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Operating Manual
GRID CONNECT BOX 12
GRID-BOX-12-3-20-BE-en-10 | Version 1.0 |
ENGLISH |
Legal Provisions |
SMA Solar Technology AG |
Legal Provisions
The information contained in this document is the property of SMA Solar Technology AG. Publishing its content, either partially or in full, requires the written permission of SMA Solar Technology AG. Any internal company copying of the document for the purposes of evaluating the product or its correct implementation is allowed and does not require permission.
SMA Warranty
You can download the current warranty conditions from the Internet at www.SMA-Solar.com.
Trademarks
All trademarks are recognized, even if not explicitly identified as such. A lack of identification does not mean that a product or symbol is not trademarked.
The BLUETOOTH® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of these marks by SMA Solar Technology AG is under license.
Modbus® is a registered trademark of Schneider Electric and is licensed by the Modbus Organization, Inc. QR Code is a registered trademark of DENSO WAVE INCORPORATED.
Phillips® and Pozidriv® are registered trademarks of Phillips Screw Company. Torx® is a registered trademark of Acument Global Technologies, Inc.
SMA Solar Technology AG
Sonnenallee 1
34266 Niestetal Germany
Tel. +49 561 9522-0
Fax +49 561 9522-100 www.SMA.de
E-mail: info@SMA.de
© 2004 to 2015 SMA Solar Technology AG. All rights reserved.
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SMA Solar Technology AG |
Table of Contents |
Table of Contents
1 Information on this Document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.3 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.4 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.5 Typographies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.6 Nomenclature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Intended Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.2 Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Scope of Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Grid Connect Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 4.2 Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1 Storing the Grid Connect Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.2 Requirements for Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 5.3 Preparing the Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 5.4 Transport. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.4.1 Transport Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 5.4.2 Transporting and Mounting the Grid Connect Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
6 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.1.1 Components and Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 6.1.2 Enclosure Openings in the Floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
6.2 Deactivating All-Pole Disconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6.3 Connecting the Multicluster Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 6.4 Connecting the Utility Grid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6.5 Connecting the Control Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6.6 Mounting the Kick Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7 Preparing the Multicluster System for Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 8 Disconnecting the Grid Connect Box and Multicluster System . . . . . . . . . . . . . . . . . . . . . . . . . 22 9 Periodic Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
9.1 Disassembling the Protective Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 9.2 Mounting the Protective Cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 9.3 Inserting the Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 9.4 Connection to Spring-Cage Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
9.4.1 Connecting Power Cables to Spring-Cage Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 9.4.2 Connecting Control Cables to Spring-Cage Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
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10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
10.1 Inspection of Residual-Current Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
10.2 Checking the Surge Arresters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
10.3 Maintenance Work Every 12 Months. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
11 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
11.1 Disassembling the Grid Connect Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
11.2 Disposing of the Grid Connect Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
12 Technical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
13 Contact. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
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1 Information on this Document |
1 Information on this Document
1.1 Validity
This document is valid for the device type GRID CONNECT BOX 12.3-20 (Grid Connect Box 12).
1.2 Target Group
The activities described in this document must only be performed by qualified persons. Qualified persons must have the following skills:
•Training in how to deal with the dangers and risks associated with installing and operating electrical devices and batteries
•Training in the installation and commissioning of electrical devices
•Knowledge of and adherence to the local standards and directives
•Knowledge of and compliance with this document and all safety information
1.3 Additional Information
Links to additional information can be found at www.SMA-Solar.com.
Document title |
Document type |
MULTICLUSTER BOX 12 |
Installation – circuitry overview |
MULTICLUSTER BOX 12 |
Operating manual |
1.4 Symbols
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Symbol |
Explanation |
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Indicates a hazardous situation which, if not avoided, will result in death or serious injury |
'$1*(5 |
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Indicates a hazardous situation which, if not avoided, can result in death or serious injury |
:$51,1* |
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Indicates a hazardous situation which, if not avoided, can result in minor or moderate injury |
&$87,21 |
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Indicates a situation which, if not avoided, can result in property damage |
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/05*$& |
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Information that is important for a specific topic or goal, but is not safety-relevant |
Indicates a requirement for meeting a specific goal
Desired result
A problem that might occur
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1 Information on this Document SMA Solar Technology AG
1.5 Typographies
Typography |
Use |
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Example |
bold |
• |
Display messages |
• Connect the line conductors to the |
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Parameters |
spring-cage terminals L1, L2 and L3 at |
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Terminals |
terminal X301:8-10. |
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Slots |
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Elements to be selected or |
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entered |
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> |
• |
Links several elements to be |
– |
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selected |
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[Button/Key] |
• Button on device to be selected |
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or pressed |
•Press the [TEST] button on each residual-current device in the Grid Connect Box.
1.6 Nomenclature
Complete designation |
Designation in this document |
Grid Connect Box 12 |
Grid Connect Box |
Multicluster Box 12 |
Multicluster Box |
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2 Safety |
2 Safety
2.1 Intended Use
TheGrid Connect Boxisanautomatictransferswitchwhichenablesthesafeoperationoftheutilitygridandagenerator as energy sources of an SMA Multicluster System.
PV MODULES
PV inverters
PV main distribution box
(not included in the delivery)
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MULTICLUSTER BOX |
GRID-BOX |
UTILITY |
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(Main AC distribution board) |
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LOAD |
Load contactor |
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GRID |
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Generator contactor |
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GENERATOR |
SUNNY ISLAND
BATFUSE
BATTERY
Figure 1: Circuitry principle of the multicluster system with the Grid Connect Box
The technical connection requirements of the grid operator and the local standards and directives specify if the multicluster system, in the event of grid failure, disconnects from the utility grid at all poles or only the line conductors. The Grid Connect Box is always delivered with all-pole disconnection. If all-pole disconnection is not permitted, this configuration of the Grid Connect Box must be deactivated (see Section 6.2, page 18).
If the Grid Connect Box is used with all-pole disconnection, the utility grid must be configured as a TN-S, TN-C-S or TT system. If the Grid Connect Box is used without all-pole disconnection, the utility grid must be configured as a TN-C-S system (for grounding in the multicluster system see operating manual of the Multicluster Box).
DonotexceedthemaximumACconnectionpoweroftheGrid Connect Box.Cableswithcopperwiresmustbeusedfor the installation.
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2 Safety |
SMA Solar Technology AG |
I terms of interference immunity, the product is suitable for EMC environment A, and in terms of EMC emissions, it is suitable for EMC environment B* .
Only operate the Grid Connect Box in conjunction with Multicluster Box.
The Grid Connect Box is designed for use at altitudes up to 3,000 m above mean sea level. If you wish to use the Grid Connect Box at elevations above 3,000 m, contact the SMA Service Line (see Section 13, page 35).
The Grid Connect Box is designed for indoor use only. Only operate the product at temperatures between − 25°C and +60°C.
All work on the product must only be performed using appropriate tools and in compliance with the ESD protection regulations.
Suitable personal protective equipment is to be worn by all persons working on or with the product.
Use this product only in accordance with the information provided in the enclosed documentation and with the locally applicable standards and directives. Any other application may cause personal injury or property damage. Alterations to the product, e.g., modifications or conversions, are only permitted with the express written permission of
SMA Solar Technology AG. Unauthorized alterations will void guarantee and warranty claims and in most cases terminate the operating license. SMA Solar Technology AG shall not be held liable for any damage caused by such alterations.
Any use of the product other than that described in the Intended Use section does not qualify as appropriate.
The enclosed documentation is an integral part of this product. Keep the documentation in a convenient place for future reference and observe all instructions contained therein.
The type label must remain permanently attached to the product.
* in accordance with IEC 61439-1:2011
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SMA Solar Technology AG |
2 Safety |
2.2 Safety Information
This section contains safety information that must be observed at all times when working on or with the product.
To prevent personal injury or property damage and to ensure long-term operation of the product, read this section carefully and observe all safety information at all times.
'$1*(5
Danger to life due to electric shock
High voltages are present in the Grid Connect Box and the multicluster system. Touching live components results in death or serious injury due to electric shock.
•Disconnect the Grid Connect Box and multicluster system from all voltage sources before carrying out any work on the Grid Connect Box (see Section 8, page 22).
•Always operate the Grid Connect Box with its protective cover in place.
•All work on the Grid Connect Box must be carried out by qualified persons only.
•Do not touch any live components in the Grid Connect Box or any other devices of the multicluster system.
&$87,21
Risk of injury if the Grid Connect Box tips over
The Grid Connect Box is heavy and may tip over if not properly fastened to the support surface. This can result in crushing injuries.
• After installation, attach the Grid Connect Box to the support surface.
&$87,21
Risk of burns due to hot components
Components and terminals inside the Grid Connect Box can get hot during operation. Touching hot components can cause burns.
•Always operate the Grid Connect Box with its protective cover in place.
•Prior to removing the protective cover, let the Grid Connect Box cool down.
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3 Scope of Delivery |
SMA Solar Technology AG |
3 Scope of Delivery
Check the scope of delivery for completeness and any apparent external damage. Contact your distributor if any parts of the delivery are missing or damaged.
Figure 2: Components included in the scope of delivery
Position |
Quantity |
Designation |
A |
1 |
Grid Connect Box |
B |
1 |
2-pole N bridge |
C |
10 |
Cable clamp with counter sleeve (22 mm to 28 mm) |
D |
2 |
Fuse link (1 A, tripping characteristic gG) |
E |
2 |
LV/HRC fuse link (200 A, tripping characteristic: gG) |
F |
1 |
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4 Product Description |
4 Product Description
4.1 Grid Connect Box
TheGrid Connect Boxisanautomatictransferswitchwhichenablesthesafeoperationoftheutilitygridandagenerator as energy sources of an SMA Multicluster System.
Figure 3: Grid Connect Box with cabinet door open
Position |
Designation |
Explanation |
A |
Protective cover |
Prevents inadvertent contact with live components during |
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operation and thus protects from electric shocks. When the |
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Grid Connect Box is in operation, the protective cover must |
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always be mounted. |
B |
Fuse holder 1 A |
Used as receptacles for cylindrical thermal fuses (1 A, tripping |
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characteristic gG). The thermal fuses protect the connected |
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conductorsfromexcessiveheatbuild-upduetooverloadorshort |
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circuits. |
C |
Residual-current device |
Protects against electric shock and is always used in addition to |
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existing protective measures such as insulation or protective |
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grounding. As soon as a dangerous touch voltage occurs, the |
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residual-current device switches the loads off at all poles. |
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This is achieved by means of a summation current transformer in |
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the residual-current device which detects the electric currents in |
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the conductors L1, L2, L3 and N. In the normal operating state, |
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the sum of these currents equals zero. Under fault conditions a |
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differential current is formed which trips the residual-current |
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device. |
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4 Product Description |
SMA Solar Technology AG |
Residual-current device
Figure 4: Overview of the residual-current device
Position |
Designation |
Explanation |
A |
Test button |
Thefunctionalityoftheresidual-currentdevicemustbetested |
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regularly (see Section 10.1, page 28). |
B |
Switch lever |
Top position: ON - residual-current device is switched on. |
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Bottomposition:OFF -residual-currentdevicehastrippedor |
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is switched off. |
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