Download StringMaster CS 2-6 SW

USER’S AND INSTALLATION MANUAL / GEBRUIKERS- EN INSTALLATIEHANDLEIDING
BEDIENUNGS- UND INSTALLATIONSANLEITUNG / MANUEL UTILISATEURS ET D’INSTALLATION
MANUAL DEL USUARIO Y DE INSTALACIÓN / MANUALE DI USO E MANUTENZIONE
StringMaster CS 2-6 SW
2 x 6 string box for the CS TL inverter
MASTERVOLT
Snijdersbergweg 93,
1105 AN Amsterdam
The Netherlands
Tel.: +31-20-3422100
Fax.: +31-20-6971006
www.mastervolt.com
ENGLISH:
NEDERLANDS:
DEUTSCH:
FRANÇAIS:
CASTELLANO:
ITALIANO:
PAGE 1
PAGINA 9
SEITE 17
PAGINA 29
PÁGINA 41
PÁGINA 53
Copyright © 2010 Mastervolt, v 1.2 October 2010
OVERVIEW
OVERVIEW STRINGMASTER CS 2-6 SW
1
4
5
2
6
3
7
8
9
Figure 1: Inside view of the CS 2-6 SW
1. String input 1 Positive
2. Input 1 to inverter: +, PE, 3. String input 1 Negative
A
4. SPD Input 2
5. DC Switch
6. SPD Input 1
7. String input 2 Positive
8. Input 2 to inverter: +, 9. String input 2 Negative
B
12x
A. User’s manual
B. 12 Dummy fuses
Figure 2: Standard delivery with CS 2-6 SW
2
October 2010 / StringMaster CS 2-6 SW / EN
CONTENTS
CONTENTS:
v 1.2 October 2010
1
GENERAL INFORMATION.............................................................................................................................................. 3
2
SAFETY GUIDELINES AND WARNINGS....................................................................................................................... 4
3
HOW IT WORKS.............................................................................................................................................................. 4
4
BEFORE YOU START..................................................................................................................................................... 5
5
INSTALLATION AND COMMISSIONING........................................................................................................................ 5
5.1
Things you need for installation.......................................................................................................................... 5
5.2
Installation step by step ...................................................................................................................................... 6
5.3
Connection of strings.......................................................................................................................................... 6
5.4
Commissioning after installation......................................................................................................................... 7
5.5
De-commissioning.............................................................................................................................................. 7
6
OPERATION .................................................................................................................................................................... 7
7
CE DECLARATION OF CONFORMITY .......................................................................................................................... 7
8
TECHNICAL DATA.......................................................................................................................................................... 8
1 GENERAL INFORMATION
1.1
PRODUCT DESCRIPTION
The Mastervolt StringMaster CS2-6 SW, further referred to
as “StringMaster” is an IP65 connection box for up to
twelve PV strings. It combines the strings to two strings for
connection with the CS TL solar inverters.It features:PV
fuses;SPD’s (Over voltage protection); DC switch.
1.2
USE OF THIS MANUAL
Copyright © 2010 Mastervolt. All rights reserved.
Reproduction, transfer, distribution or storage of part or all
of the contents in this document in any form without the
prior written permission of Mastervolt is prohibited.
This manual serves as a guideline for the safe and
effective installation of the StringMaster:
• For the electrician this manual provides directions for
the installation, operation and commissioning.
• For the end-user this manual gives directions for the
operation, maintenance and possible correction of
minor malfunctions of the StringMaster.
• Every person who works with the apparatus should be
familiar with the contents of this manual, and must
carefully follow the instructions contained herein.
• Store the manual in a user accessible place.
1.3
VALIDITY OF THIS MANUAL
All the specifications, provisions and instructions contained
in this manual apply solely to the Mastervolt-delivered
standard version of the StringMaster.
1.4
GUARANTEE SPECIFICATIONS
Mastervolt assures the product guarantee of the
StringMaster during five years after your purchase, on the
condition that all instructions and warnings given in this
manual are taken into account during installation and
operation.
Among other things, this means that installation is carried
out by a qualified electrician, that installation and
maintenance are executed according to the stated
instructions and correct working sequence and that no
EN / StringMaster CS 2-6 SW / October 2010
changes or repairs may have been performed on the
StringMaster other than by Mastervolt.
The warranty is limited to the costs of repair and/or
replacement of the product by Mastervolt only. Costs for
installation labour or shipping of the defective parts are not
covered by this warranty. For making an appeal on
warranty you can contact your supplier directly, stating
your complaint, application, date of purchase and part
number / serial number.
1.5
LIABILITY
Mastervolt accepts no liability for:
• consequential damage due to use of the StringMaster;
• possible errors in the manuals and the results thereof.
1.6
CHANGES TO THE STRINGMASTER
Changes on the StringMaster may be carried out only after
the written permission of Mastervolt.
The identification label (see figure 3) is positioned at the
right side under the StringMaster.
CAUTION!
Never remove the identification label.
1.7
IDENTIFICATION LABEL
131300300
Figure 3
3
SAFETY GUIDELINES AND WARNINGS
2 SAFETY GUIDELINES AND WARNINGS
2.1
WARNINGS AND SYMBOLS
Safety instructions and warnings are marked in this
manual by the following pictograms:
A procedure, circumstance,
deserves extra attention.
etc
•
2.4
which
CAUTION!
Special
information,
commands
prohibitions in order to prevent damage.
be familiar with the contents of this manual. This
applies particularly to Chapter 2, Safety Guidelines &
Warning.
INSTALLATION, MAINTENANCE AND REPAIR
WARNING
As high voltages exist, only allow installation,
maintenance and repair of the StringMaster
and changes in your electrical system to be
carried out by qualified electricians.
Connections and safety features must be executed
according to the locally applicable regulations.
If such are required, only use original spare parts.
and
WARNING
A WARNING refers to possible injury to the
user or installer or significant material damage
to the StringMaster if the installer / user does
not (carefully) follow the stated procedures.
2.5
WARNING
On the lid, this warning has been printed:
Attention! The system may still be energized after it was
switched off. Opening only by a certified electrician.
2.2
USE FOR INTENDED PURPOSE
The StringMaster is constructed according the applicable
safety-technical guidelines. Use the StringMaster only in
installations that meet the following qualifications:
• in permanent installations;
• the electrical installation must meet the applicable
regulations and standards, must be carried out
correctly and must be in a good condition;
• according to the technical specifications as stated in
section 8.1.
2.6
WARNING
Never use the StringMaster in situations
where there is danger of gas or dust explosion
or potentially flammable products!
Use of the StringMaster other than as mentioned under §
2.2 is not considered to be consistent with the intended
purpose. Mastervolt is not liable for any damage resulting
from the above.
WARNING OF SPECIAL DANGERS
DC voltages up to 1000V may exist in the
StringMaster, also with the DC switch in the
Off position.
The voltages present at both sides of the
StringMaster are not safe to touch and cannot
be switched off at the PV panel side.
Do not work on the StringMaster and/or the
electrical installation if it is still connected to
the PV panels or the inverter. Allow time for
the inverter capacitors to de-energize. Verify
de-energizing of all connections using a
suitable metering instrument.
Make sure two persons are present when
working on an installation, at least until the
installation has been de-energized and
verified by a suitable metering instrument.
2.3
ORGANISATIONAL MEASURES
The installer / user must always:
• have access to this manual;
3 HOW IT WORKS
WORKING PRINCIPLE
inverter. The electrical components in the StringMaster are
housed in an IP65 compartment.
Fuses
(2 per string)
Parallel
Overvoltage
protection
DC Switch
Fuses
(2 per string)
Parallel
Overvoltage
protection
DC Switch
Input from 2x6 PV strings
See figure 4. The StringMaster combines the strings of PV
panels to two solar inputs for a CS15TL/CS20TL solar
Output to inverter
3.1
CS 20 TL
Figure 4: StringMaster working principle
4
October 2010 / StringMaster CS 2-6 SW / EN
BEFORE YOU START
4 BEFORE YOU START
4.1
TRANSPORT, LIFTING AND STORAGE
•
Ensure adequate and secure packaging during
transportation of the StringMaster. Always use suitable
handling equipment for transportation.
•
4.2
•
INSTALLATION ENVIRONMENT
Obey the following stipulations during installation:
• The StringMaster is designed for both indoor and
outdoor use, according to safety class IP65;
• The StringMaster must be mounted close to the
inverter because of the DC switch;
• Ambient temperature: -20 to 40°C;
• Mount the StringMaster to a solid wall, with the glands
facing sidewards.
4.3
•
•
Do not install the StringMaster if the solar
system does not comply with the stipulations
mentioned above.
DC CONFIGURATION
The solar or DC side of the system consists of several
photovoltaic (solar) modules, further referred to as “PV
modules”. The PV modules are connected in series to
form a so called “string”. These strings consist of a plus (+)
and a minus (–) connection which can be connected
directly to the CS20TL or indirectly via the StringMaster.
The cabling between the StringMaster and the inverter
must be double insulated and suitable for 1000 V DC.
The calculated string voltage equals the open circuit
voltage (Uoc) per PV module (refer to the specifications of
the PV module), multiplied by the number of PV modules
in each string. Depending on the solar irradiation and
temperature, the measured string voltage amounts to 7095% of the calculated value.
4.4
Lightning hazard
Risk of direct lightning strike (LPZ0)
Risk of indirect lightning strike (LPZ1)
Low risk of surge damage (LPZ2)
LIGHTNING PROTECTION
In a solar installation, precautions must be taken to avoid
damage from induced surges caused by lightning. A Surge
Protection Device (SPD) helps to attenuate the impulse
voltage to the value specified. See the table below for an
overview of the SPD’s to install. Also refer to the standard
EN 62305, defining Lightning Protection Zones (LPZ).
The risk of induced surges exists on all cables
longer than 10m: PV, AC and communication
cables!
The risk of system damage caused by
overvoltages is attenuated by bundling +, -,
PE and shielding the cables.
4.3.1
PV installation requirements
The PV installation has to meet next specifications:
Installation
Outside, on a roof
Cable length > 10 m
Cable length < 10 m
The maximum open circuit string voltage for each
power module at lowest possible temperature of the
string may not exceed 1000V;
Double isolated PV wiring, fitted with MultiContact
connectors (at the inverter side) must be used;
The maximum power connected to the stringbox may
not exceed 1000Vdc/ 30Adc at the output;
All connection devices (wiring, terminal blocks, fuse
holders, fuses, switches, etcetera) must be rated for
the applicable voltage (up to 1000V DC) and current
ratings (up to 30A DC) of the solar installation.
SPD’s required, see next section.
SPD type
I or combination I + II (if cable length > 10 m)
II (two type II SPD’s are integrated in the StringMaster)
III (integrated in the CS20TL inverter)
5 INSTALLATION AND COMMISSIONING
CAUTION
CAUTION!
Until all wiring has been verified to be deenergized for safety reasons, at least 2
persons are required during installation.
Verify that all wiring is disconnected from any
energy source during the entire installation.
Use suitable testing equipment.
Before insulation test, remove plug in units
from over voltage protection to prevent
damage.
CAUTION!
Read chapters 2 and 4 prior to installation.
CAUTION!
Short circuiting, miswiring or reverse polarity
may lead to damage to the StringMaster, the
cabling and/or the terminal connections.
Follow all steps of the installation instructions
in order of succession as described.
EN / StringMaster CS 2-6 SW / October 2010
5.1
THINGS YOU NEED FOR INSTALLATION
Make sure you have all the parts you need to install the
StringMaster:
• StringMaster CS 2-6 SW (included).
• This user’s manual (included).
• 4 screws to fix the enclosure to the wall.
• Tools to fix the StringMaster enclosure to the wall
• Tools to install the wiring.
5
INSTALLATION AND COMMISSIONING
5.2
1
High voltages (up to 1000 VDC) may exist on
the PV strings! Connection of the DC cabling
may only be carried out if the DC cables are
potential free.
During installation the PV modules must be
disconnected from the DC cabling (for
instance by disconnecting the MultiContact
connectors at the PV modules).
Protect the StringMaster against direct
sunlight and rain by mounting it under a roof,
not on top of the roof.
INSTALLATION STEP BY STEP
Fix the four mounting pieces supplied to the
StringMaster, using the M6 screws.
Fix the StringMaster to the wall. See figure 7. Use
suitable screws and plugs.
Put the switch in position “0” like figure 5 and open the
lid of the StringMaster.
Connect the Protective Earth cable (PE).
Connect wiring to the inverter.
Connect the wiring from the PV strings.
Place the fuses.
Close the lid securely to prevent moist leaking inside.
2
3
4
5
6
7
8
See figure 5. Mount the StringMaster to a flat
surface, preventing it from bending when
being fixed in place. The box sealing only
works correctly when the box is not bent.
WARNINGS
To avoid damage to the StringMaster in case
of miswiring, connect all minus wires first.
580
22.8
7.5
0.30
10
0.39
1
1.06
15.0
A
380
27
0
A
0
1
Figure 5:
Drilling dimensions,
Installation environment,
Button position to close the lid
5.3
CONNECTION OF STRINGS
The StringMaster CS 2-6 SW accommodates maximum
six strings per inverter solar input. This means it can
accommodate maximum 12 strings.
String inputs
String fuses
The StringMaster string box contains fuse holders at both
the positive and negative DC input lines. In total, 24 fuses
can be placed. Fuses in the positive input lines are
compulsory. The StringMaster CS 2-6 SW is standard
equipped with dummy fuses in the negative input lines.
SPD (overvoltage
protection)
DC Switch
Output to inverter
Figure 6: Functional scheme Stringmaster Sw
5.3.1
Fuse rating selection
For Mastervolt fuse rating selection, use next formula.
In > Isc * 1.56, In = fuse rating, Isc = short circuit current of
the PV strings connected. The next fuse available with a
current higher than In, should be selected.
Example: Isc = 7.95 A. In = 1.56 * 7.95 = 12.4 A. The next
higher fuse is 15A, this equals the fuse rating.
6
5.3.2
Equal strings
All strings connected to the same Solar-input should exist
of an equal number of identical PV modules. Mastervolt
recommends that the maximum power connected to each
inverter input will not exceed 13 kWp and that the total
power must be distributed equally over the two Solarinputs as much as possible.
October 2010 / StringMaster CS 2-6 SW / EN
OPERATION
5.4
COMMISSIONING AFTER INSTALLATION
To check the correct operation of the
StringMaster, commissioning should be
carried out during daytime only.
5.5
DE-COMMISSIONING
If it is necessary to take the StringMaster out of operation,
follow the instructions in order of succession as described
below:
Move the DC switch to the ON position (vertical). There
are two ON positions, see figure 1.
CAUTION!
Follow below mentioned instructions in order
of succession as described.
1
2
Make sure there is no DC voltage present
Check with a suitable voltmeter whether the inputs
and the outputs of StringMaster are voltage free.
3 Disconnect the MultiContact connectors from the
inverter.
4 Disconnect the DC wiring.
Now the StringMaster can be demounted in a safe way.
6 OPERATION
6.1
GENERAL
After installation and commissioning the StringMaster is
switched on by turning the DC switch to On. The switch
has two On and Off positions to facilitate switching.
6.2
MAINTENANCE
If necessary, use a soft clean cloth to clean the enclosure
of the StringMaster. Never use any liquids, acids and/or
scourers. Examine your electrical installation on a regular
base, at least once a year. Defects such as loose
connections, burnt wiring etc. must be corrected
immediately.
7 CE DECLARATION OF CONFORMITY
We,
Manufacturer
Address
Mastervolt
Snijdersbergweg 93
1105 AN Amsterdam
The Netherlands
Declare under our sole responsibility that the product:
Article number Product name
131300300
Stringmaster CS 2-6 SW
is in conformity with the provisions of the following EC directive:
Low Voltage Directive 2006/95/EC
The following harmonized standards have been applied:
Low Voltage Switchgear
EN 60439-1
Low Voltage Switchgear
EN 60439-2
Low Voltage Switches
EN 60947-3
Amsterdam,
Ing. D.R. Bassie
Product Manager Solar
23-08-2010
EN / StringMaster CS 2-6 SW / October 2010
7
TECHNICAL DATA
8 TECHNICAL DATA
TECHNICAL SPECIFICATIONS
GENERAL SPECIFICATIONS
Model
Part number
Operating temp.
Protection degree
Relative humidity
Safety class
Weight
Dimensions
SOLAR INPUT (DC)
Recommended PV power range
Maximum input power
String connections
Safety measures
18kWp – 25 kWp
30 kW DC
2x6 - string box with DC switch, surge protection and string fuses
DC fuses,
Overvoltage protection,
DC switch
OUTLINE DRAWINGS
23.62
400
15,74
5.18
600
25.59
171,2
650
6.74
8.2
StringMaster CS 2-6 SW
131300300
-20°C ... 60°C / -4°F … 140°F
IP 65
70%
Class II
8.0 kg
See figure 7
131,5
8.1
Figure 7: Dimensions in mm [inch]
8.3
ORDERING INFORMATION
Part number
Description
131300300
StringMaster CS 2-6 SW, string box for maximum 2x6 strings
131300100
Isolation transformer CS-IT20
Mastervolt offers a wide range of products for both grid connected and independent autonomous electrical installations.
See our website www.mastervolt.com for an extensive overview of all our products.
Snijdersbergweg 93, 1105 AN Amsterdam, The Netherlands
Tel : + 31-20-3422100
Fax : + 31-20-6971006
Email : [email protected]