GHA. Medium-voltage switchgear. Gas-insulated switchgear 40.5 kv ( 40 ka) for single and double busbar panels. Assembly Instructions

Transcription

1 Medium-voltage switchgear GHA Gas-insulated switchgear 40.5 kv ( 40 ka) for single and double busbar panels Assembly Instructions No. AGS Edition 04/04

2 Manufacturer: Schneider Electric Sachsenwerk GmbH Rathenaustrasse D Regensburg Germany ( +49 (0) (0) Service: Schneider Electric GmbH MA GIS Rathenaustrasse D Regensburg Germany ( +49 (0) (0)

3 Contents Remarks on this manual...5 Purpose and target group... 5 Reference documents... 5 Terms and symbols used... 6 Abbreviations used... 6 Any questions or suggestions?... 6 Safety provisions...7 Design, description, variants...8. Switchgear panels with single busbar Panels with double busbar....3 Dimensions and weights Applicable standards Environmental and operating conditions Intended use Disposal after the end of service life Packaging, transport, storage Shipping units Transport Storage Assembly Safety provisions Important instructions for assembly Requirements regarding the switchgear room Transporting the panels on the construction site Transport of panel by means of a crane Transport using the transport frame Transporting the panels onto the base frame Attachment of pressure relief duct Remove cable compartment cover and shutters Cable compartment interlock (optional) Remove cable compartment cover and shutters Installation of panels Installation of the first switchgear panel Removal of transport securing device Pre-coat the high-quality electrical joints of the busbar link Preassembling the clamping contacts Screw-fastening the panels to one another Compensating shutters for the panel front Busbar link: B link Press silicone sleeve back Connecting the busbar (fasten preassembled clamping contacts) Contact resistance measurement of busbar screw fastening Fasten silicone sleeve to adjacent panel Cover of busbar link in case of panels without pressure relief duct Current transformer on the busbar for fan control Reinforcement Screw-fastening the panel to the base frame Mounting the earth bus Busbar attachments Safety provisions Assembly of surge arresters Assembly of voltage transformers Low-voltage cabinet Assembly Connecting the control lines AGS Edition 04/04 3

4 Contents 7 Switchgear termination Attachment of the protective tank to the left-hand / right-hand end of the busbar Switchgear without pressure relief duct Overview Attachment of the right-hand or left-hand side wall Extension of side wall in double busbar switchgear Attachment of fan Switchgear with pressure relief device Overview Cover plate Attachment of pressure relief duct Attachment of side walls for pressure relief from the switchgear room Attachment of side walls for pressure relief into the switchgear room High-voltage connection Cable compartment with base plates (optional) Outer cone-type bushing Inner cone-type socket Commissioning Final steps Attachment of the tool board Cleaning and checking assembly Remount covers (see Chapter 4.6, page 9) Damaged paint Inspection Commissioning... 8 Optional high-voltage test on commissioning...8. Power frequency withstand test of the busbar Cable testing Cable jacket test Replacement of components and panels Annex Auxiliary products Required tools (not included in the scope of supplies) Coating the contact surfaces Screw locking compound Specifications for screw connections AGS Edition 04/04

5 Remarks on this manual For information which is not included in this manual and the assembly drawings supplied with the equipment, please contact the manufacturer. As our products are subject to continuous further development, we reserve the right to make changes regarding the standards, illustrations and technical data. All dimensions specified in this manual are in millimeters. Purpose and target group This Technical Manual describes assembly and commissioning of gas-insulated medium-voltage switchgear units of the GHA series. It is an integral part of the product and must be stored so that it is readily accessible at all times for and can be used by persons who are to work on the switchgear. If the switchgear is sold to new owners, they must receive this document along with the switchgear. This Technical Manual is exclusively intended for specialist electricians who have been certified for the GHA series (training certificate). This Technical Manual cannot describe every imaginable individual case or every customer-specific version of the product. Thus, only the basic assembly procedure is described. The detailed assembly work for the switchgear model in question is illustrated for each operation required in the assembly drawings provided to this effect. Reference documents The following additional documents must be complied with: Purchase agreement with the stipulations regarding the switchgear-specific equipment and the legal details The appropriate switchgear-specific circuit diagrams / documentation GHA Operating Manual The Operating Manuals of the devices installed in the switchgear: Voltage detection systems, e. g. IVIS (no. AGS ) Insulating gas monitoring system IDIS (no. AGS ) System for the detection of internal arcs ILIS (optional) (no. AGS ) Devices in the low-voltage cabinet. The Assembly Instructions of the manufacturer of the cable connection systems to be connected to the switchgear of the voltage transformers. The assembly drawings supplied with the equipment AGS Edition 04/04 5

6 Remarks on this manual Terms and symbols used This Technical Manual uses certain terms and symbols. They warn about dangers or provide important information which must be complied with in order to avoid danger to persons and damage to equipment: "Danger!" This danger symbol warns about dangerous electrical voltage. Contact with voltage may result in fatal injury! "Warning!" This danger symbol warns about the risk of injury. Please comply with all the provisions identified by this symbol in order to avoid death or serious injury. "Warning!" This danger symbol warns about the risk of falling. "Notice:" This instruction symbol is used for information which is important to avoid material damage. Abbreviations used For reasons of simplification, the following abbreviations are used in this manual: ESS = Single busbar DSS = Double busbar SS = Busbar SS = Busbar SS-StW = Busbar current transformer TrSS = Disconnector in the busbar run U r = Rated voltage I r = Rated normal current (feeder panel) Any questions or suggestions? Do you have any questions or suggestions regarding this manual, or do you require further information? We always strive to provide you with the best-possible information for optimum, safe use of our products. Thus, do not hesitate to contact us if you have any recommendations, amendments or proposals for improvement. 6 AGS Edition 04/04

7 Safety provisions The work described in this manual may only be performed by specialist electricians with proven experience in conjunction with the GHA series and the applicable safety provisions. Please read the whole manual carefully before working on the switchgear. Applicable standards and regulations: Metal-enclosed AC switchgear for rated voltages > kv up to including 5 kv: IEC Use and handling of sulphur hexafluoride (SF 6 ) in high-voltage switchgear: IEC The locally applicable accident prevention, operating and work instructions must be complied with. Installation: IEC 6936-/EN Operation of electrical equipment: EN 500- The national standards applicable in the country where the equipment is to be installed must be complied with. Before performing work on the panels, it is essential that you comply with the following instructions: Danger! Risk of fatalities due to high voltage. Isolation from high voltage and earthing must always be ensured before performing assembly or maintenance work. Danger! Risk of fatalities due to supply voltage. Isolation from supply voltage must always be ensured before performing assembly or maintenance work. Warning! Risk of injury due to movable parts in mechanical drives. For maintenance work, isolate the system from the supply voltage release the circuit-breaker s energy storing device by OFF- ON-OFF operation and make-proof earthing switches by the appropriate ON-operation. Warning! After removing covers from a switchgear unit, operator safety may be reduced regarding internal arcs unless the switchgear is isolated from the power supply. Optimum operator safety is only ensured if the switchgear is completely disconnected from the power supply and grounded during assembly. Behaviour in case of incidents or accidents For the case of an internal fault, the GHA switchgear features pressure relief ports which prevent the panels and the switchgear from bursting. This Technical Manual does not include information regarding the safety of buildings in case of internal faults (pressure load of the switchgear room and necessary pressure relief ports). Pressure calculations for switchgear rooms incl. recommendations regarding pressure relief ports can be provided on request against a fee. For further details, please contact the manufacturer. In case of fire or of internal faults, toxic and caustic decomposition products may be produced. Comply with the locally applicable accident and safety provisions. In case of personal injury, take first-aid measures or cause them to be taken. AGS Edition 04/04 7

8 Design, description, variants. Switchgear panels with single busbar a Busbar tank with three-position switch Jack rings 3 Busbar link 4 Circuit-breaker tank with vacuum interrupter chambers 5 Toroidal-core current transformer 6a Outer cone-type bushing 6b Inner cone-type socket 7 Voltage transformer (optional) 8 Cable support 9 Cable compartment cover 0 Disconnecting device for voltage transformer (optional) Test sockets for cable test Capacitive voltage testing system 3 IDIS indicator for insulating gas monitoring 4 Hinged front frame 5 Manual operator interface 6 Low-voltage cabinet 7 IDIS gas density switch Fig. Circuit-breaker panel with outer cone-type bushing 5 0 6b Fig. Circuit-breaker panel with inner cone-type socket b 8 8 AGS Edition 04/04

9 Design, description, variants L 4 5 R Right-hand busbar tank with threeposition switch Left-hand busbar tank with threeposition switch 3 Jack rings 4 Busbar link 5 Circuit-breaker tank with vacuum interrupter chambers 6 Toroidal-core current transformer (optional) 7 Voltage transformer (optional) 8 Cable compartment cover 9 Test sockets (optional) 0 IDIS indicator for insulating gas monitoring Hinged front frame Manual operator interface 3 Low-voltage cabinet 4 IDIS gas density switch Fig. 3 Bus section coupler, shown for rated current I r 000 A L R 6 8 Fig. 4 Bus section coupler, shown for rated current I r 500 A AGS Edition 04/04 9

10 Design, description, variants Busbar attachments Fig. 5 Busbar voltage transformers ( variants available) Fig. 6 Busbar surge arresters ( variants available) Fig. 7 Busbar earthing switch 0 AGS Edition 04/04

11 Design, description, variants. Panels with double busbar 3 4a Gas density switch of the IDIS system for busbar (rear busbar) Busbar link SS 3 Circuit-breaker tank with vacuum interrupter chambers 4a Outer cone-type bushing 4b Inner cone-type socket 5 Toroidal-core current transformer 6 Voltage transformer (optional) 7 Cable support 8 Cable compartment cover 9 Disconnecting device for voltage transformer (optional) 0 Capacitive voltage testing system IDIS indicator for insulating gas monitoring Hinged front frame 3 Manual operator interface 4 Low-voltage cabinet 5 Gas density switch of the IDIS system for busbar (upper busbar) 6 Busbar link SS 7 Tank, busbar (upper busbar) with three-position switch 8 Jack rings 9 Tank, busbar (rear busbar) with disconnector 0 Test sockets for cable test Fig. 8 Circuit-breaker panel with outer cone-type bushing b b Fig. 9 Circuit-breaker panel with inner cone-type socket AGS Edition 04/04

12 Design, description, variants Fig. 0 Bus section coupler, busbar (busbar analogous) Fig. Bus coupler Fig. Metering panel with busbar voltage transformer or with busbar surge arrester (not shown) Fig. 3 Bus section coupler, busbar (busbar analogous) AGS Edition 04/04

13 Design, description, variants.3 Dimensions and weights Switchgear panels with single busbar (see Fig. 4, page 6) Panel type Rated current I r [A] Panel width A [mm] Depth [mm] Depth 3 [mm] Approx. weight [kg] 4 Feeder panel / / L R Bus section coupler / / (Height of low-voltage 00 cabinet: 800/00) Bus sectionalizer with disconnector Busbar measurement with current transformer /780 (Height of low-voltage cabinet: 800/00) 300 Attached busbar earthing switch +70 Disconnecting device attached to the busbar (for voltage transformer or surge arrester) (panel height depending on the attachment design, see Chapter., page 0) Voltage transformer for outgoing feeder cable / busbar / (3 x 40) In the case of feeder panels, the rated current I r refers to the feeder (max. busbar nominal current: 500 A) The values listed in the Tables are referred to a panel depth without pressure relief duct on the rear. Depth of panels with rear pressure relief duct: 595 mm 3 Damping resistor (for optional voltage transformer) on the low-voltage cabinet: specified height +50 Height of pressure relief duct: 400 Height of pressure relief duct with fan: including the low-voltage cabinet, without voltage transformer and for feeder panels with outer cone-type bushing feeder panels with inner cone-type socket: max kg Panels with rear pressure relief duct: max kg 5 The dimensions depend on the cable connection system; inner cone-type socket / outer cone-type bushing system 6 Voltage transformer on the busbar can be removed by pulling it laterally (see Fig. 5, page 0) 7 Voltage transformer on the busbar can be removed by pulling it upwards (see Fig. 5, page 0 AGS Edition 04/04 3

14 Design, description, variants Switchgear panels with double busbar (see Fig. 5, page 6) Panel type Rated current I r [A] Panel width A [mm] Depth [mm] Depth 3 [mm] Approx. weight [kg] 4 Feeder panel / Bus section coupler Bus section coupler 50/ / / (Height of low-voltage 400 cabinet: 800/00) Bus coupler 50/ Bus sectionalizer with disconnector Busbar measurement with current transformer / In the case of feeder panels, the rated current I r refers to the feeder (max. busbar nominal current: 500 A). The values listed in the Tables are referred to a panel depth without pressure relief duct on the rear. Technical details and the design for the rear pressure relief duct must be clarified with the manufacturer as required. 3 Damping resistor (for optional voltage transformer) on the low-voltage cabinet: specified height +50 Height of pressure relief duct: 400 Height of pressure relief duct with fan: The specified weights apply including the low-voltage cabinet and without the voltage transformer; they refer to feeder panels with outer cone-type bushing. - Feeder panels with inner cone-type socket: max kg Panels with rear pressure relief duct: max kg 5 The dimensions depend on the cable connection system; inner cone-type socket / outer cone-type bushing 4 AGS Edition 04/04

15 Design, description, variants Panel type Rated current I r [A] Panel width A [mm] Depth [mm] Depth 3 [mm] Approx. weight [kg] 4 Metering panel for voltage transformer / attached busbar earthing switch / attached voltage transformer for outgoing feeder cable / busbar + 0 (3 x 40) In the case of feeder panels, the rated current I r refers to the feeder (max. busbar nominal current: 500 A). The values listed in the Tables are referred to a panel depth without pressure relief duct on the rear. Technical details and the design for the rear pressure relief duct must be clarified with the manufacturer as required. 3 Damping resistor (for optional voltage transformer) on the low-voltage cabinet: specified height +50 Height of pressure relief duct: 400 Height of pressure relief duct with fan: The specified weights apply including the low-voltage cabinet and without the voltage transformer; they refer to feeder panels with outer cone-type bushing. - Feeder panels with inner cone-type socket: max kg Panels with rear pressure relief duct: max kg 5 The dimensions depend on the cable connection system; inner cone-type socket / outer cone-type bushing 6 Voltage transformer can be removed by pulling it laterally (see Fig., page ) 7 Voltage transformer can be removed by pulling it upwards AGS Edition 04/04 5

16 Design, description, variants /780 with low-voltage cabinet 800/00 mm Height depends on the busbar cooler attachments 3 Panel depth depending on rated current I r of the panel (without/with cooler, see Table) 4 Depth of panel with pressure relief duct 5 Damping resistor 6 Fan attachment A 340/ Fig. 4 Dimensions of a series GHA single busbar panel /780 with low-voltage cabinet 800/00 mm Height depends on the busbar cooler attachments 3 Panel depth depending on rated current Ir of the panel (see Table) 4 Damping resistor 5 Fan attachment 6 Depth of panel with pressure relief duct 7 Depth of panel with pressure relief duct and bus section coupler of the rear busbars (I r = 500 A) A 700/ /0 7 Fig. 5 Dimensions of a series GHA double busbar panel 6 AGS Edition 04/04

17 Design, description, variants.4 Applicable standards Type GHA switchgear units are: GHA switchgear units meet the following standards and regulations: metal-enclosed SF 6 -insulated type-tested and prefabricated tested for internal faults (qualification IAC) dimensioned for indoor installation Designation Standards Switchgear IEC 67- IEC Circuit-breaker IEC Earthing switch IEC 67-0 Disconnector IEC 67-0 Current transformer IEC Voltage transformer IEC Voltage detection systems IEC Protection against accidental contact, foreign bodies and water IEC 6059 Installation IEC Operation of electrical equipment EN 500- Insulating gas sulphur hexafluoride SF 6 IEC Use and handling of sulphur hexafluoride (SF 6 ) IEC The national standards applicable in the country where the equipment is to be installed must be complied with. Degree of protection against accidental contact and foreign objects: Degrees of protection against accidental contact and foreign objects according to IEC 6059 Main electric circuits IP65 Drive mechanisms IPX Low-voltage cabinet IP3X Cable compartment IP3X optional IP5X.5 Environmental and operating conditions GHA is an indoor switchgear and may only be operated under normal conditions in acc. with IEC 67-. Operation under conditions deviating from these is only admissible subject to consultation with and written approval from the manufacturer. Ambient conditions (in accordance with IEC 67-) Temperature class "Minus 5 indoors Min./max. ambient temperature C 5 /+40 Average value over 4 hours C 35 mean rel. air humidity: 4 hour/ month % 95/ 90 Installation altitude above sea-level m 000 other values available on request AGS Edition 04/04 7

18 Design, description, variants.6 Intended use Gas-insulated GHA medium-voltage switchgear units are exclusively intended for switching and distributing electrical energies. They may only be used in the scope of the specified standards and the switchgear-specific technical data. Any other utilization constitutes improper use and may result in dangers and damage. Liability Disclaimers The manufacturer shall not be held responsible for damage which occurs if instructions in this Technical Manual are not complied with; the switchgear is not operated according to its intended use (see above); the switchgear is assembled, connected or operated improperly; accessories or spare parts are used which have not been approved by the manufacturer; the switchgear is converted without the manufacturer s approval, or if inadmissible parts are added. No liability is accepted for parts provided by customers, e.g. current transformers..7 Disposal after the end of service life The operating equipment contains the fluorinated greenhouse gas SF 6 covered by the Kyoto Protocol with a global warming potential (GWP) of 00. SF 6 must be recovered and must not be released into the atmosphere. When transporting and handling SF 6, the specifications in IEC 67 High-Voltage Switchgear and Controlgear Part 303 Use and Handling of Sulphur Hexafluoride (SF 6 ), must be complied with. A material and recycling data sheet can be provided on request for the disposal of series GHA switchgear units at the end of their service life. Disposal is performed as a service by the manufacturer s Service Center and is subject to a fee. 8 AGS Edition 04/04

19 3 Packaging, transport, storage 3. Shipping units Delivery is effected in terms of prefabricated single switchgear panels. One transport unit consists of max. individual switchgear panels which are fastened to the pallet. The busbar compartment with three-position switch, the circuit-breaker compartment, the drive mechanisms and the supporting structures are mounted ready for connection and routine-tested. The individual busbar links are mounted on site. The low-voltage cabinets are assembled in the factory or supplied as accessories, depending on the customer s wishes. Packaging If packed exclusively for truck transport, the panels are delivered on a pallet with PE protective film. For sea transport, the units are packed in sealed aluminium foil with desiccant and in a closed wooden case with tightly closed wooden base (also for container transport). In case of air transport, the panels are packaged in wooden crates with a protective PE film hood (dust protection) or in wooden crates, also with closed wooden bases, however without protective hoods (dust protection). Notice: The weight of the entire transport unit is indicated on the packaging. 3. Transport Warning! Danger due to tipping load. Transport units must be protected sufficiently against slipping and tipping during transport. Abb. 6 Do not tip the transport units Transport using a forklift truck Warning! Sufficient stability and evenness of the supporting area (floor) must be ensured. Handle shipping units carefully when unloading and unpacking them Shipping units must be checked upon receipt. Any damage which may have occurred in transit must be recorded and reported to the manufacturer immediately. The consignment must be checked for completeness based on the shipping documents. The supplier must be notified in writing without delay about any possible deviations. AGS Edition 04/04 9

20 3 Packaging, transport, storage The panel may only be transported on a pallet. The entire length of the forks must be placed under the transport unit (Fig. 7). Fig. 7 Transport with forklift truck 3.3 Storage Warning! Sufficient stability and evenness of the supporting area (floor) must be ensured. If the panels are not installed immediately after delivery, they can be stored under the following conditions: Panels must be stored in vertical position, and must not be stacked. Storage only admissible indoors Panels and accessories must be packed in a wooden crate with a dessicant and sealed in aluminium foil (storage period max. years after date of packaging) ºC 5 ºC Fig. 8 Diagram showing the storage conditions 0 AGS Edition 04/04

21 4 Assembly 4. Safety provisions The switchgear panels may only be installed and assembled by the manufacturer s staff or by persons who have been certified for this work. The GHA series switchgear panels are delivered with the circuit-breaker set to OFF, the energy storing device released and the disconnector and earthing switch set to OFF. Warning! Risk of injury due to movable parts in the mechanical drive. The energy storing device of the circuit-breakers and the earthing switches must not be charged during assembly. Warning! Risk of accidents! Watch out for floor openings in the switchgear room. Danger! Danger due to insufficient dielectric strength of high-voltage connections in case of assembly under aggravated ambient conditions. During assembly of the busbar link and the high-voltage connections, it is essential to avoid condensation, dirt and dust deposits. At the time of installation, the ambient temperature must amount to 0 C. Warning! The top sides of the panels are not meant to be walked on. Persons may fall through them, get injured or may damage the panel. When work has to be performed on the panel top - e.g. assembly of deflectors, fans or pressure relief ducts - temporarily position a solid mounting rack to step on. Warning! Risk of injury due to non-respect of the safety provisions in Chapter, on page Important instructions for assembly Notice: Switchgear with pressure relief duct (see Chapter 8, as of page 67): The pressure relief duct must be mounted before the panel is positioned on the base frame. Condensation, dirt and dust should be avoided during assembly on all accounts, in order to prevent damage to the panels. For assembly, observe the assembly drawings supplied with the equipment. Read them before you commence assembly work. The drawing numbers are specified in this manual under the description of the assembly work in question. For all screw connections, refer to the tightening torques specified in the Annex. The transport securing device on the busbars must not be removed before assembly of the busbar link acc. to Chapter 4.7 on page 3. AGS Edition 04/04

22 4 Assembly 4.3 Requirements regarding the switchgear room Notice: Before installing the switchgear panels, make sure that the switchgear room is checked according to the customer-specific switchgear documentation. Observe the minimum distance between the switchgear and the wall of the building. The load-bearing capacity of the fastening areas must correspond to the weight of the switchgear (perform a stress analysis of the building). Check base frame for dimensions and tolerances in position. Check position of floor openings for high-voltage and low-voltage cables. Before the switchgear is positioned at its site of installation, check that the base frame dimensions are precisely correct. Flatness: ± mm/meter Straightness: ± mm/meter Parallelism: ± mm/meter Height difference over the entire length of the switchgear: ± mm Design data of GHA switchgear: Examples for various switchgear panel variants / / / Fig. 9 Location of base frame and ceiling ducts (example: double busbar switchgear) Rear gap cover Steel base frame 3 Ceiling duct for high-voltage connections 4 Wall of building 5 Possible cross-bracings 6 Cooler attachments 7 Side wall 8 Side wall extension for double busbar switchgear AGS Edition 04/04

23 4 Assembly /780 Fig. 0 Example of panels with single busbar in the switchgear room /780 Fig. Example of panels with double busbar in the switchgear room AGS Edition 04/04 3

24 4 Assembly Fig. Example of panels with single busbar and pressure relief duct in the switchgear room Switchgear accessible from the rear: Fig. 3 Example of panels with double busbar and pressure relief duct in the switchgear room Switchgear accessible from the rear: AGS Edition 04/04

25 4 Assembly 4.4 Transporting the panels on the construction site Warning! Make sure the rope or chain is strong enough to bear the weight of the panel and the trucks. Comply with the relevant provisions for hoisting equipment. Warning! On lowering the panels, make sure that the supporting platform is sufficiently stable and even. Warning! Risk of tipping over. During transport, pay attention to the weight distribution. The center of gravity is at gas tank level in the upper part of the switchgear panel. Never move panels without using transport aids. Warning! Risk of accidents. Pay attention to floor openings! 4.4. Transport of panel by means of a crane. Remove transport packaging (protective films).. Attach rope/chains to the jack rings located on the busbar tank (Fig. 4). Notice: The ropes must have the following minimum lengths: L 900 mm 3. Release transport fastening device of the panel from the transport pallet (Fig. 4, item ). 4. Lift the panel carefully with the crane. 5. If necessary, mount transport rollers (Fig. 6). Description of assembly, see following page. 6. Lower the panel slowly to the floor at its place of destination. L 900 Fig. 4 When lifting, make sure that at least the minimum rope length L is used. Transport fastening Fig. 5 Panels with cooler and busbar attachments Use an additional frame for crane transport. Fig. 6 Mounting the transport rollers (see Chap. 4.4., page 6) AGS Edition 04/04 5

26 4 Assembly 4.4. Transport using the transport frame For transport on the floor, a frame must be mounted to the left and right of the switchgear panel (not included in scope of supplies). Assembly. Insert locating pins of transport frame into the lateral bore-holes in the supporting structure of the switchgear panel, and secure them by means of the two knurled screws (Fig. 7, item ).. Actuate front toggle lever (3) to its stop in the direction of the arrow. Press the button on the rear lifting device (4) and actuate lever to its stop in the direction of the arrow till it reaches its stop. 3. The panel is lifted Fig. 7 Mounting the transport rollers Transport frame Knurled screws 3 Front toggle lever 4 Rear lifting device with push-button 5 Switchgear panel Panels with center of gravity located in the rear part (e. g. single busbar panel with bus section coupler on the rear busbar) These panels are delivered from the factory with additional supporting profiles mounted. The supporting profiles must not be removed during assembly. For transport on the floor, the transport rollers must be secured to the supporting profiles to the left and right of the supports provided to this effect (Fig. 8). Remove a supporting profile before screw-fastening the panel to an adjacent panel. A supporting profile - left-hand or right-hand - must always be left mounted to the panel as long as the panel is not screw-fastened to the adjacent panel. Remove supporting profile after having screw-fastened the panels. Fig. 8 Panel with pre-assembled supporting profiles and attached transport rollers 6 AGS Edition 04/04

27 4 Assembly Transporting the panels onto the base frame. Place two U profiles (not included in scope of supplies) on the base frame as traversing aid and block them by (lower) stops against slipping in the base frame (Fig. 9, item ).. Adjust the distance between the two U profiles in accordance with the panel width. When positioning the panels, make sure that the transport rollers are located in the U profiles. 3. Move panel onto the base frame, align front edge (see space assignment plan) and lower the panel. 4. Remove transport rollers and U profiles. Fig. 9 Moving the panel on the base frame U profiles with stop edges as traversing aid Transport frame 3 Switchgear panel 3 AGS Edition 04/04 7

28 L3Fig. GHA 4 Assembly 4.5 Attachment of pressure relief duct Switchgear units are provided with pressure relief duct, if the following is required: Accessibility in acc. with IEC 67-00: Qualification IAC AFLR (accessibility from all sides) and/or Qualification IAC AFL(R) internal arc 40 ka/ s Notice: The pre-assembled pressure relief duct supplied with the equipment must be mounted before the panel is positioned on the base frame. After installation of the panels, mounting may no longer be possible in part.l30 Switchgear panel with single busbar and pressure relief duct Fig. 3 Switchgear panel with double busbar and pressure relief duct TrSS for fan attachment SS- Stw Panel width [mm] The attachment of the pressure relief duct is described in the assembly drawing in question: Busbar system Single busbar Double busbar Pressure relief from the switchgear room with customized duct Pressure relief into the switchgear room Internal arc qualification IAC AFLR, 5 ka/ s Internal arc qualification IAC AFLR, 40 ka/ s AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS0005- AGS0005- AGS AGS AGS AGS AGS AGS AGS Optional fan attachment only to be used for panels without busbar top structure, in this case AGS only in case of I r = 500 A 8 AGS Edition 04/04

29 4 Assembly 4.6 Remove cable compartment cover and shutters Unlocking the cable compartment cover 4.6. Cable compartment interlock (optional) An additional interlock prevents the cable compartment cover from being removed if the earthing switch is not switched ON.. Charge spring mechanism of the circuit-breaker (Fig. 3, item 3). Earth the outgoing feeder cable (see Operating Manual).. Push interlocking slide of cable compartment cover () upwards. At the same time, the cable compartment cover is unlocked and actuation of the earthing switch () interrupted mechanically and electrically. Notice: After removing the cable compartment cover, it is impossible to push the slide (Fig. 3, item ) down. The earthing switch remains locked Fig. 3 Unlock/lock cable compartment cover Insertion opening for manual actuation of the earthing switch Slide for locking/unlocking the cable compartment cover 3 Charge the spring mechanism of the circuit-breaker drive manually (as long no supply voltage is applied). Cable compartment cover Earthing switch Interlocking matrix Earthing switch Cable compartment cover screw-fastened unlocked removed locked ON unlocked OFF locked 3 Locking the cable compartment cover After assembly of the cable compartment cover, press interlocking slide (Fig. 3, item ) down. The earthing switch () can be switched off mechanically and electrically. AGS Edition 04/04 9

30 4 Assembly 4.6. Remove cable compartment cover and shutters Notice: Store screws, bolts and shutters carefully for subsequent reuse. Removing cable compartment cover. Open front frame: Operating shutter without inspection glass: Release the two securing bolts (Fig. 33, item ). Operating shutter with inspection glass: Open interlocking mechanism using the double-bit key (Fig. 34, item ). Then, open the front frame by swinging it to the left.. Unscrew the two securing bolts from the cable compartment cover (3). 3. First pull the cable compartment cover up, then forwards to remove it Fig. 33 Operating shutter without inspection glass Securing bolts of the front panel 3 Securing bolts of cable compartment cover 4 Hinged front frame Fig. 34 Operating shutter with inspection glass Lock and double-bit key 3 Securing bolts of cable compartment cover 4 Hinged front frame 30 AGS Edition 04/04

31 4 Assembly Unscrewing the shutters Notice: Identify panel in accordance with the nameplate on the operating shutter to avoid confusion.. Release screw connection of the operating shutter (Fig. 35, item 5) from the 4 fastening points and remove shutter. Release the fastening of the two lateral covers (4) of the right-hand cable tray and remove covers. 5 Fig. 35 Removal of shutters Hinged front frame Operating shutter 3 Cable compartment cover 4 Cable tray cover 5 Screw connection of operating shutter (4 x) 4 3 AGS Edition 04/04 3

32 4 Assembly 4.7 Installation of panels 4.7. Installation of the first switchgear panel Notice: The position of the first panel is decisive for placement of the subsequent panels, thus it is essential that measuring is effected with the utmost precision!. Place the panel on the base frame according to the switchgear-specific space assignment plan (see Chapter 4.4.3, page 7).. Align panel. Check the panel front for correct horizontal and vertical position. If applicable, lift the panel and place shims in the direct vicinity of the fastening areas, until the horizontal position has been reached. 3. Position the following panel on the base frame next to the first panel according to the switchgear-specific space assignment plan. 4. Remove shutters from the panels as described in Chapter 4.6 as of page Removal of transport securing device Remove transport securing device above the high-quality electrical joints of the busbar link. Remove plastic cover from the busbar bushing (Fig. 36). The plastic hood above the silicone sleeve is attached laterally and on top of the retaining clip (Fig. 37). Remove plastic hood carefully applying little force only. Fig. 36 Plastic cover on the busbar bushing Fig. 37 Plastic hood above the silicone sleeve 3 AGS Edition 04/04

33 4 Assembly Pre-coat the high-quality electrical joints of the busbar link Notice: Make sure the high-quality electrical joints are absolutely clean. Special grease (art. no. AGS ) and the sponge element (art. no. S ) are either included in the scope of supplies or must be purchased separately, depending on the agreement concluded. In case of doubt, please contact the manufacturer as required. Apply special grease and spread it uniformly by means of the sponge element.. Clean the high-quality electrical joints of the busbar link (Fig. 40) using white spirit (art. no. S ) and a lint-free cloth (also micro-fibre cloths).. For each side of a high-quality electrical joint, press a length of approx. 0 mm substance out of the tube and apply it using the sponge element (Fig. 40). In the beginning, apply slightly more (approx. 5 mm), as the sponge also absorbs grease. One tube (90 g) is sufficient for approx. 36 complete high-quality electrical joints (7 high-quality joint surfaces). Abb. 38 Special grease (art. no. AGS ) Abb. 39 Sponge element (art. no. S ) 0-5 Fig. 40 High-quality electrical joint at the busbar bushing Make sure that the inner diameter is greased thoroughly! 0-5 Fig. 4 High-quality electrical joint on the silicone sleeve Make sure the electrode ring is clean! 3. Use the sponge element to spread a uniform thin film of the the special grease over the entire surface. Blank spots not covered by grease should be avoided on all accounts. Once treated, do not touch the surfaces of the high-quality electrical joints any longer. Notice: Busbar bushing (Fig. 40): Check especially the inner diameter of the high-quality electrical joint for non-greased areas and, if necessary, re-coat. Check the electrode ring in the silicone sleeve (Fig. 4, item ) for cleanness and the absence of grease and, if necessary, clean. AGS Edition 04/04 33

34 4 Assembly Preassembling the clamping contacts. The following factory setting of the clamping contacts (Fig. 4) must be checked prior to assembly: Turn the two screws until the two clamping contacts are in loose contact, then turn the screws back by a half turn of the thread.. Clean and grease busbar contact surfaces and contact points on the clamping contact (see Chapter 3.3, page 9). 3. Carefully slip the clamping contacts into the busbar tubes of the left-hand panel. 3 Fig. 4 Check the clamping contact screws. Clean and grease the contact surfaces 3 Insert the contact tips 34 AGS Edition 04/04

35 4 Assembly Screw-fastening the panels to one another. Push panels carefully together. Clearance between busbar tanks: 53 ± mm (Fig. 43, item ).. Connect panels to one another (assembly drawing AGS ): front panel screw connection: 9 x self-locking screw M8 to its stop (Fig. 43, item 3). Panels with a width of 900 or 000 mm are screw-fastened using compensating shutters (see Chapter 4.8, page 36). rear panel screw connection: Screw-fasten connecting link to the jack ring plate x self-locking screw connection M8 (Fig. 43, item ). Panel types Pressure relief duct Mat. no. without with All panel variants, except busbar current transformers Busbar current transformer AGS AGS AGS AGS ± 3 9x Fig. 43 Screw-fastening the panels to one another Check setting 53 ± ; measuring location: Edge shown on the busbar tank Rear panel screw connection: fasten connecting link 3 Screw-fasten panels on the front. AGS Edition 04/04 35

36 4 Assembly 4.8 Compensating shutters for the panel front Required nominal width of the compensating shutter depending on the panel arrangement: Compensating shutters are only required for panels with a width of 900/000 mm (see also switchgear-specific documentation), panels with a width of 600/800 mm do not require compensating shutters in-between each other. The shutters are always supplied in preassembled condition as accessories. The compensating shutter variants are subdivided in accordance with the following dependencies: Height of low-voltage cabinet 800 mm or 00 mm Nominal width of compensating shutter 50 mm or 00 mm, depending on panel arrangement (see Table) Panel with panel width [mm] 900/000 Panel width, adjacent panel (left-hand or right-hand) [mm] Rated width, compensating shutter (left-hand or righthand) [mm] 600/ / A A 4 3 3/5 4 4 / / Fig. 44 Compensating shutters in the panel front Upper compensating shutter, width 00 mm Lower compensating shutter, width 00 mm 3 Lower compensating shutter, width 50 mm 4 Screw connection M8 ( x per shutter) 5 Upper compensating shutter, width 50 mm 36 AGS Edition 04/04

37 4 Assembly Front compensating shutter, attachment to panel In-line panel, lefthand Panel width In-line panel, lefthand Panel width In-line panel, lefthand Panel width 600/ /000 In-line panel, lefthand Panel width 600/800/900/000 In-line panel, lefthand Panel width LV cabinet height End panel, lefthand 600/800 mm In-line panel, right-hand Panel width not required 600/800 AGS LV cabinet height AGS End panel, lefthand 900/000 mm AGS LV cabinet height AGS Center panel 600/800 mm 900/000 In-line panel, right-hand Panel width 600/800/900/000 In-line panel, right-hand Panel width not required 600/800 AGS AGS AGS AGS LV cabinet height LV cabinet height AGS AGS AGS AGS Center panel 900/000 mm AGS AGS AGS AGS End panel, righthand 600/800 mm 600/800 not required 900/000 In-line panel, lefthand Panel width 600/800/900/000 In-line panel, lefthand Panel width AGS LV cabinet height AGS End panel, righthand 900/000 mm AGS LV cabinet height AGS End panel, lefthand 900 mm AGS AGS AGS AGS / / /000 In-line panel, right-hand Panel width 600/800/900/000 In-line panel, right-hand Panel width In-line panel, right-hand Panel width In-line panel, right-hand Panel width 600/ /000 AGS Edition 04/04 37

38 4 Assembly Front compensating shutter, attachment to panel In-line panel, lefthand Panel width 600/ /000 In-line panel, lefthand Panel width 600/800 LV cabinet height Center panel 900/000 mm AGS AGS AGS AGS AGS AGS AGS LV cabinet height AGS End panel, righthand 900 mm AGS AGS /000 not required In-line panel, right-hand Panel width 600/ / / /000 In-line panel, right-hand Panel width 38 AGS Edition 04/04

39 4 Assembly 4.9 Busbar link: B link L3 L L SS SS L L L3 Fig. 45 Overview of designations for busbars and phase angle Upper busbar = SS Rear busbar = SS Detail drawing of a B-link Fig. 46 Overview of busbar link Busbar support with high-quality electrical joint Busbar 3 Spacer pin 4 Retaining clip 5 Busbar clamping contacts 6 Silicone sleeve with securing half-shells 7 AGS Edition 04/04 39

40 4 Assembly Tool for pressing the silicone sleeve back (see also Annex, Chapter 3., page 85) 4.9. Press silicone sleeve back Fig. 47 Tool for compressing the silicone sleeve - fork Fig. 48 Tool for compressing the silicone sleeve (alternative) - claw fastener To get access to the pre-assembled clamping contacts and to complete the busbar link, it is necessary to press the silicone sleeve back. To this effect, only the auxiliary equipment approved by the manufacturer may be used, e.g. the fork Fig. 47 and the claw fastener Fig. 48. Position the tool according to the illustration and press the silicone sleeve back. Relieve the silicone sleeve. To do so, slowly release the silicone sleeve using the tool being used, and remove the tool. Notice: Switchgear units with fan are equipped with a current transformer on the busbar link for fan control. Before mounting the busbar link, refer to Chapter 4.9.6, page AGS Edition 04/04

41 4 Assembly 4.9. Connecting the busbar (fasten preassembled clamping contacts) Notice: The two lugs of the upper clamping contact must be located between the busbar tubes. Assembly drawing for single and double busbar: AGS Position the preassembled clamping contacts (see Chapter 4.7.4, page 34) acc. to Fig. 49, item. The two lugs of the upper clamping contact must be located between the busbar tubes (see Fig. 49, item 4).. Tighten the clamped connection with a torque of 8 ± Nm. 3. After tightening the clamped connection applying the specified torque, remove the red film from the sandwich label (5). A green stripe appears which indicates that the busbar link has been established correctly. 8 ± Nm mm 4 Fig. 49 Busbar link Tool Clamping contacts 3 Busbar 4 Locating lugs 5 Sandwich label 3 AGS Edition 04/04 4

42 4 Assembly Contact resistance measurement of busbar screw fastening Notice: Comply with the manufacturer s specifications regarding the contact resistance measuring unit.. Set the feeder panel for resistance measurement in testing position (A) (Fig. 50): Switch disconnector and circuit-breaker ON, refer also to operating manual.. Connect the clip-on ammeter probes of the contact resistance measuring unit to the high-voltage cable connection in the right-hand panel (B). Illustrated: Outer cone-type bushing. Use suitable current probes for the inner cone-type bushing. 3. On the lined-up panel, connect clip-on ammeter probes of the contact resistance measuring unit to the busbar tube by means of inner cone-type current probes (C). 4. Apply test current 00 A DC (D). 5. Measure contact resistance R between the busbar tube and the lug of the clamping contact (E). Set value R: 5 μω. If the measured value exceeds the specified value: Undo busbar screw fastening. Clean contact surfaces carefully and repeat the mounting and measuring procedure. In this way, check the contact resistance of all phases between all panels. E A R 5 µω 0043 B C D 00 A DC Fig. 50 Contact resistance measurement 4 AGS Edition 04/04

43 4 Assembly Checking high-quality electrical joints Mounting the retaining clips Fasten silicone sleeve to adjacent panel Notice: Check pre-coated high-quality electrical joints again for absolute cleanness. The surfaces of the high-quality electrical joint must be coated completely and uniformly with a thin layer of special grease. Check high-quality electrical joints for non-greased areas and, if necessary, coat again, see Chapter 4.7.3, page Relieve the silicone sleeve. To do so, slowly release the silicone sleeve using the tool being used, and remove the tool. 7. Clean spacer pins (accessories, Fig. 46, item 3, page 39) and welding studs and coat them with a screw locking compound (see Chapter 3.3, page 9). Screw-fasten spacer pin onto the welding studs. 8. Slip retaining clip onto the two pins. The sides of the retaining clip must butt against the retaining lugs of the securing half-shells. Subsequently, position the cage with the cup springs and fasten retaining clip by means of a M8 self-locking nut. The surfaces of the high-quality electrical joint must be compressed by the retaining clip. 3 (0 ±,5 Nm) 4 ( ±,5 Nm) Fig. 5 Fastening the silicone sleeve to the adjacent panel Spacer pin Retaining clip 3 Cup spring package 4 Nut AGS Edition 04/04 43

44 4 Assembly Cover of busbar link in case of panels without pressure relief duct Panel width, adjacent panel, left-hand [mm] Panel width [mm] Single busbar Assembly drawing Double busbar 600/ AGS AGS / AGS AGS / /800 AGS AGS / AGS AGS / AGS AGS / AGS AGS / AGS AGS SS-StW 600/800 AGS AGS SS-StW 900 AGS AGS /800 SS-StW AGS AGS SS-StW AGS AGS Fig. 5 Cover of busbar link Cover of upper busbar link Cover of rear busbar link 44 AGS Edition 04/04

45 4 Assembly Cover of busbar link in case of panels with pressure relief duct Panel width [mm] Fig. 53 Cover of busbar link in case of panels with pressure relief duct adjacent panel, right-hand Panel width [mm] SS-Stw SS-Stw Busbar system Single busbar Double busbar Mat. no. AGS AGS AGS AGS AGS AGS AGS AGS005-0 AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS005-0 AGS005- H O AGS005-4 O = Bus section coupler with upper busbar separation (SS) H = Bus section coupler with rear busbar separation (SS) AGS Edition 04/04 45

46 4 Assembly Panel width [mm] adjacent panel, righthand Panel width [mm] Busbar system LV cabinet Height [mm] Cover Pressure relief device Cover SS (to the right-hand adjacent panel) Cover LV cabinet SS-Stw SS-Stw Single busbar Double busbar AGS003-0 AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS003-0 AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS AGS Edition 04/04

47 4 Assembly Current transformer on the busbar for fan control Description and variants overview To control fans for disconnectors on the busbar, a toroidal-core current transformer is factory-mounted for each busbar; this transformer is positioned as follows: Single busbar: an der hinteren Phase (on the rear phase (normally designated as L3) Double busbar: Upper busbar (SS): on the rear phase (L3) Rear busbar (SS): on the upper phase (L) Fig. 54 The illustration shows a panel in double-busbar design. The busbar curent transformer is mounted to the single busbar panel in analogy to the upper busbar. Busbar current transformer SS Busbar current transformer SS 3 Silicone sleeve 4 Retaining plate for current transformer AGS Edition 04/04 47

48 4 Assembly Mounting current transformers to the busbar for fan control Fig. 55 Retaining clip Securing half-shells, rear 3 Current transformer 4 Securing half-shells, front 5 Silicone sleeve 6 Retaining plate for current transformer 7 Wiring of current transformer To ensure that the silicone sleeve can be pressed back sufficiently during busbar assembly, the current transformer must be disconnected and displaced previously. The current transformer as such must not be disassembled. Assembly workflow for busbar link (B link). Unscrew the retaining clip of the B link (Fig. 55, item ).. Remove the securing half-shells (item ). 3. Detach the current transformer from the retaining plate (item 6). 4. Push the current transformer into the position of the removed securing halfshells. 5. Assemble the busbar link acc. to Chapter 4.9 as of page After having completed the busbar link, push the current transformer back to its initial position and re-fasten it to the retaining plate. 48 AGS Edition 04/04

49 4 Assembly 7. Remount the two securing half-shells (Fig. 56, item ) to the silicone sleeve (3). Notice: Make sure that the securing half-shells are positioned correctly! The bead of the silicone sleeve (Fig. 56, item 5) must be in the groove of the securing half-shell (8). Comply with the tightening torque ±.5 Nm for screw-fastening the securing half-shells. 8. Push retaining clip (Fig. 56, item ) onto the two bolts (6). The sides of the retaining clip must butt against the retaining lugs of the securing half-shells. Subsequently, position the cup spring package (7) and secure it to the retaining clip using a self-locking nut M8 (6). The surfaces of the high-quality electrical joint must be compressed by the retaining clip ( +.5 Nm) 5 Fig. 56 Re-fastening the silicone sleeve to the panel side from which it was previously detached Retaining clip Securing half-shells, rear 3 Silicone sleeve 4 Securing half-shells, front 5 Bead 6 Threaded pin M8 with self-locking nut M8 7 Spring cup package 8 Groove of securing half-shell 9 Hex. socket-head screw M8 AGS Edition 04/04 49

50 4 Assembly 4.0 Reinforcement Required in case of internal arc strength acc. to IEC 67-00, qualification IAC AFL(R), internal arc 40 ka/ s Seismic design / vibration-resistance Fan attachment without Panel width adjacent panel, left-hand Panel width Assembly drawing with Single busbar Double busbar 600/ AGS AGS / AGS AGS / /800 AGS AGS / /000 AGS AGS AGS AGS AGS AGS AGS AGS SS-StW 600/800 AGS AGS SS-StW 900 AGS AGS /800 SS-StW AGS AGS SS-StW AGS AGS Fig. 57 Reinforcements 50 AGS Edition 04/04

51 4 Assembly 4. Screw-fastening the panel to the base frame Notice: The switchgear panels may not be screw-fastened to the base frame before they have all been installed and adjusted. Cut thread M8 in the base frame at the securing points provided to this effect (Fig. 58). To this effect, drill initial holes of Ø 6.8. Screw-fasten the panels x each on the front and rear. 3 4 Fig. 58 Fastening points in the base frame Additional securing points (optional) If the rear fastening points are not accessible, e. g. due to voltage transformers, fastening links (Fig. 59) can be mounted. Screw-fasten both fastening links to the panel's supporting structure. Cut a thread M8 in the base frame on the specified fastening points. To this effect, drill initial holes of Ø Fig. 59 Rear fastening links Rear base frame Fastening link 3 Screw connection Panel width [mm] Seismic design / vibration-resistance Mat. no without with AGS AGS AGS AGS The base frame must be designed in view of the seismic design. The panels are fastened to the base frame by means of screws M. AGS Edition 04/04 5

52 4 Assembly 4. Mounting the earth bus Notice: Observe the specific standards referring to earthing systems which apply in the country in question. The earth bars are screwfastened from panel to panel by means of connecting bars (Fig. 57, item 3).. Clean all contact areas of the connecting bar and the appropriate earth bar in the switchgear panels and coat them with lubricant (KL) (see Chapter 3.3, page 9).. Slip the connecting bar into the adjacent panel's supporting structure through the cutout in the panel. 3. Screw-fasten the connecting bar with the support brackets on both sides, to the earth bar in question and screw-fasten the support brackets to the panel. 4. Mount the connecting piece for switchgear earthing (Fig. 60, item 6). Connect the earth bus to the earthing system of the switchgear building. Connecting lines and screw accessories are not included in the scope of supplies. Connecting piece for switchgear earthing: AGS Panels with base plates: Observe Chapter 9., page 73. The earth bus should be connected to the earth conductor of the building's earth connection at least at the first and at each tenth panel of the switchgear. Panel width [mm] Panel width Adjacent panel [mm] Assembly drawing 600 (also for end panel right-hand) AGS / (also for end panel right-hand) AGS AGS (also for end panel right-hand) 600/800 AGS AGS /800 AGS AGS ( 3 mm) Fig. 60 Mounting the earth bar and connecting bar Earth bar Support brackets 3 Connecting bar 4 Screw-fastening the support brackets to the earth bar and the connecting bar 5 Screw-fastening the support brackets to the panel 6 External point of connection for the earth bus of the panel 5 AGS Edition 04/04

53 5 Busbar attachments 5. Safety provisions Warning! When performing assembly work on busbar attachments, the appropriate disconnecting device must be in earthed position (see Operating Manual). Warning! Please comply with the safety provisions in Chapter, page Assembly of surge arresters Notice: Remove grease and silicone from the contact surfaces and insulating areas on the inner cone-type sockets in the tank and on the surge arresters before assembly. Comply with the assembly instructions of the surge arrester.. Clean and grease contact surfaces on the surge arrester and inside the inner cone-type socket (see Chapter 3.3, page 9).. Clean the insulating areas of the surge arrester and in the inner cone-type socket carefully and apply a uniform film of special paste (see instructions for assembly of the surge arrester). 3. Slip surge arrester in correct axial position into the inner cone-type socket and screw-fasten it. 4. Screw-fasten the earthing cable of the surge arrester on the busbar tank. Fig. 6 Surge arrester AGS Edition 04/04 53

54 5 Busbar attachments 5.3 Assembly of voltage transformers Rated voltage U r [kv] Assembly drawing 4 AGS > 4 AGS Notice: Remove grease and silicone from the contact surfaces and insulating areas on the inner cone-type sockets in the tank and on the voltage transformers before assembly. Observe the instructions for assembly of the voltage transformers. The weight of the transformers must be taken into consideration! Support the transformer or secure it by attaching a crane hook to the transformer jack rings.. Clean and grease contact surfaces on the transformer connector and inside the inner cone-type socket (see Chapter 3.3, page 9).. Clean the insulating areas of the transformer connector and inside the inner cone-type socket carefully and apply a uniform film of special paste (see assembly instructions for voltage transformer). 3. Push voltage transformer into inner cone-type socket in correct axial direction and screw-fasten it (Fig. 6, item ); 4 x M8 self-locking nut. Fasten transformer additionally to angle bracket (4). x M8 self-locking screw 4. Connect the transformer secondary lines (plug-in contacts) (6). Comply with the marking! Fasten the protective hose (tighten nut by hand and fix cables by means of cable clamps, 7 and 8). 5. Mount cover plate (5) above the transformer cables. x M5 Torx screw Fig. 6 Assembly / disassembly of busbar voltage transformer Attachment with disconnecting device on busbar Connecting socket and flange fastening 3 Voltage transformer 4 Angle bracket 5 Cover plate for transformer wiring 6 Terminal connection of transformer cables 7 Fastening by means of cable clamp 8 Fastening the protective hose 54 AGS Edition 04/04

55 5 Busbar attachments The voltage transformers are inserted from above into the inner cone-type socket in the busbar tank (optional, Fig. 63). Assembly is effected as described above. Fig. 63 Voltage transformer attachment from above Rated voltage U r [kv] Assembly drawing 4 AGS > 4 AGS AGS Edition 04/04 55

56 6 Low-voltage cabinet 6. Assembly The low-voltage cabinets are either supplied as accessories or already mounted to the panel, depending on the transport requirements.. Remove transport protection covers from the interface between drive compartment and low-voltage cabinet. All the wiring with terminals for the low-voltage cabinet must be located in the drive area below the upper sheet metal edge.. Assign the low-voltage cabinet to the appropriate panel. Remove the packaging of the low-voltage cabinet and place the cabinet on the lifting table (Fig. 64). Raise lifting table until the low-voltage cabinet is above the drive area. 3. Carefully push the low-voltage cabinet onto the panel above the drive area, align it and screw-fasten it to the panel. To this effect, open the switch cabinet door using the double bit key. Lower screw fastening (): 4x M8 self-locking screw; rear screw fastening (): 4x M8 self-locking screw. 4. Screw-fasten the low-voltage cabinets laterally to one another (3). Screw-fasten by means of a M8 self-locking screw connection, depending on the height of the low-voltage cabinet 800/00: x/3x. Assembly drawing: AGS Top view 6 x/3x x 4x Fig. 64 Mounting the low-voltage cabinet Lower screw fastening (4x) Rear screw fastening (4x) 3 Lateral screw fastening (x/3x) 4 Lifting table 5 Low-voltage cabinet 6 Spacer 56 AGS Edition 04/04

57 6 Low-voltage cabinet 6. Connecting the control lines Connecting internal control lines of panel:. Slip the terminals of the drive box wiring onto the terminal strips in the low-voltage cabinet according to the marking on the connector (Fig. 65).. Close opening in the base of the low-voltage cabinet to the drive area by means of a cover plate (). 5 x M6 self-locking screw connection. 3 Fig. 65 Drive wiring to terminal strip in low-voltage cabinet Cover plate 3 Fastening the cover plate Connecting the ring circuits:. Route the secondary lines for the intra-panel wiring through the lateral rubber sleeves of the low-voltage cabinet (Fig. 66).. The ring circuits are designed with connectors and are connected to the appropriate terminal strips in the low-voltage cabinet according to the connector designations (or the circuit diagram) (). Fig. 66 Ring circuits between panels Connection of the ring circuits to terminal strips AGS Edition 04/04 57