27
5.1.4.
Protection
5.1.4.1.
Block diagram
LED1
LED2
LED3
LED4
LED5
LED6
LED7
LED8
I
a
I
b
I
c
SGB1...5
I
n
SGL1...8
SGF1...SGF5
I
a
I
b
I
c
I
n
Ia
Ib
Ic
Io
51P
Trip
Arc 50, Arc 50N
Programmable
LEDs
(4 up to 8 digital channels)
The dashed line indicates optional functionality.
1) Clear targetsby the digital input signal
2) Clear targets and unlatch output contacts by the
digital input signal
3) Reset targets and memorizedvalues
;
unlatch output
contacts by the digital input signal
Optional digital
inputs
(I/O module)
Digital inputs
DI1
DI2
DI3
DI4
DI5
Switchgroups for
digital inputs
Protection relay functions
Analog inputs
Switchgroups for
programmable LEDs
Trip lockout
Definite Trip Alarm
Shot Due
AR Lockout
CB Pos Open
CB Pos Closed
DI1
DI2
DI3
DI4
DI5
Arc Trip
Arc light output
Reset 1 1)
Reset 2 2)
Reset 3 3)
Setting group
Time sync
Ext Trip
Ext Trig CBFAIL
Ext Trig Trip lockout
Ext Arc
Trip lockout reset
Block 51P
Block 50P-1
Block 51N
Block 50N
Block 46
AR Disable
CB Close Inhibit
CB Pos Open
CB Pos Closed
Ext AR Initiation
DI1
DI2
DI3
DI4
DI5
Trip
Trip
PO1
EXT TRIG
PO2
Block
Trip
Double
Block
Block
Pickup
Trip
Double
Block
Trip
Block
Trip
Autoreclose
CB Pos Open
CB Pos Closed
AR Inhibit
CB CloseDisable
Ext AR Initiation
Arc Trip
Open CB Cmd
Close CB Cmd
CB Reclose Failed
Shot Due
Definite Trip Alarm
AR Lockout
Block 51P
Block 50P-1
Block 50P-2
Block 51N
Block 50N
Trip lockout
Trip lockout
Ext Trig
Reset
PO3
Light output
Trip
Light1
Light2
Ext Arc
Light sensor input1
Light sensor input2
Optional arc detector inputs
(Communication module)
Disturbance recorder, DR
DR Triggered
PO1
PO2
PO3
SO1
SO2
SO3
SO4
SO5
IRF
SGR1...5
Digital outputs
(Output contacts)
IRF TARGET
PICKUP/ALARM TARGET
TRIP TARGET
IRF target LED (green)
Pickupt/Alarm (yellow) and
trip (red) target LEDs
Open CB Cmd
Close CB Cmd
Definite Trip Alarm
CB Reclose Failled
Shot Due
AR Lockout
Arc Trip
Arc light output
Switchgroups for
output contacts
Trip lockout
Optional digital
outputs
(I/O module)
Warning
51N
CBFAIL
50P-1
50N
50P-2
46
I
49
In
51P Trip
50P-1 Trip
51P-2 Trip
51N Trip
50N Trip
46 Trip
49 Alarm
49 Trip
79, AR
CBFAIL
51P Pickup
50P-1 Trip
51P-2 Trip
51N Pickup
50N Pickup
46 Trip
49 Alarm
49 Trip
51P Trip
51N Trip
51P Pickup
50P-1 Pickup
51P-2 Pickup
51N Pickup
46 Pickup
49 Pickup
49 Trip
51P Trip
51N Trip
50P-1 Trip
51P-2 Trip
50N Pickup
50N Trip
46 Trip
51P Pickup
50P-1 Pickup
51P-2 Pickup
51N Pickup
46 Pickup
49 Alarm
49 Trip
51P Trip
51N Trip
50P-1 Trip
51P-2 Trip
50N Pickup
50N Trip
46 Trip
Ext Trip
Pickup
Block
Pickup
Pickup
Pickup
Pickup
Pickup
CB Fail Trip
A060526
Fig. 5.1.4.1.-1
Block diagram
5.1.4.2.
Overcurrent protection
The non-directional overcurrent protection detects overcurrent caused by phase-to-
phase and phase-to-ground short circuits.
Feeder Protection Relay
Technical Reference Manual - ANSI Version
REF610
REF610
1MRS755535
Summary of Contents for RELION REF610
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