ABBREVIATIONS
F35 MULTIPLE FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
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PUTT
Permissive Under-reaching Transfer Trip
PWM
Pulse Width Modulated
PWR
Power
QUAD
Quadrilateral
R
Rate, Reverse
RA
Registration Authority
RCA
Reach Characteristic Angle
REF
Reference
REM
Remote
REV
Reverse
R-GOOSE
Routable GOOSE
RI
Reclose Initiate
RIP
Reclose In Progress
RGT BLD
Right Blinder
RMA
Return Materials Authorization
RMS
Root Mean Square
ROCOF
Rate of Change of Frequency
ROD
Remote Open Detector
RRTD
Remote Resistance Temperature Detector
RST
Reset
RSTR
Restrained
RTD
Resistance Temperature Detector
RTU
Remote Terminal Unit
RX (Rx)
Receive, Receiver
s
second
S
Sensitive
SAT
CT Saturation
SBO
Select Before Operate
SCADA
Supervisory Control and Data Acquisition
SCC
Serial Communication Controller
SCD
System Configuration Description
SCL
Substation Configuration Language
SCEP
Simple Certificate Enrollment Protocol
SEC
Secondary
SEL
Select / Selector / Selection
SENS
Sensitive
SEQ
Sequence
SFTP
Secure Shell (SSH) File Transfer Protocol, Secure
File Transfer Protocol
SIR
Source Impedance Ratio
SNTP
Simple Network Time Protocol
SRC
Source
SSB
Single Side Band
SSEL
Session Selector
STATS
Statistics
SUPN
Supervision
SUPV
Supervise / Supervision
SV
Supervision, Service
SYNC
Synchrocheck
SYNCHCHK
Synchrocheck
T
Time, transformer
TC
Thermal Capacity
TCP
Transmission Control Protocol
TCU
Thermal Capacity Used
TD MULT
Time Dial Multiplier
TEMP
Temperature
TFTP
Trivial File Transfer Protocol
THD
Total Harmonic Distortion
TMR
Timer
TOC
Time Overcurrent
TOV
Time Overvoltage
TRANS
Transient
TRANSF
Transfer
TSEL
Transport Selector
TUC
Time Undercurrent
TUV
Time Undervoltage
TX (Tx)
Transmit, Transmitter
U
Under
UC
Undercurrent
UCA
Utility Communications Architecture
UDP
User Datagram Protocol
UL
Underwriters Laboratories
UNBAL
Unbalance
UR
Universal Relay
URC
Universal Recloser Control
.URS
Filename extension for settings files
UV
Undervoltage
V/Hz
Volts per hertz
V_0
Zero Sequence voltage
V_1
Positive Sequence voltage
V_2
Negative Sequence voltage
VA
Phase A voltage
VAB
Phase A to B voltage
VAG
Phase A to Ground voltage
VARH
Var-hour voltage
VB
Phase B voltage
VBA
Phase B to A voltage
VBG
Phase B to Ground voltage
VC
Phase C voltage
VCA
Phase C to A voltage
VCG
Phase C to Ground voltage
VF
Variable Frequency
VIBR
Vibration
VT
Voltage Transformer
VTFF
Voltage Transformer Fuse Failure
VTLOS
Voltage Transformer Loss Of Signal
WDG
Winding
WH
Watt-hour
w/ opt
With Option
WGS
World Geodetic System
WRT
With Respect To
X
Reactance
XDUCER
Transducer
XFMR
Transformer
Z
Impedance, Zone