Automatic Reclosing System - Siemens SIPROTEC 7SJ62 Manual

Technical Data

4.18 Automatic Reclosing System 79

4.18 Automatic Reclosing System 79
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 Detection T
Manual Close
Blocking Duration after Manual Close 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 influenced
by the automatic reclosing function individually for
the cycles 1 to 4 (setting value T=T/ instantaneous
T=0/ blocked T=infinite):
Additional Functions
518
Blocking Time
Blk Dyn
Start Monitor
CB Monitor
Dead Exten
Operat
0 to 9 (separated for phase and ground)
Cycles 1 to 4 can be adjusted individually
50-1, 50-2, 50-3, 51, 67-1, 67-2, 67-TOC, 50N-1, 50N-2,
50N-3, 51N,
67N-1, 67N-2, 67N-TOC, sens. ground fault detection,
unbalanced load, binary input
Pick up of protective elements for which 79 blocking is
set (see above)
three phase pickup (optional)
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 or ∞
Blk
0.50 s to 320.00 s
0.01 s to 320.00 s
0.01 s to 320.00 s or ∞
0.10 s to 320.00 s
0.50 s to 320.00 s or ∞
using binary input with time monitoring
0.0 s to 1800.0 s or ∞
0.01 s to 320.00 s or ∞
50-1, 50-2, 50-3, 51, 67-1, 67-2, 67-TOC, 50N-1, 50N-2,
50N-3, 51N,
67N-1, 67N-2, 67N-TOC
Lockout (Final Trip)
Circuit breaker monitoring using breaker auxiliary con-
tacts,
Synchronous closing (optionally with integrated or exter-
nal synchrocheck, 7SJ64 only)
C53000-G1140-C207-2, Release date 01.2008
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
SIPROTEC, 7SJ62/64, Manual