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

Argentine grid collapse in Jun'19

Argentine grid collapse in Jun'19

Argentine grid collapse in Jun'19

Has anyone seen the report copy??
I am aware there was fault in one of 500kV lines which triggered the event. But, as we all know from experience such major disruptions involve more than one failure at ground level.
I am curious to have the lessons that the event could offer to us, protection engineers.

RE: Argentine grid collapse in Jun'19

Below is a summary update of the Argentinian blackout on 6/16/19.
This cost a sizable fine of $AR400M ($US9.4M)to T. Line operator, Transener.
The main issue is attributed that Transener forgot or improper re-sett the relay system after performing a physical bypass in one of the 500 kV parallel lines that were out of service prior to the SC event.
Hope this help.

RE: Argentine grid collapse in Jun'19

erdep, Thanks.
How can I get English copy without spending for translation!

RE: Argentine grid collapse in Jun'19

Cuky2000, I guess when there was fault in the subject 500kV OHL, circuit breakers at Colonia & Belgrano tripped but, Campana circuit breaker remained closed. This would have resulted in uncleared fault in the power system, causing the trip of Compana-Rodriguez line back up protection operated. It is likely Busbar trip happened at Compana on BF protection initiation.
As the picture indicates the load on the Colonia-Belgrano-Campana line was 1650MW, prior to the event. Even if protection is correctly configured and fault is cleared as designed, could the power system have withstood trip of a line carrying such huge amount of power??

RE: Argentine grid collapse in Jun'19

Sounds like they added a By-pass during a previous SC event which involved disabling the DAG (Disengagement automatic of Generation) which would disconnect in an automatic/smart way generation in order to achieve normal operating frequency. Without this, The fault cascaded to BF adjacent plants and islanding others. This contributed to the fault which eventually collapsed the system.

RE: Argentine grid collapse in Jun'19

Hi RRaghunth,

Reading the report appears the line breaker at Colonia & Belgrano cleared the fault but the large generators did not detect this scenario on time to ramping down remaining in service until eventually tripped out probably by Overspeed of the units.
As indicated in the report:

Quote (If the generator will not be tripped improperly, the system will remain without colapsing)

There are a few vague statements on the report that make difficult to know the specific detail of the cause of the blackout post the SLG fault on the T. Line. Not sure if those long lines have series compensation and how the load is reconfigured after loss a large generation sources.

Appear to me that suddenly disconnecting a large load even with both lines in service, the system will be facing a great challenger to remain in service. With only one line in service, I was not surprised that the system collapsed.

Below is an attent to translate the sequence of the event described.

RE: Argentine grid collapse in Jun'19

Thanks everyone for the links- great reads. :)

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! Already a Member? Login


eBook - Integrating the Engineering Ecosystem
Aras Innovator provides multiple options for integrating data between systems, depending on the scenario. Utilizing the right approach to meet specific business requirements is vital. These needs range from authoring tools, federating data from various and dissimilar databases, and triggering processes and workflows. Download Now
Research Report - Simulation-Driven Design for SOLIDWORKS Users
In this engineering.com research report, we discuss the rising role of simulation and the paradigm shift commonly called the democratization of simulation. In particular, we focus on how SOLIDWORKS users can take advantage of simulation-driven design through two analysis tools: SOLIDWORKS Simulation and 3DEXPERIENCE WORKS. Download Now
White Paper - Industry 4.0 and the Future of Engineering Education
With industries becoming more automated, more tech-driven and more complex, engineers need to keep their skills and knowledge up to date in order to stay on top of this wave—and to be prepared for the Industry 4.0 future. The University of Cincinnati offers two online Master of Engineering degree programs designed specifically for practicing engineers. Download Now
eBook - The Design Gridlock Manifesto
In this eBook, you’ll learn 6 ways old CAD technology slows your company down and hear how design teams have put those problems to rest. “The Design Gridlock Manifesto” shares first-hand modern CAD experiences from 15 companies around the world. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close