NERC Acronyms Flashcards by Jesse Kimbler

Q

Q

A

Symbol for Reactive Power (MVAR)

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Q

V

A

Volt

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Q

Z

A

Symbol for Impedance

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Q

I

A

Current (Amps)

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Q

MW

A

Mega Watt

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Q

MVA

A

Mega Volt Ampere

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Q

Mvar

A

Mega volt ampere reactive

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Q

P

A

Symbol for Active Power (MW)

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Q

BES

A

Bulk Electric System

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Q

DCS

A

Disturbance Control Standard

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Q

BA

A

Balancing Authority

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Q

CPS

A

Control Performance Standard

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Q

AGC

A

Automatic Generation Control

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Q

MSSC

A

Most Severe Single Contingency

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Q

SOL

A

System Operating Limit

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Q

IROL

A

Interconnection Reliability Operation Limit

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Q

NIa

A

Actual Net Interchange

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Q

NIs

A

Scheduled Net Interchange

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Q

BAAL

A

Balancing Authority ACE Limits

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Q

Fa

A

Frequency Actual

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Q

Fs

A

Frequency Scheduled

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Q

RSG

A

Reserve Sharing Group

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Q

RC

A

Reliability Coordinator

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Q

ABA

A

Adjacent Balancing Authority

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ACE

Area Control Error

AFC

Available Flowgate Capability

AIE

Area Interchange Error

ATC

Available Transfer Capability

AVR

Automatic Voltage Regulator

BA

Balancing Authority

BSU

Black Start Unit

BUCC

Back Up Control Center

CB

Circuit Breaker

CBM

Capacity Benefit Margin

CF

Compliance Factor

CNI

Constant Net Interchange

CT

Combustion Turbine or Current Transformer

CVT

Capacitive Voltage Transformer

DME

Disturbance Monitoring Equipment

DSM

Demand Side Management

EDE

Energy Deficient Entity

EEA

Energy Emergency Alert

EMS

Energy Management System

ERO

Electric Reliability Organization

ETC

Existing Transmission Commitments

FERC

Federal Energy Regulatory Comission

FIDVR

Fault-Induced Delayed Voltage Recovery

FRC

Frequency Response Characteristic

FRM

Frequency Response Measure

FRO

Frequency Response Obligation

FRSG

Frequency Response Sharing Group

FRSG

Frequency Response Sharing Group

FTL

Frequency Trigger Limit

GMD

Geo Magnetic Disturbance

GO

Generation Owner

GOP

Generation Operator

GSF

Generator Shift Factor

ICCP

Inter-control Center Communication Protocol

IROL

Interconnection Reliability Operating Limit

ISN

Interregional Security Network

LOF

Loss Of Field

LSE

Load Serving Entity

LTLD

Long Term / Large Disturbance Voltage Instability

LTSD

Long Term / Small Disturbance Voltage Instability

NERC

North American Electric Reliability Corporation

OASIS

Open Access Same time Information Service

OLTC

Off Load Tap Changer

OOS

Out Of Step

p.u.

per unit (Nominal voltage on system expressed as a decimal percentage)

PC

Planning Coordinator

PF

Power Factor

PFC

Primary Frequency Control

PSE

Purchasing Selling Entity

PST

Phase Shifting Transformer

PT

Potential Transformer

RACE

Reporting ACE (Average ACE over 1 minute period)

RAS

Reliability Assessment Subcommittee

RCIS

Reliability Coordinator Information System

RFI

Request For Interchange

ROW

Right Of Way

RRO

Regional Reliability Organization

RTA

Real Time Assessment

RTU

Remote Terminal Unit

SCADA

Supervisory Control And Data Acquisition

SIL

Surge Impedance Loading

SO

System Operator

STLD

Short Term / Large Disturbance Voltage Instability

SVC

Static Var Compensator

TO

Transmission Owner

TOP

Transmission Operator

TOV

Transient Over Voltage

TRM

Transmission Reliability Margin

TSP

Transmission Service Provider

TTC

Total Transfer Capability

UF

Under Frequency

UFLS

Under Frequency Load Shedding

ULTC

Under Load Tap Changing

UPS

Uninterruptible Power Supply

URAL

Under-excited Reactive Ampere Limit

UTC

Universal Coordinate Time

UVLS

Under Voltage Load Shedding

V-Q

Voltage versus Q (for reactive power studies)

VAR

Volt Ampere Reactive

VT

Voltage Transformer

β (Beta)

Symbol for Frequency Response Characteristic

TTC

Total Transfer Capability

TRM

Transmission Reliability Margin

TLR

Transmission Loading Relief

IDC

Interchange Distribution Calculator

PTDF

Power Transfer Distribution Factor

SCED

Security Constrained Economic Dispatch

LTE

Long Term Emergency

STE

Short Term Emergency

SE

State Estimator

TERM

Transmission Equipment Ratings Monitor