ABB REL 356

ABB REL 356 Current Differential Protection
ii
Glossary
DSBL Disable
DTT Direct transfer trip
DTYP Distance unit type
EEPROM Electrically erasable, read-write non-volatile memory
EPROM Ultraviolet erasable, read-only memory
FANG Fault impedance angle
FDAT Trigger for storing fault target data
FDOG Ground directional unit
FDOP Phase directional unit
FEPH Bit error
FOLO Follower mode
FREQ Rated frequency
FTYP Fault type
GANG Line zero sequence impedance angle
I0 Zero sequence current component
IA Phase A current
IAH High set current phase A
IB Phase B current
IBH High set current phase B
IC Phase C current
ICH High set current phase C
IDER Unit ID error
IE Very low set overcurrent unit
IGH High set ground overcurrent
IGL Low set ground overcurrent unit
ILTS IL trip supervision
IOM Medium set ground overcurrent unit
IPH High set phase overcurrent
IPL Low set phase overcurrent unit
IT Composite current
ITL Local, filtered composite current
ITR Remote composite current
KBPS Communication speed
LDFL Lead/follower mode
LDT Local delay timer
LEAD Lead mode
LED Light emitting diode
LOC Local
LOI Loss of current
LOPB Loss of potential block
LP Pre-fault load angle
LPBK Loopback
MLDT Measured communication channel delay
NODM No delay measurement
NORB No reclose block
NORM Normal, error free channel operation
OBKT Open breaker trip
OP Operate quantity
2-16
3-12
4-5
2-3
2-3
2-16
3-5
3-13
3-13
2-15
3-11
3-4
2-16
3-13
4-9
2-15
2-16
2-15
2-16
2-15
2-16
2-18
3-7
3-7
3-7
3-6
3-14
3-7
3-7
1-7
1-7
1-7
3-12
3-11
3-11
3-11
2-4
2-15
2-15
3-13
2-17
3-12
2-15
2-18
3-22
2-18
2-16
6-4