Siemens SIPROTEC 5 User Manual

•
Default setting (_:9961:116) dM/dt drop hysteresis = 0.980 p.u.
•
Default setting (_:9961:112) 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.
Application and Setting Notes Trigger Ssum
Parameter: Mode
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Default setting (_:10021:1) Mode = off
With the Mode parameter, you activate the trigger for normal operation (On) or the test mode (Test).
Parameter Value Description
on
The Trigger Ssum function block is activated and the sum apparent power
is monitored according to the set trigger parameters.
off
The Trigger Ssum function block is deactivated.
test
The Trigger Ssum function block is activated for test purposes.
Parameter: Max. Trigger Active/Max. Trigger/Max. Trigger Hysteresis
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Default setting (_:10021:101) Max. trigger active = yes
•
Default setting (_:10021:105) Max. trigger = 207.846 VA
•
Default setting (_:10021:113) Max. trigger hysteresis = 0.980 p.u.
With the Max. trigger active parameter, you activate the level trigger in order to monitor the sum
apparent power and to prevent it from exceeding the set values.
Parameter Value
Description
yes
The sum apparent power is monitored for exceeding the set values.
no
The sum apparent power is not monitored for exceeding the set values.
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 (_:10021:102) Min. trigger active = yes
•
Default setting (_:10021:106) Min. trigger = 138.564 VA
•
Default setting (_:10021:114) Min. trigger hysteresis = 1.020 p.u.
With the Min. trigger active parameter, you activate the level trigger in order to monitor the sum
apparent power for dropping below the set values.
Parameter Value
Description
yes
The sum apparent power is monitored for dropping below the set values.
no
The sum apparent power is not monitored for dropping below the set
values.
The hysteresis is preset at the factory to 1.020 p.u. (equal to 2 %) of the parameter Min. trigger and can
be adjusted.
7.5.4.6
Fault Recorder
7.5 Trigger Functions 3-Phase
SIPROTEC 5, Fault Recorder, Manual 341
C53000-G5040-C018-5, Edition 11.2017

Siemens SIPROTEC 5 Specifications

General

Brand	Siemens
Model	SIPROTEC 5
Category	Controller
Language	English