ABB REC 561 User Manual

ABB Network Partner AB
Auto-reclosing - Single- and/or
three-phase
Version 1.0-00
1MRK 580 170-XEN
Page 5 - 58
Fig. 1 Single-shot auto-reclosing at a permanent fault
2 Theory of operation
The auto-reclosing function first co-operates with the line protection func-
tions, the trip function, the circuit-breaker and the synchro-check func-
tion. It can also be influenced by other protection functions such as shunt
reactor protection through binary input signals, AR On/Off manual con-
trol. It can provide information to the disturbance and service report func-
tions, event recording, indications, and reclosing operation counters.
The reclosing counters can be read and reset on the built-in MMI:
Service Report
ARCounters
The auto-reclosing is a purely logical function that works with logical or
binary signals, logical operations, and timers.
(X80170-1)
Line
protection
Circuit
breaker
Auto-reclosing
function
Open
Fault duration AR open time for breaker
Fault duration
Closed
Operate time
Break time
Break time
Closing time
Resets
AR reset
Operate time
Set AR open time
Reclaim time
Start AR
Reclosing command
Close command
Operates
Fault
Operates Instat of fault
Resets
Contact close
Arc extinguishes
Contacts separate
Trip command

ABB REC 561 Specifications

General

Brand	ABB
Model	REC 561
Category	Touch terminals
Language	English