Application And Setting Notes Trigger Psum - Siemens SIPROTEC 5 Manual

Fault Recorder
7.5 Trigger Functions 3-Phase
7.5.4.4

Application and Setting Notes Trigger Psum

Parameter: Mode
•
Default setting (_:9901:1) Mode = off
With the Mode parameter, you activate the trigger for normal operation (On) or the test mode (Test).
Parameter Value
on
off
test
Parameter: Power Direction
•
Default setting (_:9901:111) Power direction = positive
With the Power direction parameter, you can trigger on negative powers if the parameter is set to nega-
tive.
Parameter Value
positive
negative
Parameter: Max. Trigger Active/Max. Trigger/Max. Trigger Hysteresis
•
Default setting (_:9901:101) Max. trigger active = yes
•
Default setting (_:9901:105) Max. trigger = 138.564 W
•
Default setting (_:9901:113) Max. trigger hysteresis = 0.980 p.u.
With the Max. trigger active parameter, you activate the level trigger in order to monitor the sum
active power and to prevent it from exceeding the set values.
Parameter Value
yes
no
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 (_:9901:102) Min. trigger active = yes
•
Default setting (_:9901:106) Min. trigger = 138.564 W
•
Default setting (_:9901:114) Min. trigger hysteresis = 1.020 p.u.
With the Min. trigger active parameter, you activate the level trigger in order to monitor the sum
active power for dropping below the set values.
Parameter Value
yes
no
The hysteresis is preset at the factory to 1.020 p.u. (equal to 2 %) of the parameter Min. trigger and can
be adjusted.
338
Description
The Trigger Psum function block is activated and the sum active power is
monitored according to the set trigger parameters.
The Trigger Psum function block is deactivated.
The Trigger Psum function block is activated for test purposes.
Description
This setting value has no influence on the trigger thresholds.
This setting value multiplies the trigger threshold by -1.
Description
The sum active power is monitored for exceeding the set values.
The sum active power is not monitored for exceeding the set values.
Description
The sum active power is monitored for dropping below the set values.
The sum active power is not monitored for dropping below the set values.
SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017