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Path Rating Catalog 2013 - Western Electricity Coordinating Council

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Added January <strong>2013</strong><br />

III-7. Bridger/Anticline West <strong>Path</strong> (Post<br />

Gateway)<br />

Accepted <strong>Rating</strong><br />

Existing <strong>Rating</strong><br />

Other<br />

Location: New 500 kV and 345 kV transmission lines in southwest Wyoming and<br />

southeastern Idaho.<br />

Definition: Sum of flows on the following lines:<br />

Line<br />

Metered End<br />

Anticline – Populus 500 kV<br />

Anticline<br />

Jim Bridger-Three Mile Knoll 345 kV<br />

Jim Bridger<br />

Jim Bridger-Populus 345 kV #1<br />

Jim Bridger<br />

Jim Bridger-Populus 345 kV #2<br />

Jim Bridger<br />

Transfer Limit: East to West : 4100 MW<br />

West to East : Not defined<br />

Critical Loss of the Aeolus-Anticline 500 kV line. This outage requires tripping<br />

Disturbance 600 MW of wind generation and capacitor switching in Wyoming.<br />

that limits the Following this critical outage, and generating tripping, transfer capabilities<br />

transfer on this path are limited by loading on the Miners-Platte 230 kV line.<br />

capability:<br />

When December 2010<br />

System Requires the Gateway South – Stage 1facilities in order to reach the Stage 1<br />

Conditions: rating on the Bridger/Anticline West path.<br />

Study Criteria:<br />

Remedial<br />

Action<br />

Required:<br />

Formal<br />

Operating<br />

Procedure:<br />

Allocation:<br />

Interaction<br />

w/Other<br />

Transfer <strong>Path</strong>s:<br />

Contact<br />

Person:<br />

NERC/WECC standards.<br />

Trip wind generation in Eastern Wyoming.<br />

Switch capacitors in Eastern Wyoming and Central Utah.<br />

TBD<br />

100% PacifiCorp<br />

Based on Gateway West path rating studies the following Nomogram<br />

relationship have been defined: JB/AC West vs. Aeolus South , JB/AC<br />

West vs. <strong>Path</strong> C (<strong>Path</strong> 20), JB/AC West vs. Bonanza West (<strong>Path</strong> 33), JB/AC<br />

West vs. PacifiCorp Internal <strong>Path</strong>s (Monument-Naughton, RS/Firehole<br />

West)<br />

Craig Quist<br />

PacifiCorp<br />

1407 W. North Temple - Suite 275<br />

Salt Lake City, UT 84140<br />

(801) 220-4264<br />

(801) 220-2842-fax<br />

craig.quist@pacificorp.com<br />

PART VI Item 1-227

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