Siemens SIPROTEC 5 User Manual

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Chatter test time
During this second test time, the number of times a signal changes its state is checked once again. The
time begins when the chatter dead time expires. If the number of status changes is within the
permissible limits, the signal is released. Otherwise, an additional dead time begins, unless the maximum
number of chatter checks has been reached.
Enter a number between 2 and 65535 in this field. The number entered corresponds to the time in
seconds. An entry is possible here only if the number of chatter checks does not equal 0.
As soon as chatter blocking is set, the corresponding signal is assigned the oscillatory quality, and a corre-
sponding indication is entered in the operational log.
The following image shows an example of the usage of chatter blocking on a single-point indication (type
SPS). The number of permitted status changes is set to 5. After 5 status changes occur, the signal is set to the
original state and it is given the quality oscillatory.
[dwflatsp-140212-01.tif, 1, en_US]
Figure 3-41 Signal Change During Chatter Blocking
System Functions
3.6 Other Functions
94 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