Path Rating Catalog 2013 - Western Electricity Coordinating Council

Revised February 2005
61. Lugo - Victorville 500 kV Line
Accepted Rating
Existing Rating
Other
Location:
Definition:
500 kV transmission line from Victorville substation in LDWP’s service area
to Lugo substation in SCE’s service area
Line is owned independently from the midpoint of the line to the respective
service areas of SCE and LDWP. Metered at Victorville 500 kV substation.
Transfer Limit: Victorville to Lugo: 2400 MW
Lugo to Victorville: 900 MW
Critical
Disturbance
that limits the
transfer
capability:
When:
System
Conditions:
Study Criteria:
Remedial
Actions
Required:
Formal
Operating
Procedure:
Allocation:
Interaction
w/Other
Transfer Paths:
Contact Person:
The 2400 MW rating is limited by the loss of the Mohave-Lugo or Eldorado-
Lugo 500 kV lines in SCE’s service territory. The 900 MW rating is limited
due to thermal limitations on Inyokern-Searles 115 kV line under N-0
conditions.
The Victorville-Lugo rating was established in 2001 and the Lugo-Victorville
rating was established in 1995.
Victorville to Lugo flows are high during high IPPDC and high EOR/WOR
flows. Lugo to Victorville flows are high with low flows on EOR/WOR and
low flows on the IPPDC.
WECC Reliability Criteria
None
Flows on Victorville-Lugo may be limited depending on flows across the
Sylmar auto-transformer banks. A dynamic nomogram has also been put inplace
to monitor the actual flows on Eldorado-Lugo, Mohave-Lugo, Palo
Verde-Devers and Palo Verde-N. Gila lines such that the outage of any one of
these lines will not load the Victorville-Lugo line above the emergency rating
of 2600 MVA.
The flows are allocated between LDWP, SCE, Anaheim and Riverside.
Flow on this path is dependent on internal generation in SCE, and flows on
IPPDC, EOR/WOR, Midway-Vincent 500 kV lines and north of Lugo paths.
Steven E. Mavis
Southern California Edison
Three Innovation Way
Pomona, CA 91768
(909) 274-1587
(909) 274-1601 - fax
steven.mavis@sce.com
John Burnett
Los Angeles Dept. Of Water &
Power
P. O. Box 111, Room 1246
111 N. Hope Street
Los Angeles, CA 90051
(213) 367-1744
(213) 367-5132
john.burnett@ladwp.com
PART VI Item 1-164