Siemens SIPROTEC 4 7VE61 User Manual

breaker. 2-channels version of the 7VE63 occurs with the basically sequence acc. to the logic diagram also in
the 2nd channel. If all measuring decisions result positive, the 2nd channel releases Sync CloseRel 2 .
In the 1
1
/
2
-channel version of the 7VE61, the 1st channel represents a synchrocheck function. A time window
is opened into which the release command of the other channel has to be interrupted in order to enable a
synchronization. This results in certain dependencies between the setting values for the time window, circuit
breaker closing time and permissible frequency deviation (see Setting Notes in Section 2.2.2.1 Setting Notes).
[logik-schalten-asynchr-netze-140403-kn, 1, en_GB]
Figure 2-15
Logic diagram: Switching asynchronous networks (illustration for channel 1)
Functions
2.2 Paralleling Functions
SIPROTEC 4, 7VE61 and 7VE63, Manual 51
C53000-G1176-C163-3, Edition 10.2017

Siemens SIPROTEC 4 7VE61 Specifications

General

Brand	Siemens
Model	SIPROTEC 4 7VE61
Category	Power distribution unit
Language	English