Siemens SIPROTEC 5, Manual

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The hysteresis is preset at the factory to 1.020 p.u. (equal to 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
(_:19441:103) dM/dt rise active
=
no
•
Default setting
(_:19441:107) dM/dt rise (/Filter time)
=
0 var
•
Default setting
(_:19441:115) dM/dt rise hysteresis
=
0.980 p.u.
•
Default setting
(_:19441:112) 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 reactive power using the set filtering time (input in periods).
Parameter Value Description
yes
The positive gradient of the sum reactive power is monitored.
no
The positive gradient of the sum reactive power is not monitored.
The hysteresis is preset at the factory to 0.980 p.u. (equal to 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
(_:19441:104) dM/dt drop active
=
no
•
Default setting
(_:19441:108) dM/dt drop (/Filter time)
=
0 var
•
Default setting
(_:19441:116) dM/dt drop hysteresis
=
0.980 p.u.
•
Default setting
(_:19441:112) 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 sum reactive power using the set filtering time (input in periods).
Parameter Value Description
yes
The negative gradient of the sum reactive power is monitored.
no
The negative gradient of the sum reactive power 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
Trigger P 1
_:19411:1 Trigger P 1:Mode
•
off
•
on
•
test
off
_:19411:111 Trigger P 1:Power direc-
tion
•
negative
•
positive
positive
_:19411:101 Trigger P 1:Max. trigger
active
•
no
•
yes
yes
_:19411:105 Trigger P 1:Max. trigger 1 A @ 100 Irated 0.20 W to 20000.00 W 120.00 W
5 A @ 100 Irated 0.60 W to 100000.00 W 600.00 W
_:19411:113 Trigger P 1:Max. trigger
hysteresis 0.900 p.u. to 0.990 p.u. 0.980 p.u.
_:19411:102 Trigger P 1:Min. trigger
active
•
no
•
yes
yes
7.4.4.6
Fault Recorder
7.4 Trigger Functions 1-Phase
294 SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017