Siemens SIPROTEC 5 User Manual

Parameter Value Description
no
The negative gradient of the sum active 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 Q
Parameter: Mode
•
Default setting (_:19441:1) 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 Q function block is activated and the sum reactive power moni-
tored according to the set trigger parameters.
off
The Trigger Q function block is deactivated.
test
The Trigger Q function block is activated for test purposes.
Parameter: Power Direction
•
Default setting (_:19441:111) Power direction = positive
With the Power direction parameter, you can trigger on negative powers if the parameter is set to nega-
tive.
Parameter Value
Description
positive
This setting value has no influence on the trigger thresholds.
negative
This setting value multiplies the trigger threshold by -1.
Parameter: Max. Trigger Active/Max. Trigger/Max. Trigger Hysteresis
•
Default setting (_:19441:101) Max. trigger active = yes
•
Default setting (_:19441:105) Max. trigger = 0 var
•
Default setting (_:19441:113) Max. trigger hysteresis = 0.980 p.u.
With the Max. trigger active parameter, you activate the level trigger in order to monitor the sum reac-
tive power for exceeding the set values.
Parameter Value
Description
yes
The sum reactive power is monitored for exceeding the set values.
no
The sum reactive 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 (_:19441:102) Min. trigger active = yes
•
Default setting (_:19441:106) Min. trigger = 0 var
•
Default setting (_:19441:114) Min. trigger hysteresis = 1.020 p.u.
With the Min. trigger active parameter, you activate the level trigger in order to monitor the sum reac-
tive power for dropping below the set values.
Parameter Value
Description
yes
The sum reactive power is monitored for dropping below the set values.
no
The sum reactive power is not monitored for dropping below the set values.
7.4.4.5
Fault Recorder
7.4 Trigger Functions 1-Phase
SIPROTEC 5, Fault Recorder, Manual 293
C53000-G5040-C018-5, Edition 11.2017

Siemens SIPROTEC 5 Specifications

General

Brand	Siemens
Model	SIPROTEC 5
Category	Controller
Language	English