SMA Sunny Central 400MV User manual

Technical Information
SC40-125MVDE-UEN101811 Version 1.1 1/14
Content
This document describes the dimensions, minimum clearances, cable supply and transport conditions that must
be observed to ensure a smooth setup. This document is valid for the following Sunny Central models:
• Sunny Central 400MV
• Sunny Central 500MV
• Sunny Central 630MV
• Sunny Central 800MV
• Sunny Central 1000MV
• Sunny Central 1250MV
Installation Requirements
for the German station concept
for SUNNY CENTRAL 400MV / 500MV / 630MV / 800MV / 1000MV / 1250MV

Technical Information Mechanical data
SMA Solar Technology AG 2/14
1 Mechanical data
Sunny Central 800MV / 1000MV / 1250MV with medium-voltage switchgear
Sunny Central 800MV / 1000MV / 1250MV without medium-voltage switchgear
All figures in mm.
A COM-B, optional B Sunny Central, DC cabinet
C Sunny Central, inverter cabinet D Sunny Central, AC cabinet
E Medium-voltage switchgear F Transformer
G Station sub-distribution
All figures in mm.
A COM-B, optional B Sunny Central, DC cabinet
C Sunny Central, inverter cabinet D Sunny Central, AC cabinet
E Transformer F Station sub-distribution

Technical Information Mechanical data
SMA Solar Technology AG 3/14
Sunny Central 400MV / 500MV / 630MV with medium-voltage switchgear
Sunny Central 400MV / 500MV / 630MV without medium-voltage switchgear
All figures in mm.
A Sunny Central, DC cabinet B Sunny Central, inverter cabinet
C Sunny Central, AC cabinet D Transformer
E Medium-voltage switchgear F Station sub-distribution
G COM-B, optional
All figures in mm.
A Sunny Central, DC cabinet B Sunny Central, inverter cabinet
C Sunny Central, AC cabinet D Transformer
E Station sub-distribution F COM-B, optional

Technical Information Transport Requirements
SMA Solar Technology AG 4/14
2 Transport Requirements
2.1 Freight-forwarding Company
Transport and unloading is coordinated by a freight-forwarding company. Normally, the freight-forwarding
company will arrange a day for delivery and unloading with the site management two weeks prior to the
planned delivery date.
2.2 Ambient Conditions
The transport route within the PV farm must be designed in such a way that the MV station can be transported
by a semi-trailer. The semi-trailer weighs 60 t with a length of 16 m, a width of 3 m, a height of 5 m and a
ground clearance of 0.25 m. At its final destination, the surface must be dry,solid and even.
The concrete station is lifted off the semi-trailer and set down on the foundation by a crane. The pivoting radius
of the crane is 7 m. The semi-trailer must be positioned as indicated in the following graphic.
If the ambient conditions cannot be fulfilled, it may be necessary to use a larger crane. The final crane size is
determined via a visit to the site.
max. 7,000 mmmax. 7,000 mm
7,500 mm
Semi-trailer with MV station
Alternative position for semi-
trailer with MC station
Crane

Technical Information Transport Requirements
SMA Solar Technology AG 5/14
2.3 Foundation
The building pit and foundation are to be set up on site in accordance with the foundation plan. The following
conditions must be fulfilled:
• The digging depth may not exceed 0.8 m.
• Exterior grounding installations are to be executed according to the instructions of the utility operator or
distribution grid operator.
• The work area must have a minimum circumference of 0.5 m.
• The corners of the building pit must be marked.
• Place the material dug out in such a way that the semi-trailer and the crane are not hindered during
transport.
• The ground must have the following properties:
‒ Approx. 100 mm high
‒ Compression ratio: 98 %
‒ Soil pressure: 150 kN/m²
‒ Planning levels deducted
Remove all obstacles prior to delivery such as fences, power lines, trees and such which could hinder
access by the semi-trailer and crane.
Delivery and transport using a crane of up to 7 m radius are included in the scope of delivery. Additional
costs can be accrued during delivery if
• traffic-control measures such as road blocks, police escorts, etc. are necessary.
• a crane with radius of over 7 m is required.
• an extra traction engine is required for steep inclines.
• excavator mats, etc. are needed.

Technical Information Transport Requirements
SMA Solar Technology AG 6/14
The dimensions of the foundation can be found in the following graphic. All figures in mm.
Sunny Central 800MV / 1000MV / 1250MV
Sunny Central 400MV / 500MV / 630MV with medium-voltage switchgear

Technical Information Transport Requirements
SMA Solar Technology AG 7/14
Sunny Central 400MV / 500MV / 630MV without medium-voltage switchgear

Technical Information Electrical Connection
SMA Solar Technology AG 8/14
3 Electrical Connection
3.1 Block diagram
Sunny Central 800MV / 1000MV / 1250MV with medium-voltage switchgear for
ring switching
A DC Input B Sunny Central
C Transformer Dy11y11 D Medium-voltage switchgear C-C-T
E AC Output F External Grounding
G Internal power supply transformer, optional H Station sub-distribution
I External power supply K Communication interface
L COM-B, optional

Technical Information Electrical Connection
SMA Solar Technology AG 9/14
Sunny Central 800MV / 1000MV / 1250MV with medium-voltage switchgear for
cable switching
A DC Input B Sunny Central
C Transformer Dy11y11 D Medium-voltage switchgear R-T
E AC Output F External Grounding
G Internal power supply transformer, optional H Station sub-distribution
I External power supply K Communication interface
L COM-B, optional

Technical Information Electrical Connection
SMA Solar Technology AG 10/14
Sunny Central 800MV / 1000MV / 1250MV without medium-voltage switchgear
A DC Input B Sunny Central
C MS Transformer Dy11y11 D AC Output
E External Grounding F Internal power supply transformer, optional
G Station sub-distribution H External power supply
I Communication interface K COM-B, optional

Technical Information Electrical Connection
SMA Solar Technology AG 11/14
Sunny Central 400MV / 500MV / 630MV with medium-voltage switchgear for
ring switching
A DC Input B Sunny Central
C Transformer Dy11 D Medium-voltage switchgear C-C-T
E AC Output F External Grounding
G Internal power supply transformer, optional H Station sub-distribution
I External power supply K Communication interface
L COM-B, optional

Technical Information Electrical Connection
SMA Solar Technology AG 12/14
Sunny Central 400MV / 500MV / 630MV without medium-voltage switchgear for
cable switching
A DC Input B Sunny Central
C Transformer Dy11 D Medium-voltage switchgear R-T
E AC Output F External Grounding
G Internal power supply transformer, optional H Station sub-distribution
I External power supply K Communication interface
L COM-B, optional

Technical Information Electrical Connection
SMA Solar Technology AG 13/14
Sunny Central 400MV / 500MV / 630MV without medium-voltage switchgear
3.2 Cable supply
Sunny Central 800MV / 1000MV / 1250MV
A DC Input B Sunny Central
C Transformer Dy11 D AC Output
E External Grounding F Internal power supply transformer, optional
G Station sub-distribution H External power supply
I Communication interface K COM-B, optional
Cable entries
Cable entries (HSI 150) of the Hauff-Technik GmbH & Co. KG are needed. For cable inlets which are not
used we recommend: HSI 150-D cable entries closed.
All figures in mm.

Technical Information Color
SMA Solar Technology AG 14/14
Sunny Central 400MV / 500MV / 630MV
3.3 Cable Cross-sections and Torques
The MV station must be included in the potential equalization. The AC connection is to be executed in
compliance with the Installation Guide for the MV switchgear and/or the transformer.
4 Color
All figures in mm.
RAL number Coloring Coloring used for:
RAL 7024 Graphite gray /
aluminum
Doors, air grills
RAL 7024 Graphite gray Roof covers, plinths
RAL 7035 Light gray Exterior walls
RAL 9010 Pure white Interior walls