Functions
2.3 Overcurrent protection (optional)
SIPROTEC, 7VK61, Manual
C53000-G1176-C159-3, Release date 05.2009
71
Figure 2-15
Logic diagram of stub fault protection
1
)
The output indications associated with the pickup signals can be found in Table 2-3
2
)
The output indications associated with the trip signals can be found in Table 2-4
Instantaneous tripping before automatic reclosure
If automatic reclosure must be performed, a quick clearance of the fault before reclosure is usually desirable.
A release signal from an external automatic reclosure device can be injected via binary input
„>O/C
InstTRIP“
. The interconnection of the internal auto recloser is performed via an additional CFC logic, which
typically connects the output signal 2889
„AR 1.CycZoneRel“
with the input signal
„>O/C InstTRIP“
. Any
stage of the overcurrent protection can thus perform an instantaneous trip before reclosure via the parameter
Telep/BI ...
.
Summary of Contents for Siprotec 7VK61
Page 8: ...Preface SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 8 ...
Page 14: ...Contents SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 14 ...
Page 316: ...Literature SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 316 ...
Page 328: ...Glossary SIPROTEC 7VK61 Manual C53000 G1176 C159 3 Release date 05 2009 328 ...