×
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

Solid State DC Overloads

Solid State DC Overloads

Solid State DC Overloads

(OP)
I am looking for a DC solidstate Overload for an application which drives a 76 FLA 125 VDC 10 HP motor. So far I have not been able to find a DC solidstate overload for DC power circuits. Does any body manufactures this?. Can only find solidstate overloads for AC applications but not for DC.
Help.

RE: Solid State DC Overloads

Suggestion: If you apply a dc drive, the overload protection comes with it. Else, you may design it over a shunt resistor, and dc relay that picks up and opens the contactor, which in turn will turn off the motor.

RE: Solid State DC Overloads

Check out Utility Relay Co. http://www.utilityrelay.com/prod02.htm
They make electronic C/B retrofit kits for AC and DC C/Bs.
The DC kits consist of Hall Effect transducers or shunts and LT, ST, Inst, GF, Reverse current, and Rate-of Rise functions, set to actuate a shunt trip. I'm sure they can provide what you need for your system.
We have not used the DC systems, but have used the AC systems for many years with no problems. They are very good at adapting their equipment to your needs. Talk to Helmut Weiher((330) 405-0533 x102) or Drew Binder ((888) 289-2864 x101). Good luck.

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