Siemens siprotec SJ62 User Manual page 113

2 Functions
External Control
Switch
Internal Control
Function
Interaction with Au-
tomatic Reclosure
Function (Phases)
Interaction with Au-
tomatic Reclosing
Function (ground)
111
Figure 2-31 Manual close feature
If the manual closing signal is not from a 7SJ62/63/64 relay, that is, neither sent via
the built-in operator interface nor via a series interface, but, rather, directly from a
control acknowledgment switch, this signal must be passed to a 7SJ62/63/64 binary
input, and configured accordingly („>Manual Close"), so that the element selected
for MANUAL CLOSE will be effective. Inactive means that the element operates as
configured even with manual close.
The manual closing information must be allocated via CFC (interlocking task-level)
using the CMD_Information block, if the internal control function is used.
Figure 2-32 Example for manual close feature using the internal control function
Note
For an interaction between the automatic reclosure (AR) and the control function, an
extended CFC logic is necessary. See margin heading „CLOSE command: Directly or
via control" in the Setting Notes of the AR function (Section 2.14.6).
When reclosing occurs, it is desirable to have high speed protection against faults with
67-2. If the fault still exists after the first reclosure, elements 67-1 or 67-TOC will be
initiated with graded tripping times, i.e., the 67-2 elements will be blocked. At address
1514 67 active, it can be specified whether (with 79 active) or not (Always)
the 67-2 elements should be supervised by the status of an internal or external auto-
matic reclosing device. Address with 79 active determines that the 67-2 elements
will not operate unless automatic reclosing is not blocked. If not desired, then setting
Always is selected having the effect that the 67-2 elements will always operate, as
configured.
The integrated automatic reclosing function of 7SJ62/63/64 also provides the option
to individually determine for each time overcurrent element whether instantaneous
tripping, i.e. normal time delayed tripping unaffected by the automatic reclosing, or
blocking shall take place (see Section 2.14).
When reclosing occurs, it is desirable to have high speed protection against faults with
67N-2. If the fault still exists after the first reclosure, elements 67N-1 or 67N-TOC will
be initiated with graded tripping times, i.e. the 67N-2 elements will be blocked. At
address 1614 67N active, it can be specified whether (with 79 active) or not
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015