Settings - Siemens SIPROTEC 5 Manual

Fault Recorder
7.4 Trigger Functions 1-Phase
Parameter Value
no
The hysteresis is preset at the factory to 1.002 p.u. (equal to 0.2 %) of the parameter Min. trigger and can
be adjusted.
Parameter: dM/dt Rise Active - dM/dt Rise (/Filter Time) - dM/dt Rise Hysteresis - Filter Time
•
Default setting (_:9721:105) dM/dt rise active = no
•
Default setting (_:9721:106) dM/dt rise (/Filter time) = 0.100 Hz
•
Default setting (_:9721:115) dM/dt rise hysteresis = 0.998 p.u.
•
Default setting (_:9721:112) Filter time = 2 periods
With the dM/dt rise active parameter, you activate the gradient trigger in order to monitor the positive
gradients of the sum apparent power using the set filtering time (input in periods).
Parameter Value
yes
no
The hysteresis is preset at the factory to 0.998 p.u. (equal to 0.2 %) of the parameter dM/dt rise (/
Filter time) and can be adjusted.
Parameter: dM/dt Drop Active - dM/dt Drop (/Filter Time) - dM/dt Drop Hysteresis - Filter Time
•
Default setting (_:9721:107) dM/dt drop active = no
•
Default setting (_:9721:108) dM/dt drop (/Filter time) = 0.100 Hz
•
Default setting (_:9721:116) dM/dt drop hysteresis = 0.998 p.u.
•
Default setting (_:9721:112) 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 power frequency using the set filtering time (input in periods).
Parameter Value
yes
no
The hysteresis is preset at the factory to 0.998 p.u. (equal to 0.2 %) of the parameter dM/dt drop (/
Filter time) and can be adjusted.
7.4.3.5

Settings

Addr.
Trigger f 1
_:9721:1
_:9721:101
_:9721:102
_:9721:113
_:9721:103
_:9721:104
288
Description
The power frequency is not monitored for dropping below the set value.
Description
The positive gradient of the power frequency is monitored.
The positive gradient of the power frequency is not monitored.
Description
The negative gradient of the power frequency is monitored.
The negative gradient of the power frequency is not monitored.
Parameter C
Trigger f 1:Mode
Trigger f 1:Max. trigger
active
Trigger f 1:Max. trigger
Trigger f 1:Max. trigger
hysteresis
Trigger f 1:Min. trigger
active
Trigger f 1:Min. trigger
Setting Options
•
off
•
on
•
test
•
no
•
yes
50.000 Hz to 60.000 Hz
0.990 p.u. to 0.999 p.u.
•
no
•
yes
25.000 Hz to 50.000 Hz
SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017
Default Setting
off
yes
50.200 Hz
0.998 p.u.
yes
49.600 Hz