ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
New fan motor for Panasonic
by HotLine1. 06/25/19 03:53 PM
Burning out of return(white) side of 120volt rec
by crselectric. 06/14/19 02:15 AM
Video door bell causing chime activation of coil
by JoeTestingEngr. 06/13/19 12:43 PM
Troubleshooting Voltage Drop Across Relay
by gfretwell. 06/09/19 11:49 AM
Apple Recalls Three-Prong Wall Plug Adapters
by Admin. 06/05/19 09:06 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 13 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Voltage Drop HV 13800 volts #219422
06/27/18 09:02 AM
06/27/18 09:02 AM
Y
Yoopersup  Offline OP
Member
Joined: Mar 2003
Posts: 849
Michigan
I take it calculations are Calculations HV or LV .
Calculators on line seem to work for both HV & Medium voltage.
Any one know any different.Or have link to HV Calculators???
I know terms are 90c not 75c And cable amperage of cable different .
Thank you .
Yoopersup

Example below
1 conductors per phase utilizing a #3/0 Copper conductor will limit the voltage drop to 1.76% or less when supplying 200.0 amps for 8000 feet on a 13800 volt system.
For Engineering Information Only:
200.0 Amps Rated ampacity of selected conductor
0.077 Ohms Resistance (Ohms per 1000 feet)
0.042 Ohms Reactance (Ohms per 1000 feet)
345.0 volts maximum allowable voltage drop at 2.5%
242.798. Actual voltage drop loss at 1.76% for the circuit
0.9 Power Factor

2017 / 2014 NEC & Related Books and Study Guides
Re: Voltage Drop HV 13800 volts [Re: Yoopersup] #219424
06/27/18 09:29 PM
06/27/18 09:29 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,368
Estero,Fl,usa
Voltage drop is dependent on the current not the voltage so the calculator will still work but obviously the percentage is based on the voltage you start with.


Greg Fretwell

Featured:

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

 

Member Spotlight
sbi
sbi
indiana
Posts: 47
Joined: March 2008
Show All Member Profiles 
Top Posters(30 Days)
Admin 2
Khombo 2
Popular Topics(Views)
255,884 Are you busy
191,858 Re: Forum
181,623 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.016s Queries: 15 (0.003s) Memory: 0.9435 MB (Peak: 1.0605 MB) Zlib enabled. Server Time: 2019-06-26 20:41:20 UTC