Automatic Reclosing - Siemens SIPROTEC 4 Manual

4.17

Automatic Reclosing

Number of Reclosures
The following Protective Functions initiate the AR
79 (no 79 start / 79 start / 79 blocked)
Blocking of 79 by
Dead Time T
Dead
(separate for phase and ground and individual for
cycles 1 to 4)
Extension of Dead Time
Blocking Duration for Manual-CLOSE Detec-
tionT
BLK Manual Close
Blocking Duration after reclosuree T
Blocking Duration after Dynamic Blocking T
Start Signal Monitoring Time T
Circuit Breaker Monitoring Time T
Maximum Dead Time Extension T
Start delay of dead time
Max. start delay of dead time
T
Dead Delay
Operating time T
The following protection functions can be influ-
enced by the automatic reclosing function indi-
vidually for the cycles 1 to 4 (setting value T=T/
instantaneous T=0/ blocked T=infinite):
Additional Functions
SIPROTEC 4, 7SJ80, Manual
E50417-G1140-C343-A8, Edition 12.2017
Blocking Time
BLK DYN
Start Mnitor
CB Monitor
Dead Exten
Operate
0 to 9 (separated for phase and ground)
Cycles 1 to 4 can be adjusted individually
50-3, 50-2, 50-1, 51, 67-3, 67-2, 67-1, 67-TOC
50N-3, 50N-2, 50N-1, 51N, 67N-3, 67N-2, 67N-1, 67- TOC
TOCsensitive ground fault detection, unbalanced load,
binary input
Pick up of protective elements for which 79 blocking is set
(see above)
3-phase pickup (optional)3-polige Anregung (wahlweise)
Binary input
last trip command after the reclosing cycle is complete
(unsuccessful reclosure)
Trip command from the breaker failure
Opening the circuit breaker without 79
External CLOSE Command
Breaker failure monitoring
0.01 s to 320.00 s
using binary input with time monitoring
0.50 s to 320.00 s oder ∞
0.50 s to 320.00 s
0.01 s to 320.00 s
0.01 s to 320.00 s oder ∞
0.10 s to 320.00 s
0.50 s to 320.00 s oder ∞
using binary input with time monitoring
0,0 s to 1800,0 s oder ∞
0,01 s to 320,00 s oder ∞
50-3, 50-2, 50-1, 51, 67-3, 67-2, 67-1, 67-TOC
50N-3, 50N-2, 50N-1, 51N, 67N-3, 67N-2, 67N-1, 67- TOC
Lockout (Final Trip)
Circuit breaker monitoring using breaker auxiliary
contacts
Synchronous closing (optionally with integrated or
external synchrocheck, )
Technical Data
4.17 Automatic Reclosing
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 0.01 s
Increments 1,0 s
Increments 0,01 s
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