ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Fuse blower plug?
by SPSchuman. 07/20/19 05:02 PM
Baseboard Mounted Light Bulb Socket
by SPSchuman. 07/15/19 03:22 PM
Hunter Fan Recalls Brunswick 3 & 4 Light Fans
by Admin. 07/11/19 11:08 AM
Honeywell Recalls some Smoke Sensors
by Admin. 07/11/19 11:03 AM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 31 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Oversized Buck-boost? #47761
01/26/05 08:55 AM
01/26/05 08:55 AM
R
Redsy  Offline OP
Member
Joined: Mar 2001
Posts: 2,056
Bucks County PA
I am working with a 7 1/2 HP Air Compressor motor.
It is 240V 28A 1Ph.
The system voltage is 208.
Someone installed a 3kVA Buck-Boost, but the website for Jefferson Electric (transformer manufacturer)lists a 1kVA unit (minimum) for a 7 1/2 HP motor.
I don't see a problem with an oversized unit, but am not sure.
Anyone have any insight?

Thanks.

Work Gear for Electricians and the Trades
Re: Oversized Buck-boost? #47762
01/26/05 09:59 AM
01/26/05 09:59 AM
W
winnie  Offline
Member
Joined: Sep 2003
Posts: 649
boston, ma
I see no significant safety or functionality issues with a larger buck-boost. It might even provide better motor starting.

The larger core will mean more core losses over the life of the unit, even when the air compressor is off.

-Jon


Featured:

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

 

Member Spotlight
Potseal
Potseal
Saskatchewan
Posts: 264
Joined: February 2013
Show All Member Profiles 
Top Posters(30 Days)
Admin 5
Popular Topics(Views)
257,162 Are you busy
192,980 Re: Forum
182,639 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.014s Queries: 14 (0.004s) Memory: 0.9423 MB (Peak: 1.0600 MB) Zlib enabled. Server Time: 2019-07-21 21:59:48 UTC