Path Rating Catalog 2013 - Western Electricity Coordinating Council

Path Rating Catalog 2013 - Western Electricity Coordinating Council Path Rating Catalog 2013 - Western Electricity Coordinating Council

12.11.2014 Views

Revised January 2013 III-10. TOT 4A (Post-Gateway) PART VI Item 1-232

Added January 2013 III-10. TOT 4A (Post-Gateway) Location: Definition: Accepted Rating Existing Rating Southwest Wyoming Sum of the flows on the following transmission lines: Line Metered End Riverton-Wyopo 230 kV Riverton Spence-Mustang 230 kV Spence Windstar-Aeolus 230 kV #1 Windstar Windstar-Aeolus 230 kV #2 Windstar Dave Johnston-Aeolus 230 kV Dave Johnston Other Transfer Limit: Northeast to Southwest: 2175 MW Critical The outage of the proposed Aeolus-Anticline 500 kV line. Disturbance that limits the transfer capability: When: Technical Studies accepted 12/13/2010 System Conditions: Study Criteria: Remedial Actions Required: Formal Operating Procedure: Allocation: Interaction w/Other Transfer Paths: This rating is independent of transfer levels between major areas of WECC. Historically, the flows have all been northeast to southwest across the path. (Summary) System intact: • Per unit voltages between 0.95 p.u. and 1.05 p.u. • All lines and transformers loaded to less than continuous rating. Single contingency outage conditions: • Per unit voltages between 0.90 p.u. and 1.10 p.u. • All facilities loaded to less than 100% of emergency ratings. Remedial actions are required to achieve the rated transfer capacity. For certain N-1 & N-2 outages the Dave Johnston 230/115 kV transformer needs to be tripped.RAS schemes applicable to the West and South of Aeolus Path ratings. TBD PAC has the entire transfer capability of the path. None PART VI Item 1-233

Revised January <strong>2013</strong><br />

III-10. TOT 4A (Post-Gateway)<br />

PART VI Item 1-232

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