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TCS 500-SC
User Manual
40 pgs894.66 Kb0
Maintenance manual
28 pgs399.28 Kb0
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SMA TCS 500-SC User Manual

EN
Accessories for Central inverter
TRANSFORMER COMPACT STATION 500SC/630SC/800SC/1000SC/1250SC/1600SC
Installation Manual
TCS-IT-IEN103610 | 98-4041110 | Version 1.0
SMA Solar Technology AG Table of Contents
Table of Contents
1 Information on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Target Group Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Transformer Compact Station . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.1 Low-Voltage Switchgear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.2 Internal Power Supply Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.3 Medium-voltage switchgear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.4 Medium-voltage Transformers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.5 Communit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.6 GSE Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.7 Type Label. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4 Scope of Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5 Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1 Choosing an Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6 Transport and Installation . . . . . . . . . . . . . . . . . . . . . . . . . 15
7 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.1 Set up Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.2 Laying cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.2.1 Running Cables between the Low-Voltage Switchgear and the Inverter. . . . 18
7.2.2 Inserting the Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7.3 Connecting Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.3.1 Connection Area of the Station Sub-Distribution Board . . . . . . . . . . . . . . . . 20
7.3.2 Connecting Cables for Inverter's Internal Power Supply. . . . . . . . . . . . . . . . 21
7.3.3 Connecting Protective Conductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Table of Contents SMA Solar Technology AG
7.3.4 Connecting Inverter to Output Terminal of Transformer Protection
Unit in Station Sub-Distribution Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.3.5 Connecting Cables for the Internal Power Supply of the Transformer
Compact Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.4 Set Voltage on Internal Power Supply Transformer . . . . . . . . . 24
8 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
8.1 Commissioning the Transformer Compact Station . . . . . . . . . . 25
8.2 Inspecting Cabling to the Transformer Compact Station . . . . . 28
8.3 Examining Low AC Voltage in Low-Voltage Switchgear. . . . . . 28
8.4 Connecting the Internal Power Supply for the Transformer
Compact Station . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
8.5 Connecting the Internal Power Supply for the Inverter . . . . . . . 29
9 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
9.1 Transformer Compact Station 500SC. . . . . . . . . . . . . . . . . . . . 30
9.2 Transformer Compact Station 630SC. . . . . . . . . . . . . . . . . . . . 31
9.3 Transformer Compact Station 800SC. . . . . . . . . . . . . . . . . . . . 32
9.4 Transformer Compact Station 1000SC . . . . . . . . . . . . . . . . . . 33
9.5 Transformer Compact Station 1250SC . . . . . . . . . . . . . . . . . . 35
9.6 Transformer Compact Station 1600SC . . . . . . . . . . . . . . . . . . 36
10 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4 TCS-IT-IEN103610 Installation Manual
SMA Solar Technology AG 1Information on this Manual

1 Information on this Manual

Validity
This manual covers the following devices:
• Transformer Compact Station 500SC-IT
• Transformer Compact Station 630SC-IT
• Transformer Compact Station 800SC-IT
• Transformer Compact Station 1000SC-IT
• Transformer Compact Station 1250SC-IT
• Transformer Compact Station 1600SC-IT
Target Group
This manual is intended for skilled workers. Only qualified personnel are allowed to perform the tasks set forth in this manual (see section 2.2"Target Group Qualification",page7).
Additional Information
Additional information is available at www.SMA.de/en:
Title Document Type
Installation requirements for the Italian station concept Transformer Compact Stations 500SC/630SC/800SC/1000SC/
1250SC/1600SC
Technical information
1Information on this Manual SMA Solar Technology AG
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Symbols
Symbol Explanation
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
Indicates a situation that can result in property damage if not avoided.
Indicates information that is important for a specific topic or objective, but
is not safety-relevant. ☐ Indicates a requirement for meeting a specific goal. ☑ Desired result. ✖ Undesired result. The undesired event is followed by a solution on how to
achieve the desired result.
Nomenclature
In this manual, Transformer Compact Stations 500SC-IT/630SC-IT/800SC-IT/1000SC-IT/ 1250SC-IT/1600SC-IT are collectively referred to as the Transformer Compact Station.
In this manual, Sunny Central CP inverters are referred to as Sunny Central or inverters.
6 TCS-IT-IEN103610 Installation Manual
SMA Solar Technology AG 2Security
A
B
C
D
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2Security

2.1 Intended Use

The Transformer Compact Station is a transformer unit that steps up low voltage to medium voltage. The Transformer Compact Station contains low-voltage switchgear and, depending on the options ordered, may also contain medium-voltage switchgear.
The Transformer Compact Station may be connected to CP inverters in the same power class only.
Figure1: Principle of a grid-tied PV plant with a Transformer Compact Station
Position Description
APV modules B Sunny String-Monitor C Sunny Central D Transformer Compact Station E Power distribution grid
Any use not described as intended use or any unauthorized addition or conversion may pose an operational hazard and will void the warranty and operating license.

2.2 Target Group Qualification

Only properly qualified technical personnel may work on the equipment. "Properly qualified" means the personnel have undergone relevant vocational training and are familiar with the contents of this manual.
2Security SMA Solar Technology AG

2.3 Safety Instructions

Electric Shock
Hi gh v olt age s ar e pr ese nt i n th e Tr ans for mer Com pac t St ati on. The Tra nsf orm er C omp act Sta tio n mu st be de-energized before any work is performed on it. All work must comply with the applicable guidelines for the installation site.
• Disconnecting the device: – Low-voltage switchgear – Medium-voltage switchgear – External voltage supply
• Ensure that the device cannot be reconnected.
• Ensure that no voltage is present in the system.
• Ground and short-circuit.
• Cover or safeguard any adjacent live components.
Operating a damaged Transformer Compact Station may cause serious injury from electric shock.
• Operate the Transformer Compact Station only if it is in safe and good working order.
• Operate the Transformer Compact Station only if there is no visible damage, and regularly inspect it for visible damage. Ensure that all external safety equipment is freely accessible at all times and is regularly checked for proper functioning.
Tampering with the device may cause potentially fatal injuries or property damage due to electric shock.
• Do not operate the Transformer Compact Station while the door is open.
• Always lock the Transformer Compact Station.
• Remove the keys from the door locks.
• Keep the keys in a safe place.
Failure to follow this manual and the operating or safety instructions it contains may lead to severe injury from electric shock.
• Only perform work as described in this manual. Observe all safety instructions.
• Establish all electrical connections according to the circuit diagram.
• Keep the documentation for the Transformer Compact Station and for the installed components with the system documentation. They must be accessible at all times.
8 TCS-IT-IEN103610 Installation Manual
SMA Solar Technology AG 2Security
Burn Hazard
Some components, such as fuses, can become hot during operation.
• Wear safety gloves while working on the device.
3Product Description SMA Solar Technology AG

3 Product Description

3.1 Transformer Compact Station

The Transformer Compact Station is a transformer unit that steps up low voltage to medium voltage. The Transformer Compact Station contains low-voltage switchgear and, depending on the options ordered, may also contain medium-voltage switchgear.
The Transformer Compact Station is connected to CP inverters in the same power class. Inverters convert direct current to alternating current. The alternating current is then supplied to the transformer. The alternating current is transmitted from the transformer to the switchgear and fed into the power distribution grid.
Figure2: Assembly
Position Description
A Communit communication distribution box B GSE meter
*
*
C Low-voltage switchgear D Station sub-distribution E Disconnector for internal power supply transformer F Internal power supply transformer
*
*
G Medium-voltage Transformers H Medium-voltage switchgear
*
Optional
*

3.1.1 Low-Voltage Switchgear

The low-voltage switchgear connects the Transformer Compact Station to the inverters. The low­voltage switchgear can be used to disconnect the Transformer Compact Station from the inverters.
10 TCS-IT-IEN103610 Installation Manual
SMA Solar Technology AG 3Product Description

3.1.2 Internal Power Supply Transformer

The internal power supply transformer supplies power to the Transformer Compact Station and the inverter. Supply voltage is 230 V/400 V (3/N/PE)

3.1.3 Medium-voltage switchgear

The medium-voltage switchgear is used to disconnect the Transformer Compact Station from the medium-voltage power grid.

3.1.4 Medium-voltage Transformers

The medium-voltage transformer steps up low voltages to medium voltages.

3.1.5 Communit

The Communit communication distribution box is used to hold and cable all the communication components used in large PV plants with Sunny Central, Sunny Mini Central, or Sunny Tripower.

3.1.6 GSE Meter

This Gestore dei Servizi Elettrici meter is used to meter energy consumption on the low-voltage side of the transformer and to receive Conto Energia feed-in tariffs.

3.1.7 Type Label

The type label is used to identify the Transformer Compact Station. The type label is located inside to the right on the low-voltage side. The information listed on the type label includes the following:
•Type designation
•Serial number
• Date of manufacture
Installation Manual TCS-IT-IEN103610 11
4Scope of Delivery SMA Solar Technology AG
A
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CD F
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SMA
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4Scope of Delivery

Check the delivery for completeness and any visible external damage. If the shipment is incomplete or damaged, contact SMA Solar Technology AG.
Figure3: Scope of Delivery
Position Quantity Description
A 1 Transformer Compact Station B1Gloves C 1 Fire extinguisher D 1 Installation manual, circuit diagram, documentation E 6 Cable entries F1Operating lever G9/18
*
9 cables per inverter
**
Optional
*
ÖLFLEX® TRAFO cables
**
**
12 TCS-IT-IEN103610 Installation Manual
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