weccglossary12-9-2011.pdf

WECC Glossary Proposal THIS DOCUMENT IS CURRENTLY BEING UPDATED Legend: Green WECC-Defined Terms Blue – Existing Unofficial Terms in WECC Documents Table of Contents WECC Glossary of Terms........................................................................................................................ 2 Appendix 1: WECC Acronyms and Initialisms .......................................................................................... 7 NERC Application Categories for Standards ...................................................................................................................18 Appendix 2: Other WECC Terms ........................................................................................................... 19 Appendix 3: Unofficial WECC Terms ..................................................................................................... 29 Note: This document does not contain terms that are defined in the NERC Glossary of Terms Used in NERC Reliability Standards. To view the NERC glossary on NERC’s Web site, click here. As of April 20, 2010, the NERC Glossary includes a section of regional terms. WECC terms that are listed in the NERC Glossary are not included here. 1 WECC Glossary of Terms Term Acronym Approved Definition Documents Term Used In Type of Document Actual Interchange Register Meter Readings Values manually or electronically read directly from the meter located at the point of interconnection between two Adjacent Balancing Authorities. The meter could be measuring a tie-line point, remote load metered point, or a remote generation metered point for jointly owned generation. INT-BPS-002-0 (WECC Net Actual Interchange Reconciliation Process) Business Practice Actual Interchange Telemetered Value Hourly MWh data accumulated by telemetry, telephone, direct meter readings, etc. INT-BPS-002-0 (WECC Net Actual Interchange Reconciliation Process) Business Practice Adjacent Entity Entities Interfacing with common interchange metering or transmission facilities. Standard EMSWG- ST-001-1 — Reliability Data Exchange Criterion Adjacent Transmission Circuits Adjacent Transmission Circuits are two transmission circuits with separation between their center lines less than 250 feet at the point of separation with no Bulk Electric System circuit between them. Transmission circuits that cross, but are otherwise separated by 250 feet or more between their centerlines, are not Adjacent Transmission Circuits. TPL-1-WECC-CRT-2 System Performance Criteria Criterion 2 Term Acronym Approved Definition Documents Term Used In Type of Document Advanced They are a set of applications used for real-time power flow and contingency evaluations. The most common applications included in this group are: Network Topology Processor, State Estimator, Power Flow, and Contingency Evaluation. These applications receive status and measurement data from the local SCADA and other external sources to calculate the network topology and perform estimation to use as starting point for base case power flow and contingency evaluations. Standard EMSWG- ST-001-1 — Reliability Data Exchange Blackstart Resource A generating unit(s) and its associated set of equipment which has the ability to be started without support from the System or is designed to remain energized without connection to the remainder of the System, with the ability to energize a bus, meeting the Transmission Operator’s restoration plan needs for real and reactive power capability, frequency and voltage control, and that has been included in the Transmission Operator’s restoration plan Note: This definition has been approved by FERC to become effective concurrent with NERC Reliability Standard EOP-005-2, mid-2013. It becomes effective at the same time the definition of Blackstart Capability Plan is retired. WECC will immediately use the Blackstart Resource definition upon approval of this criterion.) EOP-007-WECC- CRT-1 Blackstart capability and Blackstart Resource Testing Plan Criterion Common Corridor Contiguous right-of-way or two parallel right-of-ways with structure centerline separation less than the longest span length of the two transmission circuits at the point of separation or 500 feet, whichever is greater, between the transmission circuits. This separation requirement does not apply to the last five spans of the transmission circuits entering into a substation. Name: TPL – (001 thru 004) – WECC – 1 – CR ─ System Performance Criteria Criterion Data Retrieval The rate at which data is requested. This standard does not require the data for Advanced Applications to be provided at a periodicity faster than 30 seconds. However, there may be situations that warrant a faster data exchange between two Entities. If a faster data exchange Standard EMSWG- ST-001-1 — Reliability Data Exchange Dynamic Data Data changing as the operating conditions of the power 。