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General| Brand | Siemens |
|---|---|
| Model | SIPROTEC 7SS523 V3.3 |
| Category | Power distribution unit |
| Language | English |
Describes the overall operation of the SIPROTEC 7SS52 V4 protection system, comprising compact bay units connected to a central unit.
Details the SIPROTEC 7SS52 V4 applications for busbar and breaker failure protection in various voltage stations and switchgear configurations.
Describes the central unit's installation, modular design, front view, and its various modules and submodules.
Details the bay units' housing options, front view, modules, submodules, and design aspects for panel mounting.
Guides on setting control voltages for binary inputs and inserting buffer batteries for central and bay units.
Describes how to establish communication between the central unit and bay units using fiber-optic cables and setting addresses.
Guides on inserting the central unit and bay units into the project structure using the Device Catalog and setting properties.
Explains how to use DIGSI Plant Configuration to draw, parameterize, and assign bay units to create a complete substation model.
Describes the process of assigning configured bay units to the bay units in the Device Manager to enable substation chart visualization.
Explains the busbar protection function, its measurement methods, and ancillary functions for bus zone-selective protection and check zone.
Details the circuit breaker failure protection (CBF) function, its characteristics, and modes of operation for feeder and busbar faults.
Explains the end fault protection function for safeguarding the zone between CTs and circuit breakers when open.
Details the optional overcurrent protection as backup, its activation, parameters, and characteristics according to IEC standards.
Explains the backup breaker failure protection function, its activation, and parameter settings, working independently of the busbar protection.
Explains how to retrieve annunciations, operational measured values, and fault data using DIGSI or the device display.
Details options for interfering with functions and annunciations during operation, including creating records and blocking commands.
Provides guidance on installing and connecting the central unit and bay units, emphasizing safety precautions and proper handling.
Outlines the steps for checking electrical and optical links, including continuity, polarity, and proper connection of components.
Details the commissioning procedure, including tests with secondary values, switching operations, and primary tests by qualified personnel.
Explains performing checks using secondary values at current settings, detailing test setups for busbar-selective and check zone protection.
Explains how to analyze malfunctions of the protection system and its components, identifying potential causes and diagnostic information.
Offers a procedure for troubleshooting device defects, checking LEDs, auxiliary voltage, and re-initializing the device with DIGSI.
Recommends actions for component failures, including replacing modules, handling electrostatically endangered devices, and packing for shipping.
Offers an overview of available variants and ordering codes for the central unit and bay units, including necessary ancillary devices.
