Siemens SIPROTEC 5 User Manual

Parameter Value Description
yes
The positive gradient of the current in the positive-sequence system is
monitored.
no
The positive gradient of the current in the positive-sequence system 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 (_:9841:104) dM/dt drop active = yes
•
Default setting (_:9841:108) dM/dt drop (/Filter time) = 0.300 A
•
Default setting (_:9841:116) dM/dt drop hysteresis = 0.980 p.u.
•
Default setting (_:9841:112) 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 current in the positive-sequence system using the set filtering time (input in periods).
Parameter Value Description
yes
The negative gradient of the current in the positive-sequence system is
monitored.
no
The negative gradient of the current in the positive-sequence system 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 - I2 Trigger (Negative-Sequence System)
Parameter: Mode
•
Default setting (_:9871:1) Mode = off
With the Mode parameter, you activate the trigger for normal operation (On) or for the test mode (Test).
Parameter Value
Description
on
The function block I2 Trigger is activated and the voltage in the negative-
sequence system is monitored on the basis of the set trigger parameter.
off
The function block I2 Trigger is deactivated.
test
The function block I2 Trigger is activated for test purposes.
Parameter: Max. Trigger Active/Max. Trigger/Max. Trigger Hysteresis
•
Default setting (_:9871:101) Max. trigger active = yes
•
Default setting (_:9871:105) Max. trigger = 1.200 A
•
Default setting (_:9871:113) Max. trigger hysteresis = 0.980 p.u.
With the Max. trigger active parameter, you activate the level trigger in order to monitor the current in
the negative-sequence system and to prevent it from exceeding the set values.
Parameter Value
Description
yes
The current in the negative-sequence system is monitored for overcurrent.
no
The current in the negative-sequence system is not monitored for overcur-
rent.
The hysteresis is preset at the factory to 0.980 p.u. (equal to 2 %) of the parameter Max. trigger and can
be adjusted.
7.5.2.8
Fault Recorder
7.5 Trigger Functions 3-Phase
322 SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017

Siemens SIPROTEC 5 Specifications

General

Series	SIPROTEC 5
Communication Protocols	IEC 61850, DNP3, Modbus
Cybersecurity	Role-based access control, secure communication
Modular Design	Yes
Hardware Redundancy	Optional
Operating Temperature	-25°C to +70°C
Digital Inputs	Configurable, number depends on I/O modules
Digital Outputs	Configurable, number depends on I/O modules
Analog Inputs	Configurable, number depends on I/O modules
Current Transformer Inputs	Configurable, number depends on I/O modules
Voltage Transformer Inputs	Configurable, number depends on I/O modules
Time Synchronization	IRIG-B, SNTP, PTP
Protection Functions	Overcurrent, Differential, Distance, Over/Under Voltage, Frequency
Housing	19-inch Rack Mount
Dimensions	Depends on module configuration
Weight	Depends on module configuration
Voltage Input	24V DC, 48V DC, 110V DC, 125V DC, 220V DC, 250V DC