ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Video door bell causing chime activation of coil
by gfretwell. 12/16/18 09:01 PM
Pull out fuse panel?
by wa2ise. 12/14/18 05:09 PM
Conduit fill Calculations
by gfretwell. 12/08/18 08:39 PM
Swimming Pool question
by HotLine1. 12/05/18 12:37 PM
Tingle off the water spigot
by rmiell. 11/30/18 01:03 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 4 guests, and 21 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Motor feeder voltage drop #181965
11/12/08 09:38 PM
11/12/08 09:38 PM
C
cgw  Offline OP
Member
Joined: Jul 2004
Posts: 134
Rochester NY
When the elevator manufacturer says to not exceed 3% drop in the voltage do they mean at motor start or at the running current?

Work Gear for Electricians and the Trades
Re: Motor feeder voltage drop [Re: cgw] #181970
11/13/08 02:43 AM
11/13/08 02:43 AM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,324
Estero,Fl,usa
Based on FLA of the total motor load plus 25% of the largest motor, would be my guess.


Greg Fretwell
Re: Motor feeder voltage drop [Re: gfretwell] #182038
11/16/08 02:35 PM
11/16/08 02:35 PM
J
JValdes  Offline
Member
Joined: Jun 2007
Posts: 301
South Carolina
Running. You would never meet 3% VD on start.


Featured:

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

 

Member Spotlight
BEAMEUP
BEAMEUP
WA
Posts: 27
Joined: December 2004
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
252,252 Are you busy
189,209 Re: Forum
178,892 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.024s Queries: 15 (0.004s) Memory: 0.9506 MB (Peak: 1.0758 MB) Zlib enabled. Server Time: 2018-12-17 10:10:10 UTC