• Home
  • /
  • Blog
  • /
  • Basler BE1-50BF Breaker Failure Relay Testing

Basler BE1-50BF Breaker Failure Relay Testing

Basler Be1-50BF Breaker Failure Relay

Happy New Year!

Does anyone have experience with the Basler BE1-50BF Breaker Failure Relay that has the Control and T1 timer pots and test points on the front of the relay?  There are no timer setting wheels. I called Basler and it appears I need an oscilliscope to set the timers.  However, with only one BFI input, supervisory option not installed, I am trying to sort out a testing method.  Basler application engineer only said things like: tricky, complicated and sensitive.

200 ms control time
80 ms T1 time
BF1 contacts w/target
BF2 contacts w/target
1 Amp current pickup

No Instantaneous Element
Publication: 9190600990 Rev. F 09/07

I would appreciate any test plans, notes and suggestions.  I am testing with a Doble F6150 CPU1.  Protest ver. 2.09.

Thanks,

L.Cook

 Did you like this post?

You can share it with these links:

About the Author

Chris is an Electrical Engineering Technologist, a Journeyman Power System Electrician, and a Professional Engineer. He is also the Author of The Relay Testing Handbook series and founder of Valence Electrical Training Services. You can find out more about Chris here.

Read More Articles:

SBF-1 Westinghouse Breaker Failure Relay Failure Question

Leave a Reply

Your email address will not be published.

  1. You’ll likely end up pulling out your hair if you try and use those test points. Treat it like any other 50BF relay.

    Apply 1.5 amp and make sure the trip contacts do not close
    Apply the BF initiate signal and make sure both contacts close.
    Keep the BF initiate signal on and time both contacts. Adjust pots to get the time you need.

    Chris

  2. It is also important that the switch positions on Page 2-3 of the BE1-50BF manual are in the correct position. If you look at the logic diagram on page 3-1, you’ll see that the relay will not operate at all if switched 4,6,5,8, and or 7 are in the wrong position

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}