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 Description

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Revision 06 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • 864-5091.9 

 

                                                                                                                                                                            

9

Circuit-breaker

9.1

Design

The vacuum circuit-breaker is an integral part of the switchgear panel and consists of the 
following components:
• Operating mechanism with stored-energy spring mechanism and control elements (3AH49)
• Operating linkage for contact operation
• 3 switchpanel poles with vacuum interrupters

Mechanical interlocking

The circuit-breaker and the three-position disconnector are mechanically interlocked against 
each other. During manual operation, the mechanical interlock prevents the circuit-breaker 
from being closed as long as the three-position disconnector is not in a defined end position 
(CLOSED/OPEN/EARTHED). Furthermore, the mechanical interlock prevents the three-position 
disconnector from being operated while the circuit-breaker is closed.

Vacuum interrupters

Fig. 5:

Sectional view of 

a vacuum interrupter

①

Moving contact

②

Metal bellows

③

Fixed contact

Summary of Contents for 8DB10

Page 1: ...0Extendable Fixed Mounted Circuit Breaker Switchgear up to 40 5 kV Double Busbar Single pole Metal Enclosed Gas Insulated Medium Voltage Switchgear INSTALLATION AND OPERATING INSTRUCTIONS Order No 864 5091 9 Revision 06 Issue 26 02 2016 ...

Page 2: ... or modify any prior or existing agreement commitment or relationship The Sales Contract contains the entire obligations of Siemens The warranty contained in the contract between the parties is the sole warranty of Siemens Any statements contained in this instruction manual do not create new warranties or modify the existing warranty To connect or install devices from other manufacturers the assoc...

Page 3: ...nstallation 50 19 Constructional stipulations 50 19 1 Switchgear room 50 19 2 Constructional data of the foundation 53 19 3 Transport units 57 20 Before installation 59 20 1 Preliminary clarifications 59 20 2 Intermediate storage 59 20 3 Tools auxiliary means 61 20 4 Installation and fixing material 62 20 5 Comments on electromagnetic compatibility 62 21 Unloading and erecting the transport units ...

Page 4: ...work 143 34 2 Test operation 143 34 3 Checking the accessories 145 34 4 Correcting circuit diagrams 145 34 5 Instructing the operating personnel 145 Operation 146 35 Control elements and indicators 146 36 Circuit breaker operation 148 36 1 Closing the circuit breaker manually 148 36 2 Opening the circuit breaker manually 148 36 3 Emergency release of the circuit breaker 149 36 4 Recommendation for...

Page 5: ...ng 201 43 1 Test voltage 201 43 2 Safety instructions 201 43 3 Function test 202 Servicing 203 44 Maintenance 203 44 1 Switchgear maintenance 203 44 2 Safety instructions 203 44 3 Maintenance recommendation 203 44 4 Procedure for bolted joints and seals 204 44 5 Maintenance of the vacuum circuit breaker operating mechanism 205 44 6 Cleaning agents and cleaning aids 206 44 7 Lubricants 207 44 8 Swi...

Page 6: ...DANGER as used in these instructions this means that personal injuries can occur if the relevant precautionary measures are not taken Observe the safety instructions ATTENTION as used in these instructions this means that damage to property or environment can occur if the relevant precautionary measures are not taken Observe the safety instructions NOTE as used in these instructions this points at...

Page 7: ...nternal arc In case of internal arc full personal protection is not guaranteed even if the personal protective equipment is worn To select the protective equipment the national standards and specifications of the corresponding authorities and professional associations must be observed and accomplished The protective equipment consists of Protective clothing Safety shoes Gloves Helmet and face prot...

Page 8: ...iled information about transport design installation and operation of 8DB10 medium voltage switchgear After successful participation the participants get a certificate signed by the trainer DANGER Risk of injury by release of charged operating springs when the front plate of the operating mechanism is removed Bruises or cuts at the hands can be the consequence To avoid impermissible switching oper...

Page 9: ... 3 Example for a certificate Certified personnel Certified personnel in the sense of these operating instructions are persons who own a valid installation certificate for medium voltage switchgear type 8DB10 Supervisor Supervisor in the sense of these operating instructions are persons who own a valid installation certificate for medium voltage switchgear type 8DB10 and who have installed medium v...

Page 10: ...assemblies comprising up to 4 panels the switchgear is delivered ex works completely with SF6 filling ready for service The SF6 filling is provided to last the total service life of the switchgear Filling quantity as per rating plate Technology Factory assembled type tested and metal enclosed switchgear for indoor installation Double busbar Single pole metal enclosure Personal safety Safe to touch...

Page 11: ...nel ME Cable connection panel CP Bus sectionalizer BS up to 2500 A Bus sectionalizer 2 panels BS BB1 Bus sectionalizer 2 panels BS BB2 Dummy panel Vacuum circuit breaker Plug in voltage transformer Three position disconnector Capacitive voltage detecting system Plug in cable not included in the scope of supply These components are optionally selectable ...

Page 12: ...Gas pressure manometer for circuit breaker housing Gas filling valve Gas pressure manometer for three position disconnector housing in system 1 Operating mechanism of three position disconnector Circuit breaker operating mechanism Capacitive voltage detecting system Busbar housing Busbars Gas pipe Switchpanel pole housing with vacuum interrupter 4MC4 current transformer Panel connection housing wi...

Page 13: ...nometer for three position disconnector housing in system 2 Gas pressure manometer for circuit breaker housing Gas filling valve Gas pressure manometer for three position disconnector housing in system 1 Operating mechanism of three position disconnector Circuit breaker operating mechanism Capacitive voltage detecting system Busbar housing Busbars Gas pipe Switchpanel pole housing Coupling housing...

Page 14: ...s pressure manometer for three position disconnector housing in system 2 Gas pressure manometer for circuit breaker housing Gas filling valve Gas pressure manometer for three position disconnector housing in system 1 Operating mechanism of three position disconnector Circuit breaker operating mechanism Capacitive voltage detecting system Busbar housing Busbars Gas pipe Bus riser housing 4MC4 curre...

Page 15: ...PROTEC bay controller option Gas pressure manometer for three position disconnector housing in system 2 Gas filling valve Gas pressure manometer for three position disconnector housing in system 1 Operating mechanism of three position disconnector Dummy cover for circuit breaker operating mechanism Busbar housing Busbars Gas pipe Housing Voltage transformer ...

Page 16: ...e manometer for switchpanel pole housing in system 2 Gas filling valve Gas pressure manometer for switchpanel pole housing in system 1 Dummy cover for circuit breaker operating mechanism Capacitive voltage detecting system Busbar housing Busbars Gas pipe Switchpanel pole housing Panel connection housing with inside cone bushings for cable plugs voltage transformers and surge arresters or for conne...

Page 17: ...864 5091 9 INSTALLATION AND OPERATING INSTRUCTIONS 8DB10 Revision 06 17 214 Description Dummy panel Low voltage compartment standard heights 850 1200 mm Busbar housing Busbars ...

Page 18: ...ler option Gas pressure manometer for switchpanel pole housing Gas filling valve Gas pressure manometer for three position disconnector housing in system 1 Cover of operating mechanism for three position disconnector Dummy cover for circuit breaker operating mechanism Capacitive voltage detecting system Busbar housing Busbars Gas pipe Bus riser housing 4MC4 current transformer Bus sectionalizer ...

Page 19: ...ve Gas pressure manometer for three position disconnector housing in system 1 Operating mechanism of three position disconnector Circuit breaker operating mechanism Capacitive voltage detecting system Busbar housing upper busbar system Busbars upper busbar system Busbar housing lower busbar system Busbars lower busbar system Gas pipe Switchpanel pole housing with vacuum interrupter 4MC4 current tr...

Page 20: ...ear height 2570 mm 8 3 Low voltage compartment For accommodation of protection control measuring and metering equipment With plug in cables of the circuit breaker and three position disconnector operating mechanisms on top hat rail for incoming and outgoing cables e g bus wires Devices can be optionally mounted in the door or on top hat rail inside the low voltage compartment Height of low voltage...

Page 21: ...ressure manometer for circuit breaker housing Gas filling valve Gas pressure manometer for three position disconnector housing in system 1 Control and indication board for three position disconnector with position indicator for circuit breaker Gas pressure manometer for three position disconnector housing in system 2 Control and indication board for vacuum circuit breaker Capacitive voltage detect...

Page 22: ...acuum interrupters Mechanical interlocking The circuit breaker and the three position disconnector are mechanically interlocked against each other During manual operation the mechanical interlock prevents the circuit breaker from being closed as long as the three position disconnector is not in a defined end position CLOSED OPEN EARTHED Furthermore the mechanical interlock prevents the three posit...

Page 23: ...charging motor with mechanical and electrical anti pumping device M1 Closing solenoid Y9 1st shunt release Y1 Low voltage plug connector with 10 pole wiring Q0 Auxiliary switch max 2NO 2NC 2 changeover freely available S1 Position switch for closing spring charged indication S41 S42 Circuit breaker tripping signal cutout switches S6 S7 Operations counter Feeder locking device Additional equipment ...

Page 24: ...ork which cannot be operated during normal operation ATTENTION The work in progress earthing contact of the disconnector in busbar system 2 is designed for maintenance work at the three position disconnector in busbar system 1 in de energized condition only Before switching to the work in progress earthing contact always contact your regional Siemens representative Fig 7 8DB three position disconn...

Page 25: ...position Three position disconnector system 2 in OPEN position Three position disconnector system 1 in CLOSED position Three position disconnector system 2 in OPEN position Three position disconnector system 1 in READY TO EARTH position Three position disconnector system 2 in OPEN position Three position disconnector system 1 in OPEN position Three position disconnector system 2 in CLOSED position...

Page 26: ...tor option The three position switch is equipped with a mechanical interlock This interlock prevents the circuit breaker from being closed while the three position switch is being operated Furthermore the mechanical interlock prevents the possibility of operating the three position switch while the circuit breaker is closed With single busbar systems the control gate can only be operated if the in...

Page 27: ...Gas pressure manometer for three position disconnector housing in system 1 Operating mechanism of three position disconnector Gas pressure manometer for three position disconnector housing in system 2 Circuit breaker operating mechanism Capacitive voltage detecting system Housing for busbar earthing switch Operating unit Busbars Busbar housing Gas pipe Switchpanel pole housing with vacuum interrup...

Page 28: ... the panel connection via flexible cable with plug size S2 at the panel connection housing and metal enclosed voltage transformer Mounting locations Type Comment Busbar 4MT3 optionally with three position disconnector 4MU4 Panel connection 4MU3 external 4MT7 directly pluggable Designation 4MT3 4MU4 4MT7 4MU3 Operating voltage kV 3 3 to 23 0 24 0 to 38 0 3 3 to 38 0 3 3 to 38 0 Rated voltage kV 24 ...

Page 29: ...mer type 4MC4_40 Feeder current transformer type 4MC4_40 Feeder current transformer type 4MC4_90 Feeder current transformer type 4MC4_10 Designation Type 4MC4 Operating voltage max 800 V Rated short duration power frequency withstand voltage winding test 3 kV Rated frequency 50 60 Hz Rated continuous thermal current max 1 2 x rated current primary Rated thermal short time current max 3 s max 40 kA...

Page 30: ...ens representative Bushings Fig 14 Gas compartment distribution in a double busbar panel 8DB10 Busbar system 1 phase L1 manometer B11 Busbar system 1 phase L2 manometer B12 Busbar system 1 phase L3 manometer B13 Busbar system 2 phase L1 manometer B21 Busbar system 2 phase L2 manometer B22 Busbar system 2 phase L3 manometer B23 Three position disconnector busbar system 1 phases L1 L2 L3 manometer B...

Page 31: ... connection S2 4 5 5 0 Circuit breaker panel 1250 A 3x panel connection S3 5 2 5 7 Circuit breaker panel 1250 A 4x panel connection S3 6 4 6 9 Circuit breaker panel 2500 A 4x panel connection S3 6 9 Bus sectionalizer 1250 A 2 panels 13 6 14 4 Bus sectionalizer 2500 A 2 panels 14 4 Bus coupler 2500 A 7 5 Values according to technical data see page 44 Insulating gas SF6 Examples for busbar shares 70...

Page 32: ...connection housing For rated normal currents up to 2500 A 14 2 Panel connection versions for cable plugs Selection table Cable plugs inside cone Examples Panel connection versions Plug size 2 3 4 Rated normal current A 800 1250 2500 Rated lightning impulse withstand voltage kV 200 200 200 Rated short duration power frequency withstand voltage kV 95 95 95 Min cross section mm2 25 50 95 Min core dia...

Page 33: ...tion Version 4 Version 5 Version 6 Version 7 S2 S3 Solid insulated busbar connection S2 S3 S4 Solid insulated busbar connection Gas insulated busbar connection 4 1 1 1 5 1 1 6 2 1 4 1 1 1 3 1 1 1 1 4 2 2 2 2 1 2 3 3 1 3 2 4 1 2 1 1 1 2 1 1 1 1 Legend Panel connection housing Subframe ...

Page 34: ... 17 Verification of safe isolation from supply LRM system Features of LRM plug in sockets Verification of safe isolation from supply phase by phase through insertion of the voltage indicator in the corresponding plug in sockets Voltage indicator suitable for continuous operation Safe to touch Routine tested Measuring system and voltage indicator can be tested Voltage indicator flashes if high volt...

Page 35: ...OIS R M1 Operating voltage present at one phase L1 L2 or L3 as a minimum M2 Operating voltage not present at L1 L2 and L3 CAPDIS S1 S2 Fig 20 Voltage indicator type CAPDIS S2 option Common features of CAPDIS S1 S2 Maintenance free Integrated display without auxiliary power Integrated repeat test of the interfaces self monitoring With integrated function test without auxiliary power by pressing the...

Page 36: ... M4 auxiliary power required M1 Voltage present at phases L1 L2 L3 M2 Voltage not present at L1 L2 and L3 active zero indication M3 Earth fault or voltage failure e g in one phase M4 External auxiliary power missing with operating voltage present or not DANGER High voltage Danger Do only modify the factory setting of the C2 module in the voltage detecting system CAPDIS S1 S2 after consultation wit...

Page 37: ... socket for phase comparison Degree of protection IP 54 temperature range 25 C to 55 C Without integrated signaling relay Without auxiliary power WEGA 2 2 Fig 23 Voltage indicator type WEGA 2 2 Features of WEGA 2 2 With indication A0 to A6 see page 179 Indications WEGA 1 2 WEGA 2 2 Maintenance free Integrated repeat test of the interface self monitoring With integrated function test without auxili...

Page 38: ... Revision 06 INSTALLATION AND OPERATING INSTRUCTIONS 8DB10 864 5091 9 16 Aseismic design option Additional components for seismic design are pre assembled at the factory Fig 24 Aseismic panel design reinforced side plate ...

Page 39: ... Operating and installation instructions Operating lever for three position disconnector DISCONNECTING function Operating lever for three position disconnector EARTHING or READY TO EARTH function Hand crank for charging the circuit breaker closing spring Double bit key with a diameter of 3 mm for door of low voltage compartment ...

Page 40: ...detecting system e g plug in voltage indicator Voltage indicators for LRM systems pluggable e g make Horstmann Adapter for emergency operation of the three position operating mechanism to be used only with motor operating mechanism Operating lever for the make proof busbar earthing switch Torx screwdriver Test units to check the capacitive interface and the voltage indicators ...

Page 41: ...ATING INSTRUCTIONS 8DB10 Revision 06 41 214 Description Phase comparison test units e g make Pfisterer type EPV Accessories box in the switchgear end wall to store the accessories Fig 25 Accessories box in the switchgear end wall open ...

Page 42: ...s touch in the first pole in the closing process and the instant when the contacts separate in all poles in the subsequent opening process Rated voltage kV 12 24 36 40 5 frequency Hz 50 60 General Rated short duration power frequency withstand voltage kV 28 50 70 85 Rated lightning impulse withstand voltage kV 75 125 170 185 Disconnector Rated short duration power frequency withstand voltage kV 32...

Page 43: ...With this design the electrical opening command is transferred magnetically and thus the circuit breaker is opened Power consumption 70 W or 50 VA Undervoltage release Undervoltage releases Y7 3AX1103 are tripped automatically through an electromagnet or deliberately The deliberate tripping of the undervoltage release generally takes place via an NC contact in the tripping circuit or via an NO con...

Page 44: ...ture of 65 C Vapor pressure over liquid SF6 In the supplied cylinders about 2 3 of the cylinder volume is liquid at 20 C the rest is saturated SF6 vapor Vapor pressure as a function of temperature Storage Store the cylinders in vertical position in a cool place Secure the cylinders against accidents Gas pressures in kPa at 20 C ATTENTION Switching overvoltages can damage electronic control devices...

Page 45: ...y deviate from the above characteristics Circuit breaker disconnector housing Rated feeder current A 1250 1600 2500 Rated voltage kV 36 40 5 36 38 40 5 Rated lightning impulse withstand voltage kV 170 185 190 200 200 200 Rated short duration power frequency withstand voltage kV 50 65 70 70 85 85 80 80 80 Rated functional level kPa 70 120 Signal critical functional level 40 90 Min functional level ...

Page 46: ... Cable compartment Tool based Designation of the internal arc classification IAC IAC class for Wall standing arrangement IAC A FL 40 kA 1 s Free standing arrangement IAC A FLR 40 kA 1 s Type of accessibility A Switchgear in closed electrical service location Access for authorized personnel only according to IEC 62 271 200 F Front L Lateral R Rear for free standing arrangement Rated short time with...

Page 47: ... the EMC guide The switchgear operator owner must keep the technical documents supplied with the switchgear throughout the entire service life and keep them up to date in case of modifications of the switchgear Dr Bernd Jäkel Ansgar Müller Medium Voltage Systems EMC Guide for Switchgear A D ATS SR PTD M SP Protection against solid foreign objects electric shock and water The fixed mounted circuit ...

Page 48: ...is specified as M2 a maximum of 30 000 mechanical operating cycles are possible with the circuit breaker The IAC classification is referred to each panel The data on the rating plate see item describes the areas classified for the corresponding panel Fig 28 Rating plate of switchgear example Switchgear type Serial number Operating mechanism number Year of manufacture Panel number Technical data In...

Page 49: ... Mounting direction of post insulator cover The post insulator cover is marked with the designation Front The marking must always point towards the front of the switchgear when the cover is mounted Observe the mounting position of the post insulator cover Fig 29 Standard cover rear view Fig 30 Desiccant cover rear view Fig 31 Post insulator cover rear view Fig 32 Post insulator cover with desiccan...

Page 50: ...ge cables Earthing system Cleanliness Switchgear room free of dirt and dust Floor openings The panels can be bolted or welded to the foundation rails Fasten each panel diagonally to the foundation rails at two points at least Use M10 fixing bolts as a minimum Tightening torque 60 Nm Dimensions of the switchgear room Fig 35 Room planning data in mm 2850 mm 3 800 mm Area for floor openings for contr...

Page 51: ... Load data and minimum distances Constant loads Vertical single load 12 kN Not constant loads Live load 9 kN m2 Minimum distances Control aisle 800 mm Minimum lateral wall distance 100 mm Lateral wall distance 500 mm Ceiling height 2900 mm Minimum door opening Height 2700 mm Width 900 1900 mm Depending on national requirements Optionally possible on the left or on the right Optionally required on ...

Page 52: ... for few and smaller floor openings Double floor Suitable if neither a cable basement nor sufficient cable ducts can be installed it consists of removable flame retardant floor plates mounted on a supporting structure The supporting floor is about 60 to 100 cm lower depending on the cable routing bending radius Earthing system Provide suitable earthing system for the substation building e g founda...

Page 53: ...et EN10021 4x40x60 mm ATTENTION The cable basement must be sufficiently large to perform all work involved and to provide a clear arrangement of the cables The height and depth of the cable basement depends on the bending radii of the cables used Fig 40 Overview of floor openings and fixing points Base frame Fixing holes 26x45 for M10 Floor opening for high voltage cables Area for floor openings f...

Page 54: ...e welded diagonally to the foundation rails at two points A floor fixing profile is not necessary The welding seams are conform to the strength of the equivalent bolted joint with M10 bolts Stipulations for the welded joint of the aseismic design The aseismic design must be welded to the foundation rails at all 4 points A floor fixing profile is not necessary The welding seams must conform to the ...

Page 55: ... Expansion dowel with hexagonal bolt and washer FAN 12 10 Floor finish Fig 47 Welded floor fixing Upper edge of finished floor Base frame of the switchgear Welding in fixing opening of base frame U profile U80 DIN 1026 Floor fixing plate holder for profiles at a distance 1200 mm see page 56 Floor fixing plate Min 55 mm Min 90 mm 80 mm Raw floor Expansion dowel with hexagonal bolt and washer FAN 12...

Page 56: ...furt Fig 49 Floor fixing plate 90 2 mm 30 1 mm 80 2 mm1 Plate 80 x 5 x 160 mm DIN 1017 EN 10025 S235 JR hot dip galvanized Plate 30 x 5 x 40 mm DIN 1017 EN 10025 S235 JR hot dip galvanized 160 2 mm 40 1 mm 30 mm 35 2 mm 13 mm 80 1 5 mm 15 mm 1 50 mm when using C profile CB 50 NOTE The welded seams are susceptible to corrosion After welding protect the welded seams professionally against corrosion ...

Page 57: ...ons at places which are not accessible to the public Enclosures of switchgear can only be removed with tools in lockable electrical service locations A lockable electrical service location is a place outdoors or indoors that is reserved exclusively for housing electrical equipment and which is kept under lock and key Access is restricted to authorized personnel and persons who have been properly i...

Page 58: ...10 864 5091 9 Center of gravity The position of the center of gravity can vary depending on the switchgear design In the following construction the center of gravity is located at the marked position Fig 51 Position of the center of gravity depending on the switchgear version ...

Page 59: ...as the floor number of the installation room Information about available lifting equipment e g mobile crane fork lift truck lifting truck hydraulic jack roller pads If no lifting equipment is available please notify this explicitly 20 2 Intermediate storage DANGER Risk of injury and damage to the stored goods if the storage surface is overloaded or the transport units are stacked Observe the load ...

Page 60: ...inst vermin e g insects mice rats Even floor to enable stable storage Floor with adequate load bearing capacity Sufficient size to enable clearly arranged storage Do not unpack small parts to avoid corrosion and loss Store transport units in such a way that they can be taken out later in the correct order for installation Provide for sufficient ventilation in heated storage rooms Check transport u...

Page 61: ...e hygrometer e g DILO type 3 037 R001 or DILO type 3 038 SF6 multimeter DN8 connection Volume percentage meter e g DILO type 3 027 R002 or DILO type 3 038 SF6 multimeter DN8 connection Gas leak detector e g DILO type 3 033 R002 SF6 gas filling device e g DILO type 3 393 R001 DN8 connection Vacuum cleaner with flexible and thin tube 1 set roller pads Round steel bars diameter 30 mm length 1600 mm f...

Page 62: ... whether additional measures are required depending on the electromagnetic environment where the switchgear is installed Such measures must be implemented by the installation company in charge In an environment with heavy electromagnetic interference it may be necessary to use shielded cables and wires for the external connections in order to avoid interferences in the low voltage compartment and ...

Page 63: ...e panels Check whether the accessories are complete Checking for transport damage Unpack the transport units Do not unpack parts supplied with the switchgear in order to avoid loss and damage Inform the forwarding agent immediately about any defects or transport damages if required refuse to accept the delivery As far as possible document larger defects and transport damages photographically prepa...

Page 64: ...e Fig 52 Gas pressure manometers at the panel Gas pressure manometers for the busbar compartments in system 1 Gas pressure manometers for the busbar compartments in system 2 Gas pressure manometer for three position disconnector housing in system 2 Gas pressure manometer for circuit breaker housing Gas pressure manometer for three position disconnector housing in system 1 Critical gas pressure sig...

Page 65: ...on ways left inside the switchgear building or the transport units can be set down with the crane directly at the switchgear building The transport unit is screwed on the pallet The fixing points for transport are located behind the front metal cover in the frame and at the rear cross member Remove the metal covers from the subframes of the panels Remove all fixing bolts that connect the transport...

Page 66: ...ace of installation switchgear room by means of lifting trucks or fork lift trucks Lifting the transport unit with hydraulic or lifting jacks Two round steel bars with a diameter of 30 mm are required which are pushed into the transport holes at the transport unit same as described for lifting with the crane see page 65 Unloading transport units Push the round steel bars into the transport holes a...

Page 67: ...it with a fork lift truck knock the boards marked at the front out of the wooden pallet Lift the transport unit with a crane hydraulic jacks or a fork lift truck Fig 56 Lifting the transport unit with the fork lift truck Boards marked at the front Fig 57 Example for craning the transport unit 1037 mm height of switchgear dependent on built on components 622 mm ...

Page 68: ...transport unit slowly and evenly onto the roller pads bars 21 6 Setting down the transport units at the place of installation Depending on the constructional facts in the switchgear room there are two basic possibilities for setting down the transport units at the place of installation NOTE A transport unit standing on roller pads can only be moved straight ahead To change the direction the positi...

Page 69: ...n parallel to the floor opening Lift the transport unit Remove the roller pads bars from underneath the transport unit To shift the transport unit easily and to protect the floor shims can be laid under as a sliding aid Set down the transport unit carefully DANGER The transport units can fall down when they are moved over the floor opening When moving the transport unit on the floor opening take c...

Page 70: ...ort unit roughly observing a side distance of at least 500 mm Remove the shims from underneath the transport unit as described above Proceed in the same way with all other transport units 21 7 Aligning the switchgear To align the switchgear please follow the illustration below Align the first transport unit end panel completely and bolt it to the foundation see page 53 Constructional data of the f...

Page 71: ...ee position disconnectors of the transport units located on the right and on the left of the panel joint to READY TO EARTH position If there are any make proof busbar earthing switches Switch the make proof busbar earthing switches to OPEN position Remove the fixing brackets from all flanges at the panel joint NOTE The activities described hereafter must be carried out by certified personnel who i...

Page 72: ...on is only performed if one of the following devices is mounted on the busbar housings of the panel located on the right of the panel joint Disconnectable busbar connection Disconnectable busbar voltage transformer Make proof busbar earthing switch Top mounted busbar sectionalizer Fig 62 Preparing busbar assembly on the panel located on the right of the panel joint example with elbow coupling Fig ...

Page 73: ...ngs together with the associated busbar supports through the vertical flange Mount the busbar sections at the joints in the busbar housings of the panel located on the right of the panel joint Assembly takes place through the vertical flanges Check alignment and parallel position of the assembled busbar sections and correct if required Fig 64 Re assembling the busbars example with elbow coupling F...

Page 74: ...ansport unit to be attached is moved evenly by two people if possible using hydraulic hoisting cylinders hydraulic jacks or lifting jacks A third person acts as an observer and corrects the joining of the busbar sections and the flanges during the process Fig 66 Flange on the busbar housing External contact surface of the flange Groove for toroidal sealing ring ATTENTION When joining the transport...

Page 75: ...ue approaching the transport units until the flanges touch evenly In case of deviations correct the position of the transport unit compensating any floor unevenness with shims under the corners same points as for roller pads bars Bolting the flanges of the busbar housings together Flange to flange connections Tighten M8x40 bolts crosswise Tightening torque 20 Nm Flange connections with compensator...

Page 76: ...re e g busbar current transformers or expansion joints available the flange connections must be equipped with insulating sleeves Fig 69 Flange connection with compensator and insulating sleeve Insulating sleeve Busbar housing Insulating ring thickness 18 mm Toroidal sealing rings Compensator Fig 70 Long busbar housing with insulating joint Busbar housing Toroidal sealing ring Insulating ring thick...

Page 77: ...il all transport units are installed 22 4 Completing switchgear installation As a precondition for this work the switchgear must have been completely assembled as described above see page 77 Installing further transport units Tightening the busbar fixing bolts Tighten the fixing bolts of all busbars and fixed contacts at all panel joints of the switchgear Tightening torque 40 Nm Finally fit the pr...

Page 78: ...nal sleeve so that the contact fingers are resting exactly on the fixed contact of the disconnector in CLOSED position Fig 74 Example for correct and incorrect position of the contact fingers on the fixed contact Verify proper contact overlapping after several switching operations with the operating mechanism of the three position disconnector Tighten the locknuts again with a tightening torque of...

Page 79: ...ransport units are bolted together at the panel joints using connecting links at the front and a connecting plate at the rear Align adjacent connecting links at the subframes The holes must be in line Bolt the transport units together at the front connecting links using four bolts M10 x 20 tightening torque 40 Nm and at the rear connecting plate using two coach bolts M10 x 20 tightening torque 40 ...

Page 80: ...ard version for square panel connection housing Mount the cable bracket at the cross members down at the subframe Fig 76 Round panel connection housing Mounting the cable bracket representation with 4MC4 current transformer Hexagon socket head bolt M10 x 20 with nut Subframe Bracket at the cable bracket Hexagonal bolt M10 x 20 with nut Fig 77 Square panel connection housing Mounting the cable brac...

Page 81: ...kets representation without 4MC4 current transformer C rail at the rear C rail at the front Fig 79 Mounting the C rails at the cable brackets representation without 4MC4 current transformer Lock washer M8 Hexagonal bolt M8 x 50 Bracket Hexagonal nut M8 Fig 80 Square panel connection housing Mounting the extended cable bracket representation without 4MC4 current transformer Hexagon socket head bolt...

Page 82: ... brackets Fig 81 Mounting the C rails at the cable brackets representation without 4MC4 current transformer C rail at the front C rail at the rear Fig 82 Fixing points of the C rails at the cable brackets representation without 4MC4 current transformer Lock washer M8 Hexagonal bolt M8 x 50 Bracket Hexagonal nut M8 ...

Page 83: ...at the joint Tightening torque 70 Nm Proceed in the same way with all other transport units until all earthing busbar ends of the switchgear are interconnected Earthing the panels The cross sections and materials of the earthing conductors are specified in the DIN VDE 0101 standard or in the IEC 61936 1 and in the relevant country specific standards Connect the earthing busbar to the substation ea...

Page 84: ... are not refilled with SF6 gas on site All parts of the switchgear that have to be filled with gas are equipped with desiccant bags in order to eliminate residual humidity in the gas filling In ambient air the desiccant agent loses its effectiveness rapidly To expose the desiccant bags as briefly as possible to the ambient air the following installation and gas work is performed completely on one ...

Page 85: ...sbar housing general type with Filter inscription on the cover 2 x 250 g Top mounted bus sectionalizer 2 x 250 g Bus coupler 1 x 250 g Interconnection housing of bus sectionalizer 4 x 250 g Circuit breaker housing right hand panel of bus sectionalizer Bus riser housing Circuit breaker housing general type 2 x 250 g Three position disconnector housing general 2 x 250 g NOTE Observe the mounting loc...

Page 86: ...n 2 kPa Manometer indication 100 kPa Measure the pressure with the vacuum pump locked Depending on the inside diameter and length of the vacuum pump tube let the pump operate for another 5 to 15 minutes Remove the pump tube The valve in the gas filling valve closes automatically Filling the busbar run with an SF6 gas cyclinder Determine the filling pressure required according to the rating plate s...

Page 87: ...t bags as briefly as possible to the ambient air the installation work described hereafter is performed completely on one circuit breaker housing in one panel Assembling panel connections supplied separately Remove 8 pan head bolts and 8 strain washers from the cover of the transformer housing Remove the cover of the transformer housing and the toroidal sealing ring ATTENTION Desiccant bags that h...

Page 88: ...e 4 pan head bolts 4 nuts and 4 strain washers from the cover of the panel connection housing Remove the cover of the panel connection housing Fig 91 Removing the cover of the panel connection housing Fig 89 Removing the cover with the plug sockets Cover of panel connection housing Fig 90 Removing the panel connection housing Cover of panel connection housing Panel connection housing Sealing ring ...

Page 89: ... the transformer housing using 8 pan head bolts M6x20 with Polylok coating from the accessories tightening torque 10 Nm NOTE Depending on the panel connection version the feeder current and whether there are voltage transformers available the panel connection stud is delivered in different lengths Before assembling the panel connection stud verify the correct length according to the supplied overv...

Page 90: ...ion housing Fig 95 Inserting the sealing ring Grease the contact laminations with mounting paste Vaseline 8422 DAB 8 order number 8BX2091 Fig 96 Greasing the socket Push the cover of panel connection housing into the panel connection housing Fig 97 Inserting the cover of the panel connection housing NOTE In other panel connection versions the plug sockets may be arranged asymmetrically If the plug...

Page 91: ...he above work operations for all other panel connections in the same panel The panel connections are assembled Replacing desiccant bags in the circuit breaker housings The desiccant bags are located behind the cover of the bursting disc at the side of the circuit breaker housing The cover has the inscription Filter Fig 99 Cover of bursting disc on circuit breaker housing Cover of bursting disc ATT...

Page 92: ...s down to a pressure of less than 2 kPa Manometer indication 100 kPa Measure the pressure with the vacuum pump locked Depending on the inside diameter and length of the vacuum pump tube let the pump operate for another 5 to 15 minutes Remove the pump tube The gas filling valve closes automatically Filling the circuit breaker housings with SF6 gas Determine the filling pressure required according t...

Page 93: ...ummy plugs on all sockets of the panel to be tested Earth and short circuit all test sockets of the voltage detecting system Switch all other three position disconnectors to READY TO EARTH position Apply the power frequency test voltage in a surge proof way at the cable connection bushing via test adapters The rated short duration power frequency withstand voltage test can now be performed DANGER ...

Page 94: ...l test sockets of the voltage detecting system Switch all other three position disconnectors to READY TO EARTH position Apply the power frequency test voltage in a surge proof way at the cable connection bushing via test adapters The rated short duration power frequency withstand voltage test can now be performed Performing the power frequency voltage test Apply 80 of the rated short duration powe...

Page 95: ...repare the flange of the solid insulated bar and the connection flange of the circuit breaker housing for assembly Mount solid insulated bar Tightening torque at the flange 20 Nm If the circuit breaker housing was ventilated for more than half an hour replace the desiccant bags see page 87 Installing the panel connections supplied in the accessories and filling the circuit breaker housing with SF6...

Page 96: ... damaged during installation work at the busbar and the busbar housings While working at the busbars or the busbar housings prop up only on the aluminum housings and the frame Do not prop up on sensitive parts of the switchgear like gas pipes bursting discs shafts etc ATTENTION While working on metal coated voltage transformers the coating may be scratched or damaged Then the voltage transformers ...

Page 97: ...adapter of the voltage transformer and the outside cone bushing carefully Use a cleaning agent without solvents and a lint free cloth Grease the silicone adapter of the voltage transformer and the outside cone bushing of the voltage transformer mounting plate uniformly with mounting paste for cable sets Fig 100 4MT3 busbar voltage transformer shown without cover 4MT3 voltage transformer Low voltag...

Page 98: ...transport To position the adapter plate correctly Loosen the M8 bolts of the adapter plate a little bit Bolt the adapter plate uniformly together with the voltage transformer mounting plate Tightening torque 30 Nm M8 bolts for fixing the adapter plate on the voltage transformer mounting plate Bushing for low voltage plug connector ATTENTION Risk of partial discharges at the outside cone bushing Ma...

Page 99: ...ne of the voltage transformer at the same time Connect the low voltage plug connector to the voltage transformer Fasten the voltage transformer at the panel To do this bolt the voltage transformer uniformly together with the voltage transformer mounting plate using four M8 bolts Tightening torque 30 Nm Silicone adapter Cable strap Outside cone bushing DANGER Risk of injury The voltage transformer ...

Page 100: ...former using four bolts M6 x 12 and contact washers Tightening torque 8 Nm NOTE To have the voltage transformer correctly seated on the voltage transformer mounting plate Prevent the voltage transformer from canting during installation Fixing bolts to connect the voltage transformer with the voltage transformer mounting plate ...

Page 101: ...ve protective cap Remove the surge proof dummy plug from the inside cone bushing To do this undo the three M8 hexagon socket head bolts and remove the dummy plug Fig 101 4MU4 busbar voltage transformer Low voltage plug connector 4MU4 voltage transformer Inside cone bushing Voltage transformer mounting plate Intermediate ring Busbar housing Primary terminal at the voltage transformer Silicone adapt...

Page 102: ...ing hexagon socket head bolts Clean the silicone adapter and the inside cone cast resin socket carefully Use a cleaning agent without solvents and a lint free cloth Grease the silicone adapter and the inside cone cast resin socket uniformly with mounting paste for cables sets Fig 104 Cleaning and greasing the silicone adapter Fig 105 Greasing and cleaning the inside cone cast resin socket ...

Page 103: ...lling the cable strap out at the same time Connect the low voltage plug connector to the voltage transformer Fasten the voltage transformer at the panel To do this bolt the voltage transformer uniformly together with the voltage transformer mounting plate using four M8 bolts Tightening torque 30 Nm Fig 107 Fixing the voltage transformer ATTENTION Risk of injury The voltage transformer type 4MU4 ha...

Page 104: ...llation instruction enclosed with the supplementary equipment Fig 108 4MT7 voltage transformer Panel connection housing Inside cone bushing for primary terminal of transformer Primary terminal at the voltage transformer Silicone adapter Fixing bracket fastened to the voltage transformer housing 4MT7 voltage transformer Low voltage plug connector Inside cone bushing for cable Panel connection cover...

Page 105: ... free cloth Grease the silicone adapter and the inside cone cast resin socket uniformly with mounting paste for cables sets Fig 111 Greasing the silicone adapter Fig 112 Greasing the inside cone cast resin socket Inside cone bushing for plug in cable connection Inside cone bushing for primary terminal of transformer DANGER Risk of injury The voltage transformer type 4MT7 has a weight of approx 35 ...

Page 106: ...el connection cover Insert the primary terminal of the voltage transformer slowly into the inside cone of the panel connection cover pulling the cable strap out at the same time Fit plain washers on the threaded rods of the fixing bracket stecken Bolt the voltage transformer uniformly together with the panel connection cover using the M10 nuts Tightening torque 30 Nm Fig 114 Bolting the voltage tr...

Page 107: ...ON Sensitive parts of the switchgear may be damaged during installation work at the busbar and the busbar housings While working at the busbars or the busbar housings prop up only on the aluminum housings and the frame Do not prop up on sensitive parts of the switchgear like gas pipes bursting discs shafts etc ATTENTION While working on metal coated voltage transformers the coating may be scratche...

Page 108: ...er with the adapter plate with the help of the press out bolts While doing so screw the press out bolts in uniformly so that the transformer is not canted Fixing bolts at the adapter plate Holes with setnut for press out bolts ATTENTION Risk of injury While being removed from the bushing the voltage transformer can detach suddenly Remove the voltage transformer upwards as uniformly as possible Do ...

Page 109: ...and protect it against damages and pollution 27 2 Removal of voltage transformers type 4MU4 from the busbar Isolate and earth the busbar Verify safe isolation from supply Remove the low voltage plug connection Remove the 4 fixing bolts M8x35 of the fixing brackets at the voltage transformer mounting plate Fig 116 Removing the fixing bolts at the voltage transformer mounting plate Lift the voltage ...

Page 110: ... the 3 bolts M8x25 Store these bolts carefully Fit the dummy plug and bolt together with 3 bolts M8 Fig 117 Removing bolts M8x25 ATTENTION Risk of injury While being removed from the bushing the voltage transformer can detach suddenly Remove the voltage transformer upwards as uniformly as possible Do not use excessive force ATTENTION Risk of injury The voltage transformer type 4MU4 has a weight of...

Page 111: ...g 120 Removing the voltage transformer Fig 119 4MT7 voltage transformer Panel connection housing Inside cone bushing for primary terminal of transformer Primary terminal at the voltage transformer Silicone adapter Fixing bracket fixed at the voltage transformer housing 4MT7 voltage transformer Low voltage plug connection Inside cone bushing for cable Panel connection cover ATTENTION Risk of injury...

Page 112: ...or voltage tests Close the inside cone bushings at the switchpanel pole with surge proof dummy plugs size 2 3 and bolt tight using 3 bolts M8 each Fig 121 Mounting surge proof dummy plugs ATTENTION Risk of injury The voltage transformer type 4MT7 has a weight of approx 35 kg Secure the voltage transformer against falling down If necessary transport the voltage transformer with several persons or w...

Page 113: ...28 Busbar components 28 1 Voltage transformer damping resistor The damping resistor of the voltage transformer is pre assembled at the factory Do not damage the damping resistor while working at the busbar Fixing bracket of damping resistor Damping resistor Voltage transformer mounting plate ...

Page 114: ... for example 4MU4 voltage transformer For assembly operations for 4MU4 voltage transformer see page 101 Installation of voltage transformers type 4MU4 on the busbar Fig 122 Overview of busbar component 4MU4 voltage transformer with three position disconnector Low voltage plug connector 4MU4 voltage transformer Crane eyes Voltage transformer mounting plate Intermediate ring Operating unit Busbars B...

Page 115: ...ransformer For assembly operations for 4MU4 voltage transformer see page 101 Installation of voltage transformers type 4MU4 on the busbar Fig 123 Overview of busbar component 4MU4 voltage transformer without three position disconnector Low voltage plug connector 4MU4 voltage transformer Crane eyes Voltage transformer mounting plate Intermediate ring Busbars Busbar housing ...

Page 116: ...r Remove the covers and sealing rings To do this remove the 6 bolts M8 x 45 including washer and spring washer and the M10 nuts Fig 125 Removing the covers and sealing rings Fig 124 Overview of busbar component Solid insulated bar with three position disconnector Solid insulated bar with integrated pressure ring Connection housing for solid insulated bar Busbar housing Busbars ...

Page 117: ... bar is disassembled in reverse order Remove the bolts at the pressure ring of the solid insulated bar Remove the solid insulated bar and bolt the cover onto the connection housing Fig 126 Solid insulated bar Solid insulated bar with integrated pressure ring Pressure ring Contact bolt Sealing ring Connection cover for solid insulated bar Fig 127 Fixing points for the pressure ring of the solid ins...

Page 118: ...tion disconnector Remove the covers To do this remove the 6 bolts M8 x 45 including washer and spring washer and nuts M10 Fig 129 Removing the covers Fig 128 Overview of busbar component Solid insulated bar without three position disconnector Solid insulated bar with integrated pressure ring Pressure ring Busbars Busbar housing ...

Page 119: ...ted bar is disassembled in reverse order Remove the bolts at the pressure ring of the solid insulated bar Remove the solid insulated bar and bolt the cover onto the connection cover Fig 130 Mounting solid insulated bars Solid insulated bar with integrated pressure ring Pressure ring Contact bolt Connection cover for solid insulated bar Fig 131 Fixing points for the pressure ring of the solid insul...

Page 120: ...connector Remove the covers To do this remove the 8 bolts M8 x 20 and the nuts Reuse the bolts for fixing the gas insulated bar Fig 133 Removing the covers Fig 132 Overview of busbar component Gas insulated bar with three position disconnector Gas insulated bar with integrated pressure ring Connection housing for gas insulated bar Busbars Busbar housing ...

Page 121: ...orque 20 Nm The gas insulated bar is disassembled in reverse order Remove the bolts at the pressure ring of the gas insulated bar Remove the gas insulated bar and bolt the cover onto the connection housing Gas insulated bar with integrated pressure ring Pressure ring Sealing ring Connection housing Fig 134 Fixing points for the pressure ring of the gas insulated bar Gas insulated bar Pressure ring...

Page 122: ... covers To do this remove the 8 bolts M8 x 20 and the nuts Reuse the bolts for fixing the gas insulated bar Fig 136 Removing the covers Fig 135 Overview of busbar component Gas insulated bar without three position disconnector Gas insulated bar with integrated pressure ring Connection housing for gas insulated bar Intermediate ring Busbars Busbar housing ...

Page 123: ...orque 20 Nm The gas insulated bar is disassembled in reverse order Remove the bolts at the pressure ring of the gas insulated bar Remove the gas insulated bar and bolt the cover onto the connection housing Gas insulated bar with integrated pressure ring Pressure ring Sealing ring Connection housing Fig 137 Fixing points for the pressure ring of the gas insulated bar Gas insulated bar Pressure ring...

Page 124: ...d with three position disconnector The busbar connection S2 or S3 with three position disconnector is pre assembled at the factory Fig 138 Overview of busbar component Busbar connection with plug size S2 or S3 and with three position disconnector Busbar connection with plug size 2 or 3 Intermediate ring Operating unit for busbar systems 1 and 2 Busbars Busbar housing ...

Page 125: ...ion with plug size S2 or S3 without three position disconnector The busbar connection S2 or S3 is pre assembled at the factory Fig 139 Overview of busbar component Busbar connection with plug size S2 or S3 without three position disconnector Busbar connection with plug size S2 or S3 Busbar housing Busbars ...

Page 126: ... Busbar earthing switch Busbar earthing switch The busbar earthing switch is pre assembled at the factory Fig 140 Overview of busbar component Busbar earthing switch Housing for busbar earthing switch Additional compartment for operating mechanism of busbar earthing switch Busbars Busbar housing ...

Page 127: ...ive voltage tap at the panel connection housing is pre assembled at the factory Fig 141 Overview of busbar component Capacitive voltage tap Dummy plug Capacitive voltage tap Panel connection housing Busbars Busbar housing NOTE Visual inspection of the dummy plugs Verify that all dummy plugs are properly inserted in the capacitive voltage taps ...

Page 128: ... all SF6 pipes for leaks For leak detection use an SF6 leak detector In case of gas leaks these points must be disassembled and sealed again Checking the gas quality Check the gas quality 24 hours after filling the gas compartments Determine the maximum dew point with a gas hygrometer Dew point temperature 15o C Check the air content in the SF6 gas with a gas percentage meter Maximum air content 5...

Page 129: ... compartments for busbars L1 L2 L3 of busbar system 2 Manometer for three position disconnector housing in busbar system 2 Manometer for circuit breaker housing Manometer for three position disconnector housing in busbar system 1 Fig 143 Gas pressure manometer for the circuit breaker housing at the panel Minimum permissible functional level signaling contact Critical gas pressure signaling contact...

Page 130: ...e compartment at random with the torque wrench Check the plug in connections of the devices in the low voltage compartment at random Checking auxiliary cable connections Check auxiliary cable connections on devices and terminal blocks at random Check all auxiliary cable connections on current transformer terminals including slides and jumpers in the low voltage compartment Check the designation la...

Page 131: ...les at the holders provided for this purpose Connect the ends of the cables to the terminals in the low voltage compartment according to the circuit diagram Close the doors of the low voltage compartments ATTENTION The dust proof caps supplied on the sockets of the multiple panel connections do not provide sufficient shock protection Close unused sockets of multiple panel connections with dummy pl...

Page 132: ...lug is latched into the modular terminal and mounted Removing the STG plug Push the STG plug slightly to the screwing side until the latching noses come out of the latching slots of the modular terminal Pull the STG plug horizontally out of the VBSTB4 modular terminal The STG plug is removed 30 3 Mounting the metal covers Screw all metal covers to the frames again NOTE The information stated herei...

Page 133: ...lates for intermediate and end panels To do this use bolts M6 x 25 Fig 145 Overview Degree of protection version IP31 for panels Protection plate for left end panel Sealing strip for intermediate panels Protection plate for intermediate panels Protection plate for right end panel Sealing tape between the individual panels and between roof plate and protection plate Fig 146 Example Fastening protec...

Page 134: ...RUCTIONS 8DB10 864 5091 9 Protect the junction edges of panels with additional sealing strips Attach a sealing tape under the sealing strip Fig 147 Example Fastening the sealing strip on the junction edge between two panels Sealing strip 4 bolts M6 x 25 Sealing tape ...

Page 135: ... housings with disconnectable feeders to the top are mounted on intermediate and end panels Turn the fixing cross member for installation by 180 Fig 148 Mounting fixing cross members on busbar housings Fixing cross members for right and left end panels The fixing cross member for intermediate panels is identical with the fixing cross member for end panels However the fixing cross member is turned ...

Page 136: ...retainers for the rear walls To do this use 24 bolts M6 x 12 Tightening torque 12 Nm Fig 149 Bolting points for the retainers Fixing cross members Subframe Fig 150 Retainers for the rear walls Retainer for intermediate panels Retainer for left end panels retainer for right end panels is not shown here ...

Page 137: ...the lower rear walls together with the retainers Use 8 bolts M6 x 12 for each rear wall Tightening torque 12 Nm Fig 151 Mounting lower rear walls Bolt the upper rear walls together with the retainers Use 10 bolts M6 x 12 for each rear wall Tightening torque 12 Nm Fig 152 Mounting upper rear walls ...

Page 138: ...Revision 06 INSTALLATION AND OPERATING INSTRUCTIONS 8DB10 864 5091 9 33 Installation of end walls As delivered condition of panel Fig 153 As delivered condition Tighten rear end cover Fig 154 Fixing points of rear end cover ...

Page 139: ...n the lower arc resistant protection walls and fix loosely using bolts Fig 155 Fixing points for lower arc resistant protection walls at the frame connection Hang in the upper arc resistant protection walls and fix loosely using bolts Fig 156 Fixing points for upper arc resistant protection walls ...

Page 140: ...he arc resistant protection walls and tighten it Fig 157 Fixing points for cross bracing Tighten the bolted joints of the upper and lower arc resistant protection walls Fasten short air guide from inside and long air guide from outside Fig 158 Mounting direction for short air guide and long air guide Fig 159 Fixing points for short air guide ...

Page 141: ...864 5091 9 INSTALLATION AND OPERATING INSTRUCTIONS 8DB10 Revision 06 141 214 Installation Fig 160 Fixing points for long air guide Mount central support Fig 161 Fixing points of central support ...

Page 142: ... INSTALLATION AND OPERATING INSTRUCTIONS 8DB10 864 5091 9 Mount lower end wall Fig 162 Fixing points of lower end wall close the drill holes identified with using stoppers Mount upper end wall Fig 163 Fixing points for upper end wall ...

Page 143: ...perating mechanism by hand Close and open the circuit breaker Close and open the busbar earthing switch several times DANGER Operating the switchgear under high voltage for test can destroy the switchgear and cause personal injuries Switch off high voltage before test operation ATTENTION If defective or incorrectly assembled switchgear is put into operation this can damage or destroy parts of the ...

Page 144: ...n position indicators at the front of the panels and in the control room Completing test operation Switch the circuit breakers disconnectors and earthing switches to OPEN position Activating undervoltage release The undervoltage releases mounted in the circuit breaker must be activated The circuit breaker operating mechanism is located in the central part of the panel behind the ON OFF pushbuttons...

Page 145: ...ustomer specific consignments Make the switchgear accessories available in the switchgear room or in a neighboring room clearly and ready to hand Check the accessories in the service flap option 34 4 Correcting circuit diagrams Note any modifications which may have been made during installation or commissioning in the supplied circuit diagrams After completion of the installation work ask the regi...

Page 146: ...ters of the SF6 gas compartments for busbars L1 L2 L3 of busbar system 1 Manometers of the SF6 gas compartments for busbars L1 L2 L3 of busbar system 2 Gas filling valve ON pushbutton mechanical sealable and lockable by the customer OFF pushbutton mechanical sealable and lockable by the customer Locking device Sockets for voltage detecting system Counter for operating cycles Position indicator for...

Page 147: ...eir respective function The emergency operating lever only has a slot and may exclusively be used as described see page 159 Emergency operation of the three position disconnector Fig 165 Operating lever for DISCONNECTING function Fig 166 Operating lever for READY TO EARTH function cross bar marked red Fig 167 Adapter for emergency operation to be used only with motor operating mechanism Fig 168 Ha...

Page 148: ...eaker control board The circuit breaker is open ATTENTION Operating the circuit breaker locking device in the OPEN or CLOSED positions can damage the switchgear Operate the circuit breaker locking device only in the EARTHED position and padlock it Fig 170 Circuit breaker control board ON pushbutton OFF pushbutton Feeder earthed locking device Operations counter Position indicator for circuit break...

Page 149: ...tion disconnector OPEN position Insert a suitable auxiliary means e g a very small screwdriver in the release opening as far as it will go and push softly to the left Push the lever of the locking device upwards and remove the auxiliary means ATTENTION If the auxiliary voltage fails the feeder earthed locking device is blocked Operate emergency release Fig 171 Position of opening for emergency rel...

Page 150: ... breaker control board The circuit breaker is open Shift the retaining screw of the striker from position A to B to activate the undervoltage release ATTENTION If you close manually all electrical and mechanical interlocks are ineffective To guarantee safe operation of the interlocks Seal lock the pushbuttons see table below Panel types Sealing Incoming or outgoing feeder panels ON pushbutton Bus ...

Page 151: ... spring is charged by the motor after applying control voltage The energy required for the operating sequence OPEN CLOSED OPEN auto reclosing is stored in the closing spring about 15 seconds after closing the circuit breaker The hand crank is required to charge the closing spring manually if the control voltage fails Remove cover from cutout Insert hand crank Turn hand crank clockwise approx 30 tu...

Page 152: ... be operated if the associated switching operation is permissible Fig 175 Control board on the switchgear front Busbar system 1 Busbar system 2 Control gate three position disconnector in busbar system 1 Control gate disconnector in busbar system 2 Position indicator for disconnector in busbar system 2 DISCONNECTING function Actuating opening for disconnector in busbar system 2 DISCONNECTING funct...

Page 153: ...ition disconnector is indicated both at the front and at the rear of the switchgear The rear position indicator for busbar systems 1 and 2 is located at the side of the disconnector housing Fig 176 Rear position indicator at the disconnector housing for busbar system 1 Fig 177 Rear position indicator at the disconnector housing for busbar system 2 ...

Page 154: ...OSED position Remove the operating lever for the DISCONNECTING function The left hand control gate returns to its initial position The opening for the DISCONNECTING function is closed ATTENTION In circuit breaker panels a mechanical interlock prevents the three position disconnector from being operated when the circuit breaker is closed Open the circuit breaker see page 148 Opening the circuit bre...

Page 155: ...perating lever for the DISCONNECTING function The left hand control gate returns to its initial position The opening for the DISCONNECTING function is closed 37 4 Activating the ready to earth function manually Fig 179 Opening the three position disconnector ATTENTION In circuit breaker panels a mechanical interlock prevents the three position disconnector from being operated when the circuit brea...

Page 156: ...ion and turn 180 clockwise The earthing switch is closed The position indicator changes to READY TO EARTH position Remove the operating lever for the READY TO EARTH function The left hand control gate returns to its initial position The opening for the READY TO EARTH function is closed Close the circuit breaker see page 148 Circuit breaker operation Fig 180 Operating the three position disconnecto...

Page 157: ... position disconnector to OPEN position insert the operating lever for the READY TO EARTH function and turn 180 counter clockwise The earthing switch is open The position indicator changes to OPEN position Remove the operating lever for the READY TO EARTH function The left hand control gate returns to its initial position The opening for the READY TO EARTH function is closed 37 6 Three position di...

Page 158: ...locking further movements Fig 182 Pushing the control gate to the right position To push the control gate from center position to left position Remove the right hand dummy plug Insert the screwdriver through the right hand opening and push the solenoid back Push the control gate to the left The right hand solenoid is released again blocking further movements Fig 183 Pushing the control gate to the...

Page 159: ...ree position disconnector If the motor voltage of the three position disconnector with motor operating mechanism fails and the three position disconnector is in no defined end position the three position disconnector must be operated manually Adapter for emergency operation Push emergency operation adapter on operating lever for three position disconnector Fig 185 Marking long slot on operating le...

Page 160: ...hing with the operating lever with pushed on adapter Insert the operating lever with pushed on adapter in such a way that the inner slot of the adapter fits on the pin of the operating shaft Fig 187 Inserting the operating lever with pushed on adapter ATTENTION The operating lever does not have a stop Switching beyond the end position of the three position switch with the operating lever with push...

Page 161: ...ion of short slot right Adapter position Position of long slot right Position of short slot left The disconnector is in CLOSED position The disconnector is in OPEN position Adapter position Position of long slot bottom Position of short slot top Adapter position Position of long slot top Position of short slot bottom The earthing switch is in CLOSED position The earthing switch is in OPEN position...

Page 162: ...ction DANGER Danger of personal damage due to short circuit When switching with the emergency operating lever with adapter there is a risk of switching a live busbar system straight to EARTHED position Turn the emergency operating lever with adapter carefully into the required end position When switching with the emergency operating lever with adapter check the current switch position continuously...

Page 163: ...OPEN perform the following actions Turn the emergency operating lever until the position indicator changes to CLOSED or OPEN position Remove the emergency operating lever again The control gate returns to its initial position The opening for the DISCONNECTING function is closed Fig 189 Emergency operation of the DISCONNECTING function of the three position disconnector Position of emergency operat...

Page 164: ...rating adapter Fig 190 Inserting the operating lever with pushed on adapter READY TO EARTH function Push the control gate to the left Push the control gate to the right The opening for the READY TO EARTH function is free ATTENTION The emergency operating lever with adapter does not have a stop Switching with the emergency operating lever beyond the end position of the DISCONNECTING function of the...

Page 165: ...erform the following actions Turn the emergency operating lever until the position indicator changes to READY TO EARTH or OPEN position Remove the emergency operating lever again The control gate returns to its initial position The opening for the READY TO EARTH function is closed Switching operations after emergency operation Perform further manual switching operations only with the associated op...

Page 166: ...ANGER Danger High voltage The earthing process is not completed until the circuit breaker is closed Close the circuit breaker after having switched the three position disconnector to READY TO EARTH position ATTENTION Earthing under load will destroy the three position disconnector For circuit breaker panels Circuit breaker panels cannot be operated when the disconnecting function is mechanically i...

Page 167: ...ircuit breaker see page 148 Opening the circuit breaker manually Switch the three position disconnector to OPEN position see page 157 Deactivating the ready to earth function manually ATTENTION If the feeder earthed locking device is activated and padlocked the circuit breaker cannot be opened neither electrically nor mechanically Operating the circuit breaker locking device with the disconnector ...

Page 168: ... mechanism of busbar earthing switch Position indicator Actuating opening Operating spindle at the operating lever Fig 193 Operating lever for busbar earthing switch basic scheme DANGER High voltage Danger By no means may the busbar make proof earthing switch be operated under load as it will be destroyed in case of repetition Observe the Five Safety Rules Disconnect the incoming and outgoing feed...

Page 169: ...rating lever The control gate is in its initial position again The position indicator changes from faulty position to CLOSED position Optionally Padlock the control gate The busbar earthing switch is closed ATTENTION The control gate can only be moved to a position that is permissible at this moment Observe the position indicator at the busbar earthing switch ATTENTION Once you have started a swit...

Page 170: ...he operating lever The control gate is in its initial position again The position indicator changes from faulty position to OPEN position Optionally Padlock the control gate The busbar earthing switch is open Fig 197 Position indicator at the busbar earthing switch basic scheme ATTENTION The control gate can only be moved to a position that is permissible at this moment Observe the position indica...

Page 171: ...sition basic scheme To push the control gate from center position to left position Remove the right hand dummy plug Insert the screwdriver through the right hand opening and push the solenoid back Push the control gate to the left The right hand solenoid is released again blocking further movements DANGER If the interlocking of the control gate is eliminated switching operations are possible that ...

Page 172: ...or left position to the center position again Remove the plug according to the position of the control gate and push the solenoid back with the screwdriver Push the control gate to the center position After work completion pull the screwdriver out and refit the stopper The solenoid is released again blocking further movements Fig 200 Pushing the control gate to the center position basic scheme ...

Page 173: ...ntermediate position electrical Q0 OPEN it is not interlocked by a locking device when the feeder is earthed mechanical Additionally electromechanical interlocks may be fitted for disconnectors and earthing switches or for earthing switches Fig 202 Bus coupler system 1 described system 2 applies accordingly Switching operation Switching operation is only possible if Type Q1 CLOSED OPEN Q0 OPEN Q15...

Page 174: ... mechanical Additionally electromechanical interlocks may be fitted for disconnectors and earthing switches or for earthing switches Fig 204 Top mounted bus sectionalizer system 2 described system 1 applies accordingly Switching operation Switching operation is only possible if Type Q21 CLOSED OPEN Q215 OPEN mechanical Q22 CLOSED OPEN Q225 OPEN mechanical Q215 CLOSED OPEN Q21 OPEN mechanical Q225 ...

Page 175: ...r Q62 OPEN mechanical Additionally electromechanical interlocks may be fitted for disconnectors and earthing switches or for earthing switches Fig 207 Busbar earthing switch Switching operation Switching operation is only possible if Type Q15 or Q25 CLOSED OPEN opening for operating lever is open optionally mechanical with locking device or electromechanical Additionally electromechanical interloc...

Page 176: ... accordance with national standards On a live panel With a test unit according to IEC 61243 5 EN 61243 5 On all phases Use only voltage indicators or devices according to EN 61 243 5 IEC 61 243 5 VDE 0682 415 to test the function of the coupling section The interface conditions have not changed as against the old standard VDE 0681 Part 7 the corresponding indicators can still be used Perform repea...

Page 177: ...ection Use only voltage indicators or devices according to EN 61 243 5 IEC 61 243 5 VDE 0682 415 to test the function of the coupling section The interface conditions have not changed as against the old standard VDE 0681 Part 7 the corresponding indicators can still be used DANGER High voltage Danger Do only modify the factory setting of the C2 module in the voltage detecting system CAPDIS S1 S2 a...

Page 178: ...n VOIS VOIS R CAPDIS S1 CAPDIS S2 L1 L2 L3 L1 L2 L3 L1 L2 L3 A0 Operating voltage not present CAPDIS S2 A1 Operating voltage present A2 Operating voltage not present Auxiliary power not present CAPDIS S2 A3 Failure in phase L1 operating voltage at L2 and L3 for CAPDIS Sx also earth fault indication A4 Voltage not operating voltage present A5 Indication Test passed lights up shortly A6 Indication T...

Page 179: ...cators can still be used Fig 212 Operating elements WEGA 1 2 2 2 LC display illuminated for WEGA 2 2 Test socket L3 Test socket L1 Earth socket Test socket L2 Display Test button Indication WEGA 1 2 WEGA 2 2 L1 L2 L3 L1 L2 L3 A0 For WEGA 2 2 Operating voltage not present auxiliary power present LCD illuminated A1 Operating voltage present For WEGA 2 2 Auxiliary power present LCD illuminated A2 Ope...

Page 180: ...tching operations in the circuit breaker panel Connecting the feeder with busbar system 1 1 Initial situation 2 Push the selector gate to the left 3 Push the left hand control gate to the left 4 Switch the three position disconnector to CLOSED position insert the operating lever for the DISCONNECTING function and turn 180 clockwise ...

Page 181: ...STRUCTIONS 8DB10 Revision 06 181 214 Operation 5 Remove the operating lever for the DISCONNECTING function The left hand control gate returns to its initial position 6 Push the selector gate to the center position 7 Close the circuit breaker ...

Page 182: ...INSTALLATION AND OPERATING INSTRUCTIONS 8DB10 864 5091 9 Disconnecting the feeder from busbar system 1 1 Initial situation 2 Open the circuit breaker 3 Push the selector gate to the left 4 Push the left hand control gate to the left ...

Page 183: ... three position disconnector to OPEN position insert the operating lever for the DISCONNECTING function and turn 180 counter clockwise 6 Remove the operating lever for the DISCONNECTING function The left hand control gate returns to its initial position 7 Push the selector gate to the center position ...

Page 184: ...64 5091 9 Feeder earthing 1 Initial situation 2 Push the selector gate to the left 3 Push the left hand control gate to the right 4 Switch the three position disconnector to READY TO EARTH position insert the operating lever for the READY TO EARTH function and turn 180 clockwise ...

Page 185: ...STRUCTIONS 8DB10 Revision 06 185 214 Operation 5 Remove the operating lever for the READY TO EARTH function The left hand control gate returns to its initial position 6 Push the selector gate to the center position 7 Close the circuit breaker ...

Page 186: ... Revision 06 INSTALLATION AND OPERATING INSTRUCTIONS 8DB10 864 5091 9 Feeder de earthing 1 Initial situation 2 Open the circuit breaker 3 Push the selector gate to the left 4 Push the left hand control gate to the right ...

Page 187: ...three position disconnector to OPEN position insert the operating lever for the READY TO EARTH function and turn 180 counter clockwise 6 Remove the operating lever for the READY TO EARTH function The left hand control gate returns to its initial position 7 Push the selector gate to the center position ...

Page 188: ...RUCTIONS 8DB10 864 5091 9 42 2 Switching operations in the bus sectionalizer panel Coupling the busbar sections of system 1 1 Initial situation 2 Push the left hand selector gate to the right 3 Push the right hand selector gate in the left hand panel to the left ...

Page 189: ...n disconnector to CLOSED position insert the operating lever for the DISCONNECTING function and turn 180 clockwise 5 Remove the operating lever for the DISCONNECTING function The right hand control gate in the left hand panel returns to its initial position 6 Push the left hand selector gate to the center position ...

Page 190: ...B10 864 5091 9 7 Push the right hand selector gate to the left 8 Push the left hand control gate in the right hand panel to the left 9 Switch the three position disconnector to CLOSED position insert the operating lever for the DISCONNECTING function and turn 180 clockwise ...

Page 191: ...1 214 Operation 10 Remove the operating lever for the DISCONNECTING function The left hand control gate in the right hand panel returns to its initial position 11 Push the right hand selector gate to the center position 12 Close the circuit breaker in the right hand panel ...

Page 192: ... 2 Push the selector gate to the right 3 Push the right hand control gate to the left 4 Switch the three position disconnector to CLOSED position insert the operating lever for the DISCONNECTING function and turn 180 clockwise 5 Remove the operating lever for the DISCONNECTING function The right hand control gate returns to its initial position 6 Push the selector gate to the left ...

Page 193: ... Switch the three position disconnector to CLOSED position insert the operating lever for the DISCONNECTING function and turn 180 clockwise 9 Remove the operating lever for the DISCONNECTING function The left hand control gate returns to its initial position 10 Push the selector gate to the center position 11 Close the circuit breaker ...

Page 194: ...tion insert the operating lever for the DISCONNECTING function and turn 180 clockwise 4 Remove the operating lever for the DISCONNECTING function The left hand control gate returns to its initial position 5 Push the right hand control gate to the left 6 Switch the three position disconnector to CLOSED position insert the operating lever for the DISCONNECTING function and turn 180 clockwise 7 Remov...

Page 195: ...DISCONNECTING function and turn 180 counter clockwise 4 Remove the operating lever for the DISCONNECTING function The left hand control gate returns to its initial position 5 Push the right hand control gate to the left 6 Switch the three position disconnector to OPEN position insert the operating lever for the DISCONNECTING function and turn 180 counter clockwise 7 Remove the operating lever for ...

Page 196: ...e DISCONNECTING function and turn 180 clockwise 4 Remove the operating lever for the DISCONNECTING function The left hand control gate returns to its initial position 5 Push the right hand control gate to the right 6 Switch the three position disconnector to READY TO EARTH position insert the operating lever for the READY TO EARTH function and turn 180 clockwise 7 Remove the operating lever for th...

Page 197: ...r the READY TO EARTH function and turn 180 counter clockwise 4 Remove the operating lever for the READY TO EARTH function The right hand control gate returns to its initial position 5 Push the left hand control gate to the left 6 Switch the three position disconnector to OPEN position insert the operating lever for the DISCONNECTING function and turn 180 counter clockwise 7 Remove the operating le...

Page 198: ...he DISCONNECTING function and turn 180 clockwise 4 Remove the operating lever for the DISCONNECTING function The right hand control gate returns to its initial position 5 Push the left hand control gate to the right 6 Switch the three position disconnector to READY TO EARTH position insert the operating lever for the READY TO EARTH function and turn 180 clockwise 7 Remove the operating lever for t...

Page 199: ...disconnector to CLOSED position insert the operating lever for the DISCONNECTING function and turn 180 clockwise 4 Remove the operating lever for the DISCONNECTING function The control gate returns to its initial position 1 Initial situation 2 Push the control gate to the left 3 Switch the three position disconnector to OPEN position insert the operating lever for the DISCONNECTING function and tu...

Page 200: ...ating lever for the READY TO EARTH function and turn 180 clockwise 4 Remove the operating lever for the READY TO EARTH function The control gate returns to its initial position 1 Initial situation 2 Push the control gate to the right 3 Switch the three position disconnector to OPEN position insert the operating lever for the READY TO EARTH function and turn 180 counter clockwise 4 Remove the opera...

Page 201: ...ove is to be applied please contact the regiuonal Siemens representative DANGER High voltage Danger Cable testing may produce flashovers which can cause death or serious bodily injuries Cable testing may only be performed by qualified personnel who is familiar with the danger involved The permissible test voltages must not be exceeded Keep safety distances Install barriers Switch on warnings ATTEN...

Page 202: ... Cable testing with connected cable Fig 214 Test arrangement with connected cable Earth the feeder see page 167 Feeder earthing Short circuit capacitive test sockets and test sockets on integrated voltage detecting systems e g CAPDIS Open the circuit breaker see page 148 Opening the circuit breaker manually Switch three position disconnector to OPEN position see page 155 Opening the three position...

Page 203: ...ear should be inspected at the following intervals DANGER High voltage Danger Do always observe the Five Safety Rules Isolate the switchgear Secure against reclosing Verify safe isolation from supply Earth and short circuit Cover or barrier adjacent live parts DANGER High voltage Danger Touching live parts will cause death or serious injuries Switchgear maintenance may only be performed by qualifi...

Page 204: ...ger of suffocation SF6 gas is heavier than air and concentrates first near to the floor and in floor openings Do not let SF6 gas get into the environment While working with SF6 gas provide for sufficient ventilation After working with SF6 gas vent the cable basement and any hollows in the floors with special care Observe the safety data sheet for SF6 gas Cover or barrier adjacent live parts To be ...

Page 205: ...sation etc we recommend to clean the external parts and if necessary to renew the anti corrosion protection greasing To do this you may only use the materials specified hereafter on the individual functional parts of the circuit breaker Fig 215 Greasing plan for 3AH49 operating mechanism Isoflex Topas L 32 Shell Tellus Oil 32 Curve contour Bearing for deflection lever Closing latch Auxiliary switc...

Page 206: ... 32 Shell Direct GmbH Suhrenkamp 71 D 22335 Hamburg ATTENTION Parts of the switchgear that cannot be dismantled may be damaged if they come into contact with cleaning agents Do not wash joints and bearings which cannot be dismantled with a cleaning agent DANGER For protection of personnel and environment Read the instructions for use of cleaning agents carefully Observe the warnings e g inflammabl...

Page 207: ...or circuit diagram 44 9 Spare parts Due to the fact that all parts of this switchgear type have been optimized to last the normal service life it is not possible to recommend particular spare parts Designation Manufacturer Application Comment Polylub GLY 801 Siemens Current carrying fixed mounted connections current conductors and earthing bars connections flanges with toroidal sealing rings No gr...

Page 208: ...e switchgear mainly consists of the following materials Steel Copper Aluminum Cast resin Fiber reinforced plastics Rubber materials Ceramic materials Lubricants The switchgear can be recycled in ecological manner in compliance with existing legislation Auxiliary devices such as short circuit indicators have to be recycled as electronic scrap Any existing batteries have to be recycled professionall...

Page 209: ...rvice Hotline Customer Support Global 49 180 524 7000 support energy siemens com 24 hours Customer Support Brazil only for Brazilian market 55 11 4585 8040 suporte br siemens com local working hours Customer Support India only for Indian market 91 1 800 419 7477 service energy in siemens com local working hours ...

Page 210: ...ng operations 180 Circuit breaker panel switchpanel pole 20 Circuit breaker activating undervoltage release 144 Circuit breaker charging the closing spring manually 151 Circuit breaker design 22 Circuit breaker emergency release 149 Circuit breaker manual closing 148 Circuit breaker manual opening 148 Circuit breaker sealing the pushbuttons 150 Circuit breaker test operation with auxiliary voltage...

Page 211: ...llation tools 61 Installation voltage transformer 4MU4 101 Installation voltage transformer 4MT7 104 Insulating gas SF6 44 Integrated varistor 44 Interlocks 173 IP31D 133 L Leakage test 128 Lubricants 207 M Maintenance recommendation 203 Maintenance unit 92 Maintenance bolted joints and seals 204 Maintenance safety instructions 203 Maintenance vacuum circuit breaker operating mechanism 205 Make pr...

Page 212: ...e position disconnector with motor operating mechanism 157 Three position disconnector activating ready to earth function 155 Three position disconnector control elements 152 Three position disconnector deactivating ready to earth function 157 Three position disconnector emergency operation 159 Three position disconnector emergency release 158 Three position disconnector function 24 Three position...

Page 213: ...oltage transformer 4MT3 removal 107 Voltage transformer 4MT7 installation 104 Voltage transformer 4MT7 removal 111 Voltage transformer 4MU4 installation 101 Voltage transformer 4MU4 removal 109 Voltage transformer damping resistor 113 Voltage transformer with or without three position disconnector 114 Voltage transformers 28 Voltage transformers removal 107 W WEGA 1 2 2 2 179 ...

Page 214: ... Revision 06 INSTALLATION AND OPERATING INSTRUCTIONS 8DB10 864 5091 9 Imprint Siemens AG Energy Management Medium Voltage Systems Schaltanlagenwerk Frankfurt Carl Benz Str 22 D 60386 Frankfurt Siemens AG 2016 ...

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