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U N I S EC

I N S TA L L AT I O N M A N UA L

26

Raised panel position
1) The raised position can be used when cable

raceways cannot be created.

2) This does not obstruct the activities of the

substation.

Surface flatness of the base
1) Pass a 2-meter level over the surface of the base

in all directions to check for flatness and
evenness. The maximum deflection is 5 mm.

2) To prevent the base from being damaged by

equipment on wheels (e.g.: circuit-breakers), the
surface must possess
33 MPa strength or more.

How to fasten the cubicles
The cubicles must be fastened together with the
supplied bolts and screws.

3.5.6 Connecting the main busbars
General warnings and precautions

DANGER

A warning sign is placed on the top plate to
indicate the presence of high voltage under the
roof

CAUTION

It is recommended to mount the busbars starting
from the top of the units

NOTE

Tighten to the correct torque. The torques are
indicated in the “Tightening torques for steel
screws and nuts/bolts” table

NOTE

It is important for the screws to be of the correct
length

The busbar connections are made through the top
openings
a) Clean and scrape the busbar connections.
b) Clean the insulation of the busbar sections with a

soft, dry cloth and check for any insulation
damage.

c) Install the busbars unit by unit. Insert the screws,

busbars and other required components in the
correct positions and tighten them to the correct
torques according to the instructions given
below.

Instructions for different types of main busbar
connections
The main busbars overlap each other at their
contact points. This means that every other busbar
is mounted on top of the other, as shown in Figure
50. Busbar spacers are used in the end units to keep
the busbars in a completely horizontal position.

NOTE

Metallic terminal-covers are installed in the
terminal units for 24 kV

NOTE

Make sure the busbar spacers are positioned as
shown in the figures below

Busbar
spacer

1

Odd

numbered

unit

2

Even

numbered

unit

3

Odd

numbered

unit

4

Even

numbered

unit

5

Odd

numbered

unit

Busbar

Busbar

spacer

Figure 50. Main busbar connections

—

3. Assembly of the switchgear on site

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Содержание UniSec SDS

Страница 1: ...ies 12 3 Assembly of the switchgear on site 13 3 1 General warnings and cautions 13 3 2 Preparations 13 3 3 Dimensional foundation drawings 13 3 4 Foundations 23 3 5 Installation procedure for units 23 3 6 Gas vent ducts 34 3 7 Coupling to panels with withdrawable circuit breaker and switch disconnector GSec 38 4 Cable connections 39 4 1 Installing the cables 39 4 2 Control cables 45 4 3 Earthing ...

Страница 2: ... in the manual by the following symbol After this symbol there are four different indications which explain the possible type of injuries or damage which may be caused when the instructions including recommended safety precautions are not followed DANGER identifies the most serious and immediate hazards which can result in serious personal injury or death WARNING identifies hazards or unsafe pract...

Страница 3: ...iness and simplicity of installation as well environmental sustainability were the driving forces in developing this switchgear UniSec is structured by placing standardized units side by side in a coordinated way Construction and testing are carried out in the factory Installation manual This manual provides information on installation of UniSec units It contains details about product dimensions a...

Страница 4: ...drawable circuit breaker unit with switch disconnector SBS Circuit breaker unit with switch disconnector disconnection SBS W Withdrawable circuit breaker unit with switch disconnector disconnection SBM Disconnection unit with measurements with circuit breaker and double disconnector SBR Inverted circuit breaker unit HBC Unit with integrated circuit breaker and switch disconnector RLC RRC Right and...

Страница 5: ...the different LSC2B units For panels with removable circuit breakers Figure 5 Side view IAC A FLR 21 kA with duct Figure 3 Side view IAC A FL 12 5 kA with filters Figure 6 Side view for panels with withdrawable circuit breakers IAC A FLR 25 kA 1 sec up to 17 5 kV and IAC A FLR 16 kA 1s at 24 kV with filters Figure 4 Side view IAC A FLR 16 kA with filters WBC WBS DRS for WBS ...

Страница 6: ...9 Side view for panels with withdrawable circuit breaker IAC A FL 12 5 kA 1s solution installed completely against a wall Figure 7 Side view for panels with withdrawable circuit breakers IAC A FLR 25 kA 1 sec up to 17 5 kV and IAC A FLR 21 kA 1s at 24 kV with duct Figure 10 Side view of IAC AFLR 21kA x 1s Downward Figure 8 Side view for panels with withdrawable circuit breaker IAC A FL 12 5 kA 1s ...

Страница 7: ...5 2 500 175 2 185 2 750 200 2 215 2 SDM 750 230 2 250 2 SDD 750 270 2 290 2 UMP 750 200 2 SFC 375 155 3 160 3 500 175 3 185 3 750 200 3 215 3 SFS 375 165 3 175 3 500 180 3 190 3 SBC 750 355 2 355 2 SBC W 750 355 2 355 2 SBS 750 355 2 375 2 SBS W 750 355 2 375 2 SBM 750 390 2 410 2 SBR 750 335 2 HBC 500 250 2 275 2 SFV 500 175 2 185 2 DRC 375 120 2 130 2 500 135 2 145 2 DRS 500 WBC 600 600 1 750 75...

Страница 8: ...l condition NOTE Any transport damage must be reported to the carrier forwarder immediately If installation of the switchgear is to be made immediately after delivery the transport packing must be removed except for the plastic vapour corrosion inhibitor film covering the units which must only be removed at the final switchgear installation site Unpacking The UniSec units are fixed to the pallet u...

Страница 9: ...ity into account Tilting or overturning must be avoided If necessary single units can be carried horizontally for example because of a low doorway In such cases the unit must be supported over a wide area 2 3 2 Instructions Transport units The transport units consist of individual units or small groups of units The lifting hooks are suitable for all UniSec units 375 mm 500 mm 600 mm and 750 mm Han...

Страница 10: ...e hook If a crane is available lifting can be done by using the lifting hooks which are delivered separately The lifting procedure including how to install the lifting hooks is illustrated on the right NOTE It is also possible to move units on a flat floor to the installation site by using rolling tubes The rolling tube dimensions should be about 1 m in length and 20 25 mm in diameter 2 3 3 Liftin...

Страница 11: ...r protection against humidity during temporary storage and transport must not be removed until installation is completed CAUTION The duration of the protective effect of the packing is limited to a few months when stored indoors in a dry place ABB should be consulted in the case of longer storage periods or if the storage conditions differ from those indicated 2 4 2 Optimum storage conditions Defi...

Страница 12: ...ocumented on the respective shipping document Immediately notified to the relevant carrier or forwarding agent in accordance with the relative liability regulations Type of packing Special instructions depending on the type of packing are given below 1 Units with basic packing or without packing 1 Use a dry well ventilated place with climatic conditions in accordance with Table 3 2 Store the units...

Страница 13: ...vice is permitted to authorized personnel only who has specific expertise on electrical safety according to CEI 11 27 or IEC EN 50110 3 2 Preparations Before starting To commence installation on site the switchgear room must be absolutely suitable i e provided with lighting and electricity fitted with a padlock ventilation facilities and must also be dry All the necessary preparations such as wall...

Страница 14: ...icated Room layout IAC A FL 12 5 kA 1sec against a wall IAC A F 16 kA Figure 25 Distances from the walls of the installation room with compartment for the exhaust gas on the rear solution IAC A FL 12 5 kA 1s against the wall Figure 26 Distance from walls of installation room with gas exhausting compartment at rear solution IAC A F 16 kA 1s ATTENTION IAC A FL version No access to Rear side of the S...

Страница 15: ... installed on each individual unit Figure 28 Minimum distances from the walls of the installation room solution IAC A FLR 16 kA 1s with filters installed on each unit ATTENTION IAC A FL version Do not access the rear part of the switchgear while this is under service conditions Compliance with the installation distances is mandatory ATTENTION IAC A FLR version No access limitations to the Swg Room...

Страница 16: ...istance can be up to 130 mm 2 Only for 12 kV LSC2A units height 2000 mm and width 750 mm except for units SBC W SBS W SDD UMP and SBR Figure 29 Minimum distances from the walls of the installation room solution IAC A FLR 21 kA 1s with filters installed on each unit Figure 30 Minimum distances from the walls of the installation room solution IAC A FLR 21 25 2 kA 1s with gas exhaust ducts ATTENTION ...

Страница 17: ...awable circuit breaker LSC2B IAC A FLR 25 kA filters 1300 mm at least for panels with circuit breaker 1 For special conditions defined by ABB the minimum distance can be up to 130 mm 2 Only for 12 kV LSC2A units height 2000 mm and width 750 mm except for units SBC W SBS W SDD UMP and SBR Only for 12 kV LSC2A units height 2000 mm and width 750 mm except for units SBC W SBS W SDD UMP and SBR Figure ...

Страница 18: ...pecial conditions defined by ABB the inimum distance can be up to 130 mm 2 In the case of special conditions contact ABB for the minimum distances required Figure 33 Minimum distances from the walls of the installation room solution IAC A FLR 25 kA 1s 12 17 5 and 21 kA 1s 24 kV with gas exhaust ducts Figure 34 Minimum distances from walls of installation room solution IAC A FL 12 5 kA 1s with filt...

Страница 19: ...ing figures show the locations and sizes of the cable passage holes under the different units These holes must be made before installation of the switchgear The figures also show the switchgear fixing points There is one fixing point in each corner of the unit 4 per unit Units without cable entry have dimensions and fixing points according to the width of the unit 10 mm anchoring bolts can be used...

Страница 20: ...5 1200 600 400 100 43 5 3 01 5 81 10 1 25 Ø12 5 43 5 773 230 8 00 25 1300 550 100 750 43 5 UNISEC INSTALL ATION MANUAL 20 DRC W units 190 mm width for RLC RRC units 750 mm wide units DRS for WBC WBS BME With 600 mm for units with withdrawable circuit breakers up to 17 5 kV WBC WBS and BME without cable outlet With 750 mm for units with withdrawable circuit breakers up to 24 kV WBC WBS without cabl...

Страница 21: ... SBR Basic 400 390 UMP With CT 550 270 HBC Basic 608 275 With CT 460 325 With sensor Kevcr 583 450 3 275 RLC RRC H1700 Basic 1520 265 With SBR 1495 310 With HBC 1435 280 RLC RRC H2000 Basic 1645 305 WBC BME Baseplate or with CT 600 150 2 600 165 2 1 With optional cable terminal 2 Distance between side wall of panel and first connection cable 3 Central phase L2 RLC unit 3 3 3 Medium voltage cable l...

Страница 22: ... di media tensione Details 600 mm width 750 mm width A mm B mm C mm A mm B mm C mm WBC BME Baseplate or with CT 600 150 1 332 600 165 1 367 1 Distance between side wall of panel and first connection cable LSC2B unit front LSC2B unit side 3 Assembly of the switchgear on site ...

Страница 23: ...culations must be made by technically qualified personnel 3 5 Installation procedure for units 3 5 1 Assembly of the first two switchgear units WARNING Before positioning the different switchgear units check the floor levelling with particular attention to the longitudinal flatness maximum levelness 2 1000 NOTE If horizontal gas vent ducts are provided mount the joint brackets unit by unit right f...

Страница 24: ...Screw the joining plate and the unit plates together with 6 Torx M6x12 screws so that they are fully tightened Insert a bolt M8x20 round headed with square neck with a nut M8 hexagonal nut with flange figure 45 to tighten the units and the joining plate 3 Assembly of the switchgear on site Figure 42 Figure 44 Two units side by side Figure 43 Figure 45 Screws for the top joining plate Figure 46 Pla...

Страница 25: ...floor If necessary the floor must be prepared with raceways for routing the power cables The preparation tasks are the same for all types of panels 400 630 A To reduce the depth of the raceways for 400 630 A panels to 350 mm or even do away with them in certain cases the cubicles can be installed on a raised base made of reinforced concrete which must be prepared at the same time as the constructi...

Страница 26: ...uts bolts table NOTE It is important for the screws to be of the correct length The busbar connections are made through the top openings a Clean and scrape the busbar connections b Clean the insulation of the busbar sections with a soft dry cloth and check for any insulation damage c Install the busbars unit by unit Insert the screws busbars and other required components in the correct positions a...

Страница 27: ... hex socket screw 6 Washer 7 M10 nut 8 Washer 9 Insulating terminal cover 10 Silver washer D10 11 Busbar 12 Conical spring washers D10 13 Hexagonal nut M10 14 Busbar spacer D10 All unit types list of components used Part Name 15 Compensation washer D10 16 Round headed socket screw M10x30 17 Round headed socket screw M12x40 18 Round headed socket screw M12x60 19 Nut M12 20 Conical spring washer D12...

Страница 28: ...2 4 3 3 1 1 1 3 3 5 5 5 3 1 3 3 5 UNISEC INSTALL ATION MANUAL 28 3 Assembly of the switchgear on site Units with 12 17 5 kV 630 800 A switch disconnector Units with 24 kV 630 A switch disconnector Units with 12 17 5 kV 1250 A switch disconnector ...

Страница 29: ...UTIONS 29 DRS DRC 12 17 5 kV 1250 A end or isolating units DRS DRC end or isolating units For DRC and DRS units the busbars are not installed directly on the top of the switch disconnector or bushing Therefore to tighten the screws properly the nuts must be installed under the busbars DRS DRC 12 17 5 kV 630 800 A end or isolating units DRS DRC 24 kV 630 A end or isolating units ...

Страница 30: ... 12 16 13 11 UNISEC INSTALL ATION MANUAL 30 For the SBR unit up to 24 kV 630 A Units with insulators Units with current transformers and Combisensors Busbar exit on the left Busbar exit on the right Busbar exit on the left Busbar exit on the right 3 Assembly of the switchgear on site ...

Страница 31: ... 11 11 11 20 20 20 20 19 19 19 19 DISTRIBUTION SOLUTIONS 31 WBC WBS 630 A middle unit WBC WBS 630 A end unit WBC WBS 1250 A middle unit WBC WBS 1250 A end unit 630 A middle unit 1250 A middle unit 630 A end unit 1250 A end unit ...

Страница 32: ... Panel for coupling unit with WBC WBS to unit with 12 17 5 kV 630 A switch disconnector Panel for coupling unit with WBC WBS to unit with 12 17 5 kV 800 A switch disconnector 12 17 5 kV 630 A middle unit 12 17 5 kV 630 A end unit 12 17 5 kV 800 A middle unit 12 17 5 kV 800 A end unit 3 Assembly of the switchgear on site ...

Страница 33: ...cessario avvitare le piastre solo per la versione IAC 21 kA 1s Accertarsi che la doppia piastra del tetto sia posizionata come mostra la figura 71 Accertarsi che i bordi piegati della doppia piastra scompaiano completamente al di sotto della piastra 4 Installare il profilo di giunzione del tetto con sei viti viti Torx M6x12 Connection between SBS and DRC units Connection to main busbars SBS to DRS...

Страница 34: ...tion of the gas vent ducts The gas vent ducts are usually already installed a Install the vertical part of the gas vent duct b Insert screws in the vertical duct 6 Torx M6x20 screws and in the bottom plate 5 Torx M6x12 screws and tighten them as shown in Figure 74 3 Assembly of the switchgear on site Figure 73 Installation of the vertical gas vent duct Figure 75 Additional screws for the bottom pl...

Страница 35: ...t is used in the end unit to direct any gas due to arc faults out of the switchgear room The switchboard is always provided with an additional duct 1 metre long On request an additional duct with a maximum length of 2 metres can be supplied In the case of 750 mm units a Install the large bottom plate b Install the plate in the centre of the gas vent ducts Example of lateral gas outlet Figure 77 In...

Страница 36: ...N MANUAL 36 Figure 81 Side view Figure 82 View from front Figure 84 Side view Figure 85 View from above Figure 83 Side view Example of raised lateral gas outlet Example of rear outlet 3 Assembly of the switchgear on site ...

Страница 37: ...DISTRIBUTION SOLUTIONS 37 Figure 86 Side view Figure 87 View from above Example of raised rear outlet 3 6 3 Gas exhaust filters 16 kA Version BE Rear closing Rear closing ...

Страница 38: ...dapter panel is 2000 mm The adapter panel keeps all the characteristics of a standard panel and can therefore be used as an incoming outgoing unit 3 7 Coupling to panels with withdrawable circuit breaker and switch disconnector GSec The available adapter panels are Unit Width mm Weight kg SDC 500 220 SFC 500 225 SFV 500 225 SBC 1 750 380 DRC 500 145 Estimated weight considering the base unit with ...

Страница 39: ...he fairleads to the cable diameter and fit them onto the cable 4 1 Installing the cables NOTE The position of the medium voltage cables are positioned L1 L2 and L3 front to back 4 1 1 Installing the cables Parts 1 Floor sheet 2 Fairleads 3 Cable guide spline 4 Cable clamping screw NOTE The clamping screws are optional 1 Cable cover 2 Cable seal 3 Cable support 4 Hexagonal nuts with flange 9ADA289 ...

Страница 40: ...ording to the manufacturer s instructions d Connect the cables to the cable terminals as shown in Figure 94 In a switch fuse combination the maximum terminal width is 30 mm 3 Cable clamps a Remove 2 nuts per phase from the left hand side of the cable clamps b Remove the loose sides of the cable clamps c Insert the floor plates fairleads cable clamps and cable guide splines together with 8 nuts on ...

Страница 41: ... and remove the RLC side cover 3 Unscrew lift and remove the two metal sheets NOTE Tighten to the correct torque See the tightening torques table at the end of the manual 4 1 2 Installing the cables in the RLC unit RLC unit cable compartment Open the RLC cable compartment Figure 98 Cables ready Figure 100 RLC front cover Figure 101 RLC cover Figure 99 Cable compartment ...

Страница 42: ...ble diameter and fix the cables in the centre of the RLC unit to the locking part 4 Unscrew lift and remove the cable protection sheet of the RLC unit 4 Cable connections Figure 103 RLC internal cover Figure 105 Cable glands on the bottom of the RLC unit Figure 104 RLC unit cable locking parts Figure 102 RLC transversal part ...

Страница 43: ...of VT d If supplied remove surge arrester E by unscrewing screws E1 E2 and E3 2 Connect the cables to the circuit busbar 3 Connect the cable earthing screen beside the plastic locking devices Close the RLC unit cable compartment Carry out the same operations in reverse order to open the RLC unit cable compartment Figure 108 RLC unit earthing cable terminals Figure 107 RLC unit cable terminal conne...

Страница 44: ...nents Figure 112 Figure 113 Cable connections Panels Width Maximum quantity of cables per phase Max cross section of cables mm2 LSC2A SDC 375 1 400 500 1 630 2 300 750 1 400 2 300 SFC 375 1 95 500 1 95 750 1 95 SBC SBC W 750 1 630 2 300 HBC 500 1 630 2 300 DRC 375 1 400 500 1 630 2 300 UMP 750 1 400 2 300 RLC RRC 190 1 400 LSC2B WBC BME 600 1 630 2 400 4 300 750 2 400 4 240 2 two 300 mm2 cables 12...

Страница 45: ...he adjacent unit on the left b Move the busbar from the unit to the right when there is another unit on the right Add the screw on the right and screw up all the screws with the correct torque Figure 114 Control cable entries Figure 115 Busbar moved towards the adjacent unit on the left Figure 116 Busbar moved from the adjacent unit to the right 4 2 Control cables The internal cables between units...

Страница 46: ...rom the units Correctly replace all coverings etc removed during the installation and connection operations Any remaining openings in the switchgear housing must be closed if they are no longer needed Check that the isolating contacts and interlocking mechanisms operate correctly and if necessary grease them again with Isoflex Topas NCA 52 Insert any withdrawable circuit breaker parts and connect ...

Страница 47: ...M8 12 M10 35 M12 50 M16 110 Socket head screws and round headed Torx Max tightening torque Nm Type Steel class 8 8 Steel class 10 9 M4 2 2 M5 4 4 M6 8 8 M8 12 12 M10 30 M12 60 Hexagonal head bolts with flange Max tightening torque Nm Type Steel class 90 M5 9 M6 16 M8 34 M10 58 M12 97 M16 215 Cheese head Torx Fastite screw Max tightening torque Nm Type Steel class 8 8 M6 20 The values in the tables...

Страница 48: ...rs Joint type Tightening torque Nm M5 M6 M8 M10 M12 M16 min 8 nominal 9 max 10 Cable connection nut Joint type Tightening torque Nm M5 M6 M8 M10 M12 M16 min 18 35 65 170 nominal 20 40 70 180 max 22 45 75 190 Busbar connections Joint type Tightening torque Nm M5 M6 M8 M10 M12 M16 min 18 35 65 170 nominal 20 40 70 180 max 22 45 75 190 A Tightening torques for steel screws and nuts bolts ...

Страница 49: ...nted on the mandolin CT Joint type Tightening torque Nm M5 M6 M8 M10 M12 M16 min nominal 35 max Bolts mounted on the post insulator Joint type Tightening torque Nm M5 M6 M8 M10 M12 M16 min 25 nominal 8 20 30 max 31 Bolts mounted on the connection and switching busbar Joint type Tightening torque Nm M5 M6 M8 M10 M12 M16 min 56 nominal 35 60 max 70 ...

Страница 50: ...olts for mounting CT Joint type Tightening torque Nm M5 M6 M8 M10 M12 M16 min nominal 40 max GSec and busbar Joint type Tightening torque Nm M5 M6 M8 M10 M12 M16 min nominal 35 max A Tightening torques for steel screws and nuts bolts ...

Страница 51: ...DISTRIBUTION SOLUTIONS 51 B Tools required for installation Torx wrench TX30 Torx wrench Allen wrenches 5 mm 6 mm 8 mm Socket wrenches 10 mm 15 mm 17 mm 19 mm Ring spanner 13 mm ...

Страница 52: ...r abb com contactcenters More service information abb com service Copyright 2018 ABB All rights reserved The data and illustrations are not binding We reserve the right to make changes in the course of technical development of the product 1VFM200004 Rev M en Unisec Installation manual 2018 04 UniSec mt ...

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