Siemens SIPROTEC 5, Руководство пользователя

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Mode
The trigger is switched on, off, or in test mode. In test mode, the fault records are marked with a test flag.
You can find more information on the mode in chapter
7.1.3 Step 2: Setting the Parameters and Routing in
DIGSI 5 .
Measured Value
With the
Measured value
parameter, you define whether the function block analyzes the phase-to-phase
voltages V
AB
, V
BC
, and V
CA
or the phase-to-ground voltages V
A
, V
B
, and V
C
. This parameter can be adjusted in
the function blocks V Fund. Trig and V RMS Trig.
i
i
NOTE
Take into account that the setting of the trigger in percent always related to the connection type
phase-
to-phase
.
Switching on Trigger Max./Trigger Min.
With the parameters
Max. trigger active
and
Min. trigger active
, you define whether the respec-
tive level trigger is active or inactive.
Trigger Max./Trigger Min.
With the parameters
Max. trigger
and
Min. trigger
, you define from which threshold value the acti-
vated level trigger starts a fault record.
Switch on dM/dt Rise - dM/dt Drop
With the parameters
dM/dt rise active
and
dM/dt drop active
, you define whether the respective
gradient trigger is active or inactive.
Filtering Time
With the
Filter time
parameter, you define the number of the periods with which the gradient is deter-
mined.
Gradient Trigger for Rising and Dropping Gradients of the Voltage
With the parameters
dM/dt rise (/Filter time)
and
dM/dt drop (/Filter time)
, you define
from which threshold value within the set filtering time a fault record is started.
Application and Setting Notes Trig V Fund (Fundamental Component)
Parameter: Mode
•
Default setting
(_:9571:1) Mode
=
off
With the
Mode
parameter, you activate the trigger for normal operation (On) or the test mode (Test).
Parameter Value Description
on
The function block
Trig. V fund 1
is activated and the fundamental
component is monitored on the basis of the set trigger parameter.
off
The function block
Trig. V fund 1
is deactivated.
test
The function block
Trig. V fund 1
is activated for test purposes.
Parameter: Measured Value
•
Default setting
(_:9571:9) Measured value
=
phase-to-phase
With the
Measured value
parameter, you define, independently of the connection type, whether to trigger
on phase-to-phase or phase-to-ground variables.
7.5.1.4
Fault Recorder
7.5 Trigger Functions 3-Phase
SIPROTEC 5, Fault Recorder, Manual 299
C53000-G5040-C018-5, Edition 11.2017