ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
dsk 13
Admin 8
doc 3
Recent Posts
Bathroom electrical
by doc. 08/19/17 06:53 AM
electircal ageing test on IPC
by SIAME. 08/15/17 02:43 AM
electrical aging test on IPC
by gfretwell. 08/15/17 12:27 AM
"Line level" audio on Cat 5?
by gfretwell. 08/08/17 10:39 PM
Fire alarm phone lines and color coding
by gfretwell. 08/08/17 10:26 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
240,012 Are you busy
175,618 Re: Forum
167,851 Need opinion
Who's Online Now
0 registered members (), 58 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#167860 - 08/21/07 08:52 PM Sizeing a capacitor.  
leland  Offline
Member
Joined: Aug 2007
Posts: 853
Lowell area, Ma. USA
Hi All.

I have a "baldor" motor, rated-HP= "spl" (special) for a compressor.
115/230 V-- 15A @115V
2 caps (start and run) 1 is missing.
the one that is there is a 125V 270-324 UF (small- (run?))
The larger one is missing (start?)
How could or can I determine the missing size?

I have not done a good search yet, and am hoping to learn somthing.

Thanx Lee


Work Gear for Electricians and the Trades

#167897 - 08/22/07 11:31 AM Re: Sizeing a capacitor. [Re: leland]  
IanR  Offline
Member
Joined: Dec 2004
Posts: 328
Palm Bay FL USA
Typically, when the capictance is marked as a range it is a start capacitor. Run caps typically have a definate value stamped on them. They are also typically larger than start caps. Unfortuneately, I would have no idea as to how to guess the right value cap to use. Contact Baldor and give them the model number of the motor. They may be willing/able to help you.


#167908 - 08/22/07 04:27 PM Re: Sizeing a capacitor. [Re: IanR]  
leland  Offline
Member
Joined: Aug 2007
Posts: 853
Lowell area, Ma. USA
Thanx, My first thought was the larger of the 2 was start.

Interesting, now that it's mentioned, it makes sence.


#168166 - 08/28/07 12:47 PM Re: Sizeing a capacitor. [Re: leland]  
JValdes  Offline
Member
Joined: Jun 2007
Posts: 301
South Carolina
Write down all the name plate info and call 770-772-7000.
This is Baldors number in GA.



Member Spotlight
togol
togol
NW In. USA
Posts: 421
Joined: September 2005
Show All Member Profiles 
Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.014s Queries: 15 (0.003s) Memory: 0.7597 MB (Peak: 0.8926 MB) Zlib enabled. Server Time: 2017-08-21 04:51:23 UTC