Planning of the Power Distribution – SIEMENS

8/22/2019 Planning of the Power Distribution SIEMENS

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Planning of the

Power Distribution

Design Example


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Specifications -Excerpt from the

Project Description.For a high-rise office building with shopping arcade in

Berlin, Germany, the power supply has to be planned for a

10-story building (12 f loors) with a floor area of approx.

25 m x 60 m.There is a car park for customers in front of the building,

the access way to the parking garage (levels -1 to -3 for

employees) and a fountain (80 m x 20 m). Real floor area

approx. 1350 m2 (14 levels + technical equipment on roof

level).

Floor heights of levels 00 to +10: 4 m, levels -1 to -3: 3 m. The

valid rules and regulations have to be observed.


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General SpecificationsThe level of building installations, equipment and furnishing

should represent an average standard of innovation andcomfort.

Emphasis should be placed on energy savings. Single-room

control and presence signaling should be provided. A fire

alarm system, video surveillance of the traffic routes, theparking garage, the shopping arcade and the outside area as

well as an access control system have to be planned.

The building has external shutters. The media supply is viatwo utilities hubs that contain the elevators, staircases,

electrical distribution boards, ventilation and other media.

Within the levels, the supply routing is in the ceiling.


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Specifications for the Floors

Level 00:

The following stores and businesses have been planned

for level 00: bakery, travel agency, bank, dry cleaners and

jeweler. The power consumption is to be assigned to theindividual stores. On level 00 there is also a doctor, a day

nursery, the mail center as well as the reception, the

control center and the fire alarm center.


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Levels +1 to +9:

The PC workplaces with telephone and communicationnetwork are on levels +1 to +9. The workplaces have individual

lighting and general lighting (daylight dependent) The IT

server room is on level +5.

Level +10:

Executive floor with conference rooms and briefing rooms as

well as a kitchen (120 m2) and cafeteria (750 m2).

Levels -1 to -3:Underground car park including control system; 10% of parking

lots reserved for women. Outside area with decorative lighting.


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Specifications for the Occupied Areas

Office areas (levels +1 to +10):General: fire alarm system Suspended ceiling with integrated lighting Installation systems in window sill / workplace floor ceiling

column PC workplace, telephone, communication network (printer ) Individual lighting and general lighting, dimmed depending

on daylight Individual room control (ventilation, air conditioning)

Presence signaling (office hours) External shutter controlCommunication routes (all levels):General: video surveillance, fire alarm system

Suspended ceiling with integrated lighting


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Stores (level 00):

General:video surveillance, fire alarm system

Bakery (2/3 salesroom and 1/3 backrooms)

Travel agency (2/3 salesroom and 1/3 storeroom,kitchen / lavatories)

Bank (2/3 salesroom and 1/3 storeroom / safelavatories), security system.

Dry cleaners (1/3 salesroom and 2/3 backrooms)Jeweler (2/3 salesroom and 1/3 backrooms), securitySystem.


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Underground parking garage (levels -1 to -3):General:

video surveillance, access control, fire alarm system Car park control system Surface-mounted lighting, parking lots reserved forwomen (10%)Utilities rooms (levels -1, 00, 5, roof):General: video surveillance, fire alarm system

Medium-voltage switchgear: false floor TransformersLow-voltage switchgear: false floor Diesel backup system Battery system UPS system Refrigeration technology Ventilation Sprinkler system


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Conference rooms, presentation (level +10):General: fire alarm system

Video conference, presentation system (beamer )Telephone, communication network (printer )Sanitary facilities (all levels):General: fire alarm system

Storage area (all levels):General: fire alarm systemIT server room (level +5):General:

video surveillance, access control, fire alarmsystemKitchen / cafeteria (level +10):General: video surveillance, fire alarm system.


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Utilities hubs (all levels):General:

video surveillance, fire alarm systemElevators: 2 x passenger elevators 1 x restaurant/freight elevator Staircase

Electrical installations: distribution cabinet room (GPS/SPS), rising main bus

bars. Ventilation, air conditioning, mediaGarbage/refuse: 30 m2Mail center (level 00):General: video surveillance, fire alarm system.


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Doctor (level 00):

General:

access control, fire alarm system 1 x waiting room: 18 m2

2 x changing rooms: each 2 m2

2 x consulting rooms: each 15 m2

1 x archive room: 10 m2

1 x laboratory: 12 m2

2 x lavatory: each 9 m2

1 x hallway/reception: 18 m2

Recreation area / kitchenette (all levels):

General: fire alarm system

Reception / control center /fire alarm center (level 00):

General:

video surveillance, access control, fire alarm System.


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Recreation area / kitchenette (all levels):

General: fire alarm system

Reception / control center /fire alarm center

(level 00):

General:

video surveillance, access control, fire alarmSystem.


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Power Demand EstimateApproach:

based on W/m2, according to the Application Manual, BasicData and Preliminary Planning, Chapter 3 Determination

and Division of Power Demand.

Parking garage / utilities areas (incl. roof area)

Basement levels -1 to -3 with 1,350 m2 each + utilities areas ca.

210 m2 (areas between utilities hubs), assumed average power

demand: 10 W/m2 Calculation: (3 x 1,350 m2 + 210 m2) x 10

W/m2 = 42,600 W.

Shopping center / bank

Ground level 00 with 1,350 m2, assumed average power

emand: 60 W/m2

Calculation: 1 x 1,350 m2 x 60 W/m2 = 81,000 W


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Offices

Levels +1 to +10 with 1,350 m2 each, assumed average power

demand: 50 W/m2Calculation: 10 x 1,350 m2 x 50 W/m2 = 675,000 W

Refrigeration / ventilation

11 levels with 1,350 m2 each, assumed average power demand:

60 W/m2.

Calculation: 11 x 1,350 m2 x 60 W/m2 = 891,000 W

Total power demand

approx. sum: 1,690 Kw

Required transformer outputThe established total power demand determines the required

transformer output. The determination is based on a cos phi =

0.85 and a transformer load level of 70%.

Calculation: 1,690 kW / (0.7 x 0.85) = 2,840 kVA


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Building use Average powerdemand 1

Simultaneityfactor 2

Comments

Bank 40 70 W/m2 0.6

Library 20

40 W/m2 0.6

Office 30 50 W/m2 0.6

Shopping center 30 60 W/m2 0.6

Hotel 30 60 W/m2 0.6

Department store 30 60 W/m2 0.6

Small hospital(4080 beds)

250 400 W/m2 0.6

Hospital(200500 beds)

50 80 W/m2 0.6 ca. 2,000 W perbed

Warehouse(no cooling)

2 20 W/m2 0.6

Cold store 500 1,500 W/m2 0.6 Upper values fordeepfreeze store

Apartment complex 10 30 W/m2 0.6


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Building use Average powerdemand 1

Simultaneityfactor 2

Comments

Museum 60 80 W/m2 0.6

Parking garage 3 10 W/m2 0.6

Production plant 30 80 W/m2 0.6

Data center 500 2,000 W/m2 0.6

School 10 30 W/m2 0.6

Gym hall 15 30 W/m2 0.6

Stadium(40,00080,000

seats)

70 120 W/seat 0.6

Old peoples home 15 30 W/m2 0.6

Greenhouse

(artificial lighting)

250 500 W/m2 0.6

1) The values specified here are guidelines for demand estimation and cannotsubstitute precise power demand analysis.2) The simultaneity factor (SF) is a guideline for preliminary planning and must be

adapted for individual projects.


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Schematic Power Supply Concept

The following aspects should be taken into Considerationwhen designing electric power distribution systems:

Operational simplification due to clear and straightforward network configuration

Low cost for power losses, e.g. by medium-voltagenetwork-side power transmission to the load centers

High reliability of supply and a high degree ofoperational safety for the plant even in the event of

faulted items of equipment (standby power, selectivity,i.e. fault-discriminating system protection, and highavailability).


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Easy adjustment to changing load and operating

conditions. Low operating costs thanks to maintenance-friendly

equipment.

Sufficient power transmission capacity of equipment

both under normal and fault operating conditions. Good power supply quality, i.e. low voltage

fluctuations owing to load fluctuations at a sufficientlevel of voltage symmetry and low harmonic content in

the voltage.

Compliance with applicable standards and projectrelated Rules for special installations.


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Building type High-rise building

Number of floors 10 to 20Ground area / total area 1,000 m2 / 20,000 m2

Segmentation ofpower required

80% utilized area20% side area

Power required 1,500 kW; for 2 MW or higher, a relocation of the

transformers should be consideredeven if the number of floors is less than 10

Supply types 100% totalpower from the public grid

100% total power from the public grid1030% of total power for safety power supply (SPS)

520% of total power for uninterruptible powersupply (UPS)

Power system protection Selectivity is aimed at

Special requirements Good electromagnetic compatibilityHigh safety of supply and operation


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Feature Our solution Advantage Your benefit

NetworkConfigurationSmax = 1,800KVA, cos phi =

.85Floors: 20

Splitting into two supplySections 2 transformer moduleswith (2 + 1) x 630 kVAUkr = 6%, i.e. Ik 45 kA

Short LV cables, lowpower losses,reduction of fire Load

Economical, eased fireprotection

Voltage stability,lighter design

Optimized voltagequality, economical

Redundant supply unit: Generator 800 kVA (30%)(the smaller the generator, thegreater the short-circuit currentmust be compared to thenominal current) UPS: 400 kVA (15%)

Supply of importantconsumers onall f loors in the eventof a fault, e.g.during power failureof the public grid

Increased safety ofsupply

Safety power supply Safety power supplyacc. To DIN VDE 0108

Part 718

Supply of sensitive orimportant consumers

Uninterruptible powersupply during powerfailure of the publicgrid

Radial network Transparent structure Easy operation andfault localization


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Feature Our solution Advantage Your benefit

Medium-voltagesupply

station

SF6 gas-insulated Small switchgearstation,independent of

climate

Minimized spacerequirements forutilities room; no

maintenanceTransformer GEAFOL cast-resin

with reduced lossesLow fire load,indoor installation

Economical

Low-voltagemaindistribution

SIVACON with centralgrounding point >splitting of PENin PE and N to the TN-S system (4-poleswitches in the feedinglines and at thechangeover point)

EMC-friendlypower system

Protection oftelecommunicationequipment frominterference.

Wiring /main route

Cables Centralmeasurements ofcurrent, voltage,power, e.g. forbilling, centrallyper floor in LVMD

Central dataprocessing


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Detailed Power Demand Calculation -

Installed Capacity.

Lighting:Light between the Priorities of Energy Efficiency and Light Quality.

Lighting of offices / kitchen:

For a rated illuminance of 500 lx and a ceiling height of 3 m, an

installed capacity of 30 W/m2 is assumed.Lighting of individual stores:

For a rated illuminance of 300 lx and a ceiling height of 3m, an

installed capacity of 17 W/m2 is assumed.

Lighting of traffic areas / utilities / parking lots:

For a rated illuminance of 100 lx and a ceiling height of 3 m, aninstalled capacity of 6 W/m2 is assumed.

Lighting of cafeteria / lavatories:

For a rated illuminance of 200 lx and a ceiling height of 3 m, an

installed capacity of 11 W/m2 is assumed.


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Other areas:For a rated illuminance of 200 lx and a ceiling height of 3 m, an installed capacity of11 W/m2 is assumed.Other loads:Office, 2-person workplace, power outlets 0.8 kWOffice, 6-person workplace, power outlets 2.4 kWElevators for 3 floors 9 kWSprinkler pump 30 kWCentral battery 8 kWFan-assisted oven, bakery 10 kWKitchen/restaurant 40 kWKitchenettes on every floor; 11 floors at 3 kW 33 kWLavatory, hand-dryers, 20 units at 2 kW 40 kWIT server room 55 kWGas extinguishing system 3 kWKitchen 150 kW

Ventilation, air conditioning, 80 W/m2(office area, 10 levels at 1,350 m2) 1,080 kWElevators 22.3 kWSmoke extraction, 2 x 10 kW 20 kWGutter heating 70 kWOther loads (photocopiers, small equipment )

ca. 10 kW per level 110 kW


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Type of indoor area oractivity

Nominal illuminanceEn (lx)

Comments

1. General Areas

Traffic zones instorerooms 50

Storage areas

Storage areas for similaror large-unit goods

50

Storage areas with searchrequirements for non-similar storage goods

100

Storage areas withreading requirements

200

Automatic high-rack warehouseCorridors 2

Operator station 200

Dispatch center 200


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Type of indoor area oractivity

NominalilluminanceEn (lx)

Comments

Recreational, sanitary and medical care facilities

Canteens 200 Atmospheric lighting, possiblyincandescent lamps

Other recreational roomsand resting areas

100

Rooms for physicalexercise

300

Changing rooms 100

Washing rooms 100 Possibly additional illumination ofmirrors

Lavatories 100

Medical rooms, rooms forfirst aid and medical care

500

Type of indoor area or activity Nominal illuminance En (lx) Comments


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Type of indoor area or activity Nominal illuminance En (lx) Comments

Building services, utilities

Machine rooms 100

Power supply and distribution 100

Telex, post room 500

Telephone operator 30

2. Traffic routes inside buildings

For people 50For people and vehicles 100 Adjustment of nominal illuminance

to adjacent areas: En1 0.1 En2 where: En1 = En of thetraffic routes En2 = En of adjacent areas

Stairs, moving escalators andinclined traffic routes

100

Automatic conveyor systems orbelts in the vicinity of trafficroutes

100

Gateway areas

For day shift (min. 400 lx) 2 x En

For night shift 0.5 En to 0.2 En


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Type of indoor area or activity Nominalilluminance

Comments

Office rooms with daylight-orientedworkplaces only in the immediatevicinity of windows

300 Workplace-oriented generallighting, at theworkplace at least 0.8 En

Office rooms 500

Open-plan offices high level of reflectionmedium reflection

7501000

High levels of reflexion: ceilingswith min. 0.7, walls/partitions min.0.5. Single-user lamps useful.

Technical drawing 750 En referred to a typical position of

the drawing board of 70 towardsthe horizontal plane; in the center1.2 m high

Conference /meeting rooms 300

Reception rooms 10

Areas with access to the public 200

Areas for data processing 500

3. Wholesale and retail trades

Shops 300

Cashier s desks 500


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Power Distribution ComponentsIn the general power supply (GPS), components are fed by

load transfer from the medium-voltage system (max. 52

kV) using distribution transformers.

For the standby power supply system, power sources areselected according to the permissible interruption time.

Generators for safety power supply (SPS).

Uninterruptible power supply (UPS) as a static UPS,consisting of a rectifier/inverter unit and battery


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General Power Supply (GPS)To be determined by project specifications, or else the

Application Manual, Basic Data and Preliminary Planning,

Section 5.2 Distribution Transformers.

Medium-voltage switchgearA gas-insulated medium-voltage switchgear as utilitiessubstation at level -1, and as a substation on the rooftop. See

Application Manual, Basic Data and Preliminary Planning,Section 5.1 Medium-Voltage Switchgear.

Note on product selection:The gas-insulated Siemens 8DH10 switchgear requires approx.

30% to 50% less space (depending on the voltage level)compared to air-insulated switchgear requires no maintenancefor life is highly available, as it requires no maintenance is notsusceptible to environmental and climatic impact, as all live parts areimmersed in gas.


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permits fast system expansions and panel replacementsthanks to its modular design provides a high degree of

operator safety, as the switchgear is encapsulated and arc-fault-tested requires only small pressure relief openings toprovide for accidental arcs, as the pressure increase is onlyapprox. 30% compared to air-insulated switchgearTechnology.

Distribution transformersFour cast-resin dry-type transformers with 800 kVA each: 2 cast-resin dry-type transformers at level -1

2 cast-resin dry-type transformers on the rooftopSee Application Manual, Basic Data and PreliminaryPlanning, Section 5.2 Distribution Transformers.


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Note on product selection:

Siemens GEAFOL cast-resin dry-type transformers

can be used in any climate (persistent to humidity andtropical conditions, high and low temperatures)

place the lowest requirements on water protection and fireprevention (special rooms, oil tub etc. become obsolete)

require no insulating liquid

emit low noise are hardly flammable and self-extinguishing can be recycled

require only a small space for installation

provide up to 50% performance increase when cross flow

fans are installed require no maintenance

are cost-effective thanks to aluminum instead of copperwindings


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8DH10 medium-voltage switchgear


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Low-voltage main distribution

A type-tested switchgear assembly (TTA) in compliance with

IEC 60439-1, with extended testing of behavior in the event ofan accidental arc, as low-voltage main distribution system,

installed at basement level -1 and on the rooftop.

See Application Manual, Basic Data and Preliminary Planning,

Section 5.3 Low-Voltage Main Distribution.

Note on product selection:

Siemens SIVACON low-voltage switchgear provides the utmost

of plant safety owing to type-tested assemblies is space saving

with an installation area of 400 mm x 500 mm or above.


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offers a choice as to bus bar position (top/rear)

enables cable/bus bar connection from the top,bottom or rear

allows a combination of different mountingtechniques within one panel

has a switch-test and disconnection position withclosed door while maintaining the same degree ofprotection (max. IP54)

ensures maximum operator safety thanks to an arc-

Fault proof locking system allows flexible adjustmentsof its inner compartmentalization to customer needs


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has a uniform operator interface for all withdraw able

units has a universal hinge for ease of subsequent changes

of the door opening (left/right)

has a high-efficiency ventilation system that provides

maintenance advantages

presents a high-quality industrial design for seamlessintegration in modern room concepts

boasts of a worldwide network of SIVACON licensedmanufacturing partners that ensure service andsystem availability.


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Bus bar trunking systemsA bus bar trunking system to connect the low-voltage maindistribution system to the transformers and for power transmission

as rising mains line in the utilities hubs.See Application Manual, Basic Data and Preliminary Planning,Section 5.4 Bus bar Trunking Systems.

Note on product selection:SENTRON bus bar trunking systems by Siemens

have a 20% lower fire load than cables are easy to install and extend, as they dont require any sophisticatedsupport constructions

are EMC-friendly have a low weight (aluminum conductors) are cost-effective (aluminum instead of copper conductors)

allow straightforward routing of power lines are comparable to short-circuit-proof cabling; no additional

precautions required provide a high degree of operational safety are part of the seamless power distribution concept by Siemens,

constituting a type-tested unit (transformer/ LVMD, LVMD/SD)


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SIVACON S8 low-voltage switchgear


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SENTRON bus bar trunking systems


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Sub distribution systems and distribution boards

To ensure reliable power supply of all consumer equipment,

appropriate sub distribution systems should be provided.

Relevant standards, such as IEC 60364-30 and IEC 60364-4-

51, must be complied with.

Note on product selection: TTA from end to end (transformer and bus bar to LVMD,

LVMD, bus bar for power distribution, Siemens ALPHA subdistribution boards).

Product range covering all distribution boards from 63 A to630 A.

The ALPHA SELECT software tool enables fast and easyconfiguration of the distribution boards.

ALPHA 160 DIN ll t d


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ALPHA 160-DIN wall-mounted

distribution board

ALPHA 630 DIN floor mounted


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ALPHA 630-DIN floor-mounted

distribution board


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Standby Power Supply

The standby power supply consists of the safety

Power supply system (SPS) and the uninterruptible

Power Supply system (UPS).

Generator for safety power supplyTo provide for necessary life safety equipment, such

As emergency lighting, elevators for firefighters, etc.,

A Diesel generator as standby power supply unit (t 15 s) is Installed in a container on the rooftop;

selected rating 800 Kva.

U i ibl l


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Uninterruptible power supplyThe requirements of the system integration in accordance with

Totally Integrated Power must be satisfied by an (input-side)frequency- and voltage-independent load supply through

double-transformer UPS devices (so-called online devices withdouble-conversion operation). In this context, the distributeduse of plug-in devices can be excluded from the planning.

A CE marking in accordance with Directive 73/23/EEC for low-voltage systems and 89/336/EEC for electromagneticcompatibility is required for the operation of UPS devices withinthe European Community. These regulations have been includedin the international standards for safety requirements (IEC62040-1-1 for operation in easily accessible rooms and IEC 62040-1-2 for operation in locked service rooms) as well as in the EMCrequirements (IEC 62040-2).

The UPS is installed at level 5 with a rating of 100 kVA (centralarrangement in the vicinity of the main consumer (IT). IEC62040-3 has been considered for rating the UPS. A central, staticUPS system with a separate batteries room was chosen; selected

rating 100 kVA.


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Further Components and InstallationsAutomated room control

A building management system is included in the planningto provide integrated room control functions (constantlight control, presence signaling, shading, room climatecontrol ).

Manufacturer/type: Siemens / instabus KNX/EIBFor details on the integrated room control functions ofSiemens instabus KNX/EIB,

Note:

Excerpt from the tender specification:The following contract items are to be delivered and performedas a fully operative KNX/EIB building management system.


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The supplier should specify and verify the following byproof:1. ETS3 license number: ...........................................

2. Reference systems (a minimum of two in the same size as theplanned installation):System 1: .............................System 2: .............................

3. Proof of certification of the company or staff member from anauthorized KNX/EIB training center.

Alternatively, a KNX/EIB service provider may be named.Appropriate proof of certification must also be included.

The following basic requirements are placed on the bus:1. Sound communication according to KNX/EIB standard (EN 50090

and following DIN VDE 0829), twisted wires with a wire diameterof 0.8 mm.2. Safe isolation from the power network.3. Bus cables whose wires have a joint enclosure. As minimum

requirement, the bus cables must be rated for the same testvoltage between conductor and cable surface, that also applies to

power cables.


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Bus cable labeled: YCY 2 x 2 x 0.8 mm2, normal design,

HCH 2 x 2 x 0.8 mm2, halogen-free design. First wireair for signal transmission and power supply, secondwire pair as reserve.

If conventional switch and pushbutton inserts areUsed, it must be ensured that the rockers can besnapped into the frame as a unit.

To ease installation work for positioning the switch,

and in order to compensate for wall clearances, therockers must be furnished with elongated guide pinsand the installation devices with flexible contact leverguides.


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The calculation of unit prices must include delivery,installation ready for service, addressing,

parameterization, testing and switching works,machine-operated labeling, share of documentation,including handing over of project parameterization onCD-ROM, all additional services, small parts andfixtures, terminals and wiring shares, data bus bars, bus

terminals, and scaffolding up to 3 m.Leading product: Siemens

Switch range: DELTA line, Titanium white

Elevators

Elevators must be chosen with an appropriate loadcapacity for the conveyance of people.

Model: OTIS


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Safety lighting

A safety lighting system consists of the following components:

safety power source, distributors, monitoring devices, cabling,luminaries and rescue signs.

Model: CEAG

Note:Emergency lighting control can be performed by using

KNX/EIB and DALI. In this context it is important that the

controllers and bus systems for the electrical safety

Installations be independent of the controllers and bus

Systems of the building management system. For this

purpose, electronic control gear (ECG) with a DALI interface

is used in the safety luminaries.


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Power System Considerations:Power Supply Systems according to the Type of Connection to Ground:

The type of connection to ground of the medium-voltage or low-voltagepower system should be selected carefully, as it is crucial for the extent ofprotective measures to be taken. At the low-voltage side, it also determinesthe systems electromagnetic compatibility.

Selected power supply system: TN-S systemPower Supply Systems according to the Type of Connection to Ground.

Note on product selection:Power systems in which electromagnetic interference plays an important artShould preferably be configured as TN-S systems immediately downstream

of the point of supply. Later, it will mean a comparatively high expense toturn existing TN-C or TN-C /S systems into EMC-compatible systems. Thestate of the art for TN systems is an MC-suited design as TN-S system.


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Selectivity in Low-Voltage SystemsTime range 100 ms:

The time range above 100 ms can be analyzed by a comparison ofcharacteristic curves in the L- or S-range. Tolerances, requiredprotective settings, curve representation in identical scales etc.are to be observed.

Time range < 100 ms:The standard requires selectivity in this time range to be verifiedby testing. Due to the fact that the time and cost expenseinvolved is very high, when different devices are used in thepower distribution system, selectivity limits can often beobtained from renowned equipment manufacturers only. This is

why in practice, let-through currents are often compared to theoperating or pick-up currents or, the let-through currents of theprotective devices are compared to each other.


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The prerequisite being that the relevant data is available from theequipment manufacturer and that it is analyzed thoroughly.

In this project, the selectivity was calculated with the aid of theTUV-certified SIMARIS design dimensioning software.Components were selected and dimensioned using SIMARISdesign.

Note:A network calculation should always be performed prior to anyperformance description, forming a basis thereof. Any problemsresulting from a wrong device selection/combination/arrangement will thus be detected at an early stage. Furthermore,

a network calculation provides a record of planning reliabilitywith regard to cable cross sections, voltage drop, observance ofconditions for disconnection from supply, and the gradingdistances of protective devices.


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The Main Components of Power

Distribution in Detail

Medium voltage

The medium-voltage switchgear was configured

Using the Profix 8 DH10 configuration software1 item of switchgear (load transfer from power U

2 items of load transfer via switch- disconnector

Including.


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1 item Cable panel (RK) for wall installation, as transferor feeder panel, consisting of a switch-disconnector withmanually operated snap-action drive, as three-position

switch, with the switch positions ON-OFF-GROUND andcapacitive voltage indicator, 230 V motorized drive,resistance to accidental arcs up to 20 Ka .

1 item of load transfer via circuit-breaker including 1

item Circuit-breaker panel (CB) for wall installation, astransfer or feeder panel, consisting of a circuit-breaker withmanually operated snapaction drive, 1 f-release, 1 auxiliaryswitch 2NO+2NC+2CO contacts, operating cycle counterand switch tripped signaling, plus a switch-disconnector

with manually operated snap-action drive, as threepositionswitch, with the switch positions ON-OFF-GROUND andcapacitive voltage indicator, as well as a low-voltage cubicle(height 600 mm) with universal terminal bar. Extension forauxiliary switch of the circuit breaker to 7NO+4NC+2COcontacts.


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Standard protection system: SIPROTEC 7SJ63 communication- capable(PROFIBUS), including the necessary current/voltage transformers /transducers and system-related accessories ( control fuse, contactors).

1 item of measuring equipment, designed and equipped asfollows1 itemMeasuring panel, air-insulated (ME 1), for wall installation, as meteringpanel for power consumption billing, with screwed door (front cover),consisting of a 850 mm wide panel, including mounting and wiring of a

maximum of 3 current transformers and 3 voltage transformers to beprovided by the customer. Busbar grounding via ball connection bolt, 3grounding fix points at the busbar in the air-insulated metering panel

via a ball connection bolt 25 mm.

3 items

1-pole cast-resin voltage transformer depending on the voltage level:24/12 kV 4MR1, 20/10 kV/ root3 to 100 or 110 V/root3, 20 VA Class 0.2 /50 VA Class 0.5. In case of load transfer from power supply networkoperator: current transformer designed acc. to the network operatorstechnical supply conditions.


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3 x 1 itemCast-resin current transformer 4MA7 max. 24 kV/16 kA 12 kV/20

kA, 10 VA, 1FS5 or 10P10 selectable from 60 A to 600 A, /1A or /5 A,without approval. In case of load transfer from power supplynetwork operator: current transformer designed acc. to the networkoperators technical supply conditions. 1 item Resistance toaccidental arcs up to 20 kA.

1 itemMiniature circuit-breaker for voltage transformer g with auxiliarySwitch.

1 item

3VU protective switch for voltage transformer, rated current 3 A,with auxiliary contact switch 1NO+1NC


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4 transformer outgoing feeders/feeders via circuit breakers,designed and equipped as follows

1 itemCircuit-breaker panel (CB) for wall installation, as transfer or feederpanel, consisting of a circuit-breaker with manually operatedsnapaction drive, 1 f-release, 1 auxiliary switch 2NO+2NC+2COcontacts, operating cycle counter and switch tripped signaling,plus a switch disconnector with manually operated snapaction drive,as three-position switch, with the switch positions ON-OFF-GROUND and capacitive voltage indicator, as well as a low-voltagecubicle (height 600 mm) with universal terminal bar. Motorizeddrives and protective devices are to be powered by the customersown UPS.

1 itemStandard protection system: SIPROTEC 7SJ63 communication-capable (PROFIBUS), including the necessary current/voltagetransformers / transducers and system-related accessories (controlfuse, contactors ).


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1 item

Resistance to accidental arcs up to 20 kA, 1 s in compliance with

DIN VDE 0670-6, IEC 298 with Appendix AA, PEHLA GuidelineNo.4, Criteria 1 to 6

1 item

Miniature circuit-breaker (MCB) for motorized drive or controlcircuit with auxiliary switch, 230 V AC or DC

1 item

Miniature circuit-breaker for voltage transformer g with auxiliaryswitch .

1 item

3VU protective switch for voltage transformer, rated current 3 A,with auxiliary contact switch 1NO+1NC


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Transformer4 items of transformers in cast-resin design with foil windingTransformer with aluminum foil winding, cast-resin design Rating: 800 kVA High voltage: 10 kV, AC50/LI95 (Standard) Low voltage: 0.400 kV Impedance voltage: Uz = 6% Losses: reduced losses Vector group: Dyn5 Connections: HV and LV connections at the top Volt switchover option f. HV terminals: No HV taps: 5% Frequency: 50 Hz Ambient temperature: 104.00 F Degree of protection: IP00, indoor installation Surface: Normal painting Degree of protection: IP20 Casing size for degree of protection: 4 Fire protection class: F1 Behavior in the event of fire: Low flammability, self extinguishing Test voltage / partial discharge: 2 x U


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Grounding stud with 25 mm diameter at HV and LV side,

Temperature sensor for warnings, temperature sensor for tripping,

tripping device (230 V AC, 50-60 Hz), 2 sensor loops can beconnected, incl. Transformer bedding (rail, vibration damper ).

Grounding switch 20 kV with Rodding / angle transmission and

handle, necessary control/ fusing, cable routes / cable clamping

rails and equipotential bonding bar 30 x 10 mm, with six M12Connection bolts.

Manufacturer/type: Siemens/GEAFOL 4GB

4 items of transformers casing for GEAFOL 4GB

Casing for stand-alone installation of GEAFOL cast-resin

transformers in electrical operating areas, designed for indoor

(IP20) installation.


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Busbar trunking system (connection of transformer/LVMD)Busbar trunking systems must conform to the following technical dataas a minimum requirement:

Rated operating current Ie: 1,600/1,250 A Rated operating voltage Ue: 400 V AC Degree of protection: IP34 System configuration TN-C system Voltage drop default: 6% Ambient temperature: -5 C / +40 C Rated operating current Ie: 1,600 A (horizontal) Rated operating voltage Ue: 1,000 V AC Rated short-time withstand current Icw: 80 kA/1 s Rated peak withstand current Ipk: 176 kA Number of conductors: 4

Conductor material: aluminum Surface treatment of busbar: nickel- and tin-plated Conductor cross section: 706 mm2 PE conductor cross section: 706 mm2 Color of casing: RAL 7035

Casing dimensions: W x H: 240 mm x 180 mm


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The busbar trunking system is to be delivered as a complete

unit including the required connecting and terminating

material matching the project-specific system operation.Listed unit prices must also include all costs for project

planning, documentation, the coordination of the trunking

route with other work contractors/installations and the

measurements of system modules to be taken, as well asfastening material and drawing up the final inspection

documents.

Besides the quantities listed below, the floor plans andsectional drawings of the entire system are to be considered

for project planning and drawing up a tender specification.

Manufacturer/type: Siemens, SIVACON LDA 342

50 m


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50 m

Trunking units as running meter for 1,600/ 1,250 A without tap-off

points for horizontal/ vertical installation, including single-bolted

connection and fastening brackets. Expansion joints are integratedin the trunking unit. The connections between the individual

Trunking units must be keyed so that they are mechanically secured

against reverse polarization.

4 items

Transformer connection for the above described busbar trunking

system.

Rated operating current Ie: 1,600/1,250 A,

transformer type: Siemens, GEAFOL 800 kVA.

4 itemsConnection of the low-voltage main distribution for the above

described running meter of busbar trunking system.

Rated operating current Ie: 1,600/1,250 A, LVMD type: SIVACON.


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20 itemsDirectional change pieces for above described running meter of

busbar trunking system for directional changes of 90.4 itemsFire protection S90, built into the busbar for routing it through fire

wall or fireproof ceiling. Tested acc. to DIN 4102-9, with fireresistance class S90.

Low-voltage main distribution (LVMD)1 itemLV main distribution system (Level -1 and substation in the attic).

As double-front station (GPS), depth 1,000 mm and single-frontStation (SPS) depth 600 mm. Delivery, moving into place,

mounting and installation ready for service. Instruction of operatorPersonnel.


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Plant component for general power supply (double-front station)

4 items

Transformer supply (T1 to T4) with air circuit breaker (ACB), width 800 mm, depth 500mm, height 2200 mm. The circuit-breaker panel shall be offered as a complete unit with

all panel and busbar parts and the following equipment:

1 item

SENTRON 3WL circuit-breaker for alternating current in withdraw able unit design, DIN

VDE 0660- 101,

Rated insulation voltage 1,000 V AC, 3-pole, time-discriminating grading possible, with

guide frame.

Rated current: In = 2,000 A

Rated operational voltage: Ue = 690 V AC, 50/60 Hz

Rated service short-circuit breaking capacity Ics = 65 kA = Icu at 415 V ACPermissible ambient temperature: -25 C +70 C

No derating at an ambient temperature of max. +55 C

Degree of protection IP20

Mechanical reclosing lock-out, mechanical switch-on readiness indicator with signaling

switch (1NO), auxiliary switch with 2NO and 2NC, replaceable contacts.


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Temperature monitoring integrated in the switch (measuring points: switchenvironment, main contacts, electronics in the tripping module), measured values aresupplied to superior control system by means of a COM module, fan control for the LVswitchgear. annual operation and motorized drive with mechanical and electric

impulse.Rated operational voltage: Us = 230 V AC with electronic over current release LSIN,ETU45Setting current of overload release is independent of external voltage: Ir = 40 to 100%of In in 5% Increments.Manufacturer/type: Siemens/SENTRON L.

1 itemMulti-functional measuring instrument to be integrated into switchboard withPROFIBUS-DP interface, built-in device 96 mm x 96 mm for the acquisition, directdisplay and transmission of power system parameters of a low-voltage powerdistribution system to a central data recording unit.Manufacturer/type: Siemens/SENTRON PAC3200 DP

1 itemCoupling panel (T1/T2) with ACB, width 800 mm, depth 500 mm, height 2,200 mm.The circuit-breaker panel shall be offered as a complete unit with all panel and busbararts and the following equipment:


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1 itemSENTRON 3WL circuit-breaker for alternating voltage in withdrawable-unit design, DIN VDE 0660-101Rated insulation voltage: 1,000 V AC, 3-pole, time-discriminatinggrading, with guide frame.Rated current: In = 2000 ARated operational voltage: Ue = 690 V AC, 50/60 HzRated service short-circuit breaking capacity

Ics = 65 kA = Icu at 415 V ACPermissible ambient temperature: -25 C to +70 CNo derating at an ambient temperature of max. +55 CDegree of protection IP20Mechanical reclosing lock-out, mechanical switch-on readiness

indicator with signaling switch (1NO) auxiliary switch with 2NO and2NC replaceable contacts.


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Temperature monitoring integrated in the switch (measuring

points: switch environment, main contacts, electronics in thetripping module), measured values are supplied to superior control

system by means of a COM module, fan control for the LV

switchgear. Manual operation and motorized drive with mechanical

and electric impulse.

Rated operational voltage: Ue = 230 V AC with electronic

Over current release LSIN, ETU45 independent of external voltage.

Setting current of overload release: Ir = 40 to 100% of In in 5%

Increments.

Manufacturer/type: Siemens/SENTRON 3WL


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1 itemMulti-functional measuring instrument to be integrated intoSwitchboard with PROFIBUS-DP interface, built-in device 96 mm x96 mm for the acquisition, direct display and transmission of powersystem parameters of a low-voltage power distribution system to acentral data recording unit.Manufacturer/type: Siemens/SENTRON PAC3200 DP

Totally Integrated Power by Siemens 335 itemsFeeder panel (busbar in utilities hub 1 and 2, HVAC, and safety supplycoupling panel) with ACB, width 600 mm (SPS 800 mm), depth 500mm, height 2,200 mm. The circuit-breaker panel shall be offered as a

complete unit with all panel and busbar parts and the followingEquipment.


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1 item

SENTRON 3WL circuit-breaker for alternating current in

Withdraw able unit design, DIN VDE 0660-101.Rated insulation voltage 1,000 V AC, 3-pole, time-

discriminating grading possible, with guide frame.

Rated current: In = 2000 A


Rated service short-circuit breaking capacity Ics = 65 kA

= Icu at 415 V AC

Permissible ambient temperature: -25 C to +70 C


Degree of protection IP20Mechanical reclosing lock-out, mechanical switch-on

readiness indicator with signaling switch (1NO), auxiliary

switch with 2NO and 2NC, replaceable contacts.


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Temperature monitoring integrated in the switch (measuring

points: switch environment, main contacts, electronics in the

tripping module), measured values are supplied to superiorcontrol system by means of a COM module, fan control for the

LV switchgear. Manual operation and motorized drive with

mechanical and electric impulse.

Rated operational voltage: Ue = 230 V AC with electronicOver current release LSIN, ETU45 independent of external

Voltage.

Setting current of overload release: Ir = 40 to 100% of In in 5%

increments

Manufacturer/type: Siemens/SENTRON 3WL


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1 itemMulti-functional measuring instrument to be integrated intoswitchboard with PROFIBUS-DP interface, built-in device 96 mm x96 mm for the acquisition, direct display and transmission of powersystem parameters of a low-voltage power distribution system to acentral data recording unit.Manufacturer/type: Siemens/SENTRON PAC3200 DP

4 itemsCompensation unit with dry-type capacitors and filter circuit withmain busbar. Width 800 mm, depth 500 mm, height 2,200 mm. Thefeeder panel shall be offered as a complete unit with all panel andBusbar parts and the following equipment:

In compliance with IEC 439-1; EN 60439-1; DIN VDE 0660-500 forSwitchgear.


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IEC 831; EN 60831; DIN VDE 0560-41 for capacitors. Compatibility

level Class 2 in compliance with IEC 1000-2-4.

Reactive power controller to be mounted into panel door with digital

display; current transformer connection /1A and /5 A; measured

voltage 200 V 700 V AC, 50/60 Hz; supply voltage 230 V AC, 50/60

Hz 15%; 6 controller outputs; fault signaling contact; RS232 PC

interface.


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Controller module consisting of:

Module sheet Circuit-breaker for protection of control voltage Fan

Unit Temperature controller.

Capacitor module consisting of:

Module sheet

LV HRC fuse-switch-disconnector

LV HRC fuse-link Discharge reactor / resistor

MKK power capacitors with round windings, built into aluminumcan, self-healing plastic dielectric, N2 as impregnating agent, apressure relief device, power loss < 0.5 W/kvar, measured at the

connection terminals, or < 0.3 W/kvar in the dielectric, service lifeminimum 100,000 h, permissible overload of 1.5 x IN

5 items of MKK capacitors 50 kvar Capacitor switching contactorwith auxiliary contacts.


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Choking:

Reactor with iron core suitable for fundamental and harmonic

currents, with linear inductivity up to 1.7 (7%) times the reactorcurrent rating, Ieff with temperature switch for insulation class

T40/H, Type: 4RF17: (p = 7%)

Reactive-power control unit for central reactive power compensation

in networks with a proportion > 20% of non-linear loads in the totalload and a high self-generation of harmonic oscillations to prevent

resonance between capacitors and network inductivities. With

filtering of harmonic contents of the 5th order up to approx. 30%

With filtering of harmonic contents of the 7th order up to approx. 15%

With sufficient blocking of sound frequencies > 250 Hz


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6 items

Feeder panel of LV HRC in-line disconnectors, width 1,000 mm,

depth 500 mm, height 2,200 mm. The feeder panel shall be offered asa complete unit with all panel and busbar parts and the following

equipment:

4 items

In-line fuse switch disconnectors, Size 00, with high-speed closing,M8 stud terminal, double interruption, DIN VDE 0660, IEC 947

LV HRC fuses with center indicator without weakened ceramics.

Type: 3NA7


Rated current: Ith = 160 A

Rated short-circuit current: 50 kA

3-pole transformer set, Class 1, X/1A, 2.5 VA

Manufacturer/type: Siemens/SENTRON 3NJ6

4 items

I li f i h di Si i h hi h d l i


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In-line fuse switch disconnectors, Size 1, with high-speed closing,

M12 stud terminal, double interruption, DIN VDE 0660, IEC 947

LV HRC fuses with center indicator without weakened ceramics.

Type: SENTRON 3NA7Rated operational voltage: Ue = 690 V AC, 50/60 Hz




Manufacturer/type: Siemens/SENTRON 3NJ63 items


M12 stud terminal, double interruption, DIN VDE 0660, IEC 947

LV HRC fuses with center indicator without weakened ceramics. Type: 3NA7

Rated operational voltage: Ue = 690 V AC, 50/60 HzRated current: Ith = 630 A



Manufacturer/type: Siemens/SENTRON 3NJ6


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3 itemsMetering panel for LV HRC in-line switch-disconnectors, width 400

mm, depth 500 mm, height 2200 mm.The following equipment must be provided from ONEmanufacturer! Mixing different OEM products is not permitted. Themetering panel shall be offered completely wired and with followingequipment:22 itemsMulti-functional measuring instrument for panel mounting withPROFIBUS-DP interface, built-in device 96 mm x 96 mm for theacquisition, direct display and transmission of power systemparameters of a low-voltage power distribution system to a centraldata recording unit.

Manufacturer/type: Siemens/SENTRON PAC3200 DP

Plant component for safety power supply (single front station)


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Plant component for safety power supply (single-front station)

1 itemGenerator supply with air circuit-breaker (ACB), width 800 mm, depth 600

mm, height 2,200 mm. The circuit-breaker panel shall be offered as a completenit with all panel and busbar parts and the following equipment:

1 itemSENTRON 3WL circuit-breaker for alternating current in withdraw able unitdesign, DIN VDE 0660-101, time-discriminating grading possible, with guide

frame.Rated current: In = 2,000 ARated operational voltage: Ue = 690 V AC, 50/60 HzRated service short-circuit breaking capacity Ics = 65 kA = Icu at 415 V ACPermissible ambient temperature: -25 C to +70 CNo derating at ambient temperatures up to +55 C

Degree of protection IP20Mechanical reclosing lock-out, mechanical switch-on readiness indicator withSignaling switch (1NO), auxiliary switch with 2NO and 2NC, replaceablecontacts.


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1 itemMulti-functional measuring instrument for panel mounting with

PROFIBUS-DP interface, built-in device 96 mm x 96 mm for theacquisition, direct display and transmission of power systemParameters of a low-voltage power distribution system to a central dataRecording unit.Manufacturer/type: Siemens/SENTRON PAC3200 DP

1 itemUnder voltage protection, 230/400 V, 3-pole, 2 CO contacts Type: 5TT3

3 itemsFeeder panel (busbar in utilities hub 1 and 2, and general supplycoupling panel) with ACB, width 600 mm (SPS 800 mm), depth 500mm, height 2,200 mm. The circuit-breaker panel shall be offered as acomplete unit with all panel and busbar parts and the followingequipment:


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1 item

SENTRON 3WL circuit-breaker for alternating current in

Withdraw able unit design, DIN VDE 0660-101, rated insulation

Voltage Ui = 1,000 V AC, 3-pole, time-discriminating grading possible,

With guide frame.

Rated current: In = 2,000 A


Rated service short-circuit breaking capacity Ics = 65 kA = Icu at 415 V

Permissible ambient temperature: -25 C to +70 C


Degree of protection IP20

Mechanical reclosing lock-out, mechanical switch-on readinessindicator with signaling switch (1NO), auxiliary switch with 2NO and

2NC, replaceable contacts.


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Temperature monitoring integrated in the switch (measuring points:switch environment, main contacts, electronics in the trippingmodule), measured values are supplied to superior control system bymeans of a COM module, fan control for the LV switchgear. Withelectronic tripping unit LSIN , ETU 45Manufacturer/type: Siemens/SENTRON 3WL

1 item

Multi-functional measuring instrument for panel mounting withPROFIBUS-DP interface, built-in device 96 mm x 96 mm for theacquisition, direct display and transmission of power systemparameters of a low-voltage power distribution system to a centraldata recording unit.


1 item


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1 item

Under voltage protection, 230/400 V, 3-pole, 2 CO contacts Type: 5TT3

2 items

Feeder panel for LV HRC in-line switch-disconnectors, width 1,000mm, depth 600 mm, height 2,200 mm. The feeder panel shall be

offered as a complete unit with all panel and busbar parts

and the following equipment:

4 itemsIn-line fuse switch disconnectors, Size 00, with high-speed closing,

M8 stud terminal, double interruption, DIN VDE 0660, IEC 947.

LV HRC fuses with center indicator without weakened ceramics. Type:

3NA7





i


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4 items


M12 stud terminal, double interruption, DIN VDE 0660, IEC 947.


3NA7



Rated short-circuit current: 50 kA3-pole transformer set, Class 1, X/1A, 2.5 VA

3 items

In-line fuse switch disconnectors, Size 3, with high-speed closing, M12

stud terminal, double interruption, IEC 947, DIN VDE 0660.


3NA7


Rated current: Ith = 630 A


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Rated short-circuit current: 50 kA3-pole transformer set, Class 1, X/1A, 2.5 VA

Manufacturer/type: Siemens/SENTRON 3NJ62 itemsMetering panel for LV HRC in-line switch-disconnectors, width 400mm, depth 600 mm, height 2200 mm. The metering panel shall beOffered completely wired and with following equipment:11 itemsMulti-functional measuring instrument for panel mounting withPROFIBUS-DP interface, built-in device 96 mm x 96 mm for theacquisition, direct display and transmission of power systemparameters of a low-voltage power distribution system to a centraldata recording unit.



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Power management

1 item Power management system The above described power supply

system must be equipped with a power management system.The leading product is Siemens.

Measurements/transmission from the switchgear rooms / panels:

In each of the switchgear rooms or in process, measured values and

status will be collected via communication capable circuit-breakers,

multi-functional measuring instruments or distributed I/Os and

transmitted to a programmable logic controller (SIMATIC S7) via

PROFIBUS-DP or direct interfacing. This controller must be designed

with the capacity to generate mean values of measurements, perform

message acquisitions, and store measured values and messages

temporarily. If communication to the operator control and monitoring

level has broken down, energy data are buffered, so that they can be

transmitted when the connection is reestablished.

C l l i li i PC


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Central control room visualization on a PC:The server shall be installed in a central room. The servercommunicates with all PLC units (SIMATIC S7) in the switchgear

rooms via an OWG ring circuit, it serves for display of all informationrendered from the switchgear rooms, for measured value, messageand load management parameterization as well as for data archiving.Client applications on distributed workstations access this server.

In a control center the current status of power distribution isdisplayed. Besides electricity, other energy types, such as gas,compressed air, district heating etc., may also be integrated. Energyquantities, limit violations, individual measured values and switchpositions are displayed inform of graphics. Electrical switches can beremote-controlled directly from the operator interface. All switchingoperations, whether initiated from the control center or directlyon site, as well as limit violations of measured values are recorded

With date and time and archived.


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switching cycle diagram. Measured value acquisition is performed

continuously and compressed and archived as mean values in

adjustable increments of 1 to 60 minutes. Values are displayed

graphically as load curves. All archived data are available for analysis,

export and reporting. A cost management function is available as to

map the cost center structure, energy types, consumption values, costs

and billing rates. Power distribution is visualized by means of

hierarchically structured process images. A plant overview functions asstart screen to access the individual plant component images.

Messages and faults/malfunctions can be displayed in the respective

component images or in a specific diagnostic image. In addition, there

are curve diagrams and tables/statistics.

St t d d l i iti


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Status and measured value acquisition

Integration of all operating states / measured values of the following

plant components:

Medium-voltage switchgear

Distribution transformers

Low-voltage main distribution systems

Sub distribution systems

UPS Standby power supply

Additional components for communication

For networking the different components of the power management

system and for communication with other components, the following

equipment should be considered:

Industrial Ethernet LAN Switch SCALANCE X208 Profibus repeater

Modbus gateway (transformer / diesel generator)


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Distribution board max. 160 ADistribution board for surface-mounting with recessed mounting frame, Height 950 mm, width 550 mm, depth 140 mm, TTA acc. to DIN EN 60439-1

(VDE 0660-500) and DIN EN 60439-3 (DIN VDE 0660-504) Quick-assembly kits in full cabinet height Assembly kits for switches and installation equipment Molded-plastic covers with quick-acting locks Modular system: distribution board as a complete unit Rated current: 160 A

Rated voltage: 690 V AC Degree of protection: IP43 Safety class 2 Mounting rail center spacing: 125/150 mm Material: sheet steel, electroplated and powder-coated Color: light gray RAL 7035 AP

Door to be hinged from the left or right; door opening angle 170 Delivery: complete case with door / double door and espagnolette lock One cable entry opening with flange at top and bottom per panel width,

with integrated slabs for mounting assembly kits.

d h


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15 items equipped with:

6 items Circuit-breaker, 1-pole 16 A, C, 10 kA, 1NO+1NC, type 5SY


1 item Circuit-breaker, 3-pole 32 A, C, 10 kA, 1NO+1NC, type 5SY

2 items Circuit-breaker, 1-pole 16 A, B, 10 kA, 1NO+1NC, type 5SY

6 items Residual-current-operated circuit-breaker (RCCB), 2-pole, 25

A /30 mA, type 5SM1

3 items RCCB, 4-pole, 25 A /30 mA, type 5SM13 items RCCB, 4-pole, 63 A /30 mA, type 5SM1

1 item Switch, 3-pole, 230 V, 160 A, type 5TE1

3 items MINIZED switch-disconnector, 3-pole, max. 63 A, type 5SG7

1 item Overvoltage protection, 4-pole, consisting of a lightningcurrent arrester (1/B) and surge arrester (2/C).

Di t ib ti b d 6 A ( tiliti h b f GPS d SPS)


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Distribution board max. 630 A (utilities hubs for GPS and SPS)Distribution board in f loor-mounted design Height 1950 mm, width 750 mm, depth 320 mm TTA acc. to DIN EN

60439-1 (VDE 0660-500) and DIN EN 60439-3 (DIN VDE 0660-504) Quick-assembly kits in full cabinet height (SMB) Assembly kits for switches and installation equipment Molded-plastic covers with quick-acting locks Modular system: distribution board as a complete unit Rated current: 630 A Rated voltage: 690 V AC Degree of protection: IP43 Safety class 1 Mounting rail center spacing: 150 mm Material: sheet steel, electroplated and powder-coated Color: light gray RAL 7035 Door to be hinged from the left or right; door opening angle 170 Delivery: Complete case with door / double door and espagnolette lock One cable entry opening with flange at top and bottom per panel

width, with integrated slabs for mounting assembly kits.

22 items (GPS) equipped with:


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22 items (GPS) equipped with:






24 items RCCB, 2-pole, 25 A /30 mA, type 5SM1


1 item Molded-case circuit-breaker (MCCB), 3-pole, 230 V, 400 A,

type SENTRON 3VL

2 items MINIZED switch-disconnector, 3-pole, max. 63 A, type

5SG7

1 item Overvoltage protection, 4-pole, consisting of a lightning

Current arrester (1/B) and surge arrester (1/C)

i (SPS) i d i h


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22 items (SPS) equipped with:




12 items Circuit-breaker, 1-pole 16 A, B, 15 kA, 1NO+1NC,

type 5SY



2 items RCCB, 4-pole, 63 A /30 mA, type 5SM1

1 item MCCB, 3-pole, 230 V, 400 A, type SENTRON 3VL

2 items MINIZED switch-disconnector, 3-pole, max. 63 A, type5SG7

1 item Overvoltage protection, 4-pole, consisting of a lightning

current arrester (1/B) and surge arrester (1/C).


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Performance Specification of Power

Distribution (Excerpt)The following specification of work and services describes the power

supply from the medium-voltage level (rated voltage 10 kV) to the

final circuit.

A medium-voltage switchgear plant is to be erected According to the supply conditions imposed by the responsible

power distribution network operator.

In order to build a fully selective power system,

Specifications made by the network operator in terms of gradingtimes must be observed


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Medium voltage is fed into the system by means of ring maincables.

The switchgear for medium-voltage transfer is to be delivered as a6-panel, gas-insulated (SF6) station (ring, ring, metering, CB loadtransfer, 2 x CB transformer outgoing feeder). It must be possible toextend the station by one feeder panel without redesigning workbeing involved and within a time frame of a few hours.

The medium-voltage substation consists of 3 panels (feeding viadisconnectors, 2 x CB transformer outgoing feeder) Thetransformers are to be designed as low-loss cast-resin transformers

with a performance enhancement option by using tangential fans(50%).

The LVMD system, the busbars and the system oftransformer/busbar/LVMD is to be implemented as a type-testedassembly (TTA).


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All feeder and coupling switches are to be delivered as aircircuit-breakers(ACB) in identical current ratings with guide frame and

LSIN releases. The rated current of the release block must be adaptedto requirements by means of a rating plug (without replacing themeasuring transducer set).

Feeders with LV HRC fuses must be measured in 3 phases and theirpower consumption must be allocated to the appropriate cost centers

by employing a power management system. Meters for these load circuits shall be placed in such a way that they

can clearly be allocated to the respective load circuit.

The compensation unit is to be supplied as a choked system.


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General pre-conditions

All works are to be announced and registered approx. 4 weeks prior to

their start and must be agreed upon with the user/constructionmanagement/customer. The specified switchgear dimensions are

maximum dimensions.

They are binding. Prior to delivery, the contractor shall take

measurements of local conditions (openings And doors for moving

the switchgear in, frame dimensions of switchgear, possible

transportation units, weights, routes ) in coordination with the

construction management.

The delivery of switchgear components shall also cover all costs

required for testing and acceptance (power supply network operator,experts..) and additional services.

Th l di d t bi di


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The leading products are binding.The protective devices put out to tender are matched toone another regarding their short-circuit behavior / characteristiccurves / shutdown behavior. For this reason, all

installation devices must be procured from one supplier.Protective technology, reliability of supply as well as anypossible power feedback into the system in case of anexisting standby power network is to be agreed with thenetwork operator / public testing and inspection authorities,Association of Property Insurers etc. Any works outsidethis industry, if not explicitly mentioned herein, arenot part of this performance specification. For the duration

of constructions, the contractor shall name a responsiblecontact person for every work contract section /installationwho shall be in charge of coordination and clarification ofquestions. Participation in construction-related meetings iscompulsory. If the contractor employs subcontractors, theyshall be named in the tender. The contractor providescoordination, responsibility for and representation of his

subcontractors (construction-related meetings, workflow,schedules ). The contractor, and not his subcontractors,shall be the sole point of contact and partner in negotiationsfor the customer.


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Schedule

To ensure erection and mounting procedures running on schedule,

the contractor must adjust his capacities to the specific mountingsituation. Based upon the corner dates listed below, the contractor is

required to draw up a detailed time schedule which describes the

precise erection and mounting procedures. The contractor must

Proactively lead all coordinating talks required in this context with the

various developer representatives, representatives of public

authorities and any other performing companies involved in the

construction process. The detailed time schedule must be handed

over to the developers representative 4 weeks after the contract has

been awarded, at the latest. The time schedule becomes part of thecontract and must strictly be complied with. This time schedule must

Be actively managed during construction, and, if necessary, adjusted

to a changed situation in good cooperation with the parties involved.

Proof of selectivity (medium voltage utilities substation to


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Proof of selectivity (medium-voltage utilities substation to

final circuit)

Computational proof for the selected protective devices and cable

cross sections including an assessment of selectivity for the entire

supply network (MV branch circuit to final circuit) including energy

balance for all of the connected loads (switchgear cabinets for the

different supply subsections, e.g. electrical installations, heating,

ventilation, air conditioning, lighting ).Data on network configuration (1-pole single-line diagrams),cable

lengths and load data are provided by the construction management.

The outgoing feeder terminals of the above mentioned main

distribution boards will be regarded as the interface for selectivityassessment.


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Relevant power supply system data shall be handed over to the third-

party works suppliers in writing. The point of reference is the feeder

terminal to the distribution boards for the different supplysubsections.

The proof of selectivity, being the fundamental basis of the

implementation planning for mounting the electrical installation,

shall be handed in, at the latest, when the implementation plans ofthe main switchgear are submitted for the purpose of obtaining a

mounting permit. This proof must include the following:

Energy balance in form of a table

1-pole single-line diagram with device parameters (for power

sources, protective devices, cable routes).

1 pole single line diagram with load f low and voltage drop


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1-pole single-line diagram with load f low and voltage droprepresentation for each circuit

1-pole single-line diagram with representation of the minimum

and maximum short-circuit loads I2t characteristic curve diagrams of all circuit-breakers and the

largest LV HRC outgoing fuses for each switchgear station andnetwork (these curves must show the circuit-breaker parametersthat have actually been set)

A table of all protective devices including setting ranges and setvalues (will also be used for subsequent commissioningdocumentation)

This proof must be produced using an approved, certified IT tool.

A k l l i h ld l b f d i


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A network calculation should always be performed prior to any

performance specification, forming a basis thereof. Any problems

resulting from a wrong device selection/ combination/arrangementill thus be detected at an early stage. Furthermore, a network

calculation provides a record of planning reliability with regard to

cable cross sections, voltage drop, observance of conditions for

Disconnection from supply, and the grading distances of protective

devices.

Selectivity is required on the basis of the following standards,

regulations and recommendations:

DIN VDE 0100-718 Erection of low-voltage installations

Requirements for special installations or locations Part 718:Installations for gathering of people(previously DIN VDE 0108)


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DIN VDE 0100-710 Erection of low-voltage installations Requirements for special installations or locations Part 710:

Medical locations (previously DIN VDE 0107) Safety Rule of the Nuclear Safety Standards Commission (KTA

3705) Switchgear, Transformers and Distribution Networks forthe Electrical Power Supply of the Safety System in NuclearPower Plants.

Increasing (global) customer demand for switchgear with a highdegree of supply reliability.

M di l i h


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Medium-voltage switchgearIn accordance with the Application Manual, Basic Data and PreliminaryPlanning, Section 5.1 and Part 2 of the Application Manual, Draft Planning,

Section 3.4 Medium-Voltage Switchgear. An up-to-date template for thetender specification text can be obtained on the Internet at:

Note: Pressure calculation for internal faultsThis proof is sometimes a mandatory requirement stipulated by the powerutility. A calculation gives information regarding pressures produced in case

of accidental arcs and provides the resulting dimensions of openings in thehell necessary for pressure relief (which is important when the switchgearRoom should be located somewhere inside the building, because pressurerelief openings would then be problematic).

In accordance with Application Manual, Basic Data and Preliminary

planning, Section 5.1.3 Pressure Development in Switchgear Rooms.


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Busbar trunking system (connection of transformer/LVMD)

In accordance with the Application Manual, Basic Data and

Preliminary Planning, Section 5.4 Busbar Trunking Systems and Part2 of the Application Manual, Draft Planning, Chapter 7 Busbar

Trunking Systems, Cables and Wires.

Note:

Excerpt from the tender specification text:

Busbar trunking systems must be delivered and mounted as a system

tested from end to end (connection of transformer/ busbar/LVMD),

as type-tested low-voltage switchgear assemblyTTA ready for

Connection.

( )


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Preliminary Planning, Section 5.4 Busbar Trunking Systems andPart 2 of the Application Manual, Draft Planning, Chapter 7 Busbar


Note:


Busbar trunking systems must be delivered and mounted as a

System tested from end to end (connection of transformer/

busbar/LVMD), as type-tested low-voltage switchgear assembly

TTA ready for Connection.

b k ( f f )


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Preliminary Planning, Section 5.4 Busbar Trunking Systems and Part2 of the Application Manual, Draft Planning, Chapter 7 Busbar


Note:


Busbar trunking systems must be delivered and mounted as a system

tested from end to end (connection of transformer/busbar/LVMD),

As type-tested low-voltage switchgear assemblyTTA ready for

Connection.

Besides the quantities listed below, the floor plans and sectional


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Besides the quantities listed below, the floor plans and sectional

drawings of the entire system are to be considered for project

planning and drawing up a tender specification.

Distribution boards


Preliminary Planning, Section 5.5 Subdistribution Systems and

Part 2 of the Application Manual, Draft Planning, Section 8.4Small Distribution Boards and Wall- or Floor-

Mounted Distribution Boards.

Distribution boards are divided as follows:

Distribution boards up to 160 A Distribution boards up to 630 A

Standby power supply


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Standby power supply


Preliminary Planning, Section 5.7 Standby Power Supply and Part 2 of

the Application Manual, Draft Planning,

Note:

Container solutions

are space saving their assembly is independent of the buildingconstruction progress

they are quickly rigged up

they are an all-in-one solution which has solved all interfacingproblems (little harmonization with the building shell required)

they are economical, in particular as a rooftop version (shortexhaust gas piping, low noise pollution )

they can be easily maintained, or replaced, if necessary.


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Uninterruptible power supply (UPS)


Preliminary Planning, Section 5.6 Uninterruptible Power Supply(UPS) and Part 2 of the Application Manual, Draft Planning,

Section 5.2 Basis for the Use of UPS.

Planning of the Power Distribution – SIEMENS

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