Search found 8 matches

by Disco
Thu Jan 03, 2008 6:31 pm
Forum: General Discussion
Topic: 3 phase welder
Replies: 10
Views: 1916

Sorry - forgot to attach this page. This is the primary side. I will be using 240 vac.

http://www.flickr.com/photos/[email protected]/[/img]

Thanks
by Disco
Wed Jan 02, 2008 6:33 pm
Forum: General Discussion
Topic: 3 phase welder
Replies: 10
Views: 1916

OK - Hope this works. Link to the schematic: http://www.flickr.com/photos/[email protected]/2159926133/ You can enlage it after it opens. I think I can use just the "C" winding. Disconnect all of the primaries and secondaries of the "A" and "B" winding. This will cut down on the max current out, but I do...
by Disco
Wed Jan 02, 2008 5:14 pm
Forum: General Discussion
Topic: 3 phase welder
Replies: 10
Views: 1916

Yes - it is a DC welder. You are right, the three phase is smoother. But if I run on single phase, I will have more ripple than on three phase. dacflyer - I'm still trying to get a schematic in here some how. Not having much luck. I don't see an option to "add image to post". Sorry to be so dense. I...
by Disco
Tue Jan 01, 2008 7:19 pm
Forum: General Discussion
Topic: 3 phase welder
Replies: 10
Views: 1916

I have a schematic. I'm not sure how to attach it.
by Disco
Tue Jan 01, 2008 4:28 pm
Forum: General Discussion
Topic: 3 phase welder
Replies: 10
Views: 1916

3 phase welder

I have a Hobart Model R400 3 phase welder (230 or 460 vac). Can I parallel all three transformers and run on single phase? Or can I just fed one transformer and run at reduced output? This is a 400 amp welder with a mag amp control. I don't need 400 amps, 150 would probably be plenty. Looks like I c...
by Disco
Tue Feb 24, 2004 5:34 pm
Forum: General Discussion
Topic: Automotive dual battery question
Replies: 29
Views: 3703

Re: Automotive dual battery question

The batteries are connected in parallel. The drivers side 4 ga. wire carries only the current from that battery. It connects to the passenger side battery. The 2/0 carries the current from both batteries. If both batteries are healthy, the current will be pretty close to the same from each battery.
by Disco
Mon Dec 01, 2003 8:08 pm
Forum: General Discussion
Topic: DELAY FOR SOLENOID
Replies: 3
Views: 780

DELAY FOR SOLENOID

I have two identical 12 volt dc solenoids that draw about .5 amps coil current. I need to connect them so that one switch controls them both (coils in parallel). I need make sure one makes before the other. Will a choke provide the delay I want? If so, what size? This is an outside application, so I...
by Disco
Fri Jan 03, 2003 4:59 pm
Forum: General Discussion
Topic: Garage door opener safety sensors
Replies: 13
Views: 2244

Garage door opener safety sensors

How do those safety sensors work? They usually have two wires that connect to both units - transmitter and receiver. These wires must carry the power to the sensors and the signal back to the main unit. I don't want to disconnect them, I just want to understand how they work so I can trouble shoot -...