Siemens SIPROTEC 5 User Manual

Logic
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Figure 8-26
Logic Diagram of the Supervision of the Device-Internal Analog-Digital Converters
When the output signal A/D converter monit. is active, certain protection functions are blocked to avoid
failures (see 11.5.8 Analog Channel Supervision via Fast Current Sum ).
i
i
NOTE
The parameters are fixed in the device and cannot be changed.
It is not necessary to change the parameters depending on the application.
Threshold Value
The threshold value is the lower limit of the operating range of the Supervision of the device-internal
analog-digital converters function.
The threshold value is fixed to 10 % of the device rated current.
Slope of the Characteristic 1
The component slope of characteristic 1 • Σ | i | takes into account permissible current-input errors, which
can occur in the case of small overcurrents.
The slope of characteristic 1 is fixed to 0.1.
Slope of the Characteristic 2
The component slope of characteristic 2 takes into account permissible current-input errors, which can occur
in the case of high overcurrents (high short-circuit currents).
Supervision Functions
8.4 Supervision of the Device Hardware
396 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