Interlocking - Siemens SIPROTEC 7SJ62 Instruction Manual
Multi-functional protective relay with bay controller
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Also See for SIPROTEC 7SJ62:
- Manual (704 pages) ,
- Technical data manual (58 pages) ,
- Manual (94 pages)
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From PC Us-
®
ing DIGSI
4
7.3.4
Interlocking
:
From PC with
®
DIGSI
4
:
From PC with
®
DIGSI
4
7SJ62 Manual
C53000-G1140-C121-1
For safety reasons, Status changes are only possible locally using the keypad on the
front panel of the device. Status changes are not possible in DIGSI
Operating equipment such as circuit breakers, circuit switchers and ground switches
can be subject to interlocking conditions. These conditions can be viewed at the de-
vice under the menu item ,17(5/2&.; however, the conditions cannot be changed.
The Interlock display has an object table similar to the one described for Set Status.
The table provides the set interlocking conditions, which prevent, or could prevent, a
local control operation. Letters identify the interlocking conditions. The meanings of
the letters are:
• L
Local/Remote (Switching Authority),
• S Equipment is subject to System Interlocking (in Substation Controller). Com-
mands entered locally are sent to the central computer or controller,
• Z
Zone controlled (Field- or Bay-Interlocking),
• P Check switch position (test actual vs. scheduled),
• B Blocking by picked-up protection elements,
• –
Non-Interlocked.
With a device ready for operation, first press the
key, select the menu item &RQWURO and move to editing the control func-
Using the
key. The selection &21752/ appears.
tions with the
Select the item ,QWHUORFN with the
key. The selection ,17(5/2&. appears. See Figure 7-52.
&21752/
!7DJJLQJ
!,QWHUORFN
Figure 7-52
ample of Interlocking Conditions for Switching Equipment, Front Panel
Ex
Interlocking is set for each switching device during project planning (see Sub-section
5.2.4) using the matrix and the dialog box "Object Properties". Readout of the actively
set interlocking is always possible, across the entire path, without a password.
If the 2QOLQH window in DIGSI
tions for the device appear in the left part of the window (Figure 7-38). Double clicking
on 6HWWLQJV brings up the function selection in the right side of the window. By dou-
MENU
key and switch to the next selection using the
²!
!
²!
,17(5/2&.
!%UHDNHU / ² = 3 %
!'LVF6ZLW / ² = 3 %
*QG6ZLW
®
4 is opened with a double click, the operating func-
Operators Tools
®
4.
key. The 0$,1 0(18 appears.
/ ² = 3 %
1. 2. 3. 4. 5. Column
7-45
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