Siemens 6MD86 - Page 586

Parameter: 79 operating mode
•
Default setting (_:6601:101) 79 operating mode = with op., with act. time
You can use the 79 operating mode parameter to determine which start criteria the automatic reclosing
function works with.
Parameter Value Description
with op., with act.
time
The automatic reclosing function cycles are dependent on the operate time of
the protection function(s). The start occurs with all protection function(s) or
protection stages that are configured through the automatic reclosing function
start matrix.
Siemens generally recommends this setting for applications with 1/3-pole trip-
ping and for applications with 3-pole tripping if a single dead time, independent
of the type of connection working, is required in the automatic reclosing func-
tion cycle.
Detailed information can be found in Chapter 7.2.4.1 Operating Modes for
Cyclic Automatic Reclosing Function, section Operating mode 1
w.pickup, w. action
time
The automatic reclosing function cycles are dependent on the operate time of
the protection function(s) and the type of fault. The start occurs with all protec-
tion function(s) or protection stages that are configured through the automatic
reclosing function start matrix.
For applications with 3-pole tripping and dead time dependent on the circuit
type, Siemens recommends this setting.
Detailed information can be found in the chapter 7.2.4.1 Operating Modes for
Cyclic Automatic Reclosing Function, section Operating Mode 2
with op., w/o act.
time
Each operate indication starts the automatic reclosing function. The start occurs
with all protection function(s) or protection stages that are configured through
the automatic reclosing function start matrix.
The automatic reclosing function start must be configured so that it only occurs
from the protection stages/zones for which an automatic reclosing should occur
after tripping.
Detailed information can be found in the chapter 7.2.4.1 Operating Modes for
Cyclic Automatic Reclosing Function, section Operating Mode 3
w.pickup, w/o act.
time
Each operate indication starts the automatic reclosing function. The automatic
reclosing function cycles are dependent on the type of fault. The start occurs
with all protection function(s) or protection stages that are configured through
the automatic reclosing function start matrix.
The automatic reclosing function start must be configured so that it only occurs
from the protection stages/zones for which an automatic reclosing should occur
after tripping.
Detailed information can be found in the chapter 7.2.4.1 Operating Modes for
Cyclic Automatic Reclosing Function, section Operating Mode 4
Parameter: CB ready check bef. start
•
Default setting (_:6601:102) CB ready check bef. start = no
With the CB ready check bef. start parameter, you can determine if the readiness of the circuit
breaker should be tested before starting the automatic reclosing function.
Additionally or alternatively, it is possible to check the readiness of the circuit breaker after the expiration of
the dead time, directly before the assignment of the close command. There is another parameter described in
the chapter 7.2.8 Application and Setting Notes for 1 Cycle of the Cyclic Automatic Reclosing Function for this
function.
Protection and Automation Functions
7.2 Automatic Reclosing Function
586 SIPROTEC 5, High-Voltage Bay Controller, Manual
C53000-G5040-C015-9, Edition 11.2017