Functions
2.8 Function Control
SIPROTEC, 7VK61, Manual
C53000-G1176-C159-3, Release date 05.2009
154
For automatic reclosure and circuit breaker test
Separate binary inputs comprising information on the position of the circuit breaker are available for the auto-
matic reclosure and the circuit breaker test. This is important for
• The plausibility check before automatic reclosure (refer to Section 2.2),
• The trip circuit check with the help of the TRIP–CLOSE–test cycle (refer to Section 2.8.2).
When using 1
1
/
2
or 2 circuit breakers in each feeder, the automatic reclosure function and the circuit breaker
test refer to
one
circuit breaker. The feedback information of this circuit breaker can be connected separately
to the device.
For this, separate binary inputs are available, which should be treated the same and configured additionally if
necessary. These have a similar significance as the inputs described above for protection applications and are
marked with „CB1 ...“ to distinguish them, i.e.:
•
„>CB1 3p Closed“
(No. 410) for the series connection of the NO auxiliary contacts of the CB,
•
„>CB1 3p Open“
(No. 411) for the series connection of the NC auxiliary contacts of the CB,
•
„>CB1 Pole L1“
(No. 366) for the auxiliary contact of pole L1,
•
„>CB1 Pole L2“
(No. 367) for the auxiliary contact of pole L2,
•
„>CB1 Pole L3“
(No. 368) for the auxiliary contact of pole L3.
2.8.1.3
Open Pole Detector
Besides the evaluation of the CB auxiliary contacts, single-pole dead times can be detected and reported via
the Open Pole Detector. This, however, requires the three-pole connection of currents and voltages. The cor-
responding protection and monitoring function can respond. The following figure shows the logic structure of
an Open Pole Detector.
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 ...