×
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

Low Voltage 170 VAC Arc Calculation

Low Voltage 170 VAC Arc Calculation

Low Voltage 170 VAC Arc Calculation

(OP)
The IEEE 1584 caclulations are for 200 VAC and up for small arc gaps.  

Has anybody seen information on whether or not an arc between a three phase 170 VAC supply will sustain on high current systems for gaps ranging from 3 inches to 12 inches?  The available fault current is approx 200 kA.

I am also looking for information on arc energy between one phase of the AC supply above and the 90 VDC bus within the rectifier.

RE: Low Voltage 170 VAC Arc Calculation

I'm not aware of any published test data at these conditions, but it seems very unlikely that an 170 V ac arc could be sustained at those gaps.  It's pretty difficult to sustain an arc at 208V, although it can be done, but only at much smaller gaps.  

There is a lot of additional testing being conducted.  You might try contacting someone on the IEEE 1584 committee.

As for the ac to dc scenario - I have no idea.  Is there really a current path?

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