SMA MVPS 500SC-JP, MVPS 630SC-JP, MVPS 800SC-JP, MVPS 1000-1SC-JP, MVPS 1000-2SC-JP Transportation And Installation Requirements

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SMA

Transportation and Installation Requirements

MEDIUM VOLTAGE POWER STATION 500SC-JP /
630SC-JP / 800SC-JP / 1000-1SC-JP /
1000-2SC-JP / 1250SC-JP / 1600SC-JP /
2000SC-JP

MVPS22JP-TA-en-20 | Version 2.0ENGLISH

Table of Contents

1 Information on this Document..................................................................................................... 3

1.1 Validity ............................................................................................................................................................. 3

1.2 Target Group ................................................................................................................................................... 3

1.3 Additional Information..................................................................................................................................... 3

2 Product Overview ........................................................................................................................ 4

2.1 Design of the MV Power Station .................................................................................................................... 4

2.2 Option code..................................................................................................................................................... 5

2.3 Scope of Delivery ............................................................................................................................................ 9

2.4 External dimensions and weights ................................................................................................................... 11

3 Transport and Mounting.............................................................................................................. 13

3.1 Transport by truck, train or ship ...................................................................................................................... 13

3.2 Storage............................................................................................................................................................. 14

3.3 Requirements and Ambient Conditions .......................................................................................................... 14

3.4 Unloading ........................................................................................................................................................ 14

4 Information for Installation ......................................................................................................... 19

4.1 Minimum Clearances ...................................................................................................................................... 19

4.2 Supply Air and Exhaust Air............................................................................................................................. 19

4.3 Installation........................................................................................................................................................ 21

4.3.1 Design of the System with MV Power Station ................................................................................................ 21

4.3.2 Support surface ................................................................................................................................................ 22

4.3.3 Pea gravel ground ........................................................................................................................................... 22

4.3.4 Weight load ..................................................................................................................................................... 22

4.3.5 Mounting options ............................................................................................................................................. 22

4.3.5.1 Flagstones........................................................................................................................................................ 23

4.3.5.2 Pile-driven steel pillars ..................................................................................................................................... 23

4.3.5.3 Concrete pillar................................................................................................................................................. 24

4.3.5.4 Strip foundations ............................................................................................................................................. 24

4.3.5.5 Foundation plate ............................................................................................................................................. 25

4.3.6 Erecting the service platforms.......................................................................................................................... 26

4.3.7 Recesses in the Support Surface ..................................................................................................................... 28

4.4 Oil spill containment........................................................................................................................................ 31

4.4.1 Oil Spill Containment for the MV Power Station with One Inverter ............................................................. 31

4.4.2 Oil Spill Containment for the MV Power Station with Two Inverters ............................................................ 32

5 Electrical Connection .................................................................................................................... 34

5.1 Grounding Concept ........................................................................................................................................ 34

5.2 Cable Requirements ........................................................................................................................................ 34

5.3 Q at Night........................................................................................................................................................ 35

6 On-Site Services............................................................................................................................ 37

Table of Contents

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-202

1 Information on this Document

1.1 Validity

This document is valid for the following device types of the MVPowerStation with the inverters of the series
SunnyCentral 500CP-JP/ 630CP-JP/ 800CP-JP / 1000CP-JP:

• Medium Voltage Power Station 500SC-JP (MVPS 500SC-JP)

• Medium Voltage Power Station 630SC-JP (MVPS 630SC-JP)

• Medium Voltage Power Station 800SC-JP (MVPS 800SC-JP)

• Medium Voltage Power Station 1000-1SC-JP (MVPS 1000-1SC-JP)

• Medium Voltage Power Station 1000-2SC-JP (MVPS 1000-2SC-JP)

• Medium Voltage Power Station 1250SC-JP (MVPS 1250SC-JP)

• Medium Voltage Power Station 1600SC-JP (MVPS 1600SC-JP)

• Medium Voltage Power Station 2000SC-JP (MVPS 2000SC-JP)

The production version is indicated on the type label.

Illustrations in this document are reduced to the essential and may deviate from the real product.

1.2 Target Group

The tasks described in this document must only be performed by qualified persons. Qualified persons must have the
following skills:

• Knowledge of how the product works and is operated

• Training in how to deal with the dangers and risks associated with installing and using electrical devices and
systems

• Training in the installation and commissioning of electrical devices and systems

• Knowledge of all applicable standards and directives

• Knowledge of and adherence to this manual and all safety precautions

1.3 Additional Information

Links to additional information can be found at www.SMA-Solar.com.

1 Information on this Document

SMA Solar Technology AG

Transportation and Installation Requirements 3MVPS22JP-TA-en-20

2 Product Overview

2.1 Design of the MVPowerStation

Figure 1: Design of the MVPowerStation

Position Designation Explanation

A Protective roof The roof protects the devices from direct solar irradiation.

B Service platform The elevated position of the service platform facilitates opera-

tion of the devices and is part of the cooling concept of the
MVPowerStation.

C MV transformer The MV transformer converts the inverter output voltage to the

voltage level of the medium-voltage grid.

D Medium-voltage switchgear* The medium-voltage switchgear disconnects the MV trans-

former from the medium-voltage grid.

E Communit*

or

Control device for cascade control*

The Communit contains control and communication devices.

The order option "Cascade control" allows for staggered recon­nection of several medium-voltage switchgears after a grid fail­ure or maintenance work.

F Transformer for internal power supply* The transformer for internal power supply provides the supply

voltage for the MVPowerStation and its devices. It is con­nected to the low-voltage side of the MV transformer (see cir­cuit diagram).

2Product Overview

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-204

Position Designation Explanation

G Station subdistribution The station subdistribution contains fuse and switching elements

for the supply voltage.

H Sunny Central CP-JP The SunnyCentral is a PV inverter that converts the direct cur-

rent generated in the PV arrays into grid-compliant alternating
current.

* optional

2.2 Option code

The MVPowerStation is available in different power classes. Depending on the specific power class, the
MVPowerStation can be equipped with different inverters. An MVPowerStation can only be equipped with two
inverters of the same device type.

MVPowerStation Available inverters

MVPowerStation 500SC-JP 1 x SC 500CP-JP

MVPowerStation 630SC-JP 1 x SC 630CP-JP

MVPowerStation 800SC-JP 1 x SC 800CP-JP

MVPowerStation 1000-1SC-JP 1 x SC 1000CP-JP

MVPowerStation 1000-2SC-JP 2 x SC 500CP-JP

MVPowerStation 1250SC-JP 2 x SC 630CP-JP

MVPowerStation 1600SC-JP 2 x SC 800CP-JP

MVPowerStation 2000-SC-JP 2 x SC 1000CP-JP

You can use the option code to select an MVPowerStation configuration which is tailored specifically to your project.
However, not all order options can be combined with each other. Consult your SMA contact person if you have any
questions.

Order option 0 1 2 3 4 5 6 7 8 9 10 Description

Power class 0 500kVA

1 630kVA

2 800kVA

4 1000kVA with 1 SC

5 1000kVA with 2 SC

6 1250kVA

7 1600kVA

9 2000kVA

2 Product Overview

SMA Solar Technology AG

Transportation and Installation Requirements 5MVPS22JP-TA-en-20

Order option 0 1 2 3 4 5 6 7 8 9 10 Description

Nominal voltage 1 10kV

2 11kV

3 12kV

4 12.5kV

5 13.2kV

6 13.8kV

7 15kV

8 20kV

9 22kV

A 23kV

B 30kV

C 33kV

Nominal fre­quency

0 50Hz

1 60Hz

Transformer vector
group

0 Dy11*

1 Dy11y11**

2 YNd11*

3 YNd11d11**

MV transformer 2 Mineral oil with hermetical

protection

3 Organic oil with hermetical

protection

Oil spill contain­ment

0 Without

1 With (supplied as a separate

accessory)

Medium-voltage
switchgear

0 Without

2 Ring (3-field), transformer

panel with 24kV circuit
breaker

4 Ring (3-field), transformer

panel with 36kV circuit
breaker

2Product Overview

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-206

Order option 0 1 2 3 4 5 6 7 8 9 10 Description

Accessory for
medium-voltage
switchgear

0 Without

3 Cascade control (control unit

for staggered reconnection of
the medium-voltage
switchgears via the center ca­ble panel following a grid fail­ure)

4 Spatial separation (between

medium-voltage switchgear
and low-voltage devices)

5 Cascade control and spatial

separation

Low-voltage trans­former

0 Without

1 6kVA with EMC filtering de-

vice

Low-voltage meter 0 Without

1 For inverter (measurement via

two current transformers and
two voltage converters per in­verter)

2 For transformer for internal

power supply (measurement
via four combined instrument
transformers)

3 For inverter and transformer

for internal power supply

Uninterruptible
power supply

0 Without

* For the MVPowerStation 500SC-JP / 630SC-JP / 800SC-JP / 1000-1SC-JP

** For the MVPowerStation 1000-2SC-JP / 1250SC-JP / 1600SC-JP / 2000SC-JP

Continuation of the Option Code

Order option 11 12 13 14 15 16 17 18 19 20 Description

Packaging 1 Sea freight

Communit 0 Without

1 With

Ambient temperature 0 −25°C to +40°C

1 −25°C to +50°C / +55°C with

derating (achieved with addi­tional fans)

2 Product Overview

SMA Solar Technology AG

Transportation and Installation Requirements 7MVPS22JP-TA-en-20

Order option 11 12 13 14 15 16 17 18 19 20 Description

Installation altitude 0 0m to 1000m

1 1001m to 2000m

2 2001m to 3000m

Environment 0 Standard

1 Protection from chemically active

environment, for example, sea
salt (achieved with special paint
on the MV transformer and resin
casting of the transformer for in­ternal power supply)

3 Protection from chemically active

environment and dust (supple­mentary dust protection of the
medium-voltage switchgear and
the transformer for internal power
supply)

Additional equipment 0 Without

1 Seismic and storm qualification

(strengthening of the container
design and delivery of special
mounting feet for seismic activity
and wind speeds of up to 56m/
s)

AC contactor 0 Without

1 With (additional voltage and fre-

quency monitoring relay on the
low-voltage side)

Language EN English

Yes Japanese

2Product Overview

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-208

2.3 Scope of Delivery

Scope of Delivery of the Station Container

The scope of delivery of the station container is located in the compartment of the medium-voltage switchgear.

Figure 2: Scope of delivery of the station container

Position Quantity Designation

A 1 MVPowerStation

B 4 Support foot for the container corners

C 2 Support foot for the container sides

D 10 Support foot for the service platform

E 8 Protective roof bracket

F 1 Oil spill containment with oil drain valve*

G 1 Spare paint RAL 7004 for the container

H 1 Documentation, circuit diagram

* Optional Depending on the production version, the oil drain valve is mounted or not.

Scope of Delivery of the Medium-Voltage Switchgear

The scope of delivery of the medium-voltage switchgear is located in the compartment of the medium-voltage
switchgear.

Figure 3: Scope of delivery of the medium-voltage switchgear

Position Quantity Designation

A 1 Actuation lever for grounding switch

2 Product Overview

SMA Solar Technology AG

Transportation and Installation Requirements 9MVPS22JP-TA-en-20

Position Quantity Designation

B 1 Actuation lever for disconnection unit, load-break switch and circuit

breaker

C 1 Double-bit key for the medium-voltage switchgear

D 1 Magnetic sign "Do not switch"

E 1 Magnetic sign "Earthed"

F 1 Documentation for the medium-voltage switchgear

Scope of Delivery of the Inverter

The scope of delivery of the inverter is located in the connection area of the inverter. The indicated number of the
individual components differs depending on the number of mounted inverters in the MVPowerStation.

Figure 4: Scope of delivery of the inverter

Position Quantity Designation

A 1/2 LV/HRC fuse extractor

B 1/2 Non-woven abrasive

C 1/2 Desiccant bag

D 51/105* Bolt

54/108**

E 51/105* Nut

54/108**

F 102/210* Fender washer

108/216**

G 102/210* Spring washer

108/216**

H 1/2 Inverter key

I 80/160 Cable tie

K 1/2 Cable support sleeve (15mm to 16mm)

2Product Overview

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2010

Position Quantity Designation

L 1/2 Cable support sleeve (17mm)

M 5/10 Cable support sleeves (9.5mmto13mm)

N 1/2 Touch-up stick RAL 7004

O 1/2 Touch-up stick RAL 9016

P 1 Circuit diagram

* With transformer for internal power supply

** Without transformer for internal power supply

2.4 External dimensions and weights

1550 mm

2438 mm

2250 mm

2726 mm 1480 mm

723 mm

6058 mm

755 mm

Figure 5: Dimensions of the MVPowerStation

Dimensions of the MVPowerStation without Platforms and Support Feet

Width Height Depth Weight

MVPowerStation 500SC-JP / 630SC-JP /
800SC-JP / 1000-1SC-JP

6058mm 2591mm 2438mm < 10 t

MVPowerStation 1000-2SC-JP / 1250SC­JP / 1600SC-JP / 2000SC-JP

6058mm 2591mm 2438mm < 14 t

2 Product Overview

SMA Solar Technology AG

Transportation and Installation Requirements 11MVPS22JP-TA-en-20

Dimensions of the MVPowerStation with platforms and support feet

Width Height Depth Weight

MVPowerStation 500SC-JP / 630SC-JP /
800SC-JP / 1000-1SC-JP

6938mm 2941mm 5598mm < 10 t

MVPowerStation 1000-2SC--JP / 1250SC­JP / 1600SC-JP / 2000SC-JP

6938mm 2941mm 5598mm < 14 t

The weight of the MVPowerStation may vary below the indicated weight depending on the selected voltage and
power classes.

2Product Overview

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2012

3 Transport and Mounting

3.1 Transport by truck, train or ship

The dimensions and shape of the MVPowerStation correspond to those of an ISOcontainer. This means that it can be
loaded, secured for transport, transported and installed quickly and easily. The MVPowerStation can be transported
by ship, truck or train. A truck 16m long, 2.7m wide, 5m high, and with a total weight of 50t, is capable of
transporting up to twoMVPowerStations.

If transported by train, the MVPowerStation must be loaded on railroad cars with shock absorbers.

During transport and unloading, the station container paint may become damaged. Paint damage does not impair the
function of the MVPowerStation, but must be repaired by the customer using the spare paint supplied within three
weeks.

For transportation by truck, train or ship, the MVPowerStation must be secured at least at all four lower corner
castings. This can be done by various methods, depending on the fastening system of the means of transportation. The
most common methods are described below.

Twistlock

• The MVPowerStation is set down on the locking mechanisms.
By turning the twistlock, an interlocking is made.

Pinlock

• The MVPowerStation is set down on the locking mechanisms.
Any slippage of the load is prevented by inserting the pinlock.

3 Transport and Mounting

SMA Solar Technology AG

Transportation and Installation Requirements 13MVPS22JP-TA-en-20

3.2 Storage

For storage of the MVPowerStation note the following points:

• Do not place the MVPowerStation on an unstable, uneven surface.

• Once the MVPowerStation has been set down on the surface, do not attempt to adjust its position by pulling or
pushing.

• Prior to storage, ensure that the doors of the MVPowerStation are tightly closed.

3.3 Requirements and Ambient Conditions

☐ The maximum permissible gradient of the access road is 8%.

☐ During unloading, a distance of at least 2m to neighboring obstacles must be observed.

☐ The access roads and the unloading site must be designed to accommodate the length, width, height, total weight

and curve radius of the truck.

☐ Transport must be carried out by truck with air-sprung chassis.

☐ The unloading site for the crane and truck must be firm, dry and horizontal.

3.4 Unloading

The MVPowerStation is unloaded by a crane. To unload the MVPowerStation, the crane requires a swivel radius of
at least 6m. To facilitate unloading, we recommend maintaining a distance of at least 2m to neighboring obstacles
such as fences or trees.

Depending on the on-site conditions, further measures may be necessary (for example, when installation is to take
place near overhead lines). The conditions at the unloading site must have been thoroughly checked before transport.

Figure 6: Swivel radius for unloading the MVPowerStation

3Transport and Mounting

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2014

The MVPowerStation is lifted by the four corner castings using a container crossbeam with chain sling. It can be lifted
by the top or bottom corner castings. The angle between chain sling and the ground must be greater than 45°.

Figure 7: Attachment of the support feet during unloading of the MVPowerStation at the mounting location

Attaching the Support Feet During Unloading

The MVPowerStation must be mounted on six support feet. The support feet can be found in the accessory kit in the
medium-voltage switchgear compartment. The support feet must be fitted to the MVPowerStation before it is placed
on the foundation. To attach the support feet, open-end wrenches with a width across flats of 30mm and 36mm are
required.

Attaching the support feet of the MVPowerStation

To attach the support feet to the MVPowerStation, you can set the MVPowerStation down for a short while on
temporary platforms (for example, crane support plates). For the assembly of the support feet, the platforms must
be at least 450mm high.

The space underneath the MVPowerStation serves several purposes and must not be blocked by any object other
than the oil spill containment:

• Escape of pressure from the medium-voltage switchgear in case of electric arcs

• Easy insertion of cables

• Protection from minor flooding

• Heat dissipation of the inverters

The clearance between the mounted MVPowerStation and the ground must be at least 350mm.

3 Transport and Mounting

SMA Solar Technology AG

Transportation and Installation Requirements 15MVPS22JP-TA-en-20

If the mounting location is subject to strong winds (from 32m/s to 40m/s), the support feet should be anchored to the
foundation. For a wind speed of 40 m/s to 56 m/s, it is recommended to choose the optional equipment of the
"Earthquake and storm qualification" order option. With this option, the container is reinforced and delivered with
special support feet. When mounting and installing the MVPowerStation, observe all regulations applicable at the
installation site.

Figure 8: Position of the support feet

3Transport and Mounting

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2016

Figure 9: Dimensions of the support feet

Position Designation

A Outside standard support foot with a height of 350mm (adjustable height ±20mm)

B Central standard support foot with a height of 350mm (adjustable height ±20mm)

C Outside support foot* with a height of 368mm (non-adjustable height)

D Central support foot* with a height of 368mm (non-adjustable height)

* For the order option "Earthquake and storm qualification"

• The outside support feet are connected to the

MVPowerStation via a twistlock.

2

1

3 Transport and Mounting

SMA Solar Technology AG

Transportation and Installation Requirements 17MVPS22JP-TA-en-20

• The central support feet must be fixed to the MVPowerStation
using nuts. Ensure that the support feet are aligned with their
base plates flush with the MVPowerStation. The stud bolt of
the central support foot must point outwards.

• Any unevenness of the support surface up to ±20mm can be
compensated with the standard support feet.

3Transport and Mounting

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2018

4 Information for Installation

4.1 Minimum Clearances

Observe the following minimum clearances to ensure trouble-free operation of the MVPowerStation. The minimum
clearances are required to ensure trouble-free installation of the MVPowerStation and easy replacement of the
devices (for example, with a forklift) during service and maintenance. In addition, locally applicable regulations must
be observed.

Figure 10: Minimum clearances

Minimum clearances

A B C

(Medium-volt­age side)

D

(Inverter side)

Recommended minimum clearances
for service assignments

6000mm 6000mm 3000mm 1000mm

Minimum clearances for trouble-free
operation

2000mm 2000mm 2000mm 1000mm

The service platforms are included in the specification of the minimum clearances.

4.2 Supply Air and Exhaust Air

The standard version of the MVPowerStation is suitable for mounting locations with ambient temperatures up to
+40°C. Ambient temperatures of up to +50°C are possible if the appropriate order option is selected. Ambient
temperatures of up to +55°C are possible with reduced power.

4 Information for Installation

SMA Solar Technology AG

Transportation and Installation Requirements 19MVPS22JP-TA-en-20

Fresh air is drawn in through the ventilation grids in the front of the inverters. The protective roofs must be open to allow
the air to circulate unhindered. The cooling concept of the MVPowerStation uses the service platforms to dissipate the
warm exhaust air. For this reason, the MVPowerStation must always be operated with open service platforms.

Figure 11: Air circulation principle in the MV Power Station with one inverter

Figure 12: Air circulation principle in the MV Power Station with two inverters

The fresh-air requirement of one inverter in the MVPowerStation is 3000m3/h, that of two inverters is 6000m3/h.
The ambient conditions must comply with classification4S2. The inverter is protected against salt spray in accordance
with EN60721-3-4 class4C2.

The MVPowerStation can be installed in chemically active environments, e.g. in coastal areas. In this case, you must
select the appropriate order option. This order option provides the MVPowerStation with enhanced protection against
mechanically and chemically active substances. The ambient conditions must then comply with classifications 4S2 and
4C2. In the standard version, the MVPowerStation meets the requirements of the classifications 4S2 and 4C1.

The air quality requirements are given in the following tables.

The air quality must comply with the following classification of air quality for mechanically active
substances:

Ambient conditions for stationary application Class 4S2 Class 4S4

a) Sand in air [mg/m3] 300 4000

b) Dust (suspended matter) [mg/m3] 5.0 20.0

4Information for Installation

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2020

Ambient conditions for stationary application Class 4S2 Class 4S4

c) Dust (deposited) [mg/m2 h] 20 80

Installation sites in sparsely populated areas, not close to sand
sources.

x x

Installation sites in areas with sand- or dust sources, including densely
populated areas

x x

Installation sites where sand- or dust generating processes exist, or in­stallation sites located in geographic areas in which the wind nor­mally bears sand or dust.

‒ x

Installation sites where the air can regularly contain high levels of
sand or dust - either due to geographical or process-related circum­stances.

‒ x

The air quality must comply with the following classification of air quality for chemically active substances:

Ambient conditions for stationary appli­cation

Class 4C1 Class 4C2

Mean value Threshold valueThreshold value

a) Sea salt ‒ Occurrence of salt spray

b) Sulfur dioxide [mg/m3] 0.1 0.3 1.0

c) Hydrogen sulfide [mg/m3] 0.01 0.1 0.5

d) Chlorine [mg/m3] 0.1 0.1 0.3

e) Hydrogen chloride [mg/m3] 0.1 0.1 0.5

f) Hydrogen fluoride [mg/m3] 0.003 0.01 0.03

g) Ammonia [mg/m3] 0.03 1.0 3.0

h) Ozone [mg/m3] 0.01 0.05 0.1

i) Nitrogen oxides [mg/m3] 0.1 0.5 1.0

Installation sites in rural or densely populated
areas with little industry and moderate traffic
volume

x x

Installation sites in densely populated areas
with industry and high traffic volume

‒ x

4.3 Installation

4.3.1 Design of the System with MVPowerStation

Closed electrical operating area

For safety reasons, the system with the MVPowerStation must be installed in a closed electrical operating area in
accordance with IEC 61936-1.

• Ensure that unauthorized persons have no access to the MVPowerStation.

• Only appropriately trained and qualified persons may operate inverters and perform MV switchgear
switching operations.

4 Information for Installation

SMA Solar Technology AG

Transportation and Installation Requirements 21MVPS22JP-TA-en-20

4.3.2 Support surface

☐ The support surface must be a dry and solid foundation, e.g. gravel.

☐ In areas subject to strong precipitation or high groundwater levels, a drainage system must be implemented.

☐ Do not mount the MVPowerStation into ground depressions to prevent water ingress.

☐ The support surface underneath the MVPowerStation must be clean and firm to avoid any dust circulation.

☐ To facilitate accessibility for servicing operations, the maximum foundation height must not be exceeded. The

maximum foundation height is: 500mm.

4.3.3 Pea gravel ground

Figure 13: Structure of the support surface

Position Designation

A Pea gravel ground

B Solid ground, e.g. gravel

The subgrade must meet the following minimum requirements:

☐ The compression ratio of the subgrade must be 98%.

☐ The soil pressure must be 150kN/m2.

☐ The unevenness must be less than 0.25%.

☐ Minimum clearances for servicing operations must be observed(see Section4.1, page19).

☐ Access roads and areas must be passable, without any obstructions, for service vehicles (e.g. forklifts).

4.3.4 Weight load

The weight load on each of the six support feet of the MVPowerStation is 4000kg.

The installation surfaces (e.g. strip foundations) are to be designed accordingly.

4.3.5 Mounting options

The MVPowerStation can be mounted on flagstones, pile-driven steel pillars, concrete pillars, strip foundations or
foundation plate. The unevenness must be less than 0.25%.

The type of mounting foundation is the responsibility of the customer.

The service platforms must be taken into account when planning the support surface (see Section4.3.6, page26).

Earthquake and Storm Qualification

For the "Earthquake and storm qualification" order option, stricter requirements apply to the support feet and
foundations. The mounting and installation options described below are not adequate for these requirements. In
earthquake and storm areas, a foundation plate with additional reinforcement is recommended (see Section4.3.5.5,
page25). The foundation is the responsibility of the customer. It is still recommended to remove the protective roofs in
storm areas.

4Information for Installation

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2022

4.3.5.1 Flagstones

Recommended dimensions of flagstones: 600mmx600mmx60mm

Figure 14: Pea gravel ground and flagstones (example)

Position Designation

A Flagstones for weight distribution

B Pea gravel ground as required

C Solid ground, e.g. gravel

4.3.5.2 Pile-driven steel pillars

Minimum length of the steel pillars

The driven depth of the steel pillars must satisfy the structural requirements.

Figure 15: Pile-driven steel pillars (example)

Position Designation

A Pile-driven steel pillars

B Solid ground, e.g. gravel

C Pea gravel ground

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4.3.5.3 Concrete pillar

Minimum lengths of the concrete pillars

The below-ground depth of the concrete pillars must satisfy the structural requirements.

The concrete pillars must have the following properties:

☐ The concrete pillars must be suitable for the weight of the product.

☐ The concrete pillars must be mounted on solid ground.

☐ The concrete pillars should have the following minimum dimensions:

750 mm

500 mm

500 mm

Figure 16: Dimensions of the concrete pillars (example)

ABA

C

A A AB

SMA

Figure 17: Concrete pillars (example)

Position Designation

A Concrete pillar

B Solid ground, e.g. gravel

C Pea gravel ground

4.3.5.4 Strip foundations

The strip foundations must have the following properties:

☐ The strip foundations must be suitable for the weight of the product.

☐ The strip foundations must extend at least down to the frost line.

☐ Each strip foundation must have the following width: 500mm to 600mm.

☐ The depth of the strip foundation must be at least 200mm greater on each side than the depth of the container.

4Information for Installation

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2024

Figure 18: Strip foundations (example)

Position Designation

A Strip foundation

B Pea gravel ground

C Solid ground, e.g. gravel

4.3.5.5 Foundation plate

The foundation plate must have the following properties:

☐ The foundation plate must be suitable for the weight of the MVPowerStation.

☐ The foundation plate must be flush with the ground level. This will facilitate vehicle access to the concrete

foundation for device replacement.

☐ The foundation plate must have at least the following dimensions:

Position Dimensions

Width 10060mm for foundation including mounting surface for work platforms

6450mm for foundation of the station container The support surface for the support feet
of the work platforms must be constructed separately.

Depth 6440mm for foundation including mounting surface for work platforms

2850mm for foundation of the station container The support surface for the support feet
of the work platforms must be constructed separately.

For the "Earthquake and storm qualification" order option, the foundation plate must also have the following properties:

☐ The foundation plate be able to support compressive forces of 25N/mm2.

☐ The steel reinforcement must be able to support tensile forces of 500N/mm2.

☐ The long side of the steel reinforcement must be able to support forces up to 56 kN.

☐ The short side of the steel reinforcement must be able to support forces up to 32 kN.

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Transportation and Installation Requirements 25MVPS22JP-TA-en-20

Figure 19: Foundation plate (example)

Position Designation

A Foundation plate

B Pea gravel ground*

C Solid ground, e.g. gravel

* optional

4.3.6 Erecting the service platforms

Foundation planning must include support surfaces for the feet of the service platforms.

To connect the DC cables, it is necessary to open up and step onto the service platforms. Consequently, it must be
possible to erect the service platforms safely and firmly enough to guarantee personal safety when stepping onto the
platform.

The weight load for the support feet is 150kg each. The use of flagstones is recommended for the support surface.

• Recommended dimensions of flagstones: 400mmx400mmx60mm

4Information for Installation

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2026

95 mm

1250 mm 1330 mm

1480 mm

1335 mm

A

B

C

755 mm

1300 mm

265 mm

1300 mm

1250 mm1330 mm265 mm

AB

1165 mm

2155 mm

2250 mm

Figure 20: Position of the support feet of the service platforms

Position Designation

A Support feet of the work platform in front of the inverter compartment

B Support feet of the work platform in front of the MV transformer compartment

C Support feet of the work platform in front of the medium-voltage switchgear compartment*

* Only folded out temporarily

The service platforms are included in the specification of the minimum clearances.

Local regulations for hand rails must be observed. Hand rails for the service platforms are not included in the scope of
delivery of the product and must be provided on-site.

Open Areas below the MVPowerStation for Internal Arc Pressure

The open areas below the MVPowerStation must not be blocked by any other installations or groundfill. The only
permissible exception is the oil spill containment. The areas underneath the MVPowerStation are needed for inverter
ventilation and pressure dissipation in the event of arc faults.

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Transportation and Installation Requirements 27MVPS22JP-TA-en-20

Disregarding this information can lead to personal injury or device failure. SMA Solar Technology AG does not accept
liability for any resulting damage.

0I0I0

I

Figure 21: Internal arc pressure at the MVPowerStation

4.3.7 Recesses in the Support Surface

Recesses for cable routing must be provided in the support surface. For the MVPowerStation with two inverters, an
additional recess is required for the oil spill containment.

During planning of the recesses in the support surface, the positions of the support feet for the station and the service
platforms must be taken into account.

4Information for Installation

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2028

Recesses for MVPowerStation With One Inverter

Figure 22: Position and recommended dimensions of recesses with recommended foundation area

Position Designation

A Recess underneath the inverter for insertion of the following cables:

• DC cable

• Cable for analog setpoint

• Connecting the cable for remote shutdown

• Cable for external insulation monitoring

B Recess underneath the medium-voltage switchgear for insertion of the AC cables:

• Maximum six cables per cable panel; maximum cable diameter: 55mm

C Recess underneath the Communit for insertion of the data cables and grounding cables:

• 3 x PG9 for cable diameters from 6mm to 8mm

• 3 x PG11 for cable diameters from 8mm to 10.5mm

• 4 x PG16 for cable diameters from 13mm to 16mm

• 4 x PG21 for cable diameters from 17mm to 20mm

D MVPowerStation

E Foundation

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Transportation and Installation Requirements 29MVPS22JP-TA-en-20

Recesses for the MVPowerStation with two Inverters

Figure 23: Position and recommended dimensions of recesses with recommended foundation area

Position Designation

A Recess underneath the inverter for insertion of the following cables:

• DC cable

• Cable for analog setpoint

• Connecting the cable for remote shutdown

• Cable for external insulation monitoring

B Recess underneath the medium-voltage switchgear for insertion of the AC cables:

• Maximum six cables per cable panel; maximum cable diameter: 55mm

C Recess underneath the Communit for insertion of the data cables and grounding cables:

• 3 x PG9 for cable diameters from 6mm to 8mm

• 3 x PG11 for cable diameters from 8mm to 10.5mm

• 4 x PG16 for cable diameters from 13mm to 16mm

• 4 x PG21 for cable diameters from 17mm to 20mm

D Recess underneath the transformer compartment:

• Oil spill containment

E Inspection shaft for oil drain valve

4Information for Installation

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2030

Position Designation

F MVPowerStation

G Foundation

4.4 Oil spill containment

The oil spill containment collects any oil which may leak from the MVtransformer.

Depending on the regulations and directives applicable at the mounting location, an oil spill containment may be
required for the MVPowerStation. The oil spill containment for the MVPowerStation can be ordered from SMA Solar
Technology AG.

Figure 24: Position of the oil spill containment (example)

4.4.1 Oil Spill Containment for the MVPowerStation with One Inverter

The oil spill containment must be positioned underneath the transformer compartment. The oil spill containment should
be fitted with theft protection.

Figure 25: Oil spill containment for the MVPowerStation with one inverter

Position Designation

A Inverter

B Transformer compartment

C Medium-voltage switchgear

D Oil spill containment with four oil separators

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Transportation and Installation Requirements 31MVPS22JP-TA-en-20

Position Designation

E Oil drain valve (2'')

F Grounding bolt of the oil spill containment (diameter: 8mm)

Oil Spill Containment Dimensions and Weight

Width Height Depth Weight

1620mm >320mm* 2400mm 100kg

* The height of the oil spill containment can be adjusted.

4.4.2 Oil Spill Containment for the MVPowerStation with Two Inverters

The oil spill containment must be recessed in the foundation and must be positioned underneath the transformer
compartment. There must be enough space in the foundation for the inspection shaft. The support surface around the
oil spill containment should be pea gravel ground. The oil spill containment should be fitted with theft protection.

The inspection shaft is to be installed on-site.

Space for maintenance work must be provided

For the order option with oil spill containment, ensure there is sufficient space available for the oil spill containment
and any necessary maintenance work.

Figure 26: Oil spill containment for the MVPowerStation with two inverters

Position Designation

A Inverter

B Transformer compartment

C Medium-voltage switchgear

D Oil spill containment with four oil separators

E Oil drain valve (2'')

4Information for Installation

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2032

Position Designation

F Pea gravel ground

G Grounding bolt of the oil spill containment (diameter: 8mm)

Oil Spill Containment Dimensions and Weight

Width Height Depth Weight

1620mm >610mm* 2400mm 160 kg

* The height of the oil spill containment can be adjusted.

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Transportation and Installation Requirements 33MVPS22JP-TA-en-20

5 Electrical Connection

5.1 Grounding Concept

In accordance with the latest technology, the inverters are discharged to ground. As a result, leakage currents to
ground occur which must be taken into account when planning the system. The magnitude and distribution of such
leakage currents is influenced by the grounding concept of all devices in the system. It is recommend that optical fiber
technology is used for the transmission of signals, for example, when using cameras and monitoring equipment. This
will counteract possible interference sources.

The recommended grounding of inverter and MV transformer in meshed design reduces leakage current levels.

Grounding of the oil spill containment must be carried out during installation. The two grounding bolts located on the
left side of the oil spill containment can be used for this.

A

B

C

D

E

D

Figure 27: Grounding concept (example)

Position Designation

A Concrete foundation

B MVPowerStation

C Oil spill containment

D Grounding of the oil spill containment

E Grounding of the MVPowerStation

Double grounding of the MVPowerStation

We recommend that the grounding concept provides for double grounding of the MVPowerStation.

5.2 Cable Requirements

Terminal Cable requirements

DC cable • Connection with tin-plated aluminum or copper terminal lug

• Copper or aluminum cable

• Cable cross-section: 25mm2to 400mm

2

5Electrical Connection

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2034

Terminal Cable requirements

Analog setpoint • 2 x 4 mm

2

• The cables used must be shielded against 600V.

Remote shutdown • 2 x 4 mm

2

• The cables used must be shielded.

AC cable • Connection with outer-cone angle plug typeC

Communication interface Connection with Ethernet cables

• The cables must be shielded and pair-twisted.

• The cables must be at least category5 (CAT5).

• Maximum cable length: 100m

or

Connection of optical fibers with optical fiber pigtail*

• 50μm multi-mode optical fiber

• Two optical fiber pigtails with subscriber connector

or

Connection of optical fibers with subscriber connector*

• Two subscriber connectors

Grounding conductor Minimum 1x50mm2 to maximum 2x95mm

2

* optional

5.3 Q at Night

The MVPowerStation can support the grid quality by feeding in reactive power. The inverters can feed in reactive
power up to a displacement power factor of 0.9 during feed-in operation. This corresponds to a reactive power of

43.5% of the nominal power.

5 Electrical Connection

SMA Solar Technology AG

Transportation and Installation Requirements 35MVPS22JP-TA-en-20

When not in feed-in operation, inverters equipped with the order option "QatNight" can feed in up to 30% of the
maximum possible inverter power as reactive power to the utility grid.

Figure 28: Maximum possible load profile of the MVPowerStation

5Electrical Connection

SMA Solar Technology AG

Transportation and Installation RequirementsMVPS22JP-TA-en-2036

6 On-Site Services

The following provisions and services are not included in the product scope of delivery:

• Transport to the construction site (can be carried out by us on request)

• Crane for unloading the product at the construction site (can be supplied by us on request)

• Foundation for the product

• Inspection shaft for the oil drain valve

• Installation of the optional oil spill containment including oil spill containment grounding

• Protective tubes for cable entry

• External grounding system

• All mounting and connection work at the construction site

• Door locks

• Commissioning (can be carried out by us on request)

• Screws and wall plugs for the attachment of the support feet at the foundation

6 On-Site Services

SMA Solar Technology AG

Transportation and Installation Requirements 37MVPS22JP-TA-en-20

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