Siemens SIPROTEC 4 7SD80 User Manual

•
Manual overriding commands to manually update information on process-dependent objects such as
annunciations and switching states, e.g. if the communication with the process is interrupted. Manually
overridden objects are flagged as such in the information status and can be displayed accordingly.
•
Tagging commands (for "setting") of the information value of internal objects, for example switching
authority (remote/local), settings group switching, data transmission block and deleting/presetting
metered values.
•
Acknowledgment and resetting commands for setting and resetting internal buffers or data states.
•
Information status command to set/reset the additional information "information status" of a process
object, such as:
– Input blocking
– Output blocking
Command Sequence
Safety mechanisms in the command sequence ensure that a command can only be released after a thorough
check of preset criteria has been successfully concluded. Standard Interlocking checks are provided for each
individual control command. Additionally, user-defined interlocking conditions can be programmed separately
for each command. The actual execution of the command is also monitored afterwards. The overall command
task procedure is described in brief in the following list:
Functional Description
Check Sequence
Please observe the following:
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Command Entry, e.g. using the keypad on the local user interface of the device
– Check Password → Access Rights
– Check Switching Mode (interlocking activated/deactivated) → Selection of Deactivated interlocking
Recognition.
•
User configurable interlocking checks
– Switching Authority
– Device Position Check (set vs. actual comparison)
– Interlocking, Zone Controlled (logic using CFC)
– System Interlocking (centrally, using SCADA system or substation controller)
– Double Operation (interlocking against parallel switching operation)
– Protection Blocking (blocking of switching operations by protective functions).
2.18.3
2.18.3.1
Functions
2.18 Breaker Control
SIPROTEC 4, 7SD80, Manual 195
E50417-G1100-C474-A2, Edition 02.2018

Siemens SIPROTEC 4 7SD80 Specifications

General

Brand	Siemens
Model	SIPROTEC 4 7SD80
Category	Power distribution unit
Language	English