•
Default setting
(_:9571:116) dM/dt drop hysteresis
=
0.980 p.u.
•
Default setting
(_:9571:112) Filter time
=
2 periods
With the
dM/dt drop active
parameter, you activate the gradient trigger in order to monitor the negative
gradients of the voltage of the fundamental component using the set filtering time (input in periods).
Parameter Value
Description
yes
The negative gradient of the voltage of the fundamental component is
monitored.
no
The negative gradient of the voltage of the fundamental component is not
monitored.
The hysteresis is preset at the factory to 0.980 p.u. (equal to 2 %) of the parameter
dM/dt drop (/Filter
time)
and can be adjusted.
Settings
Addr.
Parameter
C
Setting Options
Default Setting
Trig. V RMS 1
_:9601:1
Trig. V RMS 1:Mode
•
off
•
on
•
test
off
_:9601:101
Trig. V RMS 1:Max.
trigger active
•
no
•
yes
yes
_:9601:105
Trig. V RMS 1:Max.
trigger
0.300 V to 340.000 V
120.000 V
_:9601:113
Trig. V RMS 1:Max.
trigger hysteresis
0.900 p.u. to 0.990 p.u.
0.980 p.u.
_:9601:102
Trig. V RMS 1:Min.
trigger active
•
no
•
yes
yes
_:9601:106
Trig. V RMS 1:Min.
trigger
0.300 V to 340.000 V
80.000 V
_:9601:114
Trig. V RMS 1:Min.
trigger hysteresis
1.010 p.u. to 1.100 p.u.
1.020 p.u.
_:9601:103
Trig. V RMS 1:dM/dt rise
active
•
no
•
yes
no
_:9601:107
Trig. V RMS 1:dM/dt rise
(/Filter time)
0.300 V to 340.000 V
20.000 V
_:9601:115
Trig. V RMS 1:dM/dt rise
hysteresis
0.900 p.u. to 0.990 p.u.
0.980 p.u.
_:9601:104
Trig. V RMS 1:dM/dt drop
active
•
no
•
yes
no
_:9601:108
Trig. V RMS 1:dM/dt drop
(/Filter time)
0.300 V to 340.000 V
20.000 V
_:9601:116
Trig. V RMS 1:dM/dt drop
hysteresis
0.900 p.u. to 0.990 p.u.
0.980 p.u.
_:9601:112
Trig. V RMS 1:Filter time
2 cycles to 250 cycles
2 cycles
Trig. V fund 1
_:9571:1
Trig. V fund 1:Mode
•
off
•
on
•
test
off
_:9571:101
Trig. V fund 1:Max.
trigger active
•
no
•
yes
yes
_:9571:105
Trig. V fund 1:Max.
trigger
0.300 V to 340.000 V
120.000 V
7.4.1.6
Fault Recorder
7.4 Trigger Functions 1-Phase
276
SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017
Summary of Contents for SIPROTEC 5
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