Siemens SIPROTEC 5 User Manual

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 Description
on
The Trigger Psum function block is activated and the sum active power is
monitored according to the set trigger parameters.
off
The Trigger Psum function block is deactivated.
test
The Trigger Psum function block is activated for test purposes.
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 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 (_: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
Description
yes
The sum active power is monitored for exceeding the set values.
no
The sum active 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 (_: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
Description
yes
The sum active power is monitored for dropping below the set values.
no
The sum active 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.
7.5.4.4
Fault Recorder
7.5 Trigger Functions 3-Phase
338 SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017

Siemens SIPROTEC 5 Specifications

General

Brand	Siemens
Model	SIPROTEC 5
Category	Controller
Language	English