Block Diagram; Overcurrent Protection - ABB REF610 Technical Reference Manual

1MRS755535
5.1.4.
5.1.4.1.
Switchgroups for
digital inputs
SGB1...5
Reset 1 1)
Reset 2 2)
Reset 3 3)
Setting group
Time sync
DI1
Ext Trip
Digital inputs
DI2
Ext Trig CBFAIL
DI3
Optional digital
Ext Trig Trip lockout
DI4
inputs
Ext Arc
DI5
(I/O module)
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
I
a
I
b
I
c
Analog inputs
I
n
Optional arc detector inputs
Light sensor input1
(Communication module)
Light sensor input2
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 memorized values unlatch output
contacts by the digital input signal
Fig. 5.1.4.1.-1

Block diagram

5.1.4.2.
Feeder Protection Relay
Technical Reference Manual - ANSI Version
Protection
Block diagram
Protection relay functions
51P
Pickup
Block Trip
50P-1
Pickup
Double
Block Trip
50P-2
Pickup
Trip
I
Ia
Ib
Ic
In
Io
Trip lockout
Ext Trig
Reset
Trip lockout
PO3
79, AR
Autoreclose
CB Pos Open
CB Pos Closed
AR Inhibit
CB CloseDisable
Ext AR Initiation
51P Pickup
51P Trip
50P-1 Trip
51P-2 Trip
51N Pickup
51N Trip
50N Pickup
46 Trip
49 Alarm
49 Trip
Arc Trip
CBFAIL
SGF1...SGF5
Disturbance recorder, DR
(4 analog + up to 8 digital channels)
I
DI1
a
DI2
I
b
DI3
I
c
DI4
I
n
DI5
;

Overcurrent protection

The non-directional overcurrent protection detects overcurrent caused by phase-to-
phase and phase-to-ground short circuits.
Switchgroups for
programmable LEDs
SGL1...8
51N
51P Trip
50P-1 Trip
51P-2 Trip
Pickup
51N Trip
Block Trip
50N Trip
50N
46 Trip
49 Alarm
49 Trip
Pickup
Double
Trip lockout
Trip
Block
Definite Trip Alarm
Shot Due
46
AR Lockout
CB Pos Open
CB Pos Closed
Pickup
DI1
Trip
Block
DI2
49 DI3
DI4
DI5
Pickup
Arc Trip
Block Trip
Arc light output
CB Fail Trip
CBFAIL
DR Triggered
Switchgroups for
PO1
output contacts
EXT TRIG PO2
SGR1...5
Arc 50, Arc 50N
51P Pickup
51P Trip
Light1
50P-1 Pickup
Light2 Light output
50P-1 Trip
Ext Arc Trip
51P-2 Pickup
51P-2 Trip
51N Pickup
51N Trip
Open CB Cmd
50N Pickup
Close CB Cmd
CB Reclose Failed 50N Trip
Shot Due 46 Pickup
Definite Trip Alarm
46 Trip
AR Lockout
49 Alarm
Block 51P
49 Trip
Block 50P-1
Block 50P-2 Ext Trip
Block 51N
Open CB Cmd
Block 50N
Close CB Cmd
Definite T r ip Alarm
CB Reclose Failled
Shot Due
AR Lockout
Arc T r ip
Arc light output
T r ip lockout
Warning
51P Pickup
IRF TARGET
51P Trip
PICKUP/ALARM TARGET
50P-1 Pickup
TRIP TARGET
50P-1 Trip
51P-2 Pickup
51P-2 Trip
51N Pickup
51N Trip
50N Pickup
50N Trip
46 Pickup
46 Trip
49 Pickup
49 Trip
REF610 REF610
LED1
LED2
LED3
LED4
Programmable
LED5 LEDs
LED6
LED7
LED8
PO1
PO2
Digital outputs
PO3
(Output contacts)
SO1
SO2
SO3 Optional digital
outputs
SO4
(I/O module)
SO5
IRF
IRF target LED (green)
Pickupt/Alarm (yellow) and
trip (red) target LEDs
A060526
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