Siemens SENTRON 3WA Air Manual
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Siemens SENTRON 3WA Air Manual

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Summary of Contents for Siemens SENTRON 3WA Air

  • Page 3 3WA Air Circuit Breakers Introduction Description Applications SENTRON Accessories Protection devices 3WA Air Circuit Breakers Inspection and maintenance Technical specifications Equipment Manual Integration in power distribution equipment Troubleshooting Disposal Appendix ESD guidelines List of abbreviations 05/2021 92310000002-03...
  • Page 4 Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.

  • Page 5: Table Of Contents

    Table of contents Introduction ............................15 Scope of validity of this document ..................15 Target readers of this documentation ................. 15 Technical Support ......................15 Reference documents ......................16 Advanced training courses ....................16 Safety instructions ......................17 1.6.1 Security information ......................18 1.6.2 Open Source Software .......................
  • Page 6 Table of contents 2.3.5.5 Neutral protection N ......................53 2.3.5.6 Ground-fault alarm ......................54 2.3.5.7 Ground-fault protection GF ....................55 2.3.5.8 Ground-fault protection GF Hi-Z ..................58 2.3.5.9 Directional short time dST ....................60 2.3.5.10 Reverse power protection RP ....................62 2.3.5.11 Enhanced protective functions EPF ..................
  • Page 7 Table of contents 2.7.2.8 Operator controls ......................116 2.7.2.9 Commissioning ........................ 118 2.7.2.10 Access protection functions....................122 2.7.2.11 Resetting to factory settings ..................... 126 2.7.2.12 System time ........................127 2.7.3 Status acquisition with breaker status sensor BSS200 ............129 Self-monitoring and diagnostics ..................130 2.8.1 Internal self-test .......................
  • Page 8 Table of contents 4.3.3.1 Description ........................168 4.3.3.2 Technical specifications ....................169 4.3.3.3 Installation ........................170 4.3.3.4 Article number ......................... 172 4.3.4 Emergency OPEN button ....................173 4.3.4.1 Description ........................173 4.3.4.2 Installation ........................173 4.3.4.3 Article number ......................... 173 4.3.5 IOM230 digital input/output module ................
  • Page 9 Table of contents 4.4.5 Trip alarm switch ......................202 4.4.5.1 Description ........................202 4.4.5.2 Technical specifications....................202 4.4.5.3 Installation........................203 4.4.5.4 Article number ......................... 203 4.4.6 Position signaling switch module for guide frame ............. 204 4.4.6.1 Description ........................204 4.4.6.2 Technical specifications....................
  • Page 10 Table of contents 4.8.3 Local electric close ......................249 4.8.3.1 Description ........................249 4.8.3.2 Installation ........................250 4.8.3.3 Connection ........................250 4.8.3.4 Activation ........................251 4.8.3.5 Article number ......................... 251 4.8.4 Locking provision for charging handle for padlocks............252 4.8.4.1 Description ........................
  • Page 11 Table of contents 4.8.13.2 Installation........................276 4.8.13.3 Activation / override ......................279 4.8.13.4 Article number ......................... 279 Interlocking ........................280 4.9.1 Mechanical interlocking (Bowden cable interlocking)............280 4.9.1.1 Description ........................280 4.9.1.2 Installation........................284 4.9.1.3 Article number ......................... 288 4.9.2 Interlocking of two circuit breakers using a Bowden cable..........
  • Page 12 Table of contents 4.11.2 Voltage tap module VTM ....................316 4.11.2.1 Description ........................316 4.11.2.2 Removal / installation ....................... 317 4.11.2.3 Article number ......................... 317 4.11.3 Option plug ........................318 4.11.3.1 Description ........................318 4.11.3.2 Removal / installation ....................... 319 4.11.3.3 Article number .........................
  • Page 13 Table of contents 4.16.1.1 Description ........................344 4.16.1.2 Technical specifications....................345 4.16.1.3 Installation........................346 4.16.1.4 Article number ......................... 346 4.16.2 Position signaling switch module for connection to the communication module ....347 4.16.2.1 Description ........................347 4.16.2.2 Installation........................347 4.16.2.3 Article number .........................
  • Page 14 Table of contents 6.1.9 Digital input / output module IOM230 ................383 6.1.10 Spring charging motor ..................... 384 6.1.11 Motor disconnect switch ....................384 6.1.12 Auxiliary switch ....................... 384 6.1.13 Ready-to-close signaling switch S20 ................. 385 6.1.14 Spring charge signaling switch S21 .................. 385 6.1.15 Trip alarm switches S24 and S25 ..................
  • Page 15 Table of contents 6.3.3.5 IT network capability ......................458 6.3.4 Other properties ......................459 Ambient conditions ......................460 Installation altitudes......................461 Standards ........................461 Approvals ........................462 Failure probability acc. to B10 and B10d ................463 Electromagnetic compatibility ..................466 Integration in power distribution equipment ...................
  • Page 16 Table of contents ESD guidelines ........................... 509 Electrostatic sensitive devices (ESD) ................. 509 List of abbreviations .......................... 511 3WA Air Circuit Breakers Equipment Manual, 05/2021, 92310000002-03...

  • Page 17: Introduction

    The information contained in this manual is provided for the benefit of: • Planners • Power distribution equipment manufacturers/builders • Commissioning engineers • Users • Maintenance personnel Technical Support You can find further support on the Internet at: TechnicalSupport (https://www.siemens.com/support-request) 3WA Air Circuit Breakers Equipment Manual, 05/2021, 92310000002-03...

  • Page 18: Reference Documents

    Distribution in Low-Voltage Networks), substantially extended and revised edition 1997 Siemens: Residual Current Protective Devices, Low-Voltage Circuit Protec- E10003-E38-9T-B3011 tion Technology Primer Siemens AG © 04 / 2009 Advanced training courses Find out about training courses on offer on the following link. Training for Industry (https://www.siemens.com/sitrain-lowvoltage) Here you can choose from: •...

  • Page 19: Safety Instructions

    Introduction 1.6 Safety instructions Safety instructions DANGER Hazardous voltage Will cause death, serious personal injury, or equipment damage. During operation, parts of the device or system are carrying hazardous electrical voltage. Improper handling of the device or system can result in death or serious injury, as well as significant material damage.

  • Page 20: Security Information

    Use of product versions that are no longer supported, and failure to apply the latest updates may increase customer’s exposure to cyber threats. To keep up to date with all the latest product updates, subscribe to the Siemens Industrial Security RSS Feed at (https://www.siemens.com/industrialsecurity). 1.6.2 Open Source Software This product, solution or service (“Product”) contains third-party software components.

  • Page 21: More Information On Open Source Software For 3Wa Circuit Breakers

    Product or any OSS components contained in it if they are modified or used in any manner not specified by SIEMENS. The license conditions may contain disclaimers that apply between you and the respective licensor.

  • Page 22: Standards

    Introduction 1.7 Standards Standards The 3WA1 air circuit breakers comply with the following standards: • IEC 60947-2 • IEC 60947-2 Annex F / CISPR 11/22 Class B • Climate-proof according to IEC 60068-2-30 3WA Air Circuit Breakers Equipment Manual, 05/2021, 92310000002-03...

  • Page 23: Description

    2.1.1 Properties The 3WA circuit breaker is the new generation of air circuit breakers in the Siemens AG portfolio. It is based on the proven and robust design of its predecessor 3WL. The technical data of the 3WA circuit breaker mechanics and the portfolio have been extended as compared with 3WL, and the electronic components have been completely redeveloped.
  • Page 24 • Integrated and shared communication concept with the 3VA molded case circuit breakers and the 7KM PAC measuring devices. Option for direct integration into the Siemens communication environment via optional accessories: – Communication modules (Plug and Play) for PROFINET IO, Modbus TCP –...

  • Page 25: Portfolio Of The 3Wa1 Circuit Breaker

    2.1 Overview - applications and portfolio • Accessories are designed for the maximum service life of the circuit breaker. • Support by CAx files, EPLAN macros and Siemens tools simplifies planning and integration of the circuit breaker into the overall installation.

  • Page 26: Applications

    Description 2.1 Overview - applications and portfolio • Low inspection/maintenance effort – Only inspection required – No relubrication of moving parts in the circuit breaker – Parts only need to be replaced during maintenance if this is deemed necessary based on the inspection results.
  • Page 27 Description 2.1 Overview - applications and portfolio 3WA Air Circuit Breakers Equipment Manual, 05/2021, 92310000002-03...

  • Page 28: Circuit Breakers And Non-Automatic Circuit Breakers

    Description 2.2 Circuit breakers and non-automatic circuit breakers Circuit breakers and non-automatic circuit breakers 2.2.1 Distinction between circuit breakers and non-automatic circuit breakers The 3WA can be used as a circuit breaker with electronic trip unit, but also as a non-automatic circuit breaker according to IEC 60947-2.

  • Page 29: Design

    Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.2 Design 2.2.2.1 Circuit breakers Arc chute (16) Locking provision for racking handle (option) Carrying handle (17) Label Labeling plate (18) Voltage tap module VTM (optional) Motor disconnect switch (option) or (19) Mechanical unlatching of the racking local electric close (S10) (option) handle...

  • Page 30: Guide Frame

    Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.2.2 Guide frame Arc chute cover (option) (10) Locking provision to prevent racking of the withdrawable circuit breaker with the control cabinet door open (option) Opening for crane hook (11) Locking provision to prevent opening of the control cabinet door when the circuit breaker is closed (option) Arcing openings...
  • Page 31 Description 2.2 Circuit breakers and non-automatic circuit breakers Rated-current coding Guide frames and withdrawable circuit breakers are equipped with a rated-current coding as standard. Rated-current coding ensures that only those circuit breakers whose guide frames are designed for the circuit breakers can be inserted into the guide frame. Guide frame, left inner side (right inner side accordingly) Coding pin on the racking rail in the guide frame Racking rail...
  • Page 32 Description 2.2 Circuit breakers and non-automatic circuit breakers For service purposes, the sliding covers can be opened and fixed manually with the aid of the shutter levers. Example: opening the lower sliding covers Light pressure on the shutter lever releases the fixation. The shutter levers return to the initial position and close the sliding covers.
  • Page 33 Description 2.2 Circuit breakers and non-automatic circuit breakers Locking provision for the shutter The locking provision secures the shutter levers with padlocks in different positions. This protects the openings defined by the shutter lever position against unauthorized alteration. • Locking in completely closed shutter position •...
  • Page 34 Description 2.2 Circuit breakers and non-automatic circuit breakers Locking provision for racking rails The locking provision prevents the insertion of a circuit breaker in the guide frame. For this purpose, the racking rails are locked with padlocks so that they cannot be pulled out again. Activation In order to activate the locking provision, once the circuit breaker has been removed, the racking rails are completely inserted into the guide frame and secured in this position with...

  • Page 35: Secondary Disconnect Terminals

    Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.2.3 Secondary disconnect terminals Description Internal electrical accessory components such as the closing coil receive their supply voltage via the secondary disconnect terminals. A maximum of four secondary disconnect terminal blocks are available for size 1 circuit breakers and up to five for sizes 2 and 3.
  • Page 36 Description 2.2 Circuit breakers and non-automatic circuit breakers Laying of cables NOTICE Damage to cables Cables in impermissible areas can be damaged. Route cables outside areas shown below. Arcing space If arc chute covers are provided, the auxiliary conductors must not be laid on these covers. Carrying handle Arcing openings Interlocks...

  • Page 37: Circuit Breaker Identification

    Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.3 Circuit breaker identification 2.2.3.1 Rating and accessory labels The rating and accessory labels provide identification of the circuit breaker. It contains the article number, equipment details, and further information on the circuit breaker. Article number circuit breaker shunt trip (ST2) or undervoltage release (UVR or UVR-t)
  • Page 38 Description 2.2 Circuit breakers and non-automatic circuit breakers Standards Technical specifications for IT system low-voltage network type Approvals such as CE, CCC, EAC or C-Tick Rated operational voltage Isolating function (10) Rated short-circuit breaking capacity Rated frequencies (11) Rated impulse withstand voltage Rated short-time withstand current (12) Rated insulation voltage...

  • Page 39: Guide Frame Rating Label

    Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.3.2 Guide frame rating label Article number guide frame Indicator “Further options” Rated operational voltage Circuit breakers that can be used Maximum rated current 3WA Air Circuit Breakers Equipment Manual, 05/2021, 92310000002-03...

  • Page 40: Operation

    Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.4 Operation 2.2.4.1 Charging the stored-energy spring To be able to close the circuit breaker, the stored-energy spring must be charged. Manually charging the stored-energy spring Actuating force Number of strokes Stored-energy spring is charged 1.

  • Page 41: Closing And Opening

    Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.4.2 Closing and opening Note The minimum time difference between ON and OFF command should be at least 100 ms. Conditions for ready-to-close status The conditions for the breaker’s ready-to-close status can be found in Chapter Commissioning checklist (Page 43).
  • Page 42 Description 2.2 Circuit breakers and non-automatic circuit breakers Switching on and off with spring charging motor and motor disconnect switch Remote switching Remote switching of the circuit breaker is possible as an option: • • Switching on takes place via the closing coil. •...

  • Page 43: Racking The Circuit Breaker In The Guide Frame

    Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.4.3 Racking the circuit breaker in the guide frame The withdrawable circuit breaker can be moved to three positions by means of the racking handle. The current position is indicated by the position indicator on the circuit breaker, see Chapter Circuit breakers (Page 27).
  • Page 44 Description 2.2 Circuit breakers and non-automatic circuit breakers Racking the circuit breaker NOTICE Material damage due to over-rotation of the racking handle Over-rotation of the racking handle beyond its end stop can damage the racking mechanism. Once the end stop is reached, the racking handle must be rotated counterclockwise to the rack-in position.

  • Page 45: Commissioning Checklist

    Description 2.2 Circuit breakers and non-automatic circuit breakers 2.2.4.4 Commissioning checklist Checks and work to be carried out Before commencing work on the device, observe the safety instructions in Chapter Safety instructions (Page 17). 1. Open the circuit breaker and discharge the stored-energy spring. 2.

  • Page 46: Protection System

    Description 2.3 Protection system Protection system 2.3.1 General description of function The protection system of the 3WA circuit breaker consists of: • Current sensors for measurement The current sensors installed in the 3WA circuit breaker feature a Rogowski coil and an energy core.

  • Page 47: Option Plug

    Description 2.3 Protection system 2.3.2 Option plug The option plug determines the current rating and the basic protective functions of the electronic trip unit of the 3WA circuit breaker. Article number (on top, not visible when plugged in) Current rating Basic protective functions Country of manufacture (on the bottom side, not visible when plugged in) The option plug can be replaced to adapt the circuit breaker to changing requirements.
  • Page 48 Description 2.3 Protection system Changing the current rating For the three sizes of the 3WA circuit breaker, the rated current I can be changed to the values given in the table below by means of the option plug. The selected value should correspond to the rated current of the power distribution system and must not exceed the maximum rated current of the circuit breaker I (see circuit breaker accessory label).

  • Page 49: Guideline For Setting The Protection Parameters

    SIMARIS design The Siemens SIMARIS design software tool is a simple and reliable tool for calculating and dimensioning networks. For more information on SIMARIS design, refer to the Internet (https://www.siemens.com/simaris).

  • Page 50: Description Of The Protective Functions

    Description 2.3 Protection system SIMARIS curves The Siemens software tool SIMARIS curves can be used to display the time-current characteristic for one or more devices. For more information on SIMARIS curves, refer to the Internet (https://www.siemens.com/simaris). 2.3.5 Description of the protective functions 2.3.5.1...

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