×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Grounding Low Voltage Generators

Grounding Low Voltage Generators

Grounding Low Voltage Generators

(OP)
I am interested to know how would one achieve grounding of a 400 volt, 1600 kilowatts generator. That is to say with the genset capable of 2300Amp how would grounding be achieve given the amount and size of cable that would have to be used between the nuetral terminal of the generator and the grounding rod. How would all this cable be connected to a rod.

RE: Grounding Low Voltage Generators

You'd bond the switchgear earth bar to the generator with conductors rated for the fault level, and connect the whole lot to an earthing electrode. It is quite likely that the generator neutral will also be connected to this point.

You will need to include an earth fault relay on the connection to earth, or possibly in the residual connection of the 3 lines and neutral. If you're using an earth rod then the E/F setting will be fairly low - a few tens of amps - so you will probably need a dedicated CT.
  

----------------------------------
  
If we learn from our mistakes I'm getting a great education!
 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources