallel)
> armatures to return to the normally-closed position when the Trace gives
> the logic command to switch back to invert might be a factor.
>         Another thing to add to the now-too-late wish list. Logic port to send
> voltage to an external (perhaps 100+ amp) transfer relay.
>         None of that considers that there may be some problem with the electronics
> of the inverter as well, such as a distorted waveform at low/no load, under
> voltage without load, phase difference between load and generator, etc.
> Have you checked to see that the generator is running at exactly 60 Hz? How
> is the generator voltage??? Low?? High?? Try to set the generator voltage
> to be equal to the inverter's operating voltage.
>         Best of luck.
>
>         -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

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 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