×
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

Electrical

Electrical

Electrical

(OP)
When is it required to use desensitising equipment on tripping, closing and control equipment?. What is the lowest permissable DC voltage operating threshold ?  

RE: Electrical

We will need more information to answer your question.  What type of controls? Switchgear? Industrial machinery? What type of DC circuit? Solid state logic circuits, motor control, breaker and protective rekay controls?
What voltage level 12VDC, 24V, 125VDC, 250VDC?

RE: Electrical

(OP)
This will be on breaker controls and protection relays typically used on MV and HV protection systems. the operating voltage is 220VDC. Thanks

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