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Installation

52

9229 0025 176 0E

2021-11-15

Removing the transport block from the undervoltage release

Undervoltage release (-Y7)

available?

The vacuum circuit-breaker with an undervoltage release (-Y7) 3AX1103-.. is sup-
plied with a transport block.

• Remove the cover (see “Removing and mounting covers” page 40).
• Shift the retaining screw of the striker pin from position A to B (see the reference

note in the operating mechanism of the vacuum circuit-breaker).

• Turn the locking plate by 180° and cover the thread in position A.
• Screw in the retaining screw in position B.
• Mount the cover again in reverse order (see “Removing and mounting covers”

page 40).

Fig. 77

As-delivered condition – retaining screw in po-
sition A

Fig. 78

Remove the transport block

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Summary of Contents for SION

Page 1: ...it breaker 7 2 kV 17 5 kV 16 kA 40 kA 24 kV 16 kA 25 kA 12 kV 17 5 kV 31 5 kA for generator switching applications OPERATING INSTRUCTIONS Order no 9229 0025 176 0E Version 09 2021 en Siemens AG 2021 All rights reserved ...

Page 2: ...2 9229 0025 176 0E 2021 11 15 Service Contact partner for Siemens service 24 h Telephone 49 180 524 7000 Fax 49 180 524 2471 Email support energy siemens com Or via any local Siemens representative ...

Page 3: ...rmation 15 Areas of application 15 Standards 15 Scope of delivery 16 Description 17 Design 17 Interlocks 31 Name plate 34 Technical data 34 Ambient conditions 36 Installation altitudes 36 Switching times 37 Circuit diagrams 37 Installation 39 Attachment in the switching cubicle 39 Earthing 49 Connecting low voltage 50 Electrical connection of the main conductors 53 Inserting and racking the SION w...

Page 4: ...stitut für Normung German Institute for Standardisation IEC International Electrotechnical Commission O Open NC NC Contact PMA Pole centre distance NO NO Contact StrlSchG Radiation Protection Act StrlSchV Radiation Protection Ordinance VDE Verband Deutscher Elektrotechniker Association of German Electrical Engineers Order no Title 9229 0027 Important information on unpacking transporting and stora...

Page 5: ...s a hazard with a low degree of risk which if not avoided could result in mi nor or moderate injury Property damage is indicated as follows Means that property damage can occur if the appropriate precautionary measures are not taken Important information is marked with a pointing hand symbol Qualified personnel Qualified personnel are persons Who based on their professional training knowledge and ...

Page 6: ...to the instruc tions given in the individual sections High voltage Live parts Touching live parts results in a life endangering electric shock Establishing and ensuring a voltage free state at the work site for the duration of the work Before starting work observe the 5 safety rules in the order given in accordance with DIN EN 50110 1 Disconnect from the power supply Secure against re connection V...

Page 7: ...on of the skin Wear gloves with appropriate protection against penetration of grease or lubricant Subsequent attachments and fittings In the event of subsequent attachments or fittings e g locking parts in connection with switchgear ensure that fast moving parts are not additionally loaded with masses or forces and additional parts have sufficient clearance in particular from moving and live parts...

Page 8: ...riginal transport unit see Reuse of transport unit page 13 Type approval according to the Radiation Protection Act for merly German X Ray Ordinance Parasitic X ray emitters The vacuum interrupters installed in the switching devices are type approved as par asitic X ray emitters according to Section 45 of the Radiation Protection Act of the Federal Republic of Germany and comply with the requiremen...

Page 9: ...r transport no more than 3 identical transport units may be stacked on top of each other Observe loads specified on the transport unit Load securing Unsecured transport cargo The transport unit may slip or fall down Secure the load for transportation so that the transport unit cannot slip or fall Intermediate storage Place the transport unit on a level non slip and pressure resistant surface for i...

Page 10: ... floor The vacuum circuit breaker is attached to the pallet with belt straps It is not per mitted to transport the vacuum circuit breaker on the pallet without using belt straps see Fig 3 to Fig 4 Keep box for reuse Risk of tipping over due to shift in centre of gravity Vacuum circuit breakers with mounted contact arms may tip onto the contact system if not fixed Before undoing the belt straps ens...

Page 11: ...ur Do not use the vacuum circuit breaker Send it back in its original transport unit see Reuse of transport unit page 13 Transportation to the mounting location Remove all tensioning belts and bits of fastening wood Remove the supplementary equipment and store it safely in the packing for later installation Shifted centre of gravity If the vacuum circuit breakers are lifted with contact arms mount...

Page 12: ...ne for further work steps Material damage due to incorrect mounting of sling gear The holders 49 will be damaged if ropes or similar slings are fastened below the holders 49 Only use the crane eyes to fasten the slinging equipment Keep the supplementary equipment on hand for installation Fig 5 Transporting by crane hook Fig 6 Transporting on snap hooks Fig 7 Transporting only for 31 5 kA with dist...

Page 13: ...ge if stored improperly Failure to observe the storage conditions shortens the storage life and the vacuum circuit breaker may be damaged If the storage conditions listed below are met the vacuum circuit breaker can be stored for up to a year in its transport unit If the storage conditions are not met the vacuum circuit breaker cannot be stored in the transport unit for longer than 6 months If sto...

Page 14: ...Transport storage and packing 14 9229 0025 176 0E 2021 11 15 Blank page ...

Page 15: ...or circuit breakers SION Vacuum circuit breakers operate in continuous periodic and short term op eration Standards The basic version and all listed configurations of the vacuum circuit breakers are type tested devices as per IEC The SION vacuum circuit breakers comply with the following standards SION Vacuum circuit breakers meet the requirements for the classification for cir cuit breakers C2 E2...

Page 16: ...onnector strip Operating instructions and unpacking instructions Circuit breaker specific circuit diagrams Scope of delivery optional Supplementary equipment with contact arms and systems Insulating shells on the system side Hand crank circuit breaker Hand crank withdrawable part Supplementary equipment with fixing brackets and fixing materials for fixed mounting Supplementary equipment with cable...

Page 17: ...hells for system side Fig 11 17 5 kV 31 5 kA 1250 A operating mecha nism side with withdrawable part Fig 12 17 5 kV 31 5 kA 1250 A pole side with with drawable part without insulating shells for system side 10 Withdrawable part 20 1 Cover 21 Name plate 32 Low voltage plug connector X0 optional 41 Operating mechanism side insulating shell optional 42 Pole head 43 Vacuum interrupter 44 Pole contact ...

Page 18: ...um circuit breaker Fig 13 24 kV 16 25 kA 2500 A operating mecha nism side with withdrawable part Fig 14 24 kV 25 kA 2500 A pole side with with drawable part without insulating shells for system side 10 Withdrawable part 20 1 Cover 21 Name plate 32 Low voltage plug connector X0 optional 42 Pole head 43 Vacuum interrupter 44 Pole contact plate 45 Insulator 46 Pole shell 47 Insulating shell to system...

Page 19: ...ich you will find the hand crank cou pling 57 2 of the gear unit To prevent electrical and manual closing some designs of the vacuum circuit break er can be fitted with a key operated interlock 59 3 Indicators The charge state of the springs is indicated by the spring state indicator 55 1 The position indicating device 56 3 shows the CLOSED or OPEN switching state The operating cycle counter 58 in...

Page 20: ...noid Y9 53 Motor M1 charging the closing spring 54 1 Position switch S12 prevents electrical closing in mechanical interlock not shown 54 2 Position switch S21 motor control 54 3 Position switch S3 control for K1 anti pumping device 54 4 Position switch S4 signal Closing spring charged 54 6 Position switch S6 circuit breaker tripping signal optional not shown 55 Closing spring 55 1 Spring state in...

Page 21: ...pring 54 1 Position switch S12 prevents electrical closing in mechanical interlock not shown 54 2 Position switch S21 motor control 54 3 Position switch S3 control for K1 anti pumping device 54 4 Position switch S4 signal Closing spring charged 54 6 Position switch S6 circuit breaker tripping signal optional not shown 55 Closing spring 55 1 Spring state indicator 56 3 Position indicator CLOSED OPE...

Page 22: ...liary switch optional S1 6NO 6NC 3SV9473 12NO 12NC 3SV9474 Position switch 3AX4206 0A for signal Closing spring charged S4 Circuit breaker tripping signal 3AX4206 0A S6 Low voltage interface optional X0 Plug connector with sleeve housing 64 pole External cable harness with plug connector with sleeve housing 64 pole internal connector strip 20 pole or 30 pole Q0 X1 1 Q0 X1 2 Q0 X1 3 Operations coun...

Page 23: ...iately and is automatically deactivated internally after charging has taken place For power consumption see table Fig 20 In the short charging time the motor operates in the overload range See Fig 21 for the rated current for the required motor short circuit protection The motor requires 60 s between each new charging The motor protection devices are not included in the de livery of the vacuum cir...

Page 24: ...uxiliary contactor 34 The closing solenoid Y9 unlatches the charged closing spring and switches the vacuum circuit breaker on elec trically It is available for DC or AC voltage The closing solenoid Y9 is not designed for continuous operation and is terminated within the circuit breaker via the auxiliary switch S1 at the factory The operator s supply voltage is permitted to deviate1 from the rated ...

Page 25: ...factory The operator s supply voltage is permitted to deviate from the rated supply voltage of the vacuum circuit breaker by 30 to 10 in the event of DC voltage and by 15 to 10 in the event of AC voltage The 1st shunt release Y1 DC 60 V is protected against overvoltage by a varistor Power consumption 300 W to 370 W VA 3AY1410 Fig 24 1st shunt release 51 1 Position switch S21 switches the motor off...

Page 26: ...ontacts each Contacts available on the customer s premises see cir cuit diagram supplied Fig 26 Auxiliary switch 31 Rated insulation voltage AC DC 250 V Insulation group C as per VDE 0110 Continuous current 10 A Closing capacity 50 A Rated operating voltage Rated normal current up to U V I A Ohmic load Inductive load T 20 ms AC 230 10 10 DC 24 10 10 DC 48 10 9 DC 60 9 7 DC 110 5 4 DC 220 2 5 2 ...

Page 27: ...interface X0 The 64 pole plug for the external terminal is suitable for crimp termination of control cables with a nominal cross section of 1 5 mm2 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 27 Circuit breaker tripping signal 54 6 Fig 28 Low voltage interface X0 64 pole 3AX1134 ...

Page 28: ...n and is termi nated within the circuit breaker via the auxiliary switch S1 at the factory The operator s supply voltage may deviate from the rated supply voltage of the vac uum circuit breaker by 30 to 10 in the event of DC voltage and by 15 to 10 in the event of AC voltage 2nd shunt release Fig 31 Power consumption 50 70 W VA 3AX1101 In the case of the 2nd shunt release Y2 the electrically fed t...

Page 29: ...ener gy mechanism is unlatched thus initiating opening of the vacuum circuit breaker For use of the transformer operated releases auxiliary transformers are also need ed for adaptation in addition to the main current transformers Transformer operated releases Y4 and Y5 are equipped with a rectifier Power consumption for 0 5 A and 1 A 6 VA at 90 of the transformer operated release s rated current a...

Page 30: ...aker via the energy storage mechanism Random tripping of the undervoltage release Y7 is generally performed by an NC contact in the tripping circuit but can also be done with the aid of an NO contact by short circuiting the solenoid coil If this release method is used the solenoid coil s short circuit current is limited by the built in resistor The undervoltage release Y7 can also be connected to ...

Page 31: ...tion component b on the system side detects the operating po sition CLOSED OPEN of the vacuum circuit breaker CLOSED switch position If the vacuum circuit breaker is closed actuation of the system s query and actuation component b is prevented A mechanical system in the switchgear truck or with drawable section reliably blocks movements of the circuit breaker on the switchgear truck or withdrawabl...

Page 32: ...ctuation component cross section max 14 mm x 3 mm actuation force min 50 N max 450 N c d Refer to dimension drawing X X Sectional view Z View from below The installation dimensions c d for the query or actuation component b are in cluded in the dimensional drawing supplied Fig 37 Mechanical interlock Z 35 0 3 mm ...

Page 33: ...as delivered condition the vacuum circuit breaker is locked with the key operated interlock and must be un locked for test switching operations and commissioning Fig 38 Key operated interlock 59 3 Note Closing of the vacuum circuit breaker can be prevented with the electrical closing lock out Y8E The electrical closing lock out Y8E enables operation of the vacuum circuit breaker if auxiliary volta...

Page 34: ... 17 5 kV 50 60 Hz Ir 2500 A Isc 40 kA tk 3 s Ud Up 42 kV 95 kV m 140 kg Rated operating sequence O 0 3 s CO 15 s CO Class as per IEC 62271 100 E2 C2 and M2 Made in Germany 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Rated voltage Ur at fr 50 60 Hz kV 7 2 12 17 5 24 Rated normal current Ir A 800 3150b 4000fc c 800 2500 Rated lightning impulse withstand voltage peak value Up kV 60 75 95a 95 125 Rated short dur...

Page 35: ...lse withstand voltage peak value Up kV 75 95a 95d Rated short duration power frequency withstand voltage RMS Ud kV 28 42a 38d Rated short circuit breaking current Isc kA 31 5 DC component of the rated short circuit breaking current Isc kA 65 Rated short circuit breaking current Ima kA 87 Pole centre distance mm 210 275 Distance between lower and upper terminal mm 275 310 Standard rated operating s...

Page 36: ...es 3S24 1 Minimum temperature limit 5 C 23 F with addition A40 to 25 C 13 F 2 Without occurrence of salt fog and simultaneous condensa tion 3 Class 3C3 H2S 20 ppm in dry air 50 with order suffix D20 4 Restriction Clean insulation parts 5 Average value measured over 24 hours 6 Average value measured over 1 month Fig 43 Ambient conditions 55 C 131 F 5 C 1 23 F 1 95 5 90 6 5 U U0 x Ka U Rated withsta...

Page 37: ...me period from the end of the current flow in all poles up to the start of the current flow in the first pole 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 Closing time 60 ms Opening time 1st shunt releas...

Page 38: ...Description 38 9229 0025 176 0E 2021 11 15 Blank page ...

Page 39: ... event of such incorrect operation Use suitable means to prevent the SION vacuum circuit breaker from closing if the cover has been removed and the mechanical interlock has been actuated Attachment in the switching cubicle The vacuum circuit breaker is delivered in the OPEN switch position and with the closing spring discharged Before installing the vacuum circuit breaker remove the transport aids...

Page 40: ...ing Pull off both the engaging hooks of the cover 20 1 simultaneously Swing cover 20 1 forward and then remove forwards and upwards Installation Insert the cover 20 1 into the guide from the top do not jam and swing it down Let both engaging hooks of the cover 20 1 fully engage Fig 47 Removing cover made from insulating materi al Fig 48 Mounting cover made from insulating material ...

Page 41: ...ashers Lift the cover 20 2 slightly upwards and remove Installation Position the openings of the cover 20 2 over the upper hexagonal bolts and the contact washers and hook in the cover Put contact washers on the hexagonal bolts with the gearing facing the cover 20 2 and screw M6 hexagonal bolts in with a tightening torque of 12 Nm Fig 49 Removing metal cover example Fig 50 Mounting metal cover exa...

Page 42: ...re suitable for single use only Remove cover see Removing and mounting cov ers page 40 If present pull off the plastic cover 61 toward the front Mount the cable outlet 60 with the cable harness so that the cable harness is routed to the back of the pole shells Fit the cable outlet with the self tapping screws Torx screwdriver size 20 and a tightening torque of 3 Nm Attach the plastic cover 61 from...

Page 43: ...nto previously mounted threaded rods of main con ductors for connecting the main conductors see Mounting conductor bars page 54 Place insulating shell 47 onto the pole shell 46 and engage into the guide Engage the hooks by hand if necessary Press upper and lower insulating shell 48 horizontally against the pole shell 46 until they engage audibly Fig 52 Up to 17 5 kV mounting insulating shells Fig ...

Page 44: ...various installation types Use M10 screws strength class 8 8 for fastening The binding dimension draw ings are relevant Fixing on the mounting surface Use 4 M10 screws and washers to screw the fixed mounted circuit breaker onto the mounting surface from below Tightening torque 48 4 Nm greased threads only Fixing on the withdrawable part For fixing to the withdrawable part remove the cover prior to...

Page 45: ...rame must be made to suit the service conditions and have sufficient load bearing capacity and stability Remove the fixing straps from the supplementary equipment and mount them as shown in the installation drawing Tightening torque 24 Nm Installation of the vacuum circuit breaker on a vertical plane Fig 60 Example with withdrawable part Fig 61 Mounting the fixing straps Fig 62 Mounting the fixing...

Page 46: ...ivided protective plates on both sides optional only for 31 5 kA and distance between pole centres 150 160 mm M8 24 Nm M8 24 Nm Cover remains mounted Remove fixing elements and installation drawing from the supplementary equipment Fig 63 Guide continuous protective plate 62 between pole shell and operating mechanism hous ing and mount on the operating mechanism housing Fig 64 Mount the protective ...

Page 47: ...ate Insert M6 hexagonal bolt polyamide with washer through a hole in the trans parent insulating plate screw on with spacer sleeve on the back and secure hand tight Repeat the work steps for all other holes Guide the fully assembled insulating plate between the pole shell and the oper ating mechanism housing position it on the angled protective plate and then on the operating mechanism housing 20 ...

Page 48: ... breaker shaft cover prevents access to open moving parts and prevents injuries A circuit breaker shaft cover can be mounted on both sides to cover and prevent contact with the circuit break er shaft Insert expansion rivet in circuit breaker shaft cover step 1 Mount circuit breaker shaft cover with the fastening elements and the self tapping screws Torx T20 on the vacuum circuit breaker step 2 Tig...

Page 49: ...voltage drop of 3 V can be conducted to the provided earthing point see IEC 62271 200 Remove hexagonal bolt M12 with washers from the supplementary equipment or if mounted completely unscrew from the earthing terminal Observe the order of the fixing elements Place the washer ring main cable of earthing conductor and contact washer SN 70093 with the teeth facing the operating mechanism housing unde...

Page 50: ...tage interface X0 The 64 pole plug for the external terminal is suitable for crimp termination of control and signalling lines with a cross section of 1 5 mm2 to 2 5 mm2 Fig 71 Low voltage interface X0 32 Remove the cover for the low voltage interface refer to Removing and mounting covers page 40 Insert flat head screwdriver size 0 5 mm x 3 mm into the plug WAGO 231 110 026 000 Insulation stripped...

Page 51: ... spring state indicator Laying the cable harness see Fig 74 Feed the cable harness of the withdrawable part with the plugs Q0 through the vacuum circuit breaker Fix the cable harness to the right side wall with cable straps Mounting the plug Insert the plug bottom Q0 into the frame as far as it will go and let it engage Wire the plug Q1 and insert it see Wiring of connectors Q0 X1 1 Q0 X1 2 Q0 X1 ...

Page 52: ...emoving and mounting covers page 40 Shift the retaining screw of the striker pin from position A to B see the reference note in the operating mechanism of the vacuum circuit breaker Turn the locking plate by 180 and cover the thread in position A Screw in the retaining screw in position B Mount the cover again in reverse order see Removing and mounting covers page 40 Fig 77 As delivered condition ...

Page 53: ...th do not brush Different connection materials aluminium copper must not be cleaned with the same cleaning tools Silver plated parts must not be bolted to aluminium bars Use a steel brush to brush contact surfaces of the conductor bars cross wise until they are bright and wipe off any residue using a clean cloth After cleaning very lightly grease the bright contact areas with acid free Vaseline e ...

Page 54: ...lements and washers for the con nection of the conductor bars When tightening the screws hold the nuts against the tightening torque with a suit able screwdriver or socket spanner Tightening torques apply to greased threads only M12 40 4 Nm M16 100 10 Nm Securing with a spiral spring pin The conductor bars can be secured against twisting with a spiral spring pin accord ing to ISO 8748 or a dowel p...

Page 55: ... the two versions below where it is technically relevant Mounting Siemens contacts Grease the screw in section of the threaded rods 22 1 with Vaseline see 1 Screw in the threaded rod 22 1 and observe the screw in depths A B see 2 see Table Screw in depths for screws or threaded rods from the contact sur face in the upper and lower connection page 54 Tighten the threaded rods 22 1 on the contact su...

Page 56: ...ith an open ended spanner in the contact sys tem see 3 Remove screw with washers and nut see 4 Fig 86 Attaching contact arms example with Ø 40 mm Fig 87 Inserting contact arm adapter on the back example for contact arms with Ø 40 mm 0025 70 22 22 1 0025 71 23 23 1 22 2 1 2 3 4 22 Contact arm 23 Contact system 22 1 Threaded rod 23 1 Contact finger 22 2 Contact arm adapter Attach the contact system ...

Page 57: ...r side on the contact fingers with Molykote Longterm 2 see 1 Attach the contact system to the threaded rod up to the contact arm Note the position of the contact system round outer edge towards the contact arm see 2 Tighten the contact system with the washer and hexagon nut see 3 Tightening torques for greased threads M12 40 4 Nm M16 100 10 Nm After installing the contact system grease the contact...

Page 58: ...3 M8x25 8 8 carriage bolts with square neck contact washers and hexagon nuts to the plate made of non ferromagnetic steel in the pan el or the rear of the guide frame Tightening torque for greased threads M8 25 2 Nm Fit bushing cap from the other side Fig 91 Mounting a bushing with mating contact to the guide frame or the plate Fig 92 Clean thread and mount for 1 250 A contact arms Fig 93 Mounted ...

Page 59: ...ecessary snap the hooks into place by hand Observe the alignment of the contact system The contact fingers must point to the system side Grease the inside of the contact system with Molykote Longterm 2 For the installation of the 1250 A contact system on the contact arm a Fig 94 Installation of the insulating shell Fig 95 Mounted insulating shell 0102 14 46 47 0102 18 Fig 96 Installation of the 12...

Page 60: ...rough the contact system see 4 Grease contact fingers with Molykote Longterm 2 Mounting 2 000 A third party contacts Grease the screw in area of the threaded rods with Vaseline Screw in the threaded rods and observe the screw in depths see Table Screw in depths for screws or threaded rods from the contact surface in the upper and lower connection on page 54 Tightening torques apply to greased thre...

Page 61: ...into place Repeat the work steps on all insulation shells Position the insulating shell on the previously mounted threaded rods Push the insulating shell against the pole shell until it engages audibly Check whether the engaging hooks of the insulating shell have engaged behind the insulation ribs If necessary snap the engaging hooks into place by hand Fig 99 Fixing of the additional insulating pl...

Page 62: ... Position 2000 A contact arm with the smooth side facing the pole contact plate Push the contact arm onto the threaded rods until full contact with the pole con tact plate is established Fig 103 Cleaning and mounting the 2000 A contact arms Contact surfaces Copper silver plated roughen x clean x x grease with Vaseline x x Fig 104 Completion of the 2000 A contact system sectional view Fig 105 Insta...

Page 63: ... in the groove see 3 Grease the contact fingers with Molykote Longterm 2 on the inside round outer edge of the contact system see 4 Mount the contact system on the threaded rod and contact arm paying attention to the position of the contact system in relation to the contact arm see 5 Tightening torque applies to greased threads only M12 40 4 Nm M16 100 10 Nm Grease contact fingers of the contact s...

Page 64: ...ocked in the switchgear The dimensions of the slots for receiving the lock on both sides of the system side guide rails must be observed For dimensions see Fig 107 Insert the withdrawable circuit breaker into the switchgear side guide rails see 1 Push the withdrawable circuit breaker into the guide rails until they hit the side stops large arrow moving locking handles towards the middle of the wit...

Page 65: ...ank of withdrawable part clockwise in order to move the vacuum circuit breaker to a perceivable end stop Remove the hand crank withdrawable part from the coupling of the withdrawa ble part Withdrawable part in service position Insert hand crank into the coupling of the withdrawable part Turn inserted hand crank anti clockwise in order to move the vacuum circuit breaker into the service position to...

Page 66: ...operations The maximum permissible torque on the drive spindle of the motor driven with drawable part is 25 Nm Clearance must be guaranteed under the motor driven withdrawable part down to the level of the running surfaces of the wheels The motor driven withdrawable part is inserted in the guide rails on the system side as described in chapter Inserting and racking the SION withdrawable circuit br...

Page 67: ...s on using the hand crank for the motor driven withdrawable part As long as secondary voltage is applied the motor driven withdrawable part must not be moved manually with the hand crank Risk of injury due to inserted hand crank on the withdrawable part As long as secondary voltage is applied the motor of the withdrawable part can be started at any time If the hand crank is inserted into the coupl...

Page 68: ... 9229 0025 176 0E 2021 11 15 3AX1430 8A under the following conditions Vacuum circuit breaker is open and switch position OPEN is displayed Low voltage plug is safely removed and secured against being plugged in again ...

Page 69: ...rmly If necessary check and adjust the customer s devices If there is a closing lock Is closing unlocked accordingly Test operation without supply voltage Charge the closing spring with the hand crank see Fig 112 then press the CLOSE pushbutton and once closing has been performed press the OPEN pushbutton Test operation with supply voltage To perform a test operation with the motor switch on the s...

Page 70: ...rlock 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 to the position indicator After closing and if necessary releasing the CLOSE pushbutton the closing spring is immediately automatically charged by the motor and the symbol for Closing spring charged becomes vis...

Page 71: ...e indicator does not change Discharging the closing spring To discharge the closing spring Deactivate the supply voltage On the vacuum circuit breaker actuate the OPEN CLOSE and OPEN pushbut tons manually one after the other This ensures that the vacuum circuit breaker is open and the closing spring is dis charged CLOSE OPEN ...

Page 72: ...re used If the hand crank does not have a slip coupling the inserted hand crank will also ro tate when the motor starts up The vacuum circuit breaker must only be charged with the original hand crank To do this fit the hand crank onto the hand crank coupling through the opening with the adapter pushed forward and turn clockwise until the spring state indicator changes over Remove hand crank The ad...

Page 73: ...sures that the vacuum circuit breaker is open and the closing spring is discharged Special operating conditions If the vacuum circuit breaker is operated under unfavourable conditions indoors heavy and frequent condensation dusty air etc we recommend cleaning the in sulating parts and possibly the outer parts of the circuit breaker more regularly Cleaning Insulating parts The insulating parts must...

Page 74: ...e with applicable regulations Materials The vacuum circuit breaker consists of the following materials Metals Steel partly phosphatised galvanised and yellow chromated or thick layer passivated Copper partly silver plated Aluminium partly silver plated Brass partly containing lead Chrome Insulating material partly glass fibre reinforced Epoxy resin polyester resin polyamide polycarbonate ABS PC mi...

Page 75: ...ntain 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 Further information Contact your Siemens Service Centre if you require further information See also Service on p 2 ...

Page 76: ...Maintenance 76 9229 0025 176 0E 2021 11 15 Blank page ...

Page 77: ...g spring 19 Siemens withdrawable part 65 third party withdrawable part 67 Hand crank coupling 19 21 Heater R01 20 22 31 High voltage protective earth 49 I Installation altitudes 36 Installation position 39 Insulated operating rod 19 Insulating shell 17 18 mounting 43 44 Insulator 17 18 Interlock mechanical 22 31 Interlocks 31 Intermediate position 65 K Key operated interlock 19 22 33 L Low voltage...

Page 78: ...4 Resistor R1 20 21 30 Retracted position 65 S Separating shell 17 43 Service position 65 Shunt release Y1 1st release 20 22 25 Y2 2nd release 20 22 28 Spiral spring pin 54 Spring state indicator 19 21 70 Standards 15 Switching times 37 T Test position 65 Threaded rod 55 Transformer operated release Y4 22 29 Y5 22 29 Y6 22 29 Travel 65 Travel distances 64 U Undervoltage release Y7 22 30 52 V Vacuu...

Page 79: ...hell above and below optional 49 Holder 51 1 1st shunt release Y1 51 2 2nd release 51 3 3rd release 52 Closing solenoid Y9 53 Motor M1 54 1 Position switch S12 54 2 Position switch S21 54 3 Position switch S3 54 4 Position switch S4 54 5 Position switch S5 54 6 Circuit breaker tripping signal S6 55 Closing spring 55 1 Spring state indicator 56 1 CLOSE pushbutton 56 2 OPEN pushbutton 56 3 Position ...

Page 80: ...Published by Siemens AG Smart Infrastructure Distribution Systems Schaltwerk Berlin Nonnendammallee 104 13629 Berlin Germany ...

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