Alstom MiCOM P127 - Page 19

Technical Guide P12y/EN FT/D22
User Guide
MiCOM P125/P126/P127 Page 17/108
Wattmetric Pe/IeCOS protection
TEXT P125 P126 P127 Information
Pe/IeCos> X X X 1
st
alarm threshold earth fault overpower/IeCos
(wattmetric)
tPe/IeCos> X X X 1
st
trip threshold earth fault overpower/IeCos
(wattmetric)
Pe/IeCos>> X X X 2
nd
alarm threshold earth fault
overpower/IeCos (wattmetric)
tPe/IeCos>> X X X 2
nd
trip threshold earth fault overpower/IeCos
(wattmetric)
Negative phase sequence overcurrent protection
TEXT P125 P126 P127 Information
I2> X X 1
st
alarm threshold negative sequence
overcurrent
tI2> X X 1
st
trip threshold negative sequence overcurrent
I2>> X X 2
nd
alarm threshold negative sequence
overcurrent
tI2>> X X 2
nd
trip threshold negative sequence overcurrent
I2>>> X X 3
rd
alarm threshold negative sequence
overcurrent
tI2>>> X X 3
rd
trip threshold negative sequence overcurrent
Thermal protection
TEXT P125 P126 P127 Information
Therm Trip X X Thermal trip overload threshold
Three phase undercurrent protection
TEXT P125 P126 P127 Information
I< X X Alarm threshold undercurrent
tI< X X Trip threshold undercurrent
Overvoltage protection
TEXT P125 P126 P127 Information
U> X 1
st
alarm threshold overvoltage
tU> X 1
st
trip threshold overvoltage
U>> X 2
nd
alarm threshold overvoltage
tU>> X 2
nd
trip threshold overvoltage