Results 1 to 2 of 2

Thread: THD on Neutral

  1. #1
    New Member
    Join Date
    Jul 2020
    Location
    ZA
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    THD on Neutral

    Hello, Thankyou in advance for helping me.
    I often find interest in the valued discussions here.
    I would like some advice

    What is the total harmonic distortion acceptable on a 4-wire three phase installation

    My measurements are
    Phase 1 - 3.8%
    Phase 2 - 4.1%
    Phase 3 - 5.5%

    Neutral - 96.8% [not a typo]

    If this is not correct - how do I fix it

    Currently measuring a relatively balanced load around 85 to 100 amps per phase

    Sent from my SM-G960F using Tapatalk

  2. #2
    Platinum Member
    Join Date
    Apr 2010
    Location
    planet earth
    Posts
    2,423
    Thanks
    109
    Thanked 203 Times in 177 Posts
    Unless you understand harmonics or an engineer, dont waste your time.

    3rd 5 th 7 th are ones to take note of but like power factor correction, rather leave it for people who specilise in that field.

    I can only assume you have got your hands on a power quaility analyser and now trying to understand the results. I have been working with a fluke 435 since 2006 and still dont fully understand the results when i upload them to the PC.
    Comments are based on opinion...not always facts....that's why people use an alias.

Similar Threads

  1. Over voltage and lost neutral protection
    By ians in forum Electrical Contracting Industry Forum
    Replies: 7
    Last Post: 13-Mar-20, 07:16 PM
  2. [Question] Floating neutral
    By FRENCHIE in forum Electrical Contracting Industry Forum
    Replies: 9
    Last Post: 07-Dec-19, 01:19 PM
  3. DB Board Breaking Neutral
    By RobertZA in forum Electrical Contracting Industry Forum
    Replies: 6
    Last Post: 24-Nov-19, 02:19 PM
  4. attachment point for neutral
    By Canuck in forum Electrical Contracting Industry Forum
    Replies: 1
    Last Post: 19-Aug-19, 05:35 PM
  5. [Question] Neutral split
    By Hotspot in forum Electrical Contracting Industry Forum
    Replies: 3
    Last Post: 10-Jan-18, 07:10 PM

Did you like this article? Share it with your favourite social network.

Did you like this article? Share it with your favourite social network.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •