major retail stores solution guide

Major retail storesSolution guide

Building a New Electric World

Schneider Electric - Major retail stores : Solution guide

Major retail storesSolution guide

Introduction 1Guide’s scope of application 1Organisation geared towards sales 1The needs of a hypermarket 2The structure of a hypermarket 3Analysis criteria for developing a dedicated solution 3

Mastering general electrical distribution 4Needs 4Architecture 6Decentralised electrical distribution 8Controlling and monitoring electrical power distribution 9Block diagram showing implementation over a surface of 8 000 m2 10Advantages of the Schneider Electric solution 12

Mastering sales area lighting 13The role of lighting 13Standard technical needs, different commercial needs 13Schneider Electric solution: Type A 14Schneider Electric solution: Type B 19Advantages of Schneider Electric solutions 23

Mastering air conditioning and heating 24Air conditioning needs 24General principles 25Architecture of the Schneider Electric solution 26Regulation and control 27Advantages of the Schneider Electric solution 27

Mastering checkout and IT system continuity of supply 28Needs 28Architecture of the Schneider Electric solution 29Controlling and monitoring checkout power supply 29Advantages of the Schneider Electric solution 29

Mastering laboratory and cold chain power supply 30Needs 30Architecture 30Installation principle and layout 30Control and monitoring 32Advantages of the Schneider Electric solution 32

Mastering building automation with Transparent BuildingTM 33Needs 33Building automation architecture 34Advantages of the Schneider Electric solution 36

Appendices: Reference documents 37

Introduction

Schneider Electric - Major retail stores : Solution guide 1

Guide’s scope of application

■ Hypermarket : any building designed to receive customers,with the ultimate purpose of selling equipment and servicesto individuals and professionals■■ ground sales surface: from 5 000 m2 to 12 000 m2 with carpark■■ 3 000 to 5 000 food product references ■■ 20 000 to 30 000 non food product references.■ The presence and dimension of a food section has asignificant impact on the building’s electrical distributionneeds.

Organisation geared towards sales

Hypermarkets can be found all over the world.Each hypermarket has its own concepts.There is nevertheless a standard model comprising fivemain zones :■ sales surface■ laboratories or workshops■ checkouts ■ offices■ storage and delivery areas.

The needs of a hypermarket

Guarantee ongoing salesThis can be translated as the need for each utility to operatecontinuously.

Several examples :

Cost cuttingOwing to the small margins of this sector, much attentionmust be paid to investment and operating costs.For a fast return on the initial investment, it is necessary to ensure :■■ highly disciplined management of store operating costs ■■ reliable management of the cold chain (to minimise loss).

Standard cost distribution :

Retrofitting takes place every 10 years and a majorextension every 15 years.

Utilities Maximum Commentspower cut duration

Checkouts < 0.1 sec. Sales, stock management, image

Refrigeration 15 min. Food cold chain quality

Background 10 to 30 sec. Avoid panic, theftslightingHVAC 1 hour Significant reduction

in comfort after 1 hour

Shelves several minutes Sales (TV/Hi-Fi, image)

Investment Operation (consumption + maintenance)

Structure 3 to 5 Lighting € 180 KFood reach-in refrigerators 0.6 to 0.8 Laboratories € 150 KHVAC (~8 rooftops) 1 to 1.5 Food cold chain € 300 KElectrical equipment + VDV 1.2 to 2 HVAC € 150 KDecoration 0.7 to 1 Information system Window displays and and checkouts € 80 Kreach-in refrigerators 1 to 1.2 Miscellaneous Gondolas 1.5 to 1.8 equipment € 100 to 300 KCheckouts 0.5 to 0.8 Other 2 to 3 Hypermarket total € M 12 to 18 Yearly total M € 1 to 1.3

Schneider Electric - Major retail stores : Solution guide2


The structure of a hypermarket

The sales surface is divided into 5 sectors :■ fresh produce■ household appliances ■ cleaning products■ hardware■ clothing.

The laboratories or workshops are areas where products aremade or prepared for sale :■ bakery and pastry shop■ butcher’s■ fishmonger’s■ catering and takeaway foods.Some workshops are located in the sales area :■ cheese section and restaurant.

The geographic breakdown of loads in the store is standardfor each store name and concept.

The reserve is divided up by type of product to be stored :■ food :■■ fresh, dry, refrigerated, frozen products.■ other products :■■ clothing, hardware, white and brown products, furniture.

Analysis criteria for developing a dedicated solution

■ Reduction in investment costs ■■ target reduction : - 20 %■■ scope of action :- simplify electrical distribution architecture- significantly cut back on installation costs- decrease surfaces occupied by plant rooms - make costs transparent, broaden competition.■ Simplify on-site assembly and implementation■■ significantly cut back on wiring and connections ■■ use factory-built and standard connection solutions.■ Reduction in operating costs■■ simple system (Transparent BuildingTM) affording realenergy savings (lighting, HVAC, electricity contract).■ Continuity of supply■■ distribution architecture considerably increasing continuityof supply and facilitating maintenance.


Mastering general electricaldistribution

Needs

■ Have high quality for much less.■ Make sure there is a good connection to the distributionnetwork.■ Protect against and clear faults to minimise disturbanceto the store’s business.■ Optimise the energy bill by shedding and monitoring loads.

Electrical energy needs

The total energy need varies according to the country.It mainly depends on :■ the surface of the sales area (dominant parameter) ■ the choice of energy for heating/air conditioning■ the power required for food cold production■ the type of supply to bakery/pastry shop ovens (electricalor gas).

According to needs, the installed power P may vary from1 600 kVA minimum to 3 200 kVA for a surface of 12 000 m2

with maximum equipment.The power is generally supplied by :■ 1 MV incoming feeder, 2 MV/LV transformers ■ 1 or 2 back-up Gensets ■ 2 UPS.

This solution ensures operating continuity in case of aproblem on the energy distribution network as well asmanagement of the electricity contract.The “generator set” power depends mainly on the quality of local energy. If the quality is good (blackout of aroundseveral minutes a year), a P/2 Gensets is sufficient.If not, two P/2 Gensets are installed.

Cases where significant back-up power is required forelectricity contract management reasons are rare and shouldremain so. With the liberalisation of the energy market, thequality of energy has improved and costs have gone down.

Subdistribution switchboards Average unit Quantityinstalled power

cold generating sets 400 kW 2laboratories 220 kW 3lighting 100 kW 5rooftops 60 kW 7office air conditioning 175 kW 2UPS 45 kW 2power/miscellaneous 20 kW 20


Energy needs per sector

Example for a shopping surface of 8 000 m2

subdistribution switchboard

lighting

HVAC

cold chain

loads near from PDS

check out

subdistribution switchboard

lighting

HVAC

cold chain

loads near from PDS

building automation

Schneider Electric - Major retail stores : Solution guide

Architecture

■ The PowerDistributionSatellites : PDS1and PDS2Each PDS transmits50% of the total storepower. The critical

Transformer 1 protection

Overall protection

Transformer 2protection

Radialnetwork

Doublefeeder

Open ring

PDS 2

PDS 1

■ Supply via the MVdistribution network Depending on thestructure of the MVnetwork, the mainsupply layouts are :■ single feeder(radial network) :the substation is fedvia an incomingcubicle and overallprotection is providedby a fuse-switch orcircuit-breaker

■ double feeder :the substation is fedby two undergroundcables, by twoincoming feeders inautomatic transfermode.Overall protection isprovided either by a fuse-switch orcircuit-breaker ■ open ring:the substation supplyis inserted in this line

6

MV meteringMV ring main unit

loads (cold, lighting,UPS) are fed by the2 PDS at the sametime.Non-critical loads arefed by one or other ofthe PDS.

in series. Overallprotection is providedby a fuse-switch orcircuit-breaker■ MV meteringcubicle to housevoltage sensors ■ transformerprotection is providedby a fuse-switch orcircuit-breaker.

■ Uninterruptedpower supply2 UPS in aredundancy scheme,each 60 KVA,mounted in series andfed by the 2 PDS, forthe supply ofcheckouts, office UPSconnectors, weighing

scales and machines,building and energymanagement PLC’s,heating and food coldchain, videosurveillance andaccess controlequipment.

or or

7

■ Supply ofworkshops andlaboratories Non-critical loads.The subdistributionswitchboards arenearby.They can be load-shed and are splitbetween one or otherof the PDS.

UPS

Genset

LaboratoriesKitchenBakery

HVAC

Reach-inrefrigerators

Lighting

Cold generatingset 1

Checkouts

Offices

Cold generatingset 2

■ Supply of airhandling units :HVAC, rooftopSplit over store roofand connected to themain power lines.

■ Supply of salesarea lighting :feeding split equallybetween each PDSfor better continuity.

■ Supply of reach-inrefrigerators :located in freshproduce areas, thisequipment is fed byone or other of thePDS.

Schneider Electric - Buildings / Retail: Solution guide

■ Generator setsThe installed powerwill be smaller than or equal to the totalpower.2 possible cases :■ the quality of theelectrical energy isgood : back-up isprovided for vitalfunctions and mayhelp to optimise theelectricity contract (one Genset is

sufficient in thiscase).The Genset providesthe following back-up :■■ 50 to 100 % lightingand 100 % officelighting■■ the reach-inrefrigerators■■ the safetyequipment■■ the UPS

■ the quality of theelectrical energy isbad : the Gensetprovides back-up forall loads (2 Gensetsmay be necessary).


Decentralised electrical distribution

This uses two PDS (Power Distribution Satellites) andbusbar trunking systems for power and lighting distribution.Near each power use centre (lab, butcher’s, bakery, reserve,etc.), there are subdistribution cubicles and enclosures.These are directly connected to the nearest busbar trunkingsystem.The biggest loads located in the immediate vicinity of thePDS are directly connected to them via a cable link.

PDS1 PDS2Canalis 2.1

Canalis 1

Main traffic aisles

Freshproduce

Groceries TextileFreshproduce

Groceries

Checkouts

Textile


Essential parts of the architecture :■ splitting of all subdistribution switchboards in the store■ power distribution to these cubicles split via Canalis(straight sections only)■ division of the conventional main low voltage switchboardbusbar in two, each being fed by a transformer■ an optimised protection layout■ definition of PDS functions (supply of Canalis and severalnearby direct loads, compensation capacitors, energymeasurement) ■ strict use of standard equipment, present all over theworld.

Controlling and monitoring electrical power distribution :Transparent BuildingTM solution

A standard electrical need results in the use of a standardcontrol and monitoring solution.

■ Pre-programmed module built in each PDS andsubdistribution cubicle ■■ can be configured without programming or specific tools.

■ Energy contract management■■ entry of pricing scheme using a standard template (i.e : Excel© spreadsheet)■■ measurement of power consumption■■ estimation of energy used at the end of a period ■■ preparation of load-shedding/re-connection orders with 5 levels of priority to guarantee optimal use ofthe contract■■ load-shedding/re-connection orders are executed by the area modules according to the orders issued and loadrequirements■■ alarm, Event Logging, viewing via HTML pages.

■ Operation using generator sets ■■ when the Genset is feeding the installation, rate-basedload-shedding is interrupted, the information is transmittedvia the ETHERNET communication network and the areamodules feed the loads according to the parameters set.

HardwareTablewareEPCS

TVHi-Fi

To know more on Transparent BuildingTM solutions,see page 33.


Block diagram showing implementation over a surfaceof 8 000 m2

LDKV*

LDKV*

*LDKV: direct derivation from Canalis

LDKV*

LDKV*

UPS

PDS1

F27

270kVar 1000A/5A

1000A/5A

P1 P1 P1 P1 P1

400V-50Hz-2000A-24kAl/LkWh

l/LkWh

l/LkWh

l/LkWh

l/LkWh

l/LkWh

M16N11600A

NS630N400A

NS630N400A

NS630N400A

NS630N400A

M16N11600A2000A/5A

TR120kV1000kVA6%0.41kV/D237kV

F27

270kVar 1000A/5A

1000A/5A

P1 P1 P1

400V-50Hz-2000A-24kAl/LkWh

l/LkWh

l/LkWh

l/LkWh

M16N11600A

NS630N400A

NS250N600A

NS630N600A

M16N11600A2000A/5A

TR120kV1000kVA6%0.41kV/D237kV

PDS21250kVA

200A F51N

50A

200A 630A

630AP1

630A 630A50A

6,3A

10A/5A

630AF51N

F50N/51N50A

QM 20kV-50Hz-630A-15kA-1s QM DM2 CM IM IM

RooftopReach-inrefrigerators

Lightingenclosures

Lightingenclosures

MV supply substation

SM6 supply substation

Checkouts,information system,VDV, regulation

Laboratories

Cold storage rooms

Canalis 400A or 500A

Canalis 400A or 500A

Canalis KBB 40A

Canalis KBB 40A


Reminder of conventional architecture

In conventional architecture, loads are fed by the main lowvoltage switchboard via the subdistribution cubicles. All theenergy travels via the cables feeding the subdistributioncubicles from the main low voltage switchboard.The electrical supply functions (main low voltageswitchboard) and control functions (via circuit-breakers andcontactors), and the main subdistribution cubicles aregrouped in the electrical equipment room.… This means kilometres and kilometres of cable,considerable time to install, a highly complex system andsupply that is sensitive to common mode failures.

MSB

130 m

40 m

6 m

72 m

Main traffic aisles

Freshproduce

Groceries Textile Hardware TablewareEPCS

TVHi-Fi

Freshproduce

Groceries

Checkouts

Textile

Advantages of the Schneider Electric solution for large stores

■ Standard design■■ standard specifications and solutions (Cf : specification and recommendation documents listed in the appendix)■■ standard design aid tools (Cf : 4KVA.xls Canalis sizing aid tool).

■ Standard equipment and devices, present all over theworld ■■ factory-built : costs, quality, delivery times ■■ less product references (Prisma, Canalis)■■ products available throughout the world■■ local service■■ PDS manufactured by contractor or local panelbuilder.

■ Simpler and cheaper to install■■ 1/5th of the usual labour time■■ proven smaller investment, around a 13 % saving■■ fewer and simpler product references used ■■ no specific components (e.g. : link between main powerbusbar trunking and PDS via cables).

■ Better performance through decentralised distribution ■■ supply availability increased by a factor of 2 to 24depending on the type of load■■ easier maintenance without necessarily having to shutdown the power system, better connections using factory-built industrial solutions ■■ less stringent short-circuit current related equipmentrequirements ■■ direct connection of subdistribution switchboards to busbartrunking system via an LDKV enclosure (no switchgear)(Cf doc : LDKV design.doc)■■ greater choice of location in small premises and forretrofitting thanks to smaller dimensions of PDS.

■ Transparent BuildingTM standard control andmonitoring■■ can be locally configured for energy saving and qualityapplications, without requiring any specific skills.


Mastering sales area lighting


The role of lighting

■ Besides its purely functional role, lighting has to :■■ make customers feel comfortable■■ ensure the safety of persons.

■ Economic requirement :■■ be managed on a time basis to provide energy savings.

Standard technical needs, different commercial needs

Implement the store’s commercial policy The basis of the lighting policy of a store is the following :■ background lighting■ emphasis lighting■ service lighting■ energy management.

Ensure the safety of persons■ indicate and mark■ prevent people from panicking if there is a power failure ■ avoid maintenance at a height.

Minimise operating costs■ lighting accounts for up to 30 % of the electrical energy used■ areas with dimmed lighting when there are no customers(maintenance, loading, stock-taking)■ the lighting load CANNOT be shed but it is adjustable.


Schneider Electric solution : Type A

Technical definition of the solution

■ General principle■■ provide uniform background lighting with a high level of comfort over the entire sales area and emphasis lightingfor specific needs. Service lighting is provided by decreasingbackground lighting area by area.

Freshproduce

Groceries Textiles

Main traffic aisles

Emphasis lightingareas.To make productsstand out :All fresh produce ;TV, Hi-Fi, hardware,textiles : specificpoints on gondolas.

Emergency lightingaccording to localregulations.

Checkouts


■ Background lighting :■■ provided by parallel lighting lines (trollers) throughout thewhole length of the store.

■ Emphasis lighting :■■ provided by sodium vapour or halogen lamp supports(fresh produce area)■■ products made to stand out using halogen spots (70 W).

■ Emergency lighting :■■ according to local standards.

■ Service lighting :■■ provided by background lighting set at 25 %.

■ Zoning :■■ possibility of lighting 1 to 4 areas separately■■ each area can have a different illumination level.

■ Illumination level :■■ emphasis : 0 – 100 %■■ background : 0 – 25 – 50 – 100 %.

Technical bases

■ Lighting lines :■■ copper 1.5 mm2 five-wire cabling■■ strip made up of 3 metre components (2 x 58 W tubes)fed by electronic ballast using 108 W.

■ Emphasis lighting :■■ by lighting supports.

Lighting lines (trollers)for high comfortillumination(800 to 1 200 lux atground level).Service lighting(200 lux).

Hardware, Tableware,PCS, TV, Hi-Fi


Illumination level control :0, 25, 50, 100 %

Illumination levels

■ 100 %: for total lighting

■ 50 %: for lighting 1 strip out of 2 for each line(i.e. one tube out of 2, in a continuous line)

■ 25 %: by lighting one strip out of 2 for one line out of 2

To use the power channelled in the lighting Canalis as bestas possible and split the load over the 3 phases :■ half of the lighting lines connected to a lighting Canalis arefed by one phase (L1)■ the other half are fed equally by the two other phases (L2 and L3).To balance out the entire lighting over the three phases, aphase rotation is performed in the lighting Canalis supply.

Each lighting line is protected (against overloads and shortcircuits) by fuses in the branch connectors on the lightingbusbar trunking system.Each lighting busbar trunking system is protected (againstoverloads and short circuits) by a circuit-breaker (40 A C60,C curve) at the incoming end. The NS 160 circuit-breaker atthe incoming end of the lighting enclosure ensures selectivitywith the 40 A C60 circuit-breaker and isolation (including theneutral) for maintenance operations (servicing, repairs, etc.).A dedicated outgoing feeder supplies the emphasis lighting.

By mean of trollers cabling and lighting control modification,the solution allows other illumination level like : 0, 33, 66,100 %.


Type A lighting distribution architecture

Supply split betweenPDS1 and PDS2 toensure the bestlighting continuity(e.g. loss of a PDS).

PDS1

PDS2

Power Canalis

Troller supply lines :KBB Double strand(single reference forentire sales areasurface).

Trollers :■ single line failureconfinement■ easy maintenance■ reduced hindrancethanks to interlacing■ sales area lightingcontinuity.

Standard lightingenclosures : one type,whatever the numberof areas and levels■ provides control ■■ either manually viaa push-button■■ or automatically viaa pre-programmedPLC■ ensures protection■ possibility of localcut-off■ proximity ofenclosures/loads.


Lighting control and monitoring :Transparent BuildingTM solution

Standard needs, like energy savings through modulable andflexible time programming, can be met with standard controland monitoring solutions :■ on-board pre-programmed module in each lightingenclosure ■■ can be configured with standard tools.■ features :■■ time programming, on a weekly basis ■■ illumination level management■■ alarm functions, HTML page viewing with a standard Webbrowser (Internet Explorer©, . . .).

Type A solution implementation rules

■ Lighting line lengths fed by each KBB are defined inrelation to :■■ the store’s dimensions■■ the tripping curve of the Canalis incoming protection.

■ The lighting line length is defined to■■ optimise the use of the Canalis (I = 0.8 In)■■ meet the voltage drop requirements in the lighting lines.

■ Example■■ 64 m x 114 m sales area surface (8 000 m2)■■ lighting lines as defined in the “Technical Bases” paragraph ■■ centre distance of lines : 4 m.

Solution, lighting distribution■■ Double strand 40 A KBB ■■ 5 areas fed by 10 KBB■■ length of lighting lines : 24 m.

Schneider Electric Solution : Type B

Technical definition of solution

■ General principle■■ ensure minimum background lighting of entire sales areasurface and generalised emphasis lighting to make productsstand out, lighting of stalls and main aisles.Service lighting is provided by background lighting.

Freshproduce

Groceries Textiles

Main traffic aisles

Reduced backgroundlighting over theentire surface viafluorescent lightfittings.Also provides servicelighting.

Generalisedemphasis lightingover all areas, eithervia fluorescent lightfittings or dischargelamps.

Emphasis lighting in several sales areaaisles.

Emergency lightingaccording to localregulations.

Checkouts

Hardware, tablewarePCS, TV, Hi-Fi



Technical bases

■ Background lighting :■■ provided by light fittings arranged in parallel discontinuouslines over the entire length of the store. Simple starting lowluminance dual-connected light fittings with 2 x 54 Wfluorescent tubes.

■ Emphasis lighting :■■ for horizontal or semi-vertical gondolas, provided bysuspended light fittings with sodium discharge lamps ■■ for gondolas or vertical window displays and freezers,provided by low luminance single-connected fluorescent lightfittings with 2 x 54 W fluorescent tubes in a line ■■ for main aisles, provided by discharge lamp fittingsarranged in a continuous line following the same axis as themain aisle ■■ for decorative lighting of stalls, provided by low luminancesingle-connected light fittings with 54 W fluorescent tubesarranged in a discontinuous line.

■ Emergency lighting :■■ according to local standards.

■ Service lighting :■■ provided by background lighting.

■ Zoning :■■ none.

■ Illumination level :■■ emphasis : 0 – 100 %■■ background : 0 – 100 %.


Lighting control

There is only 0-100 % control based on the weekly program.Control is carried out by the Transparent BuildingTM modulesinstalled in the lighting enclosures. The dedicated outgoingfeeders in lighting enclosures provide separate control of the different light fittings.

Example of operating mode :

■ Background lighting ■■ ON during public opening hours and during service hoursoutside of public opening hours■■ in back-up mode (Genset operation) : OFF (except foremergency lighting).

■ Gondola and window display emphasis lighting ■■ only lit during public opening hours ■■ in back-up mode : kept in operation.

■ Lighting of main aisles and stall decorations ■■ only lit during public opening hours■■ in back-up mode : OFF.

Supply, protection

■ Lighting is split between the three phases to balance the load.■ Each lighting line is protected (against overloads and shortcircuits) by fuses or circuit-breakers located in the branchconnectors on the lighting busbar trunking system.■ Each lighting busbar trunking system is protected (againstoverloads and short circuits) by an incoming circuit-breaker(25 A C60).

Assembly

■ Background lightingThe light fittings are line-mounted on a single-phase KBA-25Canalis busbar trunking system and supplied via Canalis KN(making sure that phases are balanced).

■ Emphasis lightingThe light fittings are fed by KBA-25 Canalis busbar trunkingsystem.


Type B lighting distribution architecture

Standard lighting control and monitoring :Transparent BuildingTM solution

Standard needs, like energy savings through modulable andflexible time programming, can be met with standard controland monitoring solutions :

■ On-board pre-programmed module in each lightingenclosure ■■ can be configured with standard tools.

■ Features■■ time programming, on a weekly basis■■ alarm functions, HTML page viewing.

PDS1

PDS2

Background(service) lighting

Emphasis lighting

Gondola head lighting

Supply split betweenPDS1 and PDS2 forbetter lightingcontinuity.

■ Possibility of localcut-off.■ Proximity ofenclosures/loads.

Single-phase 25AKBA Canalis supplyline (single reference)Separate lightingcontrol.

Single line failureconfinement.Easy maintenance.


Advantages of Schneider Electric solutions for large stores

■ Use of busbar trunking systems for lighting :Canalis■■ standard electrical distribution busbar trunking■■ fewer product references (40 A KBB or 25 A KBA + KN).

■ Standard protection and control enclosures :■■ single reference layout■■ pre-defined configuration for allocated I/O■■ use of standard products available all over the world ■■ local implementation and maintenance possible.

■ A design able to cover all types of layout :■■ number of areas controlled■■ illumination level■■ emphasis, sales area surface with a single reference.

■ Transparent BuildingTM standard control :■■ can be locally configured, without any specific skills.

To know more on Transparent BuildingTM solutions,see page 33.

Mastering air conditioning and heating


Air conditioning needs

■ Ensure customer comfort■■ this depends on how much time customers spend in the store (1 to 2 hours)■■ they keep their coats on and travel around the aisles■■ the atmosphere felt reflects on the store’s image.

■ Ensure hygiene■■ air filtering■■ fresh air renewal.

■ Minimise operating costs■■ the air conditioning accounts for up to 20 % of the energy used ■■ this load can be shed.

Rooftop


General principles

There are two types of machines used in large stores for air conditioning and heating: rooftops (RT) and Air HandlingUnits (AHU).

Standard rooftop solution This comprises compact and autonomous units placed on the roof.The rooftop only needs electricity supply to operate.Installation is thus very simple. The standard powerrequirement is 60 KW per rooftop.6 to 10 rooftops are needed for a store of 8 000 m2.These loads can be easily shed using the ON/OFF functionsor by widening the regulation window.

Air Handling Unit (AHU)■ centralised hot and cold water generators are locatedoutside the store ■ they supply the air handling units placed throughout the store with the heat or cold necessary via a water circuit ■ a network of water pipes is necessary, as well as anelectrical supply■ it is difficult to load-shed the system.

Winter: hot waterSummer: cold water

Hot watergenerator

Cold watergenerator

Electricalsupply

Condensation

AHU

Fresh air

Hot batteries

Inside air Conditioned air

Cold compressors

Filtering

Electrical supply (e.g. 60 kW)


Architecture of the Schneider Electric solution

The power distribution architecture is particularly welladapted to the RT or AHU supply on the store roof.

Rooftop

The rooftops andAHU are directlyconnected by a cableto the power busbar

trunking systems.The protection,regulation and controlof each rooftop or

Cold or heatgenerators for theAHU fed directly by one or other ofthe PDS

Water pipes

PDS1

PDS2

Connection boxes

Air Handling Units (AHU)

AHU is integrated in the built-in branchunit.


Regulation and control : Transparent BuildingTM solution

■ Because the RT/AHU are standard it is possible toimplement a standard automatic control and regulationsystem only requiring configuration (no programming).■ Built-in pre-programmed module using open controllers for the RT/AHU.■ Functions :■■ ventilation management, compressor management,regulation, management of additional sources, load-shedding, alarm, status viewing.

ImplementationOnly requires configuration of the RT or AHU characteristics.


■ Simple to install :■■ supply via power Canalis ■■ built-in control in the RT and AHU.

■ Standard Transparent BuildingTM control :■■ can be configured locally, without requiring any specificskills.

■ Products available locally :■■ world-wide service guaranteed.

■ Features :■■ access to RT/AHU information (maintenance . . .) throughHTML pages viewing with a standard Web browser (InternetExplorer©, . . .).

To know more on Transparent BuildingTM solutions, see page 33.

Mastering checkout andinformation system continuityof supply


Needs

The checkouts are vital to the business of a large store:■ checkout and information system interruption time = 0■ permanent data transmission.

NO power failure possible : UPS with sufficient autonomymust be used.It is preferable to have “2 on-line, isolated redundant UPS”.

Checkouts data network class D :■ cabinets/cubicles : active components (hubs, switches),Cat 5e FTP patch cables and RJ 45 patch panel■ distribution network : Cat 5e FTP copper cables and RJ 45terminal outlets.


Architecture of the Schneider Electric solution

Block diagram of the power supply to the checkouts andinformation system, using 2 Galaxy UPS.

Advantages of the Schneider Electric solution for checkout power supply

■ Installation reliability■■ direct power supply on the 2 PDS.■ Standard Transparent BuildingTM control andmonitoring■■ can be locally configured, without requiring any specificskills ■■ built-in control and monitoring in GALAXY UPS throughdirect reading of on-board HTML pages.

Checkout lighting(normal).Power supply fromlighting Canalis.

Checkout power supplyStatic contactors Canalis KBA

60 kVA Galaxy typeUPS with 15-minuteautonomy.

Power supply splitbetween the 2 PDS.

Back-up Genset.

PDS1

PDS2

Direct TransparentReady Supervision of UPS via HTMLpages.

To know more on Transparent BuildingTM solutions, see page 33.

Mastering laboratory and cold chain power supply


Needs

Supply with sufficient power to ensure continuousproduction.Contribute to energy management.Regulate and control food cold production.

Architecture

Double power supply.Easy maintenance.Food traceability.

Installation principle and layout

Subdistribution switchboards are located as close as possible to the energy needs :■ laboratories/workshops■ reserves■ vehicle battery charging room■ compression room■ cold storage rooms.

Cold chain supply layout

Laboratories and annexes supply layout


Food cold generatingsets.Power supply splitbetween 2 PDS.

Laboratoriesand annexes

PDS1

PDS1

PDS2

PDS2

Cold storage rooms

Cold generating sets

Reach-in refrigerators

Cold storage rooms

Laboratories :■ Pastry shop■ Bakery■ Butcher’s

Reach-in refrigeratorsdirectly connected topower Canalis.


Control and monitoring : Transparent BuildingTM solution

Built-in pre-programmed module in subdistribution cubiclesand reach-in refrigerators.

■ For electrical distribution in laboratories :■■ manage loads according to weekly program, local override ■■ optimise consumption (kVA, kWh, cos Phi) and energycontract■■ alarms, logs, viewing on HTML page.

■ For the “cold chain” :■■ control and regulate production ■■ control reach-in refrigerators (defrosting, regulation, load-shedding)■■ ensure traceability of temperature variations ■■ alarms, log, viewing on HTML page.


■ Simple to install :■■ supply via power Canalis■■ excellent continuity of supply of the cold chain.

■ Simple to implement :■■ products available locally■■ world-wide service guaranteed.

■ standard Transparent BuildingTM control :■■ built-in control ■■ can be locally configured, without requiring any specific skills.


Satisfy operators needs

■ Reduce the operating costs of the various electricalsystems in order of importance :■■ lighting (optimisation of lighting periods and levels)■■ electricity contract (optimisation of type of contract)■■ HVAC (integration in contract management)■■ laboratories (integration in contract management)■■ food cold production■■ office air conditioning (optimisation of lighting and heatingperiods).

■ Get simple and immediate access to the information :■■ access to monitoring and control information using anInternet Explorer© type tool■■ the right information at the right place.

Provide simple tools/products for system integrators andelectrical contractors

■■ re-use of tools and conventional Web architectures : nospecific tools ■■ implementation of our solutions doesn’t require any specifictraining.

Contribute to the continuity of supply of the sales area

■■ lighting management and time-based programming■■ load-shedding management to optimize the energy cost■■ authorisation and user-friendliness of override system.

Mastering building automation withTransparent BuildingTM

Web-enabled Power & Control


Building automation architecture

The best architecture to meet the needs of Hypermarket typebuilding automation is distributed as it provides control andmonitoring of each type of utility (HVAC, background lighting,etc.). Each application can be installed, maintained andsupervised independently of the others. Architectures withcentral controller are better suited to smaller size buildings.

Features of the Schneider Electric solution

Based on high modularity■ One separate module for each function. The modulesintegrate all the control, monitoring and local archivingfunctions as well as a Web server for equipment diagnosis andsupervision via on-board HTML Web pages.

Hypermarket Transparent BuildingTM modules are the following :■ energy saving ■ lighting and alarm management■ HVAC management (rooftops, AHU)■ food reach-in refrigerator management■ area management (laboratories, reserves, etc.)

Cold roomsFreezers andrefrigerated areas

Lighting

Office arearegulationand control

EmbeddedWeb server

■ Controllers extensive range ofcontrollers from local andsimple applications to themost complex distributedones

■ ControllersConfigurablezone controllersfor optimizationof running costsand indoorcomfort

Webbrowser

Example of fancoil unit control


Based on world-wide standards : TCP/IP Ethernet, HTTPservers . . .■ one Web server per module/application. E.g. one serverper PDS, one server for the lighting function■ one fixed IP address per Web server. No specificconfiguration■ information on the function being controlled and monitoredis contained in HTML pages on-board in each server■ direct access to information, application by application,from any PC connected to the building LAN, via a standardWeb browser (Internet Explorer© . . .) ■ user can customise Web pages using standard toolsavailable on all PC’s (Front Page)■ these pages will either be permanent in the equipment(factory programming), or programmable and downloadableby the system integrator using standard (Front Page) tools■ data available via Internet (ad hoc gateway needed onstore LAN), for example, to centralise information about theenergy expenditure of several stores.

HVAC

Lon Modbus

■ GatewayWeb server for LonWorks®network

■ GatewayWeb server for Modbusnetwork

■ ControllersProgrammablecontrollers for heatingand ventilation control

EmbeddedWeb server

The embedded Webservers enable users to operate directly viatheir Web browsers

■ Human machineinterface

Webbrowser

Webbrowser

Ethernet TCP / IP

Foodpreparation area

Web

EmbeddedWeb server

■ Protection andcontrol relayuniversal communicatingrelay

■ Control unitlow voltage distributioncontrol, switchgear withbuilt-in automatic control

■ Power monitoring unitmulti-functionalmeasurement, compact,easy of view, easy tooperate, modular andscalable

Example of rooftopcontrol (there may bebetween 6 and10 rooftops in an 8 000 m2 hypermarket)



■ Accessible by any non-specialist system integrator■■ the use of universal tools, protocol and mechanismsmeans that any non-specialist system integrator can be incharge of this type of application ■■ during the implementation phase, no specific skills ortraining are necessary. Knowledge of basic PC technologiesis sufficient.■ “World-wide” access to information to facilitateequipment maintenance This architecture is ready to receive the maintenanceinformation for the various machines installed in order tomake it available to operators or service providers (eitherlocally or remotely).■ HMI adapted to hypermarkets■■ during operation : the operator is only provided with thenecessary information for operations to be carried outefficiently. Several levels of access rights can be defined.■■ the specific supervision needs of a hypermarket operatorcan be covered by simply developing Web pages (HTML)on-board in the servers. This solution is simple, low cost, and fully covers operators needs.■ Simple to install■■ no specific wiring needed, standard Ethernet networkwiring used (RJ 45 connectors).■ Flexible, upgradable, open■■ it is easy to integrate additional functions without having to rework the whole system (e.g. addition of a rooftop, storeextension)■■ it is possible to integrate the equipment of third parties inthe HTML TCP/IP standard tool (e.g. supervision of othermachines).

Appendices :Reference documents


Titles References

Sizing the derivation cables Method LDKV Design.doc51112824-57

Sizing the derivation cables fast method Abaque KVA50.doc,for KVA 500 A, 630 A 51112824-64

Abaque KVA63.doc51112824-65

LDKV panel specification Specif_LDKV_cpanel_EN.doc51112824-61

Power Distribution Satellite Specification Specif_PDS_EN.doc51112824-62

Electrical distribution base Specifications Specif_DE_base_FR.doc51112824-51

Presentation of the principles of electrical Large_Retail_ED_solution_distribution for large retail centres presentation_DJH.zip

Lighting Specification Specif_lighting_EN.doc51112824-59

Lighting panel Specification Specif_lighting_panel_EN.doc51112824-60

Design tool for electrical distribution 4KVA.xls 51112824-63

Leaflet Transparent BuildingTM TRAED101025EN

Schneider Electric Industries SAS

Postal address :F-38050 Grenoble cedex 9FranceTel. : +33 (0) 4 76 57 60 60

http : //www.schneider-electric.com

As standards, specifications and designs develop from time to time, always ask for confirmationof the information given in this publication.

Published by : Schneider Electric Industries SASDesign by : n.b. nota benePhotos by : Schneider Electric photo libraryIllustrations by : Schneider Electric, n.b. nota benePrinted by :

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major retail stores solution guide

Documents