Application And Setting Notes Trig V Rms (Rms Value) - Siemens SIPROTEC 5 Manual

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 dM/dt rise active and dM/dt drop active parameters, you define whether the respective
gradient trigger is active or inactive.
Filtering Time
With the Filter time parameter, you define the number of periods with which the gradient is determined.
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.
7.4.1.4

Application and Setting Notes Trig V RMS (RMS Value)

Parameter: Mode
•
Default setting (_:9601:1) Mode = off
With the Mode parameter, you activate the trigger for normal operation (On) or the test mode (Test).
Parameter Value
on
off
test
Parameter: Max. Trigger Active/Max. Trigger/Max. Trigger Hysteresis
•
Default setting (_:9601:101) Max. trigger active = yes
•
Default setting (_:9601:105) Max. trigger = 120.000 V
•
Default setting (_:9601:113) Max. trigger hysteresis = 0.980 p.u.
With the Max. trigger active parameter, you activate the level trigger in order to monitor the RMS value
of the voltage and to prevent it from exceeding the set values.
Parameter Value
yes
no
The hysteresis is preset at the factory to 0.980 p.u. (equal to 2 %) of the parameter Max. trigger and can
be adjusted.
Parameter: Min. Trigger Active/Min. Trigger/Min. Trigger Hysteresis
•
Default setting (_:9601:102) Min. trigger active = yes
•
Default setting (_:9601:106) Min. trigger = 80.000 V
•
Default setting (_:9601:114) Min. trigger hysteresis = 1.020 p.u.
SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017
Description
The function block Trig. V RMS is activated and the RMS value of the
voltage will be monitored on the basis of the set trigger parameter.
The function block Trig. V RMS is deactivated.
The function block Trig. V RMS is activated for test purposes.
Description
The RMS value of the voltage is monitored for overvoltage.
The RMS value of the voltage is not monitored for overvoltage.
Fault Recorder
7.4 Trigger Functions 1-Phase
273