ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

ECN Shout Chat
Top Posters(30 Days)
Admin 16
Recent Posts
Another Forum Update
by Admin. 03/22/17 03:04 PM
Dining room plugs
by watersparkfalls. 03/21/17 10:31 PM
TRUE POWER
by jraef. 03/21/17 09:13 PM
WEG CFW-11 Frequency Inverter
by jraef. 03/21/17 08:50 PM
fuse rejectors
by HotLine1. 03/20/17 08:14 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
231,187 Are you busy
165,919 Re: Forum
160,456 Need opinion
Who's Online Now
1 registered members (gfretwell), 48 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#16378 - 11/11/02 12:52 AM Rotary Phase Converter  
JuddsAirco  Offline
Member
Joined: Oct 2002
Posts: 49
KY, USA
I have a fire department that needs a 3 phase 5hp pole mount rotary siren to be installed. They do not have access to 3 phase power. Need to know if a rotary or static phase converter is more practical and which is easier to install. Done plenty of 3 phase wiring but never had to fool with converters before.

[This message has been edited by JuddsAirco (edited 11-11-2002).]


The lesson is in the struggle, not the victory.

Work Gear for Electricians and the Trades

#16379 - 11/11/02 01:37 AM Re: Rotary Phase Converter  
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
There’s probably no rule of thumb, but you may want to limit total voltage drop {on 1ø and 3ø sides} to 3% running {and 15% during starts.} Current on the 1ø side will likely be ~twice the 3ø current—1.73x+converter loss.

http://www.gwm4-3phase.com
http://www.phaseconverter.com
http://www.ronkelectrical.com

Voltage imbalance [ø-ø, not ø-grd] can be a significant contributor to stator-heating problems in the process.



[This message has been edited by Bjarney (edited 11-11-2002).]



Member Spotlight
NickD
NickD
Amish Country, PA
Posts: 46
Joined: March 2013
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.011s Queries: 14 (0.002s) Memory: 0.7419 MB (Peak: 0.8582 MB) Zlib enabled. Server Time: 2017-03-23 06:17:06 UTC