Automatic Reclosing System 79 - Siemens siprotec SJ62 User Manual

4.17

Automatic Reclosing System 79

SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
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 indi-
vidual for shots 1 to 4)
Extension of Dead Time
Blocking Duration for Manual-CLOSE De-
tection T
Blk Manual Close
Blocking Duration after Manual Close
T
Blocking Time
Blocking Duration after Dynamic Blocking
T
Blk Dyn
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
Operating time T
Operat
The following protection functions can be
influenced by the automatic reclosing func-
tion individually for the cycles 1 to 4 (setting
value T=T/ instantaneous T=0/ blocked
T=infinite):
Additional Functions
4.17 Automatic Reclosing System 79
0 to 9 (segregated into phase and ground settings)
Cycles 1 to 4 can be adjusted individually
50-1, 50-2, 51, 67-1, 67-2, 67-TOC, 50N-1, 50N-2,
51N, 67N-1, 67N-2, 67N-TOC, sensitive ground
fault detection, unbalanced load 46-1, 46-2, 46-
TOC, binary inputs
Pick up of protective elements for which 79 block-
ing is set (see above)
three phase pickup (optional)
Binary input
Last trip command after the reclosing cycle is com-
plete (unsuccessful reclosing)
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 or ∞
0.50 s to 320.00 s
0.01 s to 320.00 s
0.01 s to 320.00 s or ∞
Start Monitor
0.10 s to 320.00 s
CB Monitor
0.50 s to 320.00 s or ∞
Dead Exten
using binary input with time monitoring
0.0 s to 1800.0 s or ∞
Dead delay
0.01 s to 320.00 s or ∞
50-1, 50-2, 51, 67-1, 67-2, 67-TOC, 50N-1, 50N-2,
51N, 67N-1, 67N-2, 67N-TOC
Lockout (Final Trip)
Circuit breaker monitoring using breaker auxiliary
contacts,
Synchronous closing (optionally with integrated or
external synchrocheck, 7SJ64 only)
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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