For all interlocking modules these general rules apply:
•
The interlocking conditions for opening or closing of disconnectors and grounding switches
are always identical.
•
Grounding switches on the line feeder end, for example, rapid grounding switches, are
normally interlocked only with reference to the conditions in the bay where they are located,
not with reference to switches on the other side of the line. So a line voltage indication may be
included into line interlocking modules. If there is no line voltage supervision within the bay,
then the appropriate inputs must be set to
no voltage, and the operator must consider this
when operating.
•
Grounding switches can only be operated on isolated sections for example, without load/
voltage. Circuit breaker contacts cannot be used to isolate a section, that is, the status of the
circuit breaker is irrelevant as far as the grounding switch operation is concerned.
•
Disconnectors cannot break power current or connect different voltage systems.
Disconnectors in series with a circuit breaker can only be operated if the circuit breaker is
open, or if the disconnectors operate in parallel with other closed connections. Other
disconnectors can be operated if one side is completely isolated, or if the disconnectors
operate in parallel to other closed connections, or if they are grounding on both sides.
•
Circuit breaker closing is only interlocked against running disconnectors in its bay or
additionally in a transformer bay against the disconnectors and grounding switch on the
other side of the transformer, if there is no disconnector between CB and transformer.
•
Circuit breaker opening is only interlocked in a bus-coupler bay, if a bus bar transfer is in
progress.
To make the implementation of the interlocking function easier, a number of standardized and
tested software interlocking modules containing logic for the interlocking conditions are
available:
•
Line for double and transfer busbars, ABC_LINE (3)
•
Bus for double and transfer busbars, ABC_BC (3)
•
Transformer bay for double busbars, AB_TRAFO (3)
•
Bus-section breaker for double busbars, A1A2_BS (3)
•
Bus-section disconnector for double busbars, A1A2_DC (3)
•
Busbar grounding switch, BB_ES (3)
•
Double CB Bay, DB_BUS_A(3), DB_LINE(3), DB_BUS_B(3)
•
Breaker-and-a-half diameter, BH_LINE_A, BH_CONN, BH_LINE_B (3)
The interlocking conditions can be altered, to meet the customer specific requirements, by adding
configurable logic by means of the graphical configuration tool PCM600. The inputs Qx_EXy on the
interlocking modules are used to add these specific conditions.
The input signals EXDU_xx shall be set to true if there is no transmission error at the transfer of
information from other bays. Required signals with designations ending in TR are intended for
transfer to other bays.
14.2.3
Logical node for interlocking SCILO (3)
IP14138-1 v2
14.2.3.1
Identification
GUID-3EC5D7F1-FDA0-4F0E-9391-08D357689E0C v3
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Logical node for interlocking
SCILO
-
3
1MRK 502 066-UUS B
Section 14
Control
767
Technical manual
Содержание Relion 670 series
Страница 1: ... RELION 670 SERIES Generator protection REG670 Version 2 1 ANSI Technical manual ...
Страница 2: ......
Страница 48: ...42 ...
Страница 62: ...56 ...
Страница 182: ...176 ...
Страница 692: ...686 ...
Страница 726: ...720 ...
Страница 1014: ...1008 ...
Страница 1242: ...1236 ...
Страница 1362: ...1356 ...
Страница 1386: ...1380 ...
Страница 1422: ...1416 ...
Страница 1431: ...1425 ...