Siemens SIPROTEC 6MD665, Manual

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2.7 Circuit breaker synchronisation
61
6MD665 Manual
C53000-G1876-C103-3
6HF7UDQV1RP9DO
Here, the secondary rated transformer voltage V1 of the measured-value input for the
relevant reference voltage must be set on the input/output modules. In this context, it
must be observed that, in case of a measuring voltage application, transformers with
the same transformation ratio and the same connection must be used for all connect-
able voltages. The voltage can be set in the predefined range. A default value is
preset.
6HF7UDQV1RP9DO
Here, the secondary rated transformer voltage V2 of the measured-value input for the
relevant reference voltage must be set on the input/output modules. In this context, it
must be observed that, in case of a measuring voltage application, transformers with
the same transformation ratio and the same connection must be used for all connect-
able voltages. The voltage can be set in the predefined range. A default value is
preset.
6\QF6'
Synchronizable control device. The synchronization function can be used for control-
ling an internal or external command procedure. In case of an internal command pro-
cessing, a connection to the control device to be synchronized is established at the
parameter
6\QF6'
. The command is initiated via a control command to the control
device, e.g. from the control display. In case of an external command processing, the
parameter is "empty".
8PLQ
The lower voltage limit
8PLQ
specifies the minimum voltage which may be con-
nected. It can be specified in the predefined range. A default value is preset.
8PD[
The upper voltage limit
8PD[
specifies the maximum voltage which may be con-
nected. It can be specified in the predefined range. A default value is preset.
8GHDG
The voltage threshold indicates the voltage maximum up to which a line or busbar is
detected as dead. It can be specified in the predefined range. A default value is preset.
6\QF8!8
This parameter serves to specify if a connection is to take place in case of a healthy
busbar and a dead line or dead generator (Dead Line). The default setting is No.
6\QF88!
This parameter serves to specify if a connection is to take place in case of a dead
busbar and a healthy line (Dead Bus). The default setting is No.
6\QF88
This parameter serves to specify if a connection is to take place in case of a dead
busbar and a dead line (Dead Line and Dead Bus). The default setting is No.
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The maximum duration of synchronisation check must be set here. If the connection
cannot be established successfully within this period, the synchronization procedure
is aborted. It can be specified in the predefined range. A default value is preset.
IPLQ
This setting defines the minimum of the frequency range in which the synchronous
connection is permissible. The working range of the measuring procedures is not influ-
enced. The lower limit of the frequency working range must be lower than its upper
limit. It can be specified in the predefined range. A default value is preset.
IPD[
This setting defines the maximum of the frequency range in which the synchronous
connection is permissible. The working range of the measuring procedures is not influ-