CraftWEB Hot Glass Talk  

Go Back   CraftWEB Hot Glass Talk > Hot Glass > General Hot Glass Discussion

Reply
 
Thread Tools Display Modes
  #1  
Old 06-15-2018, 07:47 AM
Victor Chiarizia Victor Chiarizia is offline
Registered User
 
Join Date: Sep 2005
Location: fairview, NC
Posts: 547
Victor Chiarizia is on a distinguished road
amp draw on 30K stadlmelter

i'm curious as to what other folks register as amp draw at idle with their stadleman furnace. just had an energy audit from my electric company and we registered 75amps on one leg of my single phase unit. thats 150amps total draw which i believe is pretty high. any one? Steve? vic
Reply With Quote
  #2  
Old 06-15-2018, 08:05 AM
Dave Hilty's Avatar
Dave Hilty Dave Hilty is offline
Registered User
 
Join Date: Apr 2002
Location: Oxford, MI
Posts: 625
Dave Hilty is on a distinguished road
For single phase you put the clamp meter on one leg only. Thats your amp draw total. For some applications single phase 240 feeds may have a higher amp draw on one leg or another but your single phase furnace should have the same on each leg. You don't add one to the other for single phase draws.
__________________
Dave Hilty
Reply With Quote
  #3  
Old 06-17-2018, 06:10 AM
Victor Chiarizia Victor Chiarizia is offline
Registered User
 
Join Date: Sep 2005
Location: fairview, NC
Posts: 547
Victor Chiarizia is on a distinguished road
thanks but i always thought you added them together to measure amp draw. so my draw would only be 75 amp at idle. im also looking for actual ##'s for comparison. v
Reply With Quote
  #4  
Old 06-17-2018, 06:48 AM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
 
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 20,088
Pete VanderLaan is on a distinguished road
I would call Cheyenne. He builds quite a few and order a lot of 28 inch pots. My own experience suggested to me that a regular session with an infra red laser would tell you if you have issues that would cause it to draw heavily when it shouldn't. That whole area around where the walls meet the floor was always an issue for heat loss as well as the passage brick areas. The elements do seem to have a life span but the 9/18 runs for a long time with no issues. Not so much with the 6/12. The Chinese customs has changed its policies on export making it a greater nuisance to get them.

I stopped using the moly when fuel prices just got too high. The electric is indeed far safer but it's so nice to use gas and make nice color again.
__________________
Where are we going and why am I in this basket?
Reply With Quote
  #5  
Old 06-19-2018, 10:20 PM
Brian Wong Shui Brian Wong Shui is offline
Registered User
 
Join Date: Oct 2002
Location: Atlanta, GA
Posts: 157
Brian Wong Shui is on a distinguished road
Measure with a true rms clamp meter. Youíll get incorrect readings if it isnít true rms.

We run about 19kw at idle on our 3phase 30kw rig

75amps at 240v is 18kW so Iíll say that in the same ballpark.

FWIW, the furnace canít pull 30kW at higher temps (2300F). The resistance of the elements at that temperature restrict it to about 26kW
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 03:15 AM.


All published comments within these message boards are the opinions of its contributor and does not represent
the opinion(s) of the owner(s) of this website. Please see the Terms of Use file for more details.

Books to Help Artists Avoid Online Scams: Top 10 Email Scams | Social Media Scams

Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
© CraftWEB.com. Opportunity Network. 2008. All Rights Reserved.