Hello War, I hope God who raised, has caught your eye today. And not the bunny from Hell.
Also in no way am I upset or trying to picking on you,if I Possibly could, it is just what I think I know, if I am wrong correct me. Ok enough said.
Well its funny you brought up economizer because at low...
Moregas: Well anyways I have been working in this trade for 32 years, all it takes is a small pit to start a weld. (Six down, middle)
Waross: Is this he first set of contacts that you have seen? Newbies are often horrified by the look of normally operating silver oxide contacts. Yes there may...
You said:
“There is no room to deliver a complete lecture on the different phenomena here. But if you google 'pitting', 'welding' 'arc', 'contactor' etcetera, you may find that google is your friend.”
Ok I get it. If you don’t understand it, you can’t explain it.
Hi
All you need is one botched closure and you can have blasted contacts. why? Is it- LRA + capacitor discharge. Also can you explain why different rules from low power arcing to high power arcs?
moregas
Hi hoppengarner,
You don't sound sure of how the controls work exactly! Is it a delay for that 5 to 8 seconds?
If so, I dont think they would set up low speed then high speed for no reason, and would suggest leaving the old starters as the back up, or find a way to keep it as it was when...
Thanks Waross and Skoqsqurra for your assistance,
Waross I am sorry, type of contacts, I not sure, but I can tell you it came with a 30 amp contactor. I knocked it up to a 40 amp contactor, then a 50 amp contactor. (furnas #42df35af) the voltages and currents are recorded and normal. Tag reads...
Hi,
I was thinking to build arc suppression circuit, one for each of the three contacts, for a three phase motor contactor. I was thinking of a RC circuit. The motor (Refrigerant compressor) information, guessing, is about- 20 H.P., 480 ACV, starting current is three or four times running...
