Acronyms Dynamics of Disturbance
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ACRONYMS Acronyms 2/9/16 Acronym Expansion A Symbol for Ampere ABA Adjacent Balancing Authority AC Alternating Current ACB Air Circuit Breaker ACE Area Control Error ACSR Aluminum Conductor Steel Reinforced AEP American Electric Power AFC Available Flowgate Capability AGC Automatic Generation Control AIC Alternative Interpersonal Communication AIE Area Interchange Error ALR Adequate Level of Reliability ANSI American National Standards Institute AS Ancillary Services ASCC Alaskan System Coordination Council ASCII American Standard Code for Information Interchange ASD Adjustable Speed Drive ATC Available Transfer Capability ATF After The Fact AVR Automatic Voltage Regulator B Symbol for frequency Bias β Symbol for frequency response characteristic BA Balancing Authority BAAL Balancing Area ACE Limit BAL Balancing Copyright Operations Training Solutions 2015 1 Acronyms 2/9/16 Acronym Expansion BCP Blackstart Capability Plan BES Bulk Electric System BPA Bonneville Power Administration BPD Bushing Potential Device BPS Bulk Power System BSR Black Start Resource BSU Black Start Unit BTU British Thermal Unit C Symbol for Capacitance CA Contingency Analysis CB Circuit Breaker CBM Capacity Benefit Margin CCA Critical Cyber Asset CCPD Capacitively Coupled Potential Device CCVT Capacitively Coupled Voltage Transformer CERTS Consortium for Electric Reliability Technology Solutions CF Compliance Factor CFC Constant Frequency Control CIP Critical Infrastructure Protection CME Coronal Mass Ejection CNI Constant Net Interchange COM Communications COU Commonly Owned Unit CPC Control Performance Criteria CPM Control Performance Measure CPS Control Performance Standard Copyright Operations Training Solutions 2015 2 Acronyms 2/9/16 Acronym Expansion CPS1 Control Performance Standard 1 CPS2 Control Performance Standard 2 COI California Oregon Interface CS Circuit Switcher CSC Current Source Converter CSV Comma Separated Value CT Combustion Turbine CT Current Transformer CVT Capacitive Voltage Transformer D Load Damping Formula DC Direct Current DCB Directional Comparison Blocking DCLM Direct Control Load Management DCS Disturbance Control Standard DCU Directional Comparison Unblocking DDR Dynamic Disturbance Recorder DF Distribution Factor DME Disturbance Monitoring Equipment DOE Department of Energy DP Distribution Provider DSM Demand-Side Management DUTT Direct Under-reaching Transfer Trip 1I Symbol used in CPS1 & BAAL for the 1-minute average targeted frequency error 10 Symbol used in CPS2 for the 10-minute average targeted frequency error EA Emergency Assistance EACMS Electronic Access Control or Monitoring Systems Copyright Operations Training Solutions 2015 3 Acronyms 2/9/16 Acronym Expansion EAP Electronic Access Point EAR Event Analysis Report ED Economic Dispatch EDE Energy Deficient Entity EEA Energy Emergency Alert EEI Edison Electric Institute EHC Electro Hydraulic Control EHV Extra High Voltage EIR Electric Industry Registry EM Electromechanical EMF Electro Magnetic Field EMF Electro Motive Force EMS Energy Management System EOP Emergency Operation & Preparedness EPRI Electric Power Research Institute ERCOT Electric Reliability Council of Texas ERO Electric Reliability Organization ESP Earth Surface Potential ESP Electronic Security Perimeter ETC Existing Transmission Commitments EWG Exempt Wholesale Generator F Symbol for Farad F Symbol for Frequency FA Frequency Actual FR Frequency Resonance FS Frequency Scheduled Copyright Operations Training Solutions 2015 4 Acronyms 2/9/16 Acronym Expansion FAC Facilities FAL Frequency Abnormal Limit FERC Federal Energy Regulatory Commission FNET Frequency monitoring NETwork FPA Federal Power Act FRC Frequency Response Characteristic FRCC Florida Reliability Coordinating Council FRL Frequency Relay Limit FRM Frequency Response Measure FRO Frequency Response Obligation FRSG Frequency Response Sharing Group FTL Frequency Trigger Limit FTR Firm Transmission Rights G Symbol for Giga or 109 GCB Gas Circuit Breaker GIC Geomagnetic Induced Currents GLDF Generator to Load Distribution Factor GMD Geo Magnetic Disturbance GO Generation Owner GPE Generation Providing Entity GOP Generation Operator GSF Generation Shift Factor GSU Generator Step Up GW Giga Watt GWh Giga Watt hour H Symbol for Henry. Symbol for inertial constant. Copyright Operations Training Solutions 2015 5 Acronyms 2/9/16 Acronym Expansion HBA Host Balancing Authority HDF Harmonic Distortion Frequency HDV Harmonic Distortion Voltage HIR High Initial Response HP High Pass HP High Pressure HS High Side HV High Voltage HVDC High Voltage Direct Current HZ Hertz I Symbol for current IME Interchange Metering Error IA Interchange Authority IC Interchange Coordinator ICCP Inter Control center Communications Protocol IDC Interchange Distribution Calculator IEEE Institute of Electrical & Electronics Engineers IFRO Interconnection Frequency Response Obligation IME Interchange Metering Error INT Interchange IOS Interconnected Operations Services IOU Investor Owned Utilities IP Intermediate Pressure IPP Independent Power Producer IR Inertia Ratio IRO Interconnection Reliability Operations Copyright Operations Training Solutions 2015 6 Acronyms 2/9/16 Acronym Expansion IROL Interconnection Reliability Operating Limit IROL TV Interconnection Reliability Operating Limit TV IS Interchange Schedule ISDN Integrated Services Digital Network ISN Interregional Security Network ISO Independent System Operator IT Interchange Transaction IT Instrument Transformer ITC International Transmission Company ITS Interchange Transaction Scheduler JOU Jointly Owned Unit k Symbol for Kilo or 103 kV kilo Volt kVAr kilo Volt Amperes reactive kW kilo Watt kWh kilo Watt hours L Symbol for inductance LC-CSC Line Commutated Current Sourced Converter LDC Load Drop Compensation LED Light Emitting Diode LF Load Forecast LLR Local line Loading Relief LOF Loss Of Field LP Low Pressure LS Low Side LSE Load Serving Entity Copyright Operations Training Solutions 2015 7 Acronyms 2/9/16 Acronym Expansion LSF Load Shift Factor LTC Load Tap Changer LV Low Voltage M Symbol for Mega or 106 MAV Mercury Arc Valve MCP Market Clearing Price MEL Minimum Excitation Limiter MHO Ohm spelled backwards (type of distance relay) MISO Midwest Independent System Operator MMI Man Machine Interface MOD Modeling MOD Motor Operated Disconnect MRO Midwest Reliability Organization MSC Mechanically Switched Capacitor MVA Mega Volt Ampere MVAr Mega Volt Ampere reactive MW Mega Watt MWh Mega Watt hour N-1 Normal – 1 NAESB North American Energy Standards Board NARUC National Association of Regulatory Utility Commissioners NASPI North American Synchro Phasor Initiative NATC Non-recallable Available Transfer Capability NERC North american Electric Reliability Corporation NESC National Electricity Safety Code NIA Net Interchange Actual Copyright Operations Training Solutions 2015 8 Acronyms 2/9/16 Acronym Expansion NIS Net interchange Scheduled NIST National Institute of Standards and Technology NL Native Load NLTC No Load Tap Changer NOAA National Oceanic and Atmospheric Administration NOPR Notice of Proposed Rule Making NPCC Northeast Power Coordinating Council NRC Nuclear Regulatory Commission NRCan Natural Resources Canada NUG Non-Utility Generator NYPP New York Power Pool OASIS Open Access Same time Information Service OATT Open Access Transmission Tariff OLTC Off Load Tap Changer OOS Out Of Step OPF Optimal Power Flow OSL Operating Security Limit OTC Operating Transfer Capability OTDF Outage Transfer Distribution Factor P Symbol for Active Power (MW) P-V Power versus Voltage P.U. Per Unit PA Planning Authority PACS Physical Access Control Systems PAR Phase Angle Regulator PC Planning Coordinator Copyright Operations Training Solutions 2015 9 Acronyms 2/9/16 Acronym Expansion PCGC Personnel Certification Governance Committee PCA Protected Cyber Assets PF Power Factor PJM Pennsylvania Jersey Maryland PLC Power Line Carrier PLC Programmable Logic Controller PMG Permanent Magnet Generator PMU Phasor Measurement Unit POD Point Of Delivery POR Point Of Receipt POTT Permissive Over-reaching Transfer Trip PRC Protection and Control PS Personnel Subcommittee PSE Purchasing Selling Entity PSI Pounds per Square Inch PSMP Protection System Maintenance Program PSP Physical Security Perimeter PSIG Pounds per Square Inch Gauge PSP Physical Security Perimeter PSS Power System Stabilizer PST Phase Shifting Transformer PT Potential Transformer PTDF Power Transfer Distribution Factor PTP Point to Point Transmission Service PUC Public Utility Commission PUHCA Public Utility Holding Company Act of 1935 Copyright Operations Training Solutions 2015 10 Acronyms 2/9/16 Acronym Expansion PURPA Public Utility Regulatory Policies Act of 1978 PUTT Permissive Under-reaching Transfer Trip PX Power Exchange Q Quality Q Symbol for Mvar QF Qualifying Facility R Symbol for Resistance RAAI Reliability Adjustment Arranged Interchange RAS Remedial Action Scheme RATC Recallable Available Transfer capability RBC Reliability Based Control RC Reliability Coordinator RCIS Reliability Coordinator Information System RE Regional Entity RE Reliability Entity RF Reactive Factor RFC Reliability First Corporation RFI Request for Interchange RMS Root Mean Square ROP Rules of Procedure ROW Right Of Way RP Resource Planner RPM Revolutions Per Minute RRO Regional Reliability Organization RRSG` Regulation Reserve Sharing Group RSG Reserve Sharing Group Copyright Operations Training Solutions 2015 11 Acronyms 2/9/16 Acronym Expansion RTCA Real Time Contingency Analysis RTG Regional Transmission Group RTO Regional Transmission Organization RTU Remote Terminal Unit S Symbol for MVA SAC Standards Authorization Committee SCADA Supervisory Control And Data Acquisition SC-VSC Self Commutated Voltage Sourced Converter SCR Short Circuit Ratio SCR Silicon Controlled Rectifier SE State Estimator SERC Southeastern Electric Reliability Council SESC Space Environmental Service Center SF6 Symbol for Sulfur hexa-Fluoride gas SIL Surge Impedance Loading SMD Solar Magnetic Disturbance SMD Standard Market Design SMS Single Most Severe SO System Operator SOE Sequence of Events SOL System Operating Limit SPP Southwest Power Pool SPS Special Protection System SSR Sub Synchronous Resonance STATCOM Static Compensator SVC Static Var Compensator Copyright Operations Training Solutions 2015 12 Acronyms 2/9/16 Acronym Expansion SVS Static Var System SWPC Space Weather Prediction Center T&D Transmission and Distribution TCF Total Capacity of Facilities TCR Thyrister Controlled Reactor TDF Transmission Distribution Factor THD Total Harmonic Distortion TLB Tie Line frequency Bias TLR Transmission line Loading Relief TOP Transmission Operator TO Transmission Owner TOP Transmission Operations TOU Time Of Use TOV Transient Over Voltage TP Transmission Planner TRE Texas Reliability Entity TSP Transmission Service Provider TPL Transmission Planning TRM Transmission Reliability Margin TRMID Transmission Reliability Margin Implementation Document TSA Transient Stability Analysis TSC Thyrister Switched Capacitor TSIN Transmission System Information Network (Used as the EIR) TTC Total Transfer Capability Copyright Operations Training Solutions 2015 13 Acronyms 2/9/16 Acronym Expansion TV Time Value TVA Tennessee Valley Authority TVMP Transmission Vegetation Management Program UC Unit Commitment UF Under Frequency UFLS Under Frequency Load Shedding UHV Ultra High Voltage ULTC Under Load Tap Changing UPS Uninterruptible Power Supply URAL Under excited Reactive Ampere Limit UTC Universal Coordinated Time (French acronym) UVLS Under Voltage Load Shedding V Symbol for Volt VA Volt Ampere VAR Voltage and Reactive VSC Voltage Sourced Converter V-Q Voltage versus Q (for reactive power studies) VT Voltage Transformer W Symbol for Watt WACS Wide Area Control System WAMS Wide Area Monitoring System WebSAS Web based Security Analysis System WECC Western Electricity Coordinating Council WEQBPS Wholesale Electric Quadrant Business Practice Standard Copyright Operations Training Solutions 2015 14 Acronyms 2/9/16 Acronym Expansion WART Wide Area Reliability Tool XC Transmission line capacitive reactance XL Transmission line inductive reactance YTD Year To Date Z Symbol for impedance Copyright Operations Training Solutions 2015 15
