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TCP
Transmission control protocol
TCP/IP
Communication protocol
TEMP, temp
Temperature
THD
Total harmonic distortion
TI
Manufacturer internal product designation code
TOC
Time overcurrent
TOV
Time overvoltage
TRANS
Transient
TRN
Transition
TX (Tx)
Transmit, transmitter
txt
Text
UC
Undercurrent
UL
Underwriters Laboratories
UMZ
DEFT (definite time tripping characteristic)
URTD
Universal resistance-temperature detector
USB
Universal serial bus
UTC
Ultimate trip current
V
Volts
V0
Zero sequence voltage
V1
Positive sequence voltage
V2
Negative sequence voltage
VA
Phase A voltage
VAB
Phase A to B voltage
Vac / V ac
Volts alternating current
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
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EMR-3MP0
11 Appendix
11.2 Glossary