Functions
6-302
7SA6 Manual
C53000-G1176-C156-2
Figure 6-155 Breaker tripping alarm suppression — sequence examples
Trip Dependent
Messages
The latching of fault messages, allocated to the device LEDs and the storage of spon-
taneous messages after tripping may be made dependant on whether the device has
issued a trip command. This information is then not output if during a system distur-
bance one or more protection functions have picked up, but no tripping by the 7SA6
resulted because the fault was cleared by a different device (e.g. on another line). In
this manner, these messages are restricted to faults occurring on the protected feeder
(“no trip – no flag”).
Figure 6-156 shows the logic diagram of this function.
Figure 6-156 Logic diagram of the trip dependent messages
Switching
Statistics
The number of trips initiated by the device 7SA6 are counted. If the device is capable
of single-pole tripping, a separate counter for each circuit breaker pole is provided.
Protection
pick-up
Protection
trip
Auto-reclosure
(AR)
CB Operation
Detector
Alarm: “Breaker
Tripping”
Manual trip
(as required)
Manual Close via
binary input
“>Manual Close”
CB Pole
„
CB Alarm
Supp
“
AR dead time
Fault inception
Manual opening
Final trip of protection function
&
0610
with PICKUP
with TRIP
FltDisp.LED/LCD
Relay TRIP
„1“
Relay Drop Out
Reset LED and Spontaneous alarms
Содержание siprotec 7SA6
Страница 2: ...Siemens Aktiengesellschaft Book No C53000 G1176 C156 2 ...
Страница 18: ...xviii 7SA6 Manual C53000 G1176 C156 2 ...
Страница 32: ...Introduction 1 14 7SA6 Manual C53000 G1176 C156 2 ...
Страница 82: ...Hardware and Connections 2 50 7SA6 Manual C53000 G1176 C156 2 ...
Страница 119: ...SIPROTEC 4 Devices 4 25 7SA6 Manual C53000 G1176 C156 2 Figure 4 20 CFC Logic example ...
Страница 190: ...Configuration 5 62 7SA6 Manual C53000 G1176 C156 2 ...
Страница 559: ...Control During Operation 7 45 7SA6 Manual C53000 G1176 C156 2 Figure 7 45 Circuit breaker trip test in DIGSI 4 ...
Страница 652: ...Installation and Commissioning 8 78 7SA6 Manual C53000 G1176 C156 2 ...
Страница 724: ...Technical Data 10 56 7SA6 Manual C53000 G1176 C156 ...
Страница 800: ...Appendix A 76 7SA6 Manual C53000 G1176 C156 2 ...
Страница 866: ...Appendix B 66 7SA6 Manual C53000 G1176 C156 2 ...