Siemens SION 3AE5 Operating Instructions Manual
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Siemens SION 3AE5 Operating Instructions Manual

Vacuum circuit-breaker
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®
SION
Vacuum circuit-breaker
7.2 kV – 17.5 kV, 16 kA – 40 kA
24 kV, 16 kA – 25 kA
OPERATING INSTRUCTIONS
© Siemens AG 2019. All rights reserved.
Order no.: 9229 0025 176 0A
Version: 07.2019 en

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  • Page 1 ® SION Vacuum circuit-breaker 7.2 kV – 17.5 kV, 16 kA – 40 kA 24 kV, 16 kA – 25 kA OPERATING INSTRUCTIONS Order no.: 9229 0025 176 0A Version: 07.2019 en © Siemens AG 2019. All rights reserved.

  • Page 2: For Your Safety

    For your safety Signal terms and Personal injury hazards are classified according to ISO 3864-2 using the keywords definitions DANGER, WARNING and CAUTION. DANGER Indicates a hazard with a high degree of risk which, if not avoided, will result in death or serious injury.

  • Page 3: Table Of Contents

    Contents For your safety ..............................2 List of abbreviations ............................4 Transport, storage and packing ........................5 Transport ................................5 Unpacking ................................6 Reuse of transport unit ............................10 Storage ................................10 General information ............................11 Areas of application ............................11 Standards ................................

  • Page 4: List Of Abbreviations

    List of abbreviations BGBl Bundesgesetzblatt (German Federal Law Gazette) Close-Open Deutsches Institut für Normung (German Institute for Standardisation) International Electrotechnical Commission IP plate Internal arc protection plate Open NC contact Pole-centre distance RöV Röntgenverordung (German X-Ray Ordinance) NO contact Verband Deutscher Elektrotechniker (Association of German Electrical Engineers) 9229 0025 176 0A 2019-08-05...

  • Page 5: Transport, Storage And Packing

    Transport, storage and packing Transport, storage and packing Transport WARNING Unsuitable lifting gear Incorrectly dimensioned slings or incorrectly adjusted lifting gear may cause the transport unit to fall down. • Do not stand below suspended loads. • Select lifting gear, transportation and slinging equipment according to the weight of the transport unit, including any packaging, such as transport pal- lets.

  • Page 6: Unpacking

    Transport, storage and packing Transporting with crane or fork-lift truck Fig. 1 Transporting the pallet with carton Transporting with packing Transport the transport unit to the installation site or storage location • with a fork-lift truck or • with fixing gear suspended from a crane at a sling angle of approx.
  • Page 7 Transport, storage and packing Note Risk of tipping over due to shift in centre of gravity! Vacuum circuit-breakers with mounted contact arms may tip onto the contact sys- tem if not fixed. Before undoing the belt straps, ensure that the vacuum circuit-breaker is posi- tioned safely and hook fixing gear to the points marked with crane hooks (see Fig.
  • Page 8 Transport, storage and packing Fig. 3 Example - unpacking the fixed mounting ver- Fig. 4 Example - unpacking version with withdrawa- sion ble part Transportation to the • Remove all tensioning belts and bits of fastening wood. mounting location • Remove the supplementary equipment and store safely in the packaging for later installation.
  • Page 9 Transport, storage and packing Fig. 7 Transporting, only for 31.5 kA with distance Fig. 8 Transporting, only for 24 kV with 2000 A / between pole centres 150/160 2500 A • Hang the slinging gear only into the crane eyes. •...

  • Page 10: Reuse Of Transport Unit

    Attach supplementary equipment. • Close carton securely. • Before returning to the factory, ask the responsible Siemens representative for a returned products number (see also “Service”, on page 63). • When returning a vacuum circuit-breaker, always specify the type and serial number (see “Name plate”, on page 31).

  • Page 11: General Information

    VDE 0671-1) is maintenance-free for up to 10 000 operating cycles. 30 000 operating cycles require maintenance work that must only be performed by personnel trained by Siemens (see also “Maintenance” on p. 61). 9229 0025 176 0A 2019-08-05...

  • Page 12: Standards

    General information ® Intended use SION vacuum circuit-breakers are suitable for switching any type of alternating cur- rent circuits under normal operating conditions, such as: • Overhead lines • Cables • Transformers • Capacitors • Motors ® SION vacuum circuit-breakers operate in continuous, periodic and short-term op- eration.

  • Page 13: Description

    Description Description Design The images shown are examples; not all the variants of the vacuum circuit-breaker are shown here. Fig. 9 12 kV, operating mechanism side, with sepa- Fig. 10 12 kV, pole side, without separating shells rating shells towards system side Fig.
  • Page 14 Description Fig. 13 17.5 kV, operating mechanism side, with sep- Fig. 14 17.5 kV, pole side, without separating shells arating shells (towards operating mechanism side) Fig. 15 17.5 kV, operating mechanism side, with sep- Fig. 16 17.5 kV, operating mechanism side, with sep- arating shells towards operating mechanism arating shells towards operating mechanism side and with withdrawable part...
  • Page 15 Description Operating mechanism The operating mechanism contains all the electrical and mechanical components re- quired to close or open the vacuum circuit-breaker. Isolators transfer the switching movement to the pole assemblies. The operating mechanism is covered by a removable cover (20.1). Operating and indicator elements Fig.
  • Page 16 Description Secondary equipment Fig. 19 Open operating mechanism Auxiliary switch (-S1) 54.3 Position switch (-S3), control for (-K1) anti-pumping device Low-voltage plug connector (-X0), (optional) 54.4 Position switch (-S4), message “Closing spring charged” Plug (Q0-X1.1, Q0-X1.2, Q0-X1.3) only when ordering the 54.6 Position switch (-S6), circuit-breaker tripping signal 20-pole or 30-pole connector strip (not shown)
  • Page 17 Description Fig. 20 Open operating mechanism Auxiliary switch (-S1) operated interlock (optional) Low-voltage plug connector (-X0), (optional) 54.6 Position switch (-S6), circuit-breaker tripping signal Plug (Q0-X1.1, Q0-X1.2, Q0-X1.3) only when ordering the (optional, not shown) 20-pole or 30-pole connector strip (not shown) Closing spring 33.2 Plugs (-X01) and (-X02) for withdrawable part (optional)
  • Page 18 3AX11 releases. For the permitted possi- ble combinations of the additional equipment as well as special designs, refer to cat- alogue HG11 or contact the competent Siemens agency. 9229 0025 176 0A 2019-08-05...
  • Page 19 Description Motor (-M1) After the supply voltage is applied and if the closing spring is discharged, the motor starts immediately and is automatically deactivated internally after charging has taken place. Power consumption see table Fig. 22. In the short charging time, the motor operates in the overload range.
  • Page 20 Description Anti-pumping device (-K1), auxiliary contactor (-K1) If simultaneous electrical CLOSE and OPEN commands are continuously applied to the vacuum circuit-breaker, it returns to the open position after being closed. The function of the auxiliary contactor (-K1) causes the vacuum circuit-breaker to pause at this point until the CLOSE command is given again.
  • Page 21 Description 1st shunt release (-Y1) In the case of the 1st shunt release (-Y1), the electrically fed tripping pulse is passed to the "OPEN" latch by means of a directly acting magnet armature, thus switch- ing off the vacuum circuit-breaker. The 1st shunt release (-Y1) is not designed for continu- ous operation and is terminated within the circuit-breaker via the auxiliary switch (-S1) at the factory.
  • Page 22 Description Auxiliary switch (-S1) The auxiliary switch (-S1) is available for delivery in two versions: With 6 NO contacts or 12 NC contacts each. Contacts available on the customer's premises - see cir- cuit diagram supplied. Fig. 28 Auxiliary switch (31) Power consumption Rated insulation voltage: 250 V AC/DC...
  • Page 23 Description Circuit-breaker tripping signal (-S6) 3AX4206-0A The position switch (-S6) makes contact briefly when the vacuum circuit-breaker is opened by means of an elec- trical release. This contact can be used for a signal. Fig. 29 Circuit-breaker tripping signal (54.6) A further shunt release, current transformer-operated release or undervoltage re- lease can be installed as a 2nd or 3rd release.
  • Page 24 Description 2nd shunt release 3AX1101-.. Fig. 32 2nd shunt release (51.2) Fig. 33 2nd shunt release (51.2) The 2nd shunt release (-Y2) is installed whenever more than one shunt release is needed. In this version, the electrical “open” command is passed by means of a magnet ar- mature to the “OPEN”...
  • Page 25 Description C.t.-operated releases (-Y4), (-Y5) 3AX1102-.., (-Y6) 3AX1104-.. Fig. 34 C.t.-operated releases (51.3) Fig. 35 C.t.-operated releases (51.3) The c.t.-operated releases (-Y4), (-Y5) or (-Y6) consist of an energy store, an un- latching fixture and an electromagnetic system. If the tripping current is exceeded (90 % of the c.t.-operated release's rated current), the stored energy mechanism is unlatched, thus initiating opening of the vacuum circuit-breaker.
  • Page 26 Description Undervoltage release (-Y7) 3AX1103-.. Note Damage due to missing or incorrect series resistor Operation without series resistor (-R1) can cause damage. The undervoltage release (-Y7) may only be operated with the supplied series re- sistor (-R1). For circuits (mechanical or electrical), the undervoltage release 3AX1103-.. must be connected to control voltage, as otherwise closing is not possible (refer to “Remov- ing the transport block from the undervoltage release”, page 48).
  • Page 27 Description Heater (-R01) for condensation water protection (optional) The heater minimises condensation and corrosion of the vacuum circuit-breaker. To this end, the heater has to be connected to the supply voltage (see circuit diagram included with the delivery). Fig. 38 Example - heating (59.4) WARNING Hot surfaces!

  • Page 28: Interlocks

    Description Interlocks WARNING Danger of crushing due to sudden movement of components Mechanical parts can move quickly, even if they are remote-controlled. Contact with mechanical parts or parts under spring charge can lead to crushing of body parts. • Do not reach into openings. •...
  • Page 29 Description 35 ±0.3 mm Fig. 39 Mechanical interlock Stroke in the OPEN switch position (min. 5 mm, max. 10 mm) Interrogation or actuation component (cross-section max. 14 mm x 3 mm, actuation force min. 50 N, max. 450 N) c + d Refer to dimension drawing Sectional view View from below...
  • Page 30 Description Key-operated interlock 3AX1437-.. (optional) If the vacuum circuit-breaker is equipped with a key-op- erated interlock, it is possible to mechanically prevent both manual closing and electrical closing (position switch -S12). To lock the vacuum circuit-breaker, press and hold the OPEN pushbutton until the key is turned to the CLOSED position (vertical).

  • Page 31: Name Plate

    Dimensions and weights The dimensions of the vacuum circuit-breaker can be taken from the relevant dimen- sional drawing. If needed, they can be obtained from your Siemens representative. The weight is indicated on the vacuum circuit-breaker name plate (see Fig. 42) or refer to the associated dimension drawing.

  • Page 32: Ambient Conditions

    Description Ambient conditions Occasional condensation may occur under these ambient conditions. ® SION vacuum circuit-breaker are suitable for use in the following climate classes according to IEC 60721, part 3-3: +55 °C Class • Climatic ambient conditions: 131 °F • Biological ambient conditions: •...

  • Page 33: Switching Times

    Circuit diagrams The circuit diagrams for the vacuum circuit-breaker are compiled depending on your order. The corresponding circuit diagram book can also be downloaded from the following URL on the internet: https://support.industry.siemens.com 9229 0025 176 0A 2019-08-05...
  • Page 34 Description Blank page 9229 0025 176 0A 2019-08-05...

  • Page 35: Installation

    Installation Installation DANGER High-voltage - danger to life Touching live parts causes an electric shock. • Do not touch live parts! • When work is performed on the switchgear, it must be de-energised and earthed! • Take safety measures to prevent reclosing! •...

  • Page 36: Attachment In The Switching Cubicle

    Installation Note For preliminary work, the vacuum circuit-breaker must be • secured against falling over • placed onto a suitable base or • prepared for installation while suspended from a crane. Note Material damage due to maloperation! ® If the SION vacuum circuit-breaker is triggered manually with the cover removed and the mechanical interlock actuated, the operating mechanism of the vacuum circuit-breaker will be irreversibly damaged.
  • Page 37 Installation Removing and mounting covers Remove the covers to mount the fixing straps. Removing and mounting the cover Fig. 48 Removing the cover Fig. 49 Mounting the cover Removing • Pull off both the engaging hooks of the cover (20.1) simultaneously. •...
  • Page 38 Installation Removing and mounting the cover 4 ±0.4 Nm Fig. 50 Removing the cover Fig. 51 Mounting the cover Removing • Loosen both upper M6 hexagonal bolts but do not unscrew them. • Unscrew the bottom four M6 hexagonal bolts with the contact washers. •...
  • Page 39 Installation Mounting the retaining angle for the cable outlet The version with plug or terminal strip (without low-voltage plug) is supplied with a retaining angle (60) and fixing materials in the supplementary equipment. The re- taining angle serves to bundle and protect the cables coming from the low-voltage interface.
  • Page 40 Installation Mounting the system-side separating shells System-side separating shells (47) can be used to insulate the individual poles from each other if there is restricted terminal space. When using system-side separating shells (47), you can use main conductors with a max. diameter or cross-section of 60 mm. Fig.
  • Page 41 Installation Fig. 57 Mounting separating shells Fig. 58 Engaging separating shells • Place separating shell (47) onto the rib (arrow a) from the top at a slight angle. • Push the bottom part of the separating shell (47) against the pole shell (46) until it engages audibly.
  • Page 42 Installation mechanism (see “Connecting low-voltage”, page 46). Fig. 61 Example with withdrawable part Installation of the fixed-mounted circuit-breaker on a vertical plane (using fix- ing straps) The framework or the frame must be made to suit the service conditions and have sufficient load bearing capacity and stability.
  • Page 43 Installation Mounting the IP plate (optional) The IP plate (internal arc protection plate) is a protective plate that separates the high-voltage area from the drive area and provides additional protection in the event of a fault arc. Note The IP plates are classed as accessories. Whether mounting is possible depends on the version of the switching device.
  • Page 44 Installation Mounting the shaft covers Note The shaft covers are classed as accessories. Whether mounting is possible depends on the version of the switching device. You can ask the manufacturer if mounting is possible. A mounted shaft cover prevents access to open moving parts and prevents inju- ries.

  • Page 45: Earthing

    Installation Earthing Note ® If the SION vacuum circuit-breaker is installed into an earthed metal framework and is connected permanently and electrically conductive, no separate earthing is required. Place serrated washers under the screw heads when fixing the vacuum circuit- breaker in this case.

  • Page 46: Connecting Low-Voltage

    Installation Connecting low-voltage Connect the low-voltage connection cables in the customer's switchgear in such a way that safe operation as per the supplied circuit diagram is guaranteed. Low-voltage interface (-X0), 64-pole 3AX1134-.. For the connection of the control cable, the standard ver- sion of the vacuum circuit-breakers is equipped with a 64-pole low-voltage interface (-X0).
  • Page 47 Installation Connecting the low-voltage for the withdrawable part Fig. 72 Laying the cable harness Fig. 73 Laying the cable harness Laying the cable harness • Feed the cable harness of the withdrawable part with the plugs (-Q0) along the (see Fig. 72) side wall through the vacuum circuit-breaker.
  • Page 48 Installation Removing the transport block from the undervoltage release Undervoltage release (-Y7) The vacuum circuit-breaker with an undervoltage release (-Y7) 3AX1103 is supplied available? with a transport block. • Remove the cover (see “Removing and mounting covers” page 37). • Shift the retaining screw of the striker pin from posi- tion A to B (see the reference note in the operating mechanism of the vacuum circuit-breaker).

  • Page 49: Electrical Connection Of The Main Conductors

    • impact depths for dowel pins or coiled spring pins, see table “Screw-in depths”, Fig. 79. The conductor bars can be purchased from the Siemens Service Center. Preparing contact surfaces Note Clean silver spray-plated and copper spray-plated connecting surfaces with a cloth;...
  • Page 50 Installation Use a steel brush to brush contact surfaces of the conductor bars (cross-wise) until they are bright and wipe them off with a clean cloth. After cleaning, very lightly grease the bright contact surfaces with acid-free Vaseline (e.g. Shell-Vaseline 8420) and screw together immediately. Screw-in depths from contact surface in the upper and lower terminals Rated voltage U 7.2 - 17.5...
  • Page 51 Installation When tightening the screws, hold the nuts against the tightening torque with a suit- able screwdriver or socket spanner. Tightening torque for M12: 40 ±4 Nm M16: 100 ±10 Nm Tightening torques apply to greased threads only. Securing with a spiral The conductor bars can be secured against twisting with a spiral spring pin accord- spring pin ing to ISO 8748 or a dowel pin according to ISO 8752 —...
  • Page 52 Installation Fig. 84 Fitting the contact arms (22) Fig. 85 For contact arms with Ø 40 mm, inserting the contact arm adapter (22.2) on the rear • Fit the contact arms. • Mount separating shells (if present, see “Mounting the system-side separating shells”...
  • Page 53 Installation adapter) on one side of the inside (round outer edge) on the contact fingers with Molykote Longterm 2. • Fit contact system onto threaded rod and contact arm, observing position of the contact system (round outer edge towards contact arm). •...

  • Page 54: Inserting The Sion ® Vacuum Circuit-Breaker With Withdrawable Part

    Installation ® Inserting the SION vacuum circuit-breaker with withdrawable part Fig. 89 Example - inserting into the guide rails Fig. 90 Example - inserting and locking • Fit the vacuum circuit-breaker with withdrawable part into system-side guide rails. • Push the vacuum circuit-breaker with withdrawable part into the guide rails until they hit the side stops (large arrow), moving locking handles towards the middle of the withdrawable part (small arrows).
  • Page 55 Installation Fig. 91 Example - moving in the guide rails • Insert the handle of withdrawable part 3AX1430-2C into the coupling of the with- drawable part. • Turn inserted withdrawable part handle 3AX1430-2C clockwise in order to move the vacuum circuit-breaker to a perceivable end stop. Travel path lengths (optional): 180, 200 and 220 mm for all vacuum circuit-breakers up to 17.5 kV and 260 mm for all vacuum circuit-breakers with 24 kV.
  • Page 56 Installation Blank page 9229 0025 176 0A 2019-08-05...

  • Page 57: Operation

    Operation Operation DANGER High voltage - danger to life! Touching live parts causes an electric shock. • Check through all of the items on the checklist and ensure correct functioning before commissioning. • Do not touch live parts! • Ensure that the vacuum circuit-breaker is operated only by qualified person- nel who are familiar with the operating instructions and who observe the warning notices.

  • Page 58: First Closing Operation

    Do not put vacuum circuit-breaker back into operation. • If the malfunctions or the damage cannot be remedied, contact a sales repre- sentative or Siemens Service and, if necessary, send back the vacuum cir- cuit-breaker. Position indicator and spring state indicator when charging the closing...
  • Page 59 Operation Charging the closing spring WARNING Suddenly rotating hand crank when motor starts up Risk of injury if hand cranks other than the original hand crank are used. If the hand crank does not have a slip coupling, the hand crank will also rotate when the motor starts up.

  • Page 60: Closing

    Operation Closing Provided there is no lock-out due to a mechanical interlock, send the closing com- mand via the CLOSE pushbutton or the corresponding control unit until the vacuum circuit-breaker is closed, and shows and signals the CLOSED switch position. Change of the position indicator: ...

  • Page 61: Maintenance

    The highest permissible mechanical operating cycle number is: • 10 000 Operating cycles: Maintenance-free • 30 000 operating cycles: When maintenance is performed by Siemens author- ised personnel. Preliminary work • Prior to starting work on the vacuum circuit-breaker, observe the local safety regulations for high-voltage devices and the "5 safety rules"...

  • Page 62: Service Life Of The Vacuum Interrupters

    Replacing spare parts To ensure that the device operates reliably, spare parts are permitted to be replaced only by personnel trained and certified by Siemens. The vacuum circuit-breaker should be taken out of the switchgear or switch cabinet for servicing.

  • Page 63: Manufacturer's Product Liability

    If the packaging is no longer needed, it can be fully recycled. Hazardous substances When delivered by Siemens, the product does not contain any hazardous substanc- es within the scope of the Hazardous Substances Ordnance applicable to the terri- tory of the Federal Republic of Germany. For operation outside the Federal Republic of Germany, the applicable local laws and regulations must be complied with.
  • Page 64 Maintenance Blank page 9229 0025 176 0A 2019-08-05...

  • Page 65: Index

    Index Index Accessories available for order ......62 Installation altitudes ..........32 Altitude correction factor ........32 Installation position ..........36 Ambient conditions ..........32 Interlock, mechanical ........18 Anti-pumping device ..........18 Interlocks ............... 28 Anti-pumping device (-K1) ......17 IP plate ............
  • Page 66 Index Rated frequency ............ 31 Rated lightning impulse withstand voltage .... 31 Rated normal current ........31 Rated operating sequence ........31 Rated power frequency withstand voltage .... 31 Rated short-circuit breaking current ....31 Rated short-circuit duration ........31 Rated voltage ..........

  • Page 67: Central Legend

    Central legend Central legend Withdrawable part 57.2 Hand crank coupling Operating mechanism Operations counter 20.1 Cover 59.2 Mechanical interlock or sensing (optional) Name plate 59.3 Key-operated interlock (optional) Contact arm 59.4 Heater (-R01), for condensation water pro- tection (optional) 22.1 Threaded bolt 59.5 Electrical closing lock-out (-Y8E), (optional)
  • Page 68 Published by Siemens AG Smart Infrastructure Distribution Systems Schaltwerk Berlin Nonnendammallee 104 13629 Berlin Germany...

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