swat short circuit study group update
Download
Skip this Video
Download Presentation
SWAT Short Circuit Study Group Update

Loading in 2 Seconds...

play fullscreen
1 / 25

SWAT Short Circuit Study Group Update - PowerPoint PPT Presentation


  • 106 Views
  • Uploaded on

SWAT Short Circuit Study Group Update. May 10, 2006 Albuquerque, New Mexico. Short Circuit – System Reliability. Relay Misoperations – Fail to Operate or Operate When They Shouldn’t Equipment Damage due to Failure to Operate Relays

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' SWAT Short Circuit Study Group Update' - myra


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
swat short circuit study group update

SWAT Short Circuit Study Group Update

May 10, 2006

Albuquerque, New Mexico

short circuit system reliability
Short Circuit – System Reliability
  • Relay Misoperations – Fail to Operate or Operate When They Shouldn’t
  • Equipment Damage due to Failure to Operate Relays
  • Circuit Breakers and Other Equipment Failure because not Properly Rated
swat short circuit working group scwg accomplishments
SWAT Short Circuit Working Group (SCWG) Accomplishments
  • Webpage setup and linked to SWAT Website
  • Charter (Scope) Finalized
  • All SWAT Transmission Owners joined
  • 4 meetings held since starting in January
  • Monthly meeting schedule
  • Impedance Map Plan Developed
  • Working on Combining First Case
4 main areas of work
4 Main Areas of Work
  • Impedance Maps
  • Annual Operating Case
  • Common Study Methodologies
  • Annual Standards Review
meeting locations
Meeting Locations
  • January 26, 2006 – WAPA - Phoenix
  • February 16, 2006 – TEP/UES – Tucson
  • March 16, 2006 – NPC/SPPC – Las Vegas
  • April 20, 2006 – SRP – Phoenix
  • May 18, 2006 – SWRTA – Casa Grande
impedance maps work
Impedance Maps Work
  • Most Impedance Maps Are Out of Date
  • List of Items to be Placed On Maps Developed
  • A Single Set of Impedance Maps to be Generated
  • Requested SWAT to Develop WestConnect Funding of Impedance Map Generation
  • Only 2 WestConnect Members not Members of SWAT SCWG
member programs
Member Programs
  • APS - Cape
  • SRP – Aspen
  • WAPA – PTI and Aspen
  • TEP/Unisource – Aspen
  • SWTC – Aspen
  • IID – Aspen
  • EPE – Aspen
  • PNM – Aspen
  • NPC/SPPC – Aspen
dpv2 scwg findings
DPV2 SCWG Findings
  • 442 of 1481 buses with 10 A or higher difference
  • Some Transformers not Modeled as Transformers in the DPV2 SCWG PSS/E case
  • Type 2 Buses in PSS/E Do Not Stay Constant
combined case
Combined Case
  • Plan Developed
  • Conversions Currently being Checked
  • Zones for Members being Developed
  • Equivalents to be Checked
  • Cases to be Combined
future work
Future Work
  • Combine CCPG SCWG Case
  • Combine STEP SCWG Case (if developed)
  • Develop Common Methodologies
  • Review of Standards
  • Start on next Annual Case and Impedance Maps Update (refinements)
future refinements
Future Refinements
  • Add Mutual Coupling
  • Add Line Charging Capacitance
  • Add Motors
  • Check Transformer, Line, Shunt, Generator, and Load Data
potential load flow help
Potential Load Flow Help
  • Impedance Maps for Load Flow Operating Case
  • Possible WECC Evolution of Regional SCWGs
  • If WECC Bus Numbers Used Later, Import of More Accurate SC Case Data into Load Flow Cases
ad