Automatic Reclosing Function - Siemens 7SC80 Manual

4.16

Automatic Reclosing Function

Number of reclosures
The following protection functions initiate the 79
AR (no 79 start / 79 start / 79 blocked)
Blocking of 79 AR by
Dead times T
dead time
(separately for phase and ground and individually
for cycles 1 to 4)
Extension of dead time
Blocking duration for manual CLOSE detection
T
Blk Manual Close
Blocking duration after reclosing 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 cycles 1 to 4 (setting value T=T/
instantaneous T=0/ blocked T=infinite):
Additional functions
SIPROTEC Compact, 7SC80, Manual
E50417-G1140-C486-A8, Edition 07.2017
Blk Time
BLK DYN
Start Monitor
CB Monitor
Dead Exten
Operat
0 to 9 (separated by phase and ground)
Cycle 1 to 4 individually adjustable
50-3, 50-2, 50-1, 51, 51-1, 51-2, 51-3, 51-4,
67-3, 67-2, 67- 1, 67-TOC, 67-TOC-1, 67-TOC-2, 67-
TOC-3, 67-TOC-4,
50N-3, 50N-2, 50N-1, 51N, 51N-1, 51N-2, 51N-3, 51N-4,
67N-3, 67N-2, 67N-1, 67N-TOC, 67N-TOC-1, 67N-TOC-2,
67N-TOC-3, 67N-TOC-4,
unbalanced load, binary input
Pickup of protection functions for which 79 AR blocking is
set (see above)
Three-phase pickup (optional)
Binary input
Last trip command after the reclosing cycle is complete
(unsuccessful reclosing)
Trip command from the breaker failure protection
Opening of the circuit breaker without 79 AR start
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 ∞
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 ∞
50-3, 50-2, 50-1, 51, 51-1, 51-2, 51-3, 51-4,
67-2, 67-1, 67- TOC, 67-TOC-1, 67-TOC-2, 67-TOC-3, 67-
TOC-4,
50N-3, 50N-2, 50N-1, 51N, 51N-1, 51N-2, 51N-3, 51N-4,
67N-2, 67N-1, 67N-TOC, 67N-TOC-1, 67N-TOC-2,
67NTOC- 3, 67N-TOC-4
Final trip,
Circuit breaker monitoring by evaluating the auxiliary
contacts,
Synchronous closing (with external synchrocheck)
Technical Data
4.16 Automatic Reclosing Function
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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