Complete functional system for all types of low voltage ...

Complete functional system for all types of low voltage distribution switchboardsPrisma TTTechnical Guide version 2

Make the most of your energySM

2 Prisma TT | Technical Guide v2 2012

Technical Guide

3Prisma TT | Technical Guide v2 2012

Prisma TT

The functional system

The Prisma TT functional system can be used for all types of low-voltage distribution switchboards and motor control centers up to 3200A, in buildings and industrial environments.

Design of the Switchboard is very simple.

A metal structureThe switchboard is made up of a single framework combined side-by-side, on which complete selection of cover panels and doors can be mounted.

A distribution systemHorizontal busbars or vertical busbars positioned in a lateral compartment or at the rear of the cubicle are used to distribute electricity throughout the switchboard.

Complete functional unitsEach device is part of a functional unit comprising:

• A dedicated mounting plate for device installation

• A Partial door

• Busbar connections

Each functional unit contributes to a function in the switchboard.

The functional units are modular and are arranged rationally, one on top of another, within the enclosure.

The system includes everything required for functional unit mounting, supply and on-site connection.

The components of the Prisma TT system and those of the functional units in particular have been designed and tested taking into account device characteristics. This design approach ensures a high degree of reliability in system operation and optimum safety of personnel.


ModularityPrisma TT switchboards are designed on the 50mm moduleprinciple. Fixing holes are made available at 25mm distances as needed.

The shaded zone consists of 37 x 50mm modules. This is the zone where the switchgear and busbars are installed:

• 4 modules for the horizontal busbar,

• 33 modules for the switchgear

Noted: Vertical busbars for distribution columns are to be mounted in the 200mm frames.

• All sheet metal parts are made sheet steel which are pre-treated for corrosion protection and finally applied with Epoxy Powder paint of 60 to 80 microns thickness.

• Doors & covers - 1.5mm thick

• Frames, mounting plates, gland plates - 2mm thick

• Internal separations - 1.5mm thick

FrameworkThe frame work is made of rigid, formed sections usedas uprights. The basic Prisma TT frameworks are available inthree widths:

• 400mm (dedicated cubicle for NS630b-NS1600)

• 500mm (dedicated cubicle for NT06-NT16)

• 650mm & 800mm (dedicated cubicle for NW08-NW32)

• 800mm (made up of 600+200mm, where 200mm is assigned for vertical busbars)

The following extension frameworks are available as cablecompartments for front access.

• 300mm

• 400mm

Specifications: Modularity and framework

Standards Type Tested Assemblies IEC 61439-1 & 2 Rated insulation voltage, Ui Up to 1000VRated operating voltage, Ue Up to 1000VRated frequency 50/60 HzRated current, In Up to 3200AShort-time withstand current, Icw 85kA rms / 1sPeak withstand current, Ipk 187 kADegree of protection IP54 as per IEC 60529Mechanical impact strength IK 10Basic Frames 400, 500, 650, 800mm wideAdd on ducts 300, 400mm wideHeight 2000mm standardDepth 600, 800, 1000mmPaint Shade RAL 7032

Specification


Framework combinationsSide-by-sideTo maintain IP54 degree of protection, a gasket must be installed between the combined cubicles.

Switchboard depth :

• 600 mm

• 800 mm

• 1000 mm

Note:

* Consider 1000 mm depth for Form-4 Rear Access Panels with Draw-out/Plug-in MCCB Feeders.

* Consider 800mm depth for Form-4 Rear Access Panels with Fixed MCCB Feeders.

Right Angle KitA standard IP30 metal duct is available that is used to create andprotect the connection of horizontal busbars between two cubiclesinstalled at right angles.(Cat. No. 08713L)

Lifting RingsA set of four Lifting rings per column are available as an option. (Cat. No. 08700L).

• Can be installed and removed without removing the roof.

• Even if they are left attached, the switchboard conserves its IP rating.

Framework combinations, right angle kit and lifting rings

Positions of the lifting rings for two combined cubicles containing devices. In this case, a lifting beam must be used.

Side-by-side

Lifting Rings

IP30 right-angle kit


Side Panels

Compartment definition

Designation Catalogue No.

Set of two side panels D=400mm 08750L

D=600mm 08760L

Side panels for "L" combinations

Left or right combinations of two cubicles with different depts (800+400 or 1000+600).


Set of two side panels for "L" combinations D=400mm 08756L

These panels simply replace the standard side panels

Switchgear compartment (devices)

Cable connection compartment

Busbar compartment

Circuit breaker

600 600

600

600

400

400

200 200

with rear access with front access

Side panels and compartment definition


Cubicle dimensionsFrameworks depth: 800mm

Frameworks depth: 1000mm

Floor fixing details

Cubicle dimensionsDD381829

DD381830

A B300 262.5400 362.5600 562.5650 612.5800 762.5


DD381850 DD381851

DD381852 DD381853

Busbars

BusbarPrisma TT provides electrical switchboards with a complete and consistent system capable of supplying electrical energy where it is needed:

• Modern, high-performance type tested busbar system.

• Perfectly sized, prefabricated connections

• Distribution blocks that bend perfectly with the devices.

All components are put through rigorous tests with Schneider Electric devices to ensure that the resulting switchboards are dependable and comply with International standard IEC 61439- 1 & 2.

Busbar calculationThe bars are secured by insulated supports attached to the framework.The following tables indicate:

• The number and size of the bars to be used, depending on the permissible current level in the busbars.

• The number of busbar supports for each type of framework, depending on:

> The size of the busbars

> The rated short-time withstand current Icw

Current (A)

Amb Temp 40ºC Amb Temp 50ºC No. of bars per phase

Busbar size (cross section)

in mm

Short circuit rating Icw rms

IP 54 IP 54

700 630 1b 60 x 5 40kA 1 sec

870 800 1b 80 x 5 50kA 1 sec

1180 1070 2b 60 x 5 50kA 1 sec

1510 1370 2b 80 x 5 50kA 1 sec

1010 920 1b 50 x 10 65kA 1 sec

1160 1050 1b 60 x 10 75kA 1 sec

1500 1370 1b 80 x 10 75kA 1 sec

1740 1600 2b 50 x 10 75kA 1 sec

1870 1700 2b 60 x 10 85kA 1 sec

2330 2150 2b 80 x 10 85kA 1 sec

2720 2500 2b 100 x 10 85kA 1 sec

3300 3200 2b 150 x 10 85kA 1 sec

Number and size of Copper busbar

Note: 85kA 1 sec is equivalent to 50kA 3 secs


Horizontal & Vertical Busbars

Distance between supports in Horizontal and vertical busbarThe busbar supports ensure mechanical resistance of the main circuit and in particular when a short-circuit occurs. The maximum distance between the supports depends on the rated short-time withstand current, on the number and cross-section of the bars.

Install busbar supports as indicated in the tables below:

Horizontal Busbars• Number of supports - 5mm busbars

Framework width (mm) Size of bars (mm) No. of supports

Icw ( kA rms/ 1s)

≤ 15 ≤ 25 ≤ 30 ≤ 40 ≤ 50

W = 600/800 mm

1 bar, 60 x 5

1 bar, 80 x 5

2 bars, 60 x 5 2 3

2 bars, 80 x 5

W = 300 mm All sizes 1 2

W = 400/500 mm All sizes 1 2

Number of bars / phase

No. of supports Icw ( kA rms/ 1s)

≤ 15 ≤ 20 ≤ 25 ≤ 30 ≤ 40 ≤ 50

1 bar, 20 x 5mm 7(1)

1 bar, 32 x 5mm 5 7 9(1)

1 bar, 60 x 5mm

1 bar, 80 x 5mm 7

2 bars, 60 x 5mm 3 5

2 bars, 80 x 5mm

Framework width (mm) Size of bars (mm) No. of supports

Icw ( kA rms/ 1s)

≤ 25 ≤ 30 ≤ 40 ≤ 50 ≤ 60 ≤ 65 ≤ 75 ≤ 85

W = 600/800 mm

1 bar, 50 x 10

1 bar, 60 x 104

1 bar, 80 x 10

2 bars, 50 x 10 2 3

2 bars, 60 x 10

2 bars, 80 x 10

2 bars, 100 x 10

W = 300 mm All sizes 1 2

W = 400/500 mm All sizes 1 2

Size of bars (mm) No. of supports Icw ( kA rms/ 1s)

≤ 25 ≤ 30 ≤ 40 ≤ 50 ≤ 60 ≤ 65 ≤ 75 ≤ 85

1 bar, 50 x 10mm

1 bar, 60 x 10mm 7 9

1 bar, 80 x 10mm 5

2 bars, 50 x 10mm 3

2 bars, 60 x 10mm

2 bars, 80 x 10mm


Set of 20 special screws 04645

• Horizontal busbar special screws for Fish Plates

* Order 1 no of 04645 for every shipping section

• Number of supports - 10mm busbars

Vertical Busbars• Number of supports - 5mm busbars • Number of supports - 10mm busbars


Switchgear installation

Switchgear Installation• The following table illustrates the number of modules required to install

each type of functional unit depending on the mounting position and form of separation.

• Stacking of a number of Functional units in a single column shall also be based on the number of cables to be terminated per feeder.

Note:Form - 4B Configurations• Each FU / compartment is provided with a dedicated mounting plate, partial door, Form-4B cable termination.• Consider 800mm depth for Form-4 rear access panels in case of all fixed outgoing MCCB's.• Consider 1000 mm depth for Form-4 rear access panels in case of draw-out/plug-in outgoing MCCB's

Form - 2B Configurations• Each FU or a combination of FU’s are provided with a mounting plate and a dedicated front plate.• A full height plain door is then provided outside to ensure IP54 degree of protection.

Fixed MCC’s• Fixed motor starters - DOL, YD, Reversing, VFD, Soft starters, etc., can be offered in Prisma TT• Please consult Schneider Electric for modular sizing.

Width mm Depth mm

Enclosure dimension

NS100 to NS250

MC

CB

sA

CB

s

NS400 to NS630

FormNo of CBs

Breaker TypeNo of Poles

Mounting PositionNo of

modulesType Breaker Frame size

Fixed / Plug-in 3P Form-2 4 Ver 6m (9m for NS250)

600 / 800 / 1000

Withdrawable 3P/4P Form-4 1 Ver 6m 600 / 800 / 1000

Fixed / Plug-in 3P Form-2 1 Hor 3m 600 / 800 / 1000

Fixed / Plug-in 3P Form-2 1 Hor 4m 600 / 800 / 1000

Fixed / Plug-in 3P/4P Form-4 1 Hor 4m 600 / 600+200

600 / 600+200

600 / 600+200

600 / 600+200

600 / 600+200

600 / 600+200

600 / 600+200

600 / 800 / 1000

Fixed / Plug-in 3P/4P Form-4 1 Hor 6m 600 / 800 / 1000

Withdrawable 3P/4P Form-4 1 Ver 8m 600 / 800 / 1000

NS630b to NS1600Fixed /

Withdrawable3P/4P

Form-2 / Form-4

1 Ver 12m 400 / 600+200 600 / 800 / 1000

NT06 to NT16Fixed /

Withdrawable3P

Form-2 / Form-4

1 Ver 11m 500 / 600+200 600 / 800 / 1000

500 / 600+200 600 / 800 / 1000NT06 to NT16Fixed /

Withdrawable4P

Form-2 / Form-4

1 Ver 11m

NW08 to NW32Fixed /

Withdrawable3P

Form-2 / Form-4

1 Ver 11m 650 / 800+200

800 / 800+200

600 / 800 / 1000

NW08 to NW32Fixed /

Withdrawable4P

Form-2 / Form-4

1 Ver 11m 600 / 800 / 1000


Standard configurationsReference codes

Standard ConfigurationsConfiguration of columns and definition of references

Reference Codes• Reference for Switchboard PTTL = Prisma TT

Ready to wire cubicle

• Column dimensions 1st digit = width of cable chamber 2nd digit = width of column 3rd digit = width of busbar chamber

• Depth of column D06 = 600mm D08 = 800mm D10 = 1000mm

• Form of separation F2 = Form - 2 F4 = Form - 4

• Dedicated Columns NS = Single MCCB CC = Cable Chamber Cap = Capacitor Bank MP = VSD/Soft Starter BC = Bus Coupler NT = NT ACB

Note:

• Prisma TT Switchboards are supplied by Schneider Electric to the panel builder i.e., switchboard is assembled as per General Arrangement / Layout drawings including sheet metal parts and busbar supports.

• All doors will be plain without cut-outs.

• Panel builders scope of work includes assembly of switchgear devices ( circuit breakers, motor starters, etc.), assembly of busbar, wiring, Routine test, quality control and inspection.

• In addition to the standard column references, the panel builder needs to include optional accessories such as side panels, HBB Fish plates, Hor-ver BB joint screws common to a complete switchboard.

• The main advantage of this arrangement will be Schneider Electric’s validation of the drawings prepared by the panel builder for each project in order to ensure that it complies with the type tested design and Schneider Electric’s recommendations.

PTTL 062 D10 F2 XX


Standard ConfigurationsIn order to comply with Type Tested design configurations, the type of Prisma TT columns supplied as Ready to wire columns have been standardized as follows:

1. Incoming Columns

Incoming circuit breakers such as Masterpact-NW fed from Utilities are to be installed in a dedicated column with provisions for mounting Analogue meters, KWH Meter, Masterpact-NW ACB, Incoming cables, etc.

Cubicle dimensions

Width : 800mm

Depth : Options 600mm, 800mm, 1000mm

The configuration of incoming columns is the same both for Form-2 and Form-4 types.

Standard configurationsIncoming Column

Order reference code for the above column:

PTTL080D08F4


2. Dedicated 500mm wide column – Inc / Out

A dedicated column of 500mm width is available to install one circuit breaker of the following types:

• NT 06 to NT 16 – 3P/4P, Fixed or Drawout type

Cubicle dimensions:

Width :500mm


The configuration of 600mm wide Inc / Out columns is the same both for Form-2 and Form-4 types.

Standard configurationsDedicated 500mm wide column – Inc / Out


PTTL050D06F4NT


3. Outgoing Columns

Outgoing circuit breakers can be installed in compartments in both Forms-2 and Form-4 configurations.

Number of Modules required per feeder type can determined from the "Switchgear Installation" table on page 10.

3a. Form-4b configuration.

Individual partial doors, mounting plates and form boxes will be provided as shown in the typical layout drawing below:

Cubicle dimensions

Width : (600 + 200)mm


Note: Consider 800mm depth for Form-4 rear access panel in case of all fixed outgoing MCCB's.

3b. Form-2b configuration.

Full height plain door, individual front plates, mounting plates will be provided.

Cubicle dimensions

Width : (600 + 200)mm


Standard configurationsOutgoing Columns

Note:The last compartment door is of a specific size. It is available in the following module sizes:• 5 module extended (can be used to install MCCB's up to NS250 - Horizontal mounting)• 3 module extended (can be used to install MCCB's up to NS250, 1P/2P)


PTTL062D08F4


4. Outgoing Columns

One vertical busbar can be shared between two outgoing columns.

4a. Form-4b configuration with shared vertical busbar.

Individual partial doors, mounting plates and form boxes will be provided as shown in the typical layout drawing below:

Cubicle dimensions

Width : (600 + 200)mm + 600mm


Note: Consider 800mm depth for Form-4 rear access panel in case of all fixed outgoing MCCB's.

4b. Form-2b configuration.

Full height plain door, individual front plates, mounting plates will be provided.

Cubicle dimensions

Width : (600 + 200)mm + 600mm


Standard configurationsOutgoing Columns with shared vertical busbar

Note:The last compartment door is of a specific size. It is available in the following module sizes:• 5 module extended (can be used to install MCCB's up to NS250 - Horizontal mounting)• 3 module extended (can be used to install MCCB's up to NS250, 1P/2P)

Order reference code for the above columns:

PTTL062D08F4 + PTTL060D08F4


5. Bus Coupler Columns

Bus Coupler columns will be supplied in a (800+200)mm section

Cubicle dimensions

Width : (800 + 200)mm


Standard configurationsBus Coupler Columns


PTTL082D08F4BC

6. Standard Columns Configuration

7. Optional Accessories

The following accessories, common to the complete switchboard need to be ordered in addition to the column references.

Reference Description

PTTL062D04F2 Prisma TT – (600+200)w x 400d, Form 2, O/G



PTTL080D06F4 Prisma TT – 800w x 600d, Form 4, Incomer



PTTL060D08F4Out Prisma TT – 600w x 800d, Form 4, Outgoing

PTTL060D10F4Out Prisma TT – 600w x 1000d, Form 4, Outgoing

PTTL060D06F2Cap Prisma TT – 600w x 600d, Form 2, Capacitor Bank

PTTL080D06F2Cap Prisma TT – 800w x 600d, Form 2, Capacitor Bank

PTTL040D08F4NS Prisma TT – 400w x 800d, Form 4, NS Column

PTTL040D10F4NS Prisma TT – 400w x 1000d, Form 4, NS Column

PTTL082D06F4BC Prisma TT – (800+200)w x 600d, Form 4, Bus Coupler





PTTL462D06F4 Prisma TT – (400+600+200)w x 600d, Form 4, O/G

PTTL064D06F4OUT Prisma TT – (600+ 400)w x 600d, Form 4, O/G

PTTL050D06F4NT Prisma TT – 500w x 600d, Form 4, Incoming/Outgoing



PTTL040D06F2CC Prisma TT – 400w x 600d, Form 2, Cable Compartment

PTTL040D08F2CC Prisma TT – 400w x 800d, Form 2, Cable Compartment

Reference Description Remarks Instruction Leaflet

04645 Set of 20 screws for hor-ver BB joint To be used for hor to ver busbar joints. 2 screws are required per phase

08750L Side panel D400 Each reference includes a set of 2 side panels

08760L Side panel D600 Each reference includes a set of 2 side panels

08756L Combination side panels_D400 Each reference includes a set of 2 side panels

08713L Right Angle Kit corner_without BB supp

08700L 4 x Lifting rings Each reference includes 4 lifting rings

04407 Polypact w/o conn_4x3P NS100/250 04696019

04809 Polypact tooth caps

08963 Adhesive drawing holder, RAL 9001

08992 Anti condesation heater 55w

08998 Thermostat


8. Typical Configuration for a complete switchboard – Example

From the project single line drawing and specification,

• Determine current rating, short-circuit rating, form of separation, cable entry, access, etc.

• Assign dedicated columns for Incomers and Bus Coupler

• Assign module height for each outgoing circuit breaker from the Installation Table... find sum of modules... divide by 33 (37M – 4M, where 4M is for Hor BB) to determine number of outgoing columns.

For the above sketch, ordering references will be as per the list below:

Standard configurationsOutgoing Columns with shared vertical busbar

For these references, refer to Price List to evaluate price for the complete switchboard.

Column Reference Description Qty.

Col – 1 PTTL080D08F4 Prisma TT 800w x 800d Form 4 1

Col – 2 PTTL082D08F4BC Prisma TT (800+200)w x 800d Form 4, Bus Coupler 1

Col – 3 PTTL080D08F4 Prisma TT 800 x 800d Form 4 1

Col – 4 PTTL062D08F4 Prisma TT (600+200)w x 800d Form 4 1

Accessories 04645 Set of 20 screws for Hor-Ver Joint 3

08750L Side Panel D400 2

Note: Panel builder's order has to include the following:• Purchase order with references & Quantities including optional accessories• GA/Layout drawing including general specification sheet, SLD, BOM• Specific comments for manufacturing (door cut-outs, etc.)

Schneider Electric FZE

E Wing, Level 4, Dubai Silicon Oasis, Emirates Road & Dubai-Al Ain Road IntersectionP.O. Box 341057, Dubai, United Arab EmiratesPhone: + 971 (6) 557 07 77Fax: + 971 (6) 557 07 57www.schneider-electric.com/ae

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June 2012

Make the most of your energy™

Due to evolution of standards and equipment, the characteristics indicated in texts and images of this document do not constitute a commitment on our part without confirmation.

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