MCset 17.5 kv. Installation instruction April Medium Voltage Distribution

Transcription

1 Medium Voltage Distribution MCset 17.5 kv Air insulated switchboard Withdrawable switchgear SF6 or vaccum technology Installation instruction April 2012

2

3 Contents General 2 Glossary 2 Earthing switch control symbols 2 Moving part control symbols 3 Recommendations 3 Standard tightening torques 4 List of bags and accessories 4 Packaging 5 Dimensions and weights 6 AD, CL-GL, VT cubicles 6 Cubicle fitted with IPX1/IPX2 roofs 9 DI2 cubicle 9 RHB, RHC cubicles 10 Transition enclosure MTP 11 Handling instructions 12 Land packaging 12 Ocean shipment packaging 12 Handling using a sling 12 Handling by rolling 13 Storage 13 Installation and operation recommendation 14 Floor finishing and cubicle fastening 15 Surface condition 15 Floor quality 15 Description of irons and accessories 15 Placing and adjusting on non earthquake resistant civil engineering works 15 Placing and adjusting on earthquake resistant civil engineering works Unpacking cubicles 19 Placing cubicles in a switchboard 19 Coupling of cubicles 22 Rack-in check 24 Removing the mobile part transport fixations 24 Installing the main earth connection 25 Installing the electric connections of the busbars and MV cables 27 Installing busbars 29 Installing busbars between MTP and the MOTORPACT cubicle 33 Placing MV cables on AD cubicle 36 Placing MV cables on RHC cubicle 42 MV cable screen earthing 46 LV cable routing and connection 47 Installing the tunnel 49 Installing the IPX1/IPX2 roofs or anti arc IPx1/IPx2 tunnels 52 Installing the tunnel end sheets 58 Installing the end sheets 60 Installing fans on versions 3600 A / 4000 A 63 Installation of a FU equipped with electromagnetic locking options 64 Earthing switch with electromagnetic locking 64 Rack-in prevention with electromagnetic locking 65 Prior to installing the front panels 65 Steps to be taken for tests and inspection 66 Power frequency dielectric test 66 Tests on site 67 Checking and setting up the internal arcing detector 67 Index EN.indd version 07 1

4 General Glossary UF Functionnal Unit (cubicle + mobile part + Sepam) Nota: this document is available for all the units ordered from April AD CL-GL TT RHB RHC MTP DI TT TC VPIS LV MV SMALT Incoming / feeder cubicle Withdrawable line coupling cubicle Measurement and busbar earthing cubicle Connection from the top by bar Connection from the top by cable Connection enclosure between an MCset cubicle and a MOTORPACT cubicle Fuse switch feeder cubicle Voltage transformer Current transformer or current sensor Voltage Presence Indicator System Low voltage Voltage class, including levels and 17.5 kv Earthing switch Mobile part LF Rollarc 400 EVOLIS CTV1 OED Extraction table SF6 withdrawable circuit breaker which is used in AD and CL cubicles SF6 breaking withdrawable contactor used in AD1 cubicle Vacuum circuit breaker which is used in AD and CL cubicles Vacuum breaking withdrawable contactor used in AD1 cubicle Tool to remove/insert the mobile part from the switchgear. The tool allows to place the mobile part on the floor. Tool to remove/insert the mobile part from the switchgear. The tool DOES NOT allow to place the mobile part on the floor. Earthing switch control symbols Rack-in prevention position. Locking possible. Rack-in or racked-out position. Operation position. Open earthing switch mechanical indicator. 2 version EN.indd

5 General Closed earthing switch mechanical indicator. Position can be locked using pad lock. Moving part control symbols Operation position. Racked-in position. Racked-out position. Insertion / extraction position. Recommendations Installation above the switchboard All type of equipment installation such as lamp or light are forbidden. Marking It is compulsory forbidden to walk on the parts with this label. It is compulsory forbidden to remove the parts with this label when the equipment is energised EN.indd version 07 3

6 General Standard tightening torques (Non greased screws and bolts) Screw Torque in Nm Ø 6 13 Ø 8 28 Ø Ø Ø Application methods: The elastic washers placed on the external sides of the connections and busbars ensure better distribution of stress induced by the screw torque. List of bags and accessories Switchboard packaging Package Switchboard end and fixing Switchboard Civil engineering Contenu - Switchboard end sheets - Fixation beams - Bag of screws and bolts - Top wireway and cover - 2 cubicle operation cranks - 10 mm2 wire - 1 earth fishplate and seal - Civil engineering guide - Installation manual - Operating manual - Cubicle fastening rails - Expansion screws - Bag of screws and bolts Package (Optional) Tests and inspection Spare parts Optional accessories Content - Manual earthing kit - Fuses - 1 busbar earthing truck - 1 phase balance testing device - 1 I and U test lead - 1 tunnel closure kit - 1 mobile part extraction tool (ERT or extraction table) 4 version EN.indd

7 General Packaging Content Cubicle packaging Separate packaging Screws and bolts for: - Busbar fastening (1) 2 - Busbar shims (1) 2 - Lock associated with the cubicle Lock unit Cubicle fastening on civil engineer. works 1 - Intercubicle fastening Coupling gaskets 2 1 Cable fastening (AD cubicle): - Flange supports 1 - Flanges 1 Cable floor: - Bottom plates 1 - Cable support sleeves 1 - Bag of screws and bolts Busbar 1250 A Cable connection brackets 1 - Busbar covers Zero frequence toroids Busbars 2500 A, 3150 A and more Cable compartment 1 - Fan compartment (FU 3600 A/ 4000 A) 1 (1) in general. (2) these parts can sometimes be dispatched in a separate package. The cable boxes installation drawings can be provided upon request: AD1 : AAV AD2 : AAV AD3 : BBV EN.indd version 07 5

8 Dimensions and weights AD, CL-GL, VT cubicles Cubicles with 1 CT per phase, internal arcing withstand and Gas Exhaust version (wall-mounted) or no internal arcing Boxes for 3600A / 4000A Dimensions AD1 AD2 AD3 CL1 CL2 CL3 TT1 TT2 (3600A) (3600A) (2500A) (3150A) (2500A) (3150A) (4000A) (4000A) Width (mm) L x x x x x Height** (mm) H Depth (mm) P Weight* (kg) x x x x x Weight (kg) of VT compartment * Maximum fully fitted weight. ** This dimension excludes cable flanges as well as any compartments placed under the cubicle. 6 version EN.indd

9 Dimensions and weights AD, CL-GL, VT cubicles Cubicles with 1 CT per phase, internal arcing withstand on 4 sides Boxes for 3600A / 4000A Dimensions AD1 AD2 AD3 CL1 CL2 CL3 TT1 TT2 (3600A) (3600A) (2500A) (3150A) (2500A) (3150A) (4000A) (4000A) Width (mm) L x x x x x Height** (mm) H Depth (mm) P Weight* (kg) x x x x x Weight (kg) of VT compartment * Maximum fully fitted weight. ** This dimension excludes cable flanges as well as any compartments placed under the cubicle EN.indd version 07 7

10 Dimensions and weights Cubicles with 2 CTs per phase, internal arcing withstand and Gas Exhaust version (wall-mounted) or no internal arcing Boxes for 3600A / 4000A Dimensions AD1 AD2 AD3 (2500A) (3150A) (3600A/4000A) Width (mm) L Height** (mm) H Depth (mm) P Weight* (kg) Weight (kg) of VT compartment * Maximum fully fitted weight. ** This dimension excludes cable flanges as well as any compartments placed under the cubicle. Cubicles with 2 CTs per phase, internal arcing withstand on 4 sides (installed in the middle of the room, no wall-mounting) Boxes for 3600A / 4000A Dimensions AD1 AD2 AD3 (2500A) (3150A) (3600A/4000A) Width (mm) L Height** (mm) H Depth (mm) P Weight* (kg) Weight (kg) of VT compartment * Maximum fully fitted weight. ** This dimension excludes cable flanges as well as any compartments placed under the cubicle. 8 version EN.indd

11 Dimensions and weights Cubicle fitted with IPX1/IPX2 roofs (e.g.: AD1 with internal arcing withstand on 4 sides) Dimensions AD1 IPX1 AD1 IPX2 Width (mm) L Height (mm) H Depth (mm) P tunnel DI2 cubicle Rear anti-arcing cubicle, internal arcing withstand on 3 or 4 sides (3 sides) (4 sides) Dimensions DI2 Internal arcing withstand on 3 sides and no internal arcing Internal arcing withstand on 4 sides Width (mm) L Height (mm) H Depth (mm) P Weight (kg) EN.indd version 07 9

12 Dimensions and weights RHB, RHC cubicles Cubicles with 1 CT per phase, internal arcing withstand on 4 sides (installation in the middle of the room, no wall-mounting) Boxes for 3600A / 4000A Dimensions RHB1 RHB2 RHB3 (2500A) RHB3 (3150A) RHB3 RHC1 RHC1 RHC2 RHC2 RHC3 (2500A) RHC3 RHC3 (3150A) 2 cables max. per phase 3 to 4 cables per phase 2 cables max. per phase 3 to 4 cables per phase 2 cables max. per phase 3 to 4 cables per phase 2 cables max. per phase (3600A) (4000A) Width (mm) L Height (mm) H Depth (mm) P (RHB3) 2275 (RHC3) 2000 Weight* (kg) Weight (kg) of VT compartment * Maximum fully fitted weight. Cubicles with 2 CTs per phase, internal arcing withstand on 4 sides (installation in the middle of the room, no wall-mounting) Boxes for 3600A / 4000A Dimensions RHB1 RHB2 RHB3 (2500A) RHB3 (3150A) RHB3 RHC1 RHC1 RHC2 RHC2 RHC3 (2500A) RHC3 RHC3 (3150A) 2 cables max. per phase 3 to 4 cables per phase 2 cables max. per phase 3 to 4 cables per phase 2 cables max. per phase 3 to 4 cables per phase 2 cables max. per phase (3600A) (4000A) Width (mm) L Height (mm) H Depth (mm) P (RHB3) 2275 (RHC3) 2000 Weight* (kg) Weight (kg) of VT compartment * Maximum fully fitted weight. 10 version EN.indd

13 Dimensions and weights Transition enclosure MTP (Motorpact transition enclosure) This enclosure is factory-mounted to the right or left of an MCset (depends on switchboard configuration). For more details see the MOTORPACT civil engineering guide: A. Dimensions MTP 1250 A 2500 A 3150 A Width (mm) L Height (mm) H Depth (mm) P Weight (kg) EN.indd version 07 11

14 Handling instructions Land packaging Functional Unit Ocean shipment packaging Functional unit Cubicles packed by threes Handling using a sling FU with circuit-breaker 12 version EN.indd

15 Handling instructions Handling by rolling Storage Store the devices in their original packaging, placed on dry ground or on a material insulating it from humidity. Long storage After long storage, clean insulating parts before operation EN.indd version 07 13

16 Installation and operation recommendation The switchgear s resistance to ageing in an MV substation depends on 3 main factors: 1/ The necessity of correct implementation of connections: New cold retractable or slip-on technology offers ease of installation that favours resistance over time. Their design allows them to used in polluted environments with harsh climatic conditions. 2/ Impact of the relative humidity factor: Installing a heating device is essential in climates with high relative humidity levels and major temperature differences. Ensure that draughts and / or thermal shocks are avoided in all cubicle compartments in order to avoid the creation of dew points (sources of partial discharges). The equipment must be installed in conformity with the relevant IEC standard. Outside of these normal usage conditions, we recommend contacting Schneider Electric to determine the operations to be carried out as well as their frequency according to the actual service conditions. 3/ Electrical room ventilation control: Grid size must be suited to the power dissipated in the substation. These grids must be placed exclusively in the vicinity of the transformer, in order to avoid air circulation on the LV switchboard. Operation and maintenance It is strongly advised to periodically carry out, (minimun every 2 years approximately), a few operation cycles on operating devices. Outside normal conditions of use, (between -5 C and 40 C, absence of dust, corrosive gas, etc.), it is recommended to examine, with our Schneider Electric services center, the steps to be taken, in order to ensure correct operation of the installation. After 6 to 12 month operations, we recommend you to check the busbars and MV cable connection torque. It should be done with a calibrated torque wrench, adjust to lower torque compare to values indicated in page 4. If no issues are detected and if the busbars and cable connections haven t been modified, it will not be necessary to do again this check. In case of disassembly, the elastic contact washers must be changed and replaced by new ones supplied by Schneider Electric. Our service centre is at your disposal at any time: b to diagnose the installation, b to offer, suitable maintenance operations, b to offer maintenance contracts, b to offer adaptations. An MCset 17.5 kv Maintenance and Services guide is available. It gives practical information on: b maintaining the equipment in good operation, b ensuring that the equipment is safe during all installation, repair and service operations. DEAI03EN/ART DEAI03FR/ART b Version 3600 A / 4000 A: We strongly recommend that you clean the ventilation grids A and B regularly (every 2 years): A: standard grids B: grids only on RHB version. b A fan monitoring system must be installed with the cubicle control and monitoring devices. Permanent operation of the following must be guaranteed: Cubicles types Fans quantity 3600 A 4000 A AD3, CL3 1 2 RHB version EN.indd

17 Floor finishing and cubicle fastening Surface condition Floor flatness is such that a 2 meter rule moved over all surfaces and in all directions, does not display a difference of more than 5 mm. Floor quality The floor must have a compression withstand u 33 MPa to roll the extraction tool on it without any damage. Description of irons and accessories Cubicle fastening Take this equipment from the civil engineering package of the switchboard packaging. Standard civil engineering: - 1 iron section A (length 2m) - 4 expansion pins B - 2 fastening shims C. Earthquake resistant civil engineering: - 2 iron sections A (length 2m) - 8 expansion pins B - 4 fastening shims C. Placing and adjusting on non earthquake resistant civil engineering works Preparation Drill a hole in the floor and irons. Placing the irons Place and fix the irons to the floor using the supplied expansion pins, screws and washers. Cut the last iron to the required length EN.indd version 07 15

18 Floor finishing and cubicle fastening Tightening irons Do not bend the iron on installation. Longitudinal adjustment: using a the water level and using shims before tightening the screws. Transversal adjustment: using a the spirit level and using shims before tightening the screws. For the correct installation of cubicles, it is advised to comply with a tolerance of ± 0.2 cm/m and a max. gap of ± 10 mm/10m on the length of the switchboard. 16 version EN.indd

19 Floor finishing and cubicle fastening Placing and adjusting on earthquake resistant civil engineering works Preparation Drill a hole in the floor and irons. This preparation remains an example of anchoring. For seismic applications, the anchorage must be designed and sized for the given installation taking into account the site loads, the floor material and dimensions and the anchorage type. Also, a slab space reserved at the FU is better than a slab space over all civil engineering. Placing the irons Place and fix the irons to the floor using the supplied expansion, screws and washers. Cut the last iron to the required length EN.indd version 07 17

20 Floor finishing and cubicle fastening Tightening irons Do not bend the iron on installation. Longitudinal adjustment: using a the water level and using shims before tightening the screws. The irons must be leveled very well because there is no level adjustement at the back in this case. Transversal adjustment: using a the spirit level and using shims before tightening the screws. For the correct installation of cubicles, it is advised to comply with a tolerance of ± 0.2 cm/m and a max. gap of ± 10 mm/10m on the length of the switchboard. 18 version EN.indd

21 Unpacking cubicles The preparation of cubicles must be carried out on the premises where they will be installed. Remove the 4 handling lugs (1 and 2). To avoid damaging the FU front panel components, leave the protection foam in place until the switchboard is in the operation phase. The circuit-breakers are delivered in cubicles in a racked-out position. Unpack the functional unit by removing the wooden columns (8 screws), then the plastic cover. Remove the cubicle packaging. Placing cubicles in a switchboard Assembling, adjusting and fastening Note: place switchboard cubicles according to front panel drawings and the single-line diagram. Start by placing the cubicle located in the middle of the switchboard (except in the case of an extension of the existing switchboard) then place the cubicles on either side of it, according to the Civil Engineering Guide indications. Depending on the type of civil engineering, take the following from the hardware bags. 1 bag of non earthquake resistant civil engineering screws and bolts n F0: Rear adjustment accessories: A: 4 x HM12 nuts B: 2 quick cage nuts C: 5 flat washers D: 4 x (HM12x70) screws E: 2 support irons. Front fastening accessories: F: 2 hook head bolts G: 2 fastening shims H: rubber anti-vibration plate. 1 bag of earthquake resistant civil engineering screws and bolts n F0: Cubicle «X» must not impede cubicle «X+1» and vis versa with respect to overall dimensions. Depending on the load, if a cubicle is found to be raised after the next one is installed, there is a risk of vibrations. Rear fastening accessories: H: 2 hook head bolts K: 2 fastening shims. Front fastening accessories: H: 2 hook head bolts J: 2 fastening shims EN.indd version 07 19

22 Placing above the maintenance space Do not remove any part of the cubicle. Note: placing can be carried out by lifting or rolling. Placement of the cubicle by rolling. Adjusting cubicles on standard civil engineering works The operations described here after, must only be carried out once the cubicle is positioned on civil engineering works. Position the support steel shim A and the rubber anti-vibration shim B at the rear of the cubicle from the maintenance space. Place the 2 quick cage nuts C at the rear of the cubicle, from underneath the cubicle. Cubicle «X» must not impede cubicle «X+1» and vis versa with respect to overall dimensions. Depending on the load, if a cubicle is found to be raised after the next one is installed, there is a risk of vibrations. Place the lock nut D on each screw E, place washer F, then screw the actuators in the quick cage nuts C. Lift the rear of the cubicle by screwing the 2 screws to level the cubicle. 20 version EN.indd

23 Fastening to the floor on standard civil engineering works Note: if the cubicle is provided with VT s, they must be removed, refer to the operating manual ( ), the chapter on Instructions for access to the interior of a cubicle. Pick from the hardware bag. Place the screws at the front of the cubicle and tighten them. Fastening to the floor one earthquake resistant civil engineering works Note: if the cubicle is provided with VT s, they must be removed, refer to the operating manual ( ), the chapter on Instructions for access to the interior of a cubicle. Pick from the two hardware bags. Place the screws at the rear of the cubicle and tighten them. Cubicle «X» must not impede cubicle «X+1» and vis versa with respect to overall dimensions. Depending on the load, if a cubicle is found to be raised after the next one is installed, there is a risk of vibrations. Pick from the two hardware bags. Place the screws at the front of the cubicle and tighten them EN.indd version 07 21

24 Coupling of cubicles Installing the inter cubicle gasket Note: for a first generation switchboard extension, consult the installation manual ( ) First generation switchboard extension. Place the self-adhesive inter cubicle gasket along the full height of the right side of the cubicle, except on the top wireway of the cubicle. This operation is not necessary for the cubicle at the right extremity of the switchboard. Install the second cubicle on the flloor as descrivbed before. Level the second cubicle if provided with leveling screws. Assemble the 2 cubicles together (11 fastening points). Access to the fastening points: - Refer to chapter on Instructions for access to the interior of a cubicle in the operating manual ( ). - See Removing the mobile part transportation devices. Assembling cubicles The lifting rings and its associated cage nuts must be removed. A: assembly of HM8 x 30 screws + M8 washers and HM8 nut. B: assembly of HM8 x 16 screws + M8 washers and M8 cage nuts. C: assembly of HM6 x 16 screws + M6 washers and HM6 nut + M6 washers. AFLR Internal Arc option: D: assembly of 6 screws H M8 + M8 washers + HM8 nuts + M8 washers. 22 version EN.indd

25 Assembling a MOTORPACT cubicle / MTP transition enclosure Left-hand assembly Right-hand assembly Implementation: 1: disassemble the transition enclosure E front and rear panel 2: open the top and bottom front doors of the Motorpact 3: remove the central front cover D of MOTORPACT by removing the 4 screws 4: remove the rear panels of the MOTORPACT compartments: see manual ( B), Installation guide 5: install screws A, nuts B and washers E as shown EN.indd version 07 23

26 Rack-in check Each time a cubicle is linked to another one, check that the mobile can be racked-in and locked in position properly. For the insertion and rack-in of the mobile part as well as to open the door, refer to the operating manual ( ) in the chapter on Operating instructions. Removing the mobile part transport fixations To extract the mobile part and to open the door, refer to operating manual in the chapter on Operating instructions. The operations described here after, must only be carried out once the cubicle has been placed and secured on the floor. Do not operate the mobile parts before removing the transport fixations. On LF circuit breaker 1: remove the 2 transport fixations (3 screws per fixation) 2: place the 4 screws and washers to fix the CB front cover. Tightening torque: 8.5 Nm. 3: remove the warning label: On a ROLLARC/ CTV1 contactor 1: remove the 2 transport fixations (3 screws per fixation) 2: place the 4 screws and washers to fix the CB front cover. Tightening torque: 8.5 Nm. 3: remove the warning label: On an EVOLIS circuit-breaker 1: remove the front panel screws 2: extract the circuit breaker (out of the cubicle) 3: remove the top fixation with access via the LV compartment 4: remove the fixation circuit breaker. Tightening torque: 8.5 Nm. 5: remove the warning label: 24 version EN.indd

27 On an EVOLIS HP circuit breaker 1: remove the 3 transport fixations (3 screws for the lower fixation and 3 screws for the upper fixation) 2: place the 6 scrwes and washers to fix the CB front cover. Tightening torque: 8.5 Nm. 3: remove the warning label: Installing the main earth connection From the switchboard to the building s earth Note: during the installation of the end sheets, punch the knock-outs from the sheets. For a switchboard with a MOTORPACT cubicle at the end, refer to MOTORPACT installation manual ref Connect the earth bar to the building s earth at the end of the switchboard, on the right and on the left, place the specific link with the oblong hole inside the cubicle. Tighten with a torque of 28 Nm EN.indd version 07 25

28 Inter-cubicles MCset - MCset and MCset - Transition Enclosure MTP Note: this connection can be done during the installation of each cubicle or at the end of switchboard assembly. The connection is located at the base of the cubicle Pick the self adhesive gasket from the hardware bag. Place this gasket around the link. Install the link by sliding it from cubicle 2 to cubicle 1. Place the bolt and tighten it. Use only screws HM8x Nm tightening torque. Stick the gasket onto the cubicle sheet as shown in A. Inter-cubicles Transition enclosure MTP - Motorpact The connection is located in the middle of the cubicle. The transition enclosure earth link is installed at the factory. When connecting it to the Motorpact, simply screw the transition enclosure earth link onto the earth bar inside the Motorpact. 26 version EN.indd

29 Installing the electric connections of the busbars and MV cables General information Assemblies with bolts for MV and LV internal equipment. Screws and bolts to be used: Class 8.8 according to standard NF E , i.e. an elastic limit, Re 630 MPa. Connection maintenance: During downtime, check the connection torque with a torque wrench. In the case of disassembly, change the elastic washers. Note: to carry out the following preliminary switchboard operations see chapter Instructions for access to the interior of a cubicle. Cubicle AD and CL without VT Preliminary operations to be carried out Extraction of the mobile part Placing busbars Placing MV cables (Optional) Close the earthing switch Remove the front panel protective cover plates Remove the separation plate from between the switchgear compartment (moving part) and the cable compartment. (Optional) Remove the busbar access sheet Remove the manhole sheet Cubicle AD and CL with fixed VT Preliminary operations to be carried out Extraction of the mobile part Placing busbars Placing MV cables Close the earthing switch (Optional) Remove the front panel protective cover plates Remove the fixed VTs Remove the separation plate from between the switchgear compartment (moving part) and the cable compartment. (Optional) Remove the busbar access sheet Remove the manhole sheet EN.indd version 07 27

30 Cubicle AD and CL with withdrawable VT Preliminary operations to be carried out Extraction of the mobile par Placing busbars Placing MV cables (Optional) Withdraw the VT fuses Close the earthing switch Remove the front panel protective cover plates Remove the withdrawable VTs Remove the separation plate from between the switchgear compartment (moving part) and the cable compartment. (Optional) Remove the busbar access sheet Remove the manhole sheet TT cubicle with fixed VTs Preliminary operations to be carried out Remove the front panel protective cover plates Placing busbars Placing MV cables Remove the fixed VTs Remove the separation plate from between the switchgear compartment (moving part) and the cable compartment. (Optional) Remove the busbar access sheet Remove the manhole sheet TT cubicle with withdrawable VT Preliminary operations to be carried out Withdraw VT fuses Placing busbars Placing MV cables Close the earthing switch Remove the front panel protective cover plates Remove withdrawable VTs Remove the separation plate from between the switchgear compartment (moving part) and the cable compartment. (Optional) Remove the busbar access sheet Remove the manhole sheet 28 version EN.indd

31 Installing busbars This connection is done during the installation of each cubicle. Access the busbars through the cubicle side. If this is not possible, access through the interior of the cubicle (refer to chapter on Instructions for access to the interior of a cubicle ). Retrieve; - The main busbar in the cubicle packaging - The busbar shims and hardware bag in the cubicle packaging. Place the busbar between the 2 previously assembled cubicles (refer to chapter on Principle of assembling busbars ). Tighten the fixation screws from the head side. 50 Nm tightening torque. Repeat these operations each time a switchboard cubicle is placed. Principle of assembling busbars 1250 A busbars Bag of 1250 A busbars: F0. A: top view of busbars B: 1 x (100 x 8) bar per phase C: nut D: conical contact washer E: flat washer F: M10 x 40 screws EN.indd version 07 29

32 2500 A busbars Bag of 2500 A busbars: F0. A: top view of busbarss B: 2 x (100 x 8) per phase C: nut D: conical contact washer E: flat washer F: M10 x 55 screws G: 3 holes shim H: 6 holes shim. Evolis HP 3150 A busbars Bag of 3150 A busbars: FA. A: top view of busbarss B: 4 riser busbars C: 3 x (100 x 8) per phase D: nut E: conical contact washer G: M10 x 85 screws. 30 version EN.indd

33 3150 A busbars Bag of 3150 A busbars: F0. A: top view of busbarss B: 3 x (100 x 8) per phase C: nut D: conical contact washer E: flat washer F: M10 x 70 screws G: 3 holes shim H: 6 holes shim. Evolis HP 4000 A busbars Bag of 4000 A busbars: FA. A: top view of busbarss B: 4 riser busbars C: 4 x (100 x 8) per phase D: nut E: conical contact washer F: flat washer G: M10 x 85 screws H: 3 holes shim EN.indd version 07 31

34 4000 A busbars Bag of 4000 A busbars: F0. A: top view of busbars B: 4 x (100 x 8) per phase C: nut D: conical contact washer E: flat washer F: M10 x 85 screws (special) G: 3 holes shim H: 6 holes shim. 32 version EN.indd

35 Cover assembly principle (depending on needs) Assembly the covers with clips Retrieve: from the cubicle packaging, the covers. Note: for mounting the covers with wire ties, see page 35. Place the half-covers on the main busbar connections. Close the covers on the bars. Installing busbars between MTP and the MOTORPACT cubicle 1250 A busbars MOTORPACT to the right A: nut B: contact washer C: flat washer D: M10 x 40 screws E: 1 x (76 x 9,5) per phase F: 2 holes shim G: M10 x 60 screws H: 1 hole shim. MOTORPACT to the left Note: for phase 3, the connection bar on the transition enclosure side is fastened to an insulator support EN.indd version 07 33

36 2500 A busbars A: nut B: contact washer C: flat washer D: M10 x 55 screws E: 2 x (76 x 9,5) per phase F: 1 hole shim G: M10 x 70 screws. MOTORPACT to the right MOTORPACT to the left Note: for phase 3, the connection bar on the transition enclosure side is fastened to an insulator support A busbars A: nut B: contact washer C: flat washer D: M10 x 70 screws E: 3 x (76 x 9,5) per phase F: 1 hole shim G: M10 x 80 screws. MOTORPACT to the right MOTORPACT to the left Note: for phase 3, the connection bar on the transition enclosure side is fastened to an insulator support. 34 version EN.indd

37 Optional insulated busbars MTP - Top views Assembling the covers: A: install a wire tie around the busbar, inside the cover (used to block the cover in position) B: close the cover with wire ties C: close the cover with the clips D: fit the entire cover assembly with clips. For cover assembly, refer to the chapter Cover mounting principle. Assembly of the covers with wire ties Position the half-covers on the busbar connection. Close the covers on the bars by tightening the wire ties through the notches EN.indd version 07 35

38 Placing MV cables on AD cubicle General information An explanation is given for all types of cables. Retrieve: from the cubicle packaging, floor plates, cable support and hardware bag. A: 3 single-pole cables B: 1 three-pole cable. To access the interior of a cubicle (refer to the operating manual chapter on Instructions for access to the interior of a cubicle ) Cut cable glands according to the number and diameter of cables. Install them around the cables. Refer to manufacturer instructions for cable termination. MV cable maintenance on AD cubicle Successively assemble, after having installed a row of cables: - Cable support - Flanges - Floor plates. Fix the flange support under the floor, after placing the cables vertical to their attachment bracket. Position the cable and its grommet correctly between the sheets (A). Fix and press the flange support against the cable under the cubicle floor. Only qualified personnel are to perform cable terminations and cable installation. Workers must be aware and understand the hazards involved in working with medium voltage circuits. Neglecting fundamental installation requirements may lead to personal injury, as well as damage to electrical equipment or other property. Block the cables with half-flanges. Make sure that the cable dielectric insulation does not contact any grounded metal parts or other phases. The grounded metallic support must be in contact with the external protective cable sheath. Reassemble bottom plates. Fill in the openings that have not been used with uncut cable glands. 36 version EN.indd

39 Cable termination height Type of cubicle Configuration H (mm) AD1 - AD2 630 A LV toroids set of 3 CTs sets of 3 CTs A LV toroids set of 3 CTs sets of 3 CTs 438 AD A 1 set of 3 CTs sets of 3 CTs A 1 set of 3 CTs sets of 3 CTs A 1 set of 3 CTs A/ 4000 A 1 set of 3 CTs 653 Surge arrester Removing In the case of an AD1 or AD2 cubicle fitted with a surge arrester, access to the cable compartment through the front requires removal of the surge arrester assembly. 1: remove the surge arrester connection 2: remove the insulator support. Installing Carry out the operations in the reverse order of removal. Tightening torque B: 50 Nm E: 20 Nm EN.indd version 07 37

40 Single-pole or three-pole cable without toroid TC AD1 and AD2, 1, 2 or 3 cables per phase Drill a hole in bracket A according to the cable head to be connected. Place and fix bracket A. An explanation is given for one phase. Do the same for the two other phases. Retrieve: in the cubicle packaging, the bracket and the hardware. Connect the cables. Apply standard tightening torque depending on the diameter of the bolt. The cable support is installed after the row of cable is installed (see chapter on MV cable maintenance on AD cubicle ). Dielectric tests must be carried out before connecting the surge arresters. B: 50 Nm tightening torque. Note: assembly sequence of the bolts for the bracket: 1: M10 x 30 screws 2: M10 washer 3: M10 nuts. For the connection of surge arresters, refer to chapter on Surge arresters. Place and fix brackets A, C and D. B: 50 Nm tightening torque. Connect the cables. Apply standard tightening torque depending on the diameter of the bolt. The cable support is installed after the row of cable is installed (see chapter on MV cable maintenance on AD cubicle ). Dielectric tests must be carried out before connecting the surge arresters. For the connection of surge arresters, refer to chapter on Surge arresters. AD3, 1 to 4 cables per phase Remove the bars. Drill a hole in the bars according to the cable heads to be connected. 38 version EN.indd

41 Put back the bars with new washers. Install the cable lugs inside the bars and place the screw head outside the bars. Apply standard tightening torque depending on the diameter of the bolt. A: screw B: washer C: nut D: lug. Dielectric tests must be carried out before connecting the surge arresters. For the connection of surge arresters, refer to chapter on Surge arresters. Tightening torque: B: 50 Nm E: 20 Nm. AD A/ 4000 A up to 8 cables per phase Remove the bars. Drill a hole in the bars according to the cable heads to be connected. Put back the bars with new washers. Install the cable lugs inside the bars and place the screw head outside the bars. Apply standard tightening torque depending on the diameter of the bolt. A: screw B: washer C: nut D: lug. Dielectric tests must be carried out before connecting the surge arresters. For the connection of surge arresters, refer to chapter on Surge arresters. Tightening torque: B: 50 Nm E: 20 Nm EN.indd version 07 39

42 Single-pole cable with toroid CT on cubicle AD1 and AD2 AD1 and AD2, 1 or 2 cables per phase The explanation is given for one phase. Do the same for the two other phases. Retrieve: in package of the cubicle packaging, links A and hardware. Drill a hole in link A according to the cable head to be connected. Place and fix link A. 50 Nm tightening torque. Note: assembly sequence of the bolts for the link: 1: M10 x 30 screws 2: M10 washers 3: M10 nuts. AD1 1 cable per phase Place phase 2 cable in the toroid. The explanation is given for one phase. Do the same for the two other phases. Note: assembly sequence of the bolts for the cable heads: 1: M10 x 30 screws 2: M10 washers 3: M10 nuts. Connect the cables on the link. Apply standard tightening torque depending on the diameter of the bolt. The cable support is installed after the row of cable is installed (see chapter on MV cable maintenance on AD cubicle ). AD2 1 cable per phase Place the cables through the toroids. 40 version EN.indd

43 Note: assembly sequence of the bolts for the cable heads: 1: M10 x 30 screws 2: M10 washer 3: M10 nuts. Connect the cables. Apply standard tightening torque depending on the diameter of the bolt. Dielectric tests must be carried out before connecting the surge arresters. After having installed a row of cables, then assemble the support flange (see chapter on MV cable maintenance on AD cubicle ). AD2 2 cables per phase AD3 2 cables per phase Place the cables through the toroids. Note: assembly sequence of the bolts for the cable heads: 1: M10 x 30 screws 2: M10 washer 3: M10 nuts. Connect the cables. Apply standard tightening torque depending on the diameter of the bolt. Dielectric tests must be carried out before connecting the surge arresters. After having installed a row of cables, then assemble the support flange (see chapter on MV cable maintenance on AD cubicle ) EN.indd version 07 41

44 Placing MV cables on RHC cubicle General information An explanation is given for all types of cables. Retrieve: from the cubicle packaging, floor plates, cable support and hardware bag. A: 3 single-pole cables B: 1 single-pole cable. To access the interior of a cubicle (refer to the operating manual chapter on Instructions for access to the interior of a cubicle ) Cut cable glands according to the number and diameter of cables. Install them through the cables. Refer to manufacturer instructions for cable termination. MV cable maintenance on RHC cubicle Successively assemble, after having installed a row of cables: - Cable support - Flanges - Cables glands plates. Fix the cable support to the roof after the cables are well placed vertically. See chapter on MV cable maintenance on AD cubicle ) for installation instructions. 42 version EN.indd

45 Single-pole or three-pole cable without toroid TC RHC A, RHC1 and RHC2 1, 2 or 3 cables per phase An explanation is given for one phase. Drill a hole in bracket A according to the cable head to be connected. Place and fix bracket A. Do the same for the two other phases. Retrieve: in the cubicle packaging, the bracket and the hardware bag. Place and fix brackets A and C. B: 50 Nm tightening torque. Connect the cables. Apply standard tightening torque depending on the diameter of the bolt. The cable support is installed after the row of cable is installed (see chapter on MV cable maintenance on RHC cubicle ). Note: assembly sequence of the bolts for the bracket fixation: 1: M10 x 30 screws 2: M10 washer 3: M10 nuts. Dielectric tests must be carried out before connecting the surge arresters. For the connection of surge arresters, refer to chapter on Surge arresters. RHC A and RHC2 4 cables per phase An explanation is given for one phase. Drill a hole in bracket A according to the cable head to be connected. Place and fix bracket A. Do the same for the two other phases. Retrieve: in the cubicle packaging, the bracket and the hardware bag. Place and fix brackets A. B: 50 Nm tightening torque. Connect the cables. Apply standard tightening torque depending on the diameter of the bolt. The cable support is installed after the row of cable is installed (see chapter on MV cable maintenance on RHC cubicle ). Note: assembly sequence of the bolts for the bracket fixation: 1: M10 x 30 screws 2: M10 washer 3: M10 nuts. Dielectric tests must be carried out before connecting the surge arresters. For the connection of surge arresters, refer to chapter on Surge arresters EN.indd version 07 43

46 RHC A 4 cables per phase Remove the bars. Drill a hole in the bars according to the cable heads to be connected. Put back the bars with new washers. Install the cable lugs inside the bars and place the screw heads outside the bars Apply standard tightening torque depending on the diameter of the bolt. A: screw B: washer C: nut D: lug. RHC A up to 8 cables per phase Remove the bars. Drill a hole in the bars according to the cable heads to be connected. Put back the bars with new washers. Install the cable lugs inside the bars and place the screw head outside the bars. Apply standard tightening torque depending on the diameter of the bolt. A: screw B: washer C: nut D: lug. 44 version EN.indd

47 Single-pole cable with toroid TC RHC1 1or 2 cables per phase An explanation is given for one phase. Do the same for the two other phases. Drill a hole in bracket A according to the cable head to be connected. Place and fix bracket A. Retrieve: in the cubicle packaging, the bracket and the screws and bolts. Place and fix brackets A. B: 50 Nm tightening torque. Connect the cables. Install the cable lugs inside the bars and place the screw head outside the bars. Note: assembly sequence of the bolts for the bracket fixation: 1: M10 x 30 screws 2: M10 washer 3: M10 nuts. The cable support is installed after the row of cable is installed.(see chapter on MV cable maintenance on RHC cubicle ). There are three ways of installing the toroids (according to the width of the cubicles): 1: 1 single-pole cable 2: 1 single-pole cable 3: 2 single-pole cables. Dielectric tests must be carried out before connecting the surge arresters. For the connection of surge arresters, refer to chapter on Surge arresters EN.indd version 07 45

48 MV cable screen earthing For single-pole or two-pole toroid CT The braid connection is done inside the cubicle. In all cases, the insulated MV cable screen braids must go through the toroids before connection to the switchboard main earth bar. For zero frequence toroid Example of cable installation: A: 1 three-pole cable 1 cable per phase 3 earthing braids B: 2 three-pole cables 2 cables per phase 6 earthing braids C: 3 single-pole cables 1 cable per phase 3 earthing braids D: 6 single-pole cables 2 cables per phase 6 earthing braids. In all cases, the MV cable screen braids must be insulated and go through the zero frequence toroid before connection to the switchboard s earth. The braid earth connection is done on the switchboard earth bars inside the maintenance space. Example: one cable per phase, 3 braids to be connected. Two cables per phase, 6 braids to be connected. 46 version EN.indd

49 LV cable routing and connection Incoming cables at the end of the switchboard Remove the roof on each cubicle (6 screws). Remove the cubicle cable troughs. Place the power supply lead cable inside the trough. Connect the wiring from the power supply lead cable for each cubicle through the cable glands. Place back the trough. Connect the wiring to the terminal blocks. Reassemble the roofing sheets (6 screws per sheet). Incoming cables through the top, each cubicle Remove the small cable sheet on the roof (4 screws) and the roof (6 screws). Cut the cable sheet taccording to the cables size to go through it. Install the cable glands on the sheet and the cables EN.indd version 07 47

50 Install the cable sheet on the roof (4 screws). Connect the wires to the terminal blocks. Install the roof (6 screws). Incoming cables from the floor, each cubicle Remove the cable trough. Cut according to the number and the diameter of the cables. (maximum 5 diameters 20 mm) at the base of the cable trough. Remove the roof and eventually the top cable sheet (6 and 4 screws). Pull the wiring and cable up to the cubicle top through the troughs. Install the cable trough. Connect the wires on the terminal blocks. Reassemble the roof (6 and 4 screws per sheet). 48 version EN.indd

51 Installing the tunnel Wall-mounted anti arc tunnel A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. 1/ First fix the angle bracket (2) on the wall using two screws. 2/ Fix the sheet (1) onto the cubicle using four screws (B) for MCset 1 and 6 screws (B) for MCset 2 and MCset 3. 3/ Fix the roof (3) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 4/ Fix the roof (3) on the angle bracket (2) using two screws (C). 5/ Fix the tunnels of each cubicle together. Non wall mounted anti arc tunnel A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. 1/ First fix the sheets (1) onto the cubicle using four screws (B) for MCset 1 and 6 screws (B) for MCset 2 and MCset 3. 2/ Fix the roof (2) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 3/ Fix the tunnels of each cubicle together EN.indd version 07 49

52 Wall-mounted anti arc tunnel for versions 3600 A / 4000 A Wall-mounted anti arc tunnel A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. 1/ First fix the angle bracket (2) on the wall using two screws. 2/ Fix the sheet (1) onto the ventilation box using four screws (B) for MCset 1 and 6 screws (B) for MCset 2 and MCset 3. 3/ Fix the roof (3) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 4/ Fix the roof (3) on the angle bracket (2) using two screws (C). 5/ Fix the tunnels of each cubicle together. Non wall mounted anti arc tunnel for versions 3600 A / 4000 A A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. 1/ First fix the sheet (1) onto the ventilation box using four screws (B) for MCset 1 and 6 screws (B) for MCset 2 and MCset 3. 2/ Fix the roof (2) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 3/ Fix the tunnels of each cubicle together. 50 version EN.indd

53 Installing a tunnel on a MTP transition enclosure The sheets are fixed by HM6 screws + M6 washers and HM6 nuts (A): 1/ Mount the support sheets (1) first. 2/ Mount the side panel (2). 3/ Fasten together the support sheets of each cubicle. 4/ Mount the roof (3). 5/ Mount the tunnel closing sheets in the front and rear (4). 6/ Fasten together the tunnel roofs of each cubicle EN.indd version 07 51

54 Installing the IPX1/IPX2 roofs or anti arc IPx1/IPx2 tunnels Wall-mounted IPX1 roof A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. D: HM6 screws + M6 sealing washers and HM6 nuts. 1/ First fix the angle bracket (2) on the wall using two screws. 2/ Fix the sheet (1) onto the cubicle using four screws (B) for MCset 1 and 6 screws (B) for MCset 2 and MCset 3. 3/ Fix the roof (3) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 4/ Fix the roof (3) on the angle bracket (2) using two screws (C). 5/ Fix the tunnels of each cubicle together using 5 screws according to the vue (D). Non wall-mounted cubicle IPX1 roof A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. D: HM6 screws + M6 sealing washers and HM6 nuts. 1/ First fix the sheets (1) onto the cubicle using four screws (B) for MCset 1 and six screws (B) for MCset 2 and MCset 3 for each sheet. 2/ Fix the roof (2) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 3/ Fix the tunnels of each cubicle together using 5 screws according to the vue (D). 52 version EN.indd

55 Wall-mounted IPX1 roof for versions 3600 A / 4000 A A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. D: HM6 screws + M6 sealing washers and HM6 nuts. 1/ First fix the angle bracket (2) on the wall using two screws. 2/ Fix the sheet (1) onto the ventilation box using four screws (B) for MCset 1 and 6 screws (B) for MCset 2 and MCset 3. 3/ Fix the roof (3) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 4/ Fix the roof (3) on the angle bracket (2) using two screws (C). 5/ Fix the tunnel of each cubicle together using 5 screws according to the vue (D). Non wall-mounted IPX1 roof for versions 3600 A / 4000 A A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts D: HM6 screws + M6 sealing washers and HM6 nuts. 1/ First fix the sheets (1) onto the ventilation box using four screws (B) for MCset 1 and six screws (B) for MCset 2 and MCset 3 for each sheet. 2/ Fix the roof (2) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 3/ Fix the tunnel of each cubicle together using 5 screws according to the vue (D) EN.indd version 07 53

56 IPX1 roof on a MTP transition enclosure The sheets are fixed with HM6 screws + M6 sealing washers and HM6 nuts (A): 1/ Mount the support sheets (1) first. 2/ Mount the side panel (2). 3/ Fasten the support sheets of each cubicle together. 4/ Mount the roof (3). 5/ Mount the tunnel closing sheets to the front and rear (4). 6/ Fasten the tunnel roof of each cubicle together. Wall-mounted IPX2 roof A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts D: HM6 screws + M6 sealing washers and HM6 nuts. 1/ First fix the angle bracket (2) on the wall using two screws. 2/ Fitxthe sheet (1) onto the cubicle using four screws (B) for MCset 1 and 6 screws (B) for MCset 2 and MCset 3. 3/ Fix the feet (4) onto the cubicle using two screws (B). 4/ Fix the roof (3) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 5/ Fix the roof (3) on the feet (4) using two screws (C) and on the angle bracket (2) using two screws (C). 6/ Fix the tunnel of each cubicle together using 5 screws according to the vue (D). 54 version EN.indd

57 Non wall-mounted IPX2 roof A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. D: HM6 screws + M6 sealing washers and HM6 nuts. 1/ First fix the sheets (1) onto the cubicle using four screws (B) for MCset 1 and six screws (B) for MCset 2 and MCset 3 for each sheet. 2/ Fix the feet (4) onto the cubicle using two screws (B). 3/ Fix the roof (2) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 4/ Fix the roof (2) on the feet (4) using two screws (C). 5/ Fix the tunnel of each cubicle together using 5 screws according to the vue (D). Wall-mounted IPX2 roof for versions 3600 A / 4000 A A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. D: HM6 screws + M6 sealing washers and HM6 nuts. 1/ First fix the angle bracket (2) on the wall using two screws. 2/ Fix the sheet (1) onto the ventilation box using four screws (B) for MCset 1 and 6 screws (B) for MCset 2 and MCset 3. 3/ Fix the feet (4) onto the cubicle using two screws (B). 4/ Fix the roof (3) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 5/ Fix the roof (3) on the feet (4) using two screws (C) and on the angle bracket (2) using two screws (C). 6/ Fix the tunnel of each cubicle together using 5 screws according to the vue (D) EN.indd version 07 55

58 Non wall-mounted IPX2 roof for versions 3600 A / 4000 A A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. D: HM6 screws + M6 sealing washers and HM6 nuts. 1/ First fix the sheets (1) onto the ventilation box using four screws (B) for MCset 1 and six screws (B) for MCset 2 and MCset 3 for each sheet. 2/ Fix the feet (3) onto the cubicle using two screws (B). 3/ Fix the roof (2) onto the sheet (1) using two screws (C) for MCset 1 and three screws (C) for MCset 2 and MCset 3. 4/ Fix the roof (2) on the feet (4) using two screws (C). 5/ Fix the tunnel of each cubicle together using 5 screws according to the vue (D). IPX2 roof on a MTP transition enclosure The sheets are fixed by HM6 screws + M6 sealing washers and HM6 nuts (A): 1/ Mount the support sheets (1) first and the feet (5). 2/ Mount the side panel (2). 3/ Fasten the support sheet of each cubicle together. 4/ Mount the roof (3). 5/ Mount the tunnel closing sheets at the front and rear (4). 6/ Fasten the tunnel roof of each cubicle together. 56 version EN.indd

59 Tunnel sheets or IPX1/IPX2 roofs for RHB cubicle 1/ Mount first the support sheets (1) at the rear first, then in the middle and the front feet (front feet are only used for IPx2 roofs) (3c). 2/ Mount the sheets (2) on the RHB duct part. 3/ Fasten the support sheet of each cubicle together. 4/ Mount the tunnel roof (3a) or the IPX1 roof (3b) or the IPX2 roof (3c). 5/ Fasten the tunnel roofs of each cubicle together. * Ventilation boxes for version 3600 A / 4000 A. Tunnel sheets or IPX1/IPX2 roofs for RHC cubicle 1/ Mount first the support sheets (1) at the rear first, then in the middle, and the front feet (front feet are only used for IPx2 roofs) (3c) 2/ Mount the access sheets (4). 3/ Fasten the support sheet of each cubilce together. 4/ Mount the tunnel roof (3a) or the IPX1 roof (3b) or the IPX2 roof (3c). 5/ Fasten the tunnel roofs of each cubicle together EN.indd version 07 57

60 Installing the tunnel end sheets For anti-arc tunnels or IPx1 roofs A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. 1/ First fix the sheet (1) onto the cubicle with the screws (C). 2/ Fix the sheet (1) onto the tunnel with the screws (C). For anti arc tunnel for version 3600 A/ 4000 A A: front of the cubicle B: HM6 screws C: HM6 screws + M6 washers and HM6 nuts. 1/ First fixthe sheet (1) onto the cubicle with the screws (C) 2/ Fix the sheet (1) onto the tunnel with the screws (C). 58 version EN.indd

61 For IPx2 roofs A: front of the cubicle B: rear of the cubicle The sheets are fixed with HM6 screws + M6 washers and HM6 nuts. 1/ Fix the sheet (1) onto the cubicle and onto the tunnel 2/ Fix the sheet (2) onto the tunnel feet at the front. 3/ Fix the sheet (3) onto the cubicle, the tunnel and the sheet (1). 4/ Fix the sheet (4) onto the sheet (1) EN.indd version 07 59

62 Installing the end sheets On the left end cubicle, place the cage nuts on the sides. For internal arc switchboards, stick the self adhesive gasket (A) along the front of the switchgear for both end sheets Note: operations are identical for the right or left ends of the switchboard. Make sure that the busbar end cover is assembled before mounting the switchboard s end covers. On the left and right end cubicles, place and screw (M8 screw) the 4 end sheet support beams. Assembling cover panels of cubicle ends Punch the knock-out at the panel bottom to let the earth bus to go through it (1 per panel). 60 version EN.indd

63 Note: operations are identical for the right or left ends of the switchboard. On the right end panel, place the cage nuts at the front line. Assemble the end cover panels 1 and 2 (right and left end of the switchboard). A: HM8 screws+ M8 washers B: HM6 screws+ M6 washers D: assembly of HM8 x 30 screws + M8 washers and HM8 nut + M8 washers EN.indd version 07 61

64 Wall-mounted switchboard D: assembly of HM8 x 30 screws + M8 washers and HM8 nut + M8 washers. Internal arc switchboard. D: assembly of HM8 x 30 screws + M8 washers + HM8 nut + M8 washers. E: assembly of HM8 x 6 screws + M8 washers + HM8 nuts + M8 washers. Place the top wireway closing sheet 4. Place the two screws to fix the top wireway closing sheet. 62 version EN.indd

65 Pop the 2 rivets to fix the operating handle support at the front of the end sheets. Store the operating handle in the front end panel. Installing fans on versions 3600 A / 4000 A Top view Fasten the box using 10 screws A. Connect the wiring in top wireway B of the cubicle. Maintenance procedures for ventilations and insulating parts are covered in the MCset 17.5 kv Maintenance and Services Guide DEAI03F/ART RHB EN.indd version 07 63

66 Installation of a FU equipped with electromagnetic locking options Earthing switch with electromagnetic locking FU delivered with the earthing switch closed To rack-in and rack-out the circuit breaker, the earthing switch must be operated. At the installation of the FU, the electromagnetic locking is not yet enegised, it must be manually released in order to operate the earthing switch. Initial status: - The earthing switch is closed, - Selector 4 is in the locked closed position. Opening the earthing switch without auxiliary supply Disassemble the VPIS without disconnecting the wiring. Insert a screwdriver via the box hole. Push back and hold in place the electromagnet (A) using the screwdriver, then pull towards you and turn the selector to the right in the operation position. Open the earthing switch, inserting the crank in reference 5 until the mechanical indicator light changes status. Position selector 4 in the locked open position. Put back the VPIS. 64 version EN.indd

67 Installation of a FU equipped with electromagnetic locking options Rack-in prevention with electromagnetic locking Initial status: - The circuit-breaker is in the racked-out position. - The earthing switch is closed. - The front panel is disassembled to access cable connections. To access the cable connection compartment, circuit-breaker rack-in must be prevented. At the installation of the FU, the electromagnetic lock is not energised, it must be manually released in order to place the front panel when the operations are complete. The locking system is accessible as per the arrow in the drawing opposite. Prior to installing the front panels If lever (A) is positioned as per figure 1, locking is active and prevents installation of the front panel. To desactivate the locking, insert a tool (screwdriver) into the hole placed under the box support and push the electromagnet rod (B). Push the lever (A) to position it as per figure 2. The system is released and the front panel can be placed back. Figure 1 Figure EN.indd version 07 65

68 Steps to be taken for tests and inspection Power frequency dielectric test This test must be performed by trained & authorized people. This test can be carried out in one single operation. All circuit-breakers must be racked-in, closed, with FU doors open. All the VT s and surge arresters must be disconnected during this test. More over, one of the FU feeder must have its lower panel open to connect the test cable. This procedure requires to defeat the interlocks. It is essential to follow the sequences here after. The insulation level of the switchgear can be tested on site. The test voltage shall be 80 % of the rated shortduration power-frequency withstand voltage of the switchgear as specified in clause of IEC Defeating Interlocks On FUs not connected to the generator Place the circuit-breaker in the test position, with the door open. Rack-in the circuit breaker (refer to the operating manual). Remove the shim. Raise and block the door lock rod using a 55 mm U shim. Press the pushbutton I to close the circuit-breaker Surge arrester connection This operation must only be carried out after dielectric tests, and before the connection of medium voltage cables to the FU. Place and fix the connection of each surge arrester. Refer to the chapter on MV cable connection. 66 version EN.indd

69 Tests on site Checking and setting up the internal arcing detector(1) This operation has to be made during assembly of the tunnels (option) or during operation on the roof of the cubicle. The internal arcing detector is located on the roof of the cubicle. To be operational, it must be in spring loaded position. (1) The internal arcing detector is mounted according to the internal arcing withstand characteristics of the cubicle. Setting up the internal arcing detector: - Push the metal rod (1) toward the back of the cubicle, - Hook the rod (1) on the support (2). 1: metal rod, 2: support EN.indd version 07 67