Feature
3
distance protection (85-21,21N)
Tele-protection scheme based on
dedicated earth fault protection
(85-67N)
Overcurrent protection (50, 51, 67)
Earth fault protection (50N, 51N,
67N)
Emergency/backup overcurrent
protection (50, 51)
Emergency/backup earth fault
protection (50N, 51N)
Switch-onto-fault protection
(50SOTF)
Overload protection (50OL)
Overvoltage protection (59)
Undervoltage protection (27)
Circuit breaker failure protection
(50BF)
Poles discordance protection
(50PD)
Dead zone protection (50DZ)
STUB protection (50STUB)
Synchro-check and energizing
check (25)
Auto-reclosing function for single-
and/or three-phase reclosing (79)
Voltage transformer secondary
circuit supervision (97FF)
Current transformer secondary
circuit supervision
Self-supervision to all modules in the
IED
Complete IED information recording:
tripping reports, alarm reports, startup
reports and general operation reports.
Any kinds of reports can be stored up to
2000 and be memorized in case of
power disconnection
Remote communication
Tele-protection contacts for power
line carrier protection interface
Up to two fiber optical remote
communication ports for protection
function, like tele-protection, used
up to 100kM single–mode optical
fiber cable
External optical/electrical converter,
which support communication
through SDH or PCM, for G.703
(64kbit/s) and G.703E1 (2048kbit/s)
Up to three electric /optical Ethernet
ports can be selected to communicate
with substation automation system by
IEC61850 or IEC60870-5-103 protocols
Up to two electric RS-485 ports can be
selected to communicate with substation
automation system by IEC60870-5-103
protocol
Time synchronization via network
(SNTP), pulse and IRIG-B mode
Configurable LEDs (Light Emitting
Diodes) and output relays satisfied users’
requirement
Versatile human-machine interface
Multifunctional software tool for setting,
monitoring, fault recording analysis,
configuration, etc.
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